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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4613. Отображено 100.
26-01-2012 дата публикации

Method and apparatus for heating sheet material

Номер: US20120021916A1
Автор: Carsten Buehrer, Christoph Fuelbier, Jens Krause
Принадлежит: ZENERGY POWER GMBH

A method and an apparatus for heating a sheet material made of an electrically conductive, non-magnetic material, the apparatus including at least one coil arrangement with DC-carrying windings that is made to rotate around an axis oriented perpendicular to the sheet material and to thereby induce eddy currents in the sheet material.

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Номер записи: 1
25-04-2013 дата публикации

MECHANICAL COMPONENT AND METHOD OF SURFACE HARDENING

Номер: US20130098512A1
Автор: Burtchen Marco
Принадлежит:

Mechanical component () having a hole () extending therethrough and having a minimum thickness (T) of 7 mm, measured from an interior surface () constituting the outer perimeter of the hole () radially outwards to an outer surface of said mechanical component (). The maximum transverse dimension (d) of said hole () is 31.75 mm or less and that at least one part () of interior surface () material of the mechanical component () constituting the outer perimeter of said hole () comprises a martensitic microstructure produced by induction hardening using an electromagnetic induction coil () positioned inside said hole () followed by immediate quenching using a quenching device () that is positioned inside said hole () when the electromagnetic induction coil () has been removed from said hole () or while the electromagnetic induction coil () is being removed from said hole (). 1. A mechanical component comprisinga cylindrically shaped body having a hole extending therethrough and having a minimum thickness of 7 mm, measured from an interior surface constituting the outer perimeter of the hole radially outwards to an outer surface of said cylindrically shaped body,of said hole is having a maximum transverse dimension of 31.75 mm or less, andat least one part of interior surface material of the cylindrically shaped body constituting the outer perimeter of said hole comprises a martensitic microstructure produced by induction hardening using an electromagnetic induction coil positioned inside said hole followed by immediate quenching using a quenching device that is positioned inside said hole when one of:a) the electromagnetic induction coil has been removed from said hole, orb) while the electromagnetic induction coil is being removed from said hole.2. The mechanical component according to claim 1 , wherein said at least one part of the interior surface extends to a depth that is of one of 0.2 claim 1 , 0.3 claim 1 , 0.4 claim 1 , 0.5 claim 1 , 0.75 claim 1 , 1.0 mm below ...

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Номер записи: 2
09-05-2013 дата публикации

MELTING SYSTEM

Номер: US20130112709A1
Автор: Quam Paul R., Ross Daniel P.
Принадлежит: GRACO MINNESOTA INC.

A hot melt dispensing system includes a container for storing solid hot melt material, a hot press melter having a loading position for receiving solid hot melt material and a melting position for applying heat and pressure to liquefy the hot melt material, a feed system for transporting solid hot melt material from the container to the hot press melter and a dispensing system for administering the liquefied hot melt material. 1. A hot melt dispensing system comprising:a container for storing solid hot melt material;a hot press melter having a loading position for receiving solid hot melt material and a melting position for applying heat and pressure to liquefy the hot melt material;a feed system for transporting solid hot melt material from the container to the hot press melter; anda dispensing system for administering the liquefied hot melt material.2. The system of claim 1 , wherein the hot press melter comprises:a first heated plate having a first side;a second heated plate having a second side generally opposite the first side; anda press drive for varying a distance between the first side of the first heated plate and the second side of the second heated plate to receive hot melt material between the first and second plates in the loading position and to apply pressure and heat to liquefy the hot melt material in the melting position;3. The system of claim 1 , wherein the first heated plate and the second heated plate each comprise a heating element selected from the group consisting of cast heaters claim 1 , resistive heating elements and cartridge heaters.4. The system of claim 1 , wherein the second plate further comprises a drain for removing the liquefied hot melt material from the melter.5. The system of claim 4 , wherein the melter further comprises:a perforated plate located between the first plate and the second plate for preventing solid hot melt pellets from entering the drain, but allowing liquefied hot melt material to enter the drain.6. The ...

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Номер записи: 3
06-06-2013 дата публикации

HEATING COIL

Номер: US20130140299A1
Автор: KIYOSAWA Yutaka, Ogawa Yasuharu, Sugiyama Yutaka
Принадлежит: NETUREN CO., LTD.

A heating coil includes a pair of linear lead portions adapted to be connected to a power supply, and a ring-shaped or coil-shaped head portion having end portions connected to the lead portions respectively. A flow path through which a cooling medium flows is formed inside the lead portions and the head portion. An outer circumferential surface of the head portion has a circular or elliptical cross section and is configured to face a heating target portion of an inner circumferential surface of a work extending, the heating target portion extending in a circumferential direction of the work. Each of the lead portions has a straight side portion in a plane intersecting a longitudinal direction of the lead portions, the straight side portions of the lead portions being arranged in proximity to each other. 1. A heating coil comprising:a pair of linear lead portions adapted to be connected to a power supply; anda ring-shaped or coil-shaped head portion having end portions connected to the lead portions respectively,wherein a flow path through which a cooling medium flows is formed inside the lead portions and the head portion,wherein an outer circumferential surface of the head portion has a circular or elliptical cross section and is configured to face a heating target portion of an inner circumferential surface of a work, the heating target portion extending in a circumferential direction of the work, andwherein each of the lead portions has a straight side portion in a plane intersecting a longitudinal direction of the lead portions, the straight side portions of the respective lead portions being arranged in proximity to each other.2. The heating coil according to claim 1 , wherein each of the lead portions has a rectangular cross section taken along the plane intersecting the longitudinal direction of the lead portions claim 1 , and wherein one side of the rectangular cross section forms the straight side portion.3. The heating coil according to claim 2 , wherein ...

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Номер записи: 4
13-06-2013 дата публикации

HEATER AND GLOW PLUG PROVIDED WITH SAME

Номер: US20130146579A1
Автор: Hiura Norimitsu
Принадлежит: KYOCERA CORPORATION

A heater includes a resistor including a heat-generating portion, one or more leads joined to end portions of the resistor, and an insulating base body which covers the resistor and the leads, and a joining portion between the resistor and the leads includes a region where the resistor is spaced apart from the insulating base body by way of the leads over a whole circumference of the resistor when viewed in cross section of the joining portion. 1. A heater , comprising:a resistor comprising a heat-generating portion;one or more leads joined to end portions of the resistor; andan insulating base body which covers the resistor and the leads, whereina joining portion between the resistor and the leads comprises a region where the resistor is spaced apart from the insulating base body by way of the leads over a whole circumference of the resistor when viewed in cross section of the joining portion.2. The heater according to claim 1 , whereina profile of the resistor in the joining portion is tapered toward a side opposite to the heat-generating portion.3. The heater according to claim 1 , whereinthe resistor has a folded shape,the leads are joined to each of the end portions of the resistor, respectively, anda centroid of the resistor is positioned outside a centroid of each of the leads when the joining portion is viewed in cross section perpendicular to an axial direction of each of the leads.4. The heater according to claim 1 , whereinthe resistor has a folded shape,the leads are joined to each of the end portions of the resistor, respectively, andan inner-side inclination angle is set steeper than an outer-side inclination angle when the joining portion is viewed in cross section parallel to the axial direction of each of the leads.5. The heater according to claim 1 , whereinthe resistor has a folded shape,the leads are joined to each of the end portions of the resistor, respectively, anda distal end surface of each of the leads is inclined inwardly when the joining ...

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Номер записи: 5
25-07-2013 дата публикации

FELT HEATER AND METHOD OF MAKING

Номер: US20130186884A1
Автор: Barfuss Jack, Iqbal Syed Rafat, Zuzga Matt
Принадлежит: W.E.T. AUTOMOTIVE SYSTEMS, LTD.

A heater comprising: (a) a non-woven heating layer having: a forward surface, a rearward surface, and a plurality of edges around a periphery of the heating layer; (b) two or more connections to a power source; wherein the heating layer is made up of a plurality of individual fibers that are randomly oriented; and wherein substantially all of the non-woven heating layer produces heat when power is to the non-woven heating layer. 1. A heater comprising: a plurality of individual fibers that are randomly oriented;', 'a plurality of voids and/or pores interspersed between the plurality of individual fibers that are randomly oriented, and', 'a plurality of edges around a periphery of the heating layer;, 'a) a non-woven heating layer havingb) two or more power applications connecting the heater to a power source; andwherein substantially all of the non-woven heating layer produces heat when power is applied to the non-woven heating layer through the two or more power applications so that the heater has a substantially uniform heating density.2. The heater of claim 1 , wherein the plurality of individual fibers that are randomly oriented are a plurality of carbon fibers;wherein the plurality of individual fibers are connected by a binder and the binder is present in an amount from about 1 percent to about 20 percent; andwherein the carbon fibers are present in an amount from about 80 percent to about 99 percent.3. The heater of claim 1 , wherein the plurality of individual fibers that are randomly oriented are a plurality of polymeric fibers that are coated with a metal so that the plurality of metal coated polymeric fibers are conductive.4. The heater of claim 3 , wherein the metal is gold claim 3 , silver claim 3 , copper claim 3 , nickel claim 3 , or a combination thereof and the polymeric material is nylon claim 3 , polyester claim 3 , polyurethane claim 3 , an aramid claim 3 , a para-aramid claim 3 , a meta-aramid claim 3 , or a combination thereof.5. The heater of ...

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Номер записи: 6
07-11-2013 дата публикации

ANNUALING SEPARATION AGENT FOR PRODUCING GRAIN-ORIENTED SILICON STEEL WITH SMOOTH SURFACE AND GOOD MAGNETIC PROPERTY

Номер: US20130292005A1
Автор: JI Yaming, Li Dengfeng, Li Guobao, Xu Yunpeng, Yang Yongjie, ZHAO Zipeng
Принадлежит:

An annealing separator for manufacturing grain-oriented silicon steel with mirror-like surface having good magnetic performance consists of the composition of which is 77˜98 by wt % of AlOpowder, 1˜8 by wt % of alkaline earth powder, 1˜15 by wt % of alkali metal chloride and/or alkaline earth metal chloride. The annealing separator of the invention can avoid forming a glass-film undercoating on the surface of the steel sheet during high-temperature annealing, and at the same time, the oxide embedded at near-surface of the sheet is removed by means of corrosive reaction of the chloride, so that a produce with smooth surface and stable magnetic performance is obtained.

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Номер записи: 7
19-12-2013 дата публикации

METHOD AND APPARATUS FOR TREATING A STEEL ARTICLE

Номер: US20130333811A1
Автор: BATISTE John, COOPER Brad, HASELKORN Mike, NICHOLSON Brent, SLOAN Jim, SPARLING Jack, TUREK Mark, ZYRA Todd
Принадлежит: BUFFALO ARMORY LLC

A method for forming and treating a steel article of a high strength and high ductility alloy particularly suited for use as armor plate. The method includes the steps of providing a starting material for the steel article, heating the starting material to a peak temperature range in less than ten seconds, holding the heated steel composition at the peak temperature range for between two and six seconds, quenching the heated steel composition from the peak temperature range to below 100° C. (212° F.) at a temperature rate reduction of 400 and 3000° C./sec (752 and 5432° F./sec), removing residual quench media from the surface of the quenched steel composition, tempering the quenched steel composition at a temperature of 100 to 260° C. (212 to 500° F.); and air cooling the tempered steel composition to less than 100° C. (212° F.) to form a steel having desired mechanical properties. 1. A method for treating a steel article to form a high hardness and ductile alloy comprising the steps of:(a) providing a steel composition having a material thickness less than 0.5 inches (12.7 mm), having an initial microstructure of ferrite and pearlite, and having a composition of, by weight,carbon between 0.25 and 0.55%silicon between 0.15 and 0.35%,manganese between 0.40 and 1.0%,chromium between 0.80 and 1.10%,molybdenum between 0.15 and 0.25%,sulfur less than 0.040%,phosphorus less than 0.035%;(b) heating the provided steel composition to a peak temperature of between 850° C. (1562° F.) and 1150° C. (2102° F.) in less than ten seconds;(c) holding the heated steel composition at the peak temperature range for between two and ten seconds;(d) quenching the heated steel composition from the peak temperature range to below 100° C. (212° F.) at a temperature rate reduction of between 400 and 3000° C./sec (752-5432° F./sec);(e) removing residual quench media from the surface of the quenched steel composition;(f) tempering the quenched steel composition at a temperature from 100° C. to ...

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Номер записи: 8
19-12-2013 дата публикации

WIRE ELECTRODE ANNEALING PROCESSING METHOD AND WIRE ELECTRIC DISCHARGE MACHINING DEVICE

Номер: US20130334187A1
Автор: Liu Zhengyong, Nagaoka Rintaro
Принадлежит: Mitsubishi Electric Corporation

Values of a current and a voltage from a heating power supply device that supplies a current to a wire electrode and that heats the wire electrode are measured, a load resistance value is calculated by dividing the voltage value by the current value, a resistance increment of the wire electrode is calculated from an increased amount in the load resistance value with reference to the load resistance value and an estimated resistance value, a temperature rise value of the wire electrode is estimated based on a specific resistance of the wire electrode and a temperature coefficient of the specific resistance, and a state of carrying a current to the wire electrode is controlled based on the temperature rise value. 1. A wire electrode annealing processing method for a wire electric discharge machining device that generates a discharge phenomenon between a workpiece and a wire electrode to perform machining on the workpiece , wherein the wire electric discharge machining device arranges a pair of annealing electrodes at predetermined two points on the wire electrode , respectively , carries a current to the wire electrode via the annealing electrodes , with a tension applied to the wire electrode , to heat the wire electrode , and corrects a bending tendency of the wire electrode between the two points , the wire electrode annealing processing method comprising:measuring values of a current and a voltage from a heating power supply device that heats the wire electrode by carrying a current to the wire electrode;calculating a load resistance value by dividing the voltage value by the measured current value;calculating a resistance increment of the wire electrode from an increased amount in a load resistance value with reference to a load resistance value right after starting heating the wire electrode and a resistance value of the wire electrode itself at a normal temperature;estimating a temperature rise value of the wire electrode based on a preset specific resistance ...

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Номер записи: 9
06-02-2014 дата публикации

FORMING OF METALLIC GLASS BY RAPID CAPACITOR DISCHARGE

Номер: US20140033787A1
Автор: Demetriou Marios D., Johnson William L., Kim Choong Paul, Schramm Joseph P.
Принадлежит: California Institute of Technology

An apparatus and method of uniformly heating, rheologically softening, and thermoplastically farming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time frame of less than 1 second. 118.-. (canceled)19. A rapid capacitor discharge apparatus comprising:a source of electrical energy electrically connected to at least one of;at least two electrodes, said electrodes electrically connecting said source of electrical energy to a sample of metallic glass formed from a metallic glass forming alloy when said sample is disposed between said electrodes, such that substantially uniform connections are formed between said electrodes and said sample of metallic glass;a shaping tool disposed in forming relation to said sample, said shaping tool configured to apply a deformational force sufficient to shape said sample when heated to an article; whereinwherein said source of electrical energy is configured to produce a quantum of electrical energy sufficient to substantially uniformly heat the entirety of said sample to a processing temperature between the glass transition temperature of the metallic glass and the equilibrium melting point of the metallic glass forming alloy;20. The apparatus of claim 19 , wherein the shaping tool is selected from the group consisting of an ...

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Номер записи: 10
06-01-2022 дата публикации

HORSESHOE NAIL AND METHOD FOR MANUFACTURING SUCH HORSESHOE NAIL

Номер: US20220000091A1
Автор: Kerckhaert Michiel Petrus M.
Принадлежит: Kerckhaert Hoefijzerfabriek B.V.

A horseshoe nail for nailing a horseshoe to a hoof. The horseshoe nail is made from steel with a carbon weight percentage between 0.18 and 0.25. The horseshoe nail contains a shank with a tip at one end and a widened head at the other end. The head is at least hardened over a part of its length from its free end. The shank is not hardened over its entire or almost entire length from the tip. 1. A horseshoe nail for nailing a horseshoe to a hoof , the horseshoe nail is made from steel with a carbon weight percentage between 0.18 and 0.25 , whereby the horseshoe nail contains a shank with a tip at one end and a widened head at the other end and whereby the head is at least hardened over a part of its length from its free end , whereas the shank is not hardened over its entire or almost entire length from the tip.2. The horseshoe nail according to claim 1 , wherein the horseshoe nail is made from steel with a carbon weight percentage of at least 0.18.3. The horseshoe nail according to claim 1 , wherein that only the head is hardened up to a length from 1.9 mm to 3.9 mm from its free end.4. The horseshoe nail according to claim 1 , wherein a hardened section of the head has a hardness HRC of 30 or more.5. The horseshoe nail according to claim 4 , wherein a cross-section of both the head and the shank of the horseshoe nail is rectangular claim 4 , whereby longest sides of both the cross-sections are parallel with each other.6. A combination of horseshoe and horseshoe nail claim 1 , whereby the horseshoe is provided with one or more grooves with one or more nail holes in a base whereby in a mounted condition of the horseshoe under a hoof claim 1 , the nail is partly sunken with its head in the groove with an end protruding from the groove claim 1 , wherein that the horseshoe nail is a horseshoe nail according to in which at least a protruding section of the head is hardened.7. The combination according to claim 6 , wherein that only the protruding section of the head is ...

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Номер записи: 11
05-01-2017 дата публикации

Plant and method for the production of metal

Номер: US20170002439A1
Автор: Gianpietro Benedetti, Paolo Bobig
Принадлежит: Danieli and C Officine Meccaniche SpA

Plant for the production of metal products comprising: a main rolling line configured to roll thin slabs; a main casting line of thin slabs associated downstream to a heating and/or maintenance furnace to heat and/or maintain the cast thin slabs at a uniform temperature, the main casting line being positioned upstream of and aligned with said main rolling line, the main rolling line being configured to roll the thin slabs arriving at least from the heating and/or maintenance furnace; an auxiliary rolling line provided with at least one rolling unit configured to roll conventional slabs and obtain thin slabs, and with a transfer unit positioned downstream of the rolling unit and configured to transfer the thin slabs rolled by the latter to the heating and/or maintenance furnace.

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Номер записи: 12
07-01-2021 дата публикации

MONOCRYSTALLINE METAL FOIL AND MANUFACTURING METHOD THEREFOR

Номер: US20210002736A1
Автор: JIN Sunghwan, RODNEY S. Ruoff
Принадлежит:

The present invention relates to a method for manufacturing a monocrystalline metal foil and a monocrystalline metal foil manufactured thereby, the method comprising the steps of: fixing each of the ends of polycrystalline metal foil to electrodes; and heat-treating the fixed polycrystalline metal foil to manufacture a monocrystalline metal foil. 1. A method for manufacturing a monocrystalline metal foil , the method comprising:a) a step of fixing each of the ends of a polycrystalline metal foil by electrodes, respectively; andb) a step of heat treating the fixed polycrystalline metal foil to manufacture a monocrystalline metal foil.2. The method of claim 1 , wherein the heat treatment is performed by resistive heating.3. The method of claim 1 , wherein the step a) further includes a step of keeping the polycrystalline metal foil straight by moving one or more electrodes which are fixing each of the ends of the polycrystalline metal foil claim 1 , respectively.4. The method of claim 1 , wherein the step b) is performed by including:i) a primary heat treatment step of increasing a temperature of the polycrystalline metal foil by applying a current to the electrode; andii) a secondary heat treatment step of performing annealing at a finally increased temperature for a predetermined time.5. The method of claim 4 , wherein the polycrystalline metal foil whose length is increased by thermal expansion during the heat treatment in the step b)is kept straight.6. The method of claim 4 , wherein claim 4 , in the step i) claim 4 , the polycrystalline metal foil whose length is increased is kept straight by moving one or more electrodes that are attached to the ends of the polycrystalline metal foil claim 4 , respectively.7. The method of claim 4 , wherein the step i) is performed so that the following Relational Expression 1 is satisfied claim 4 ,{'br': None, 'i': L', '−L', 'M', 'L', '−L, 'sub': 1', '0', 'Elo', '1', '0, '()×0.5≤≤()×1.5 \u2003\u2003Relational Expression 1'}{' ...

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Номер записи: 13
08-01-2015 дата публикации

Variable Hardening Depth In Track Link For A Ground-Engaging Track

Номер: US20150008730A1
Автор: Caroline Marie Brewer, Gregory J. Kaufmann, Kevin Lee Steiner, Mark Steven Diekevers, Temitope Olayemi Akinlua, Timothy Arthur Thorson
Принадлежит: Caterpillar Inc

A track link for a ground-engaging track includes an elongate link body having a lower hardness material forming a lower mounting surface for mounting a track shoe, and a sacrificial higher hardness material forming an upper rail surface for contacting rotatable track engaging elements. The lower hardness and higher hardness materials transition at a material interface within the elongate link body, and the material interface is longitudinally non-uniform, such that the sacrificial higher hardness material has a varying depth from the upper rail surface to retard scalloping.

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Номер записи: 14
14-01-2021 дата публикации

AUTOMATICALLY RESETTABLE SMOKING PARAPHERNALIA

Номер: US20210007392A1
Автор: Chen Yongkuan, Han Jingmei, Lei Ping, Li Zhiqiang, Miao Mingming, Shang Shanzhai, TANG Jianguo, Wang Chengya, Wang Ru, Yuan Dalin, ZENG XU, Zheng Xudong
Принадлежит: CHINA TOBACCO YUNNAN INDUSTRIAL CO., LTD

An automatically resettable smoking paraphernalia includes the following components: an outer upper shell, a smoking cup provided inside the outer upper shell, a pushing key, and a spring, etc., wherein the smoking cup, the spring, the outer upper shell can be detached and replaced as a whole, the smoking cup can stick out of the outer upper shell by a distance to extract and unload the cigarette, and then automatically reset. Besides, the smoking cup is hidden inside the upper outer shell, so as to prevent the exposed smoking cup with an excessively high temperature from burning users, meanwhile avoiding a risk of losing the smoking cup. 1. An automatically resettable smoking paraphernalia , comprising the following components:an outer upper shell, wherein the outer upper shell is cylindrical with openings at two ends, the opening at a first end of the outer upper shell is provided with an inner flange, a side wall of the outer upper shell is provided with a pushing key sliding groove;a smoking cup provided inside the outer upper shell, wherein an outer wall of the smoking cup is provided with an outward protruded annulus, a bottom of the smoking cup is provided with a heating element socket, the bottom of the smoking cup or a wall of the smoking cup is provided with an air inlet hole, the wall of the smoking cup is sleeved with a spring, and two ends of the spring abut between the inner flange and the outward protruded annulus; anda pushing key, wherein the pushing key comprises a pushing key annulus and a pushing key block, the pushing key annulus is engaged with the outward protruded annulus, and the pushing key block is provided inside the pushing key sliding groove.2. The automatically resettable smoking paraphernalia according to claim 1 , further comprising an outer lower shell claim 1 , wherein the outer lower shell is detachably connected to the outer upper shell claim 1 , a heating element is provided in the outer lower shell claim 1 , extending in a ...

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Номер записи: 15
08-01-2015 дата публикации

Bolt-like fastening element, in particular drilling screw, and connection established thereby

Номер: US20150010376A1
Автор: Marijo Zach
Принадлежит: SFS INTEC HOLDING AG

A bolt-like fastening element ( 30 ), which is preferably in the form of a drilling screw shaped by pressing and/or rolling, having a head portion (LK), which has a holding region (LH) and has a starting hardness, and also having an initial portion (LA), which adjoins the head portion (LK) by way of a transition region (LÜ) and is additionally inductively hardened. The fastening element ( 30 ) is produced by cold forming from a blank made of a carbon steel having a starting tensile strength of at least 800 N/mm2. The induction hardening of the fastening element extends only to the initial portion thereof, i.e. in the case of a drilling screw to the drill bit ( 24 ) and the first turns of the thread ( 36 ). After the induction hardening, the drilling screw substantially has the starting tensile strength and is ductile in the head portion (LK). In the initial portion (LA) as far as into the central axis ( 33 ), the drilling screw is fully hardened to a hardness which is at least twice the magnitude of the starting hardness in the head portion (LK). The notched-impact energy in the head portion (LK) of the bolt-like fastening element is at least three times that in the initial portion (LA).

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Номер записи: 16
14-01-2016 дата публикации

WIRE HEATING SYSTEM AND WIRE HEATING METHOD

Номер: US20160010175A1
Автор: HORINO Takashi, Ikuta Fumiaki
Принадлежит: NETUREN CO., LTD.

A wire heating system includes an induction heating apparatus having a power supply and an induction coil arranged to heat a wire rod by an induction heating using current supplied from the power supply, and a controller configured to control the current to be supplied to the induction coil based on a feeding speed of the wire rod. The induction heating apparatus has a heating section in which the wire rod is heated by the induction heating using the induction coil, and a soaking section located downstream of the heating section to homogenize the temperature distribution of the induction-heated wire rod. The controller is configured to control the current to be supplied to the induction coil such that a temperature of the wire rod at a downstream end of the soaking section becomes a target temperature. 1. A wire heating system comprising:an induction heating apparatus comprising a power supply and an induction coil arranged to heat a wire rod by an induction heating using current supplied from the power supply; anda controller configured to control the current to be supplied to the induction coil based on a feeding speed of the wire rod,wherein the induction heating apparatus has a heating section in which the wire rod is heated by the induction heating using the induction coil, and a soaking section disposed downstream of the heating section to homogenize the temperature distribution of the wire rod induction-heated by the induction coil such that the temperature of the wire rod at a downstream end of the soaking section becomes a target temperature, andwherein the controller is configured to control the current to be supplied to the induction coil such that the temperature of the wire rod at the downstream end of the soaking section becomes the target temperature.2. The wire heating system according to claim 1 , wherein the controller controls the current to be supplied to the induction coil so as to satisfy I=k×v claim 1 , wherein I is the current to be supplied ...

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Номер записи: 17
11-01-2018 дата публикации

CONCURRENT, ADJACENT HEAT TREATMENT AND COOLING IN METAL ANNEALING

Номер: US20180010223A1
Автор: Newton Gregory
Принадлежит:

The present invention is a system of concurrent, adjacent heat treatment and vigorous cooling in section-annealing of metal workpieces. The invention process is especially advantageous in induction heating for annealing of one section of a workpiece while maintaining relatively non-annealed properties in an adjacent section. 1. A heating and cooling process for a metal workpiece of substantially the same metal composition comprising simultaneously heating an upper heat treating zone to substantially above ambient temperature and cooling a lower cooling zone to substantially below ambient temperature so that a crystal structure of the metal of the upper heat treating zone is modified and a crystal structure of the lower cooling zone is less modified.2. The process of wherein a transition zone is formed between the upper heat treating zone and the lower cooling zone.3. The process of wherein the transition zone is relatively narrow compared to a height of the upper heat treating zone.4. The process of wherein the transition zone is relatively narrow compared to a height of the lower cooling zone.5. The process of wherein the transition zone is less than six inches of the workpiece.6. The process of wherein the transition zone is less than four inches of the workpiece.7. The process of wherein the transition zone is from one fourth inch to one inch of the workpiece.8. The process of wherein the metal workpiece comprises a metal or metals whose line slope of on a plot of thermal conductivity to temperature curve is equal to or less than that of pure aluminum.9. The process of wherein the metal workpiece comprises a metal or metals whose line slope of on a plot of thermal conductivity to temperature curve is equal to or greater than 0.004 watts/inch-degree F per degree F.10. The process of wherein the metal workpiece comprises aluminum or its alloys.11. The process of wherein the upper heat treating zone is heated to above 600 degrees F.12. The process of wherein the ...

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Номер записи: 18
15-01-2015 дата публикации

Heating method of honeycomb structure

Номер: US20150014292A1
Автор: KATSUMI Saiki, Takeshi Sakuma
Принадлежит: NGK Insulators Ltd

The heating method of honeycomb structure includes a heating step of supplying a power to a honeycomb structure body of a honeycomb structure including the tubular honeycomb structure body having porous partition walls to define and form a plurality of cells and a circumferential wall positioned at an outermost circumference, and heating by electricity conduction, and a catalyst loaded onto the partition walls of the honeycomb structure body, to heat the honeycomb structure body up to a target temperature, and in the heating step, there is provided, at least once, a supply power decrease section where the supply of the power to the honeycomb structure body is stopped or the power to be supplied to the honeycomb structure body is decreased before the lowest temperature in a heating region of the honeycomb structure body reaches the target temperature.

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Номер записи: 19
12-01-2017 дата публикации

HIGH FREQUENCY INDUCTION CONTINUOUS HEATING METHOD AND HIGH FREQUENCY INDUCTION CONTINUOUS HEATING APPARATUS

Номер: US20170013682A1
Автор: MIYASHITA Kouichi, Sakuma Toshiyuki, Suenaga Akira
Принадлежит:

A high frequency induction continuous heating method and a high frequency induction continuous heating apparatus are provided, and they can improve a working efficiency of a heating treatment and can also improve an uniformity of the heating treatment for an entirety of a work piece corresponding to multiple types of work pieces. In the high frequency induction continuous heating method in which a work piece (W) placed on a conveyance surface () of a conveyor () is conveyed, and the work piece (W) on the conveyance surface () is heated by high frequency induction heating coils () which are disposed at both ends of the conveyor () in a crosswise direction perpendicular to a conveyance direction (shown by an arrow (D) in the drawing), the work piece (W) is rotated around an axis which is extended so as to be perpendicular to the conveyance surface (), at a certain rotation angle (θ) in mid-flow of the conveyance of the work piece (W) to change an orientation of the work piece (W). The high frequency induction continuous heating apparatus () uses the above-described method. 1. A high frequency induction continuous heating apparatus comprising:a conveyance surface on which a work piece is placed;a conveyor configured to convey the work piece on the conveyance surface;high frequency induction heating coils disposed at both ends of the conveyor in a crosswise direction perpendicular to a conveyance direction, and configured to heat the work piece on the conveyance surface; anda work piece rotating mechanism configured so as to rotate the work piece around an axis which is extended so as to be perpendicular to the conveyance surface, at a certain rotation angle in mid-flow of conveyance of the work piece so that an orientation of the work piece is changed.2. The high frequency induction continuous heating apparatus according to claim 1 , whereinafter the work piece is rotated by the work piece rotating mechanism in a state in which the conveyance of the work piece has been ...

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Номер записи: 20
03-02-2022 дата публикации

HEAT TREATMENT APPARATUS FOR VEHICLE BODY COMPONENT

Номер: US20220033922A1
Автор: CHOI Hyeon-Cheol
Принадлежит:

An heat treatment apparatus for a vehicle body component includes, a jig base, a lower fixed die fixedly installed on the jig base and supporting the vehicle body component that is press-molded into a predetermined shape, a heating unit installed on the lower fixed die and locally heating the vehicle body component, a plurality of side movable dies that can move reciprocally disposed at both sides of the lower fixed die, installed on the jig base, and selectively combinable with the lower fixed die, a cooling unit installed on each side movable die and cooling a heating portion of the vehicle body component, and an upper movable die that can move reciprocally in the up and down direction correspondingly to the lower fixed die, and configured to clamp the vehicle body component through the lower fixed die and at least one of the side movable dies combined together. 1. A heat treatment apparatus for a vehicle body component , the heat treatment apparatus comprising:a jig base;a lower fixed die fixedly installed on the jig base and configured to support the vehicle body component;a heating unit installed on the lower fixed die and configured to locally heat the vehicle body component;a plurality of side movable dies disposed at both sides of the lower fixed die and installed on the jig base, wherein the plurality of side movable dies is configured to move reciprocally and is selectively assembled with the lower fixed die;a cooling unit installed on each side movable die of the plurality of side movable dies and configured to cool a heating portion of the vehicle body component; andan upper movable die configured to move reciprocally in an up and down direction correspondingly to the lower fixed die, and clamp the vehicle body component through the lower fixed die and at least one side movable die of the plurality of side movable die assembled together.2. The heat treatment apparatus of claim 1 , wherein the heating unit is configured to locally induction-heat a portion ...

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Номер записи: 21
03-02-2022 дата публикации

Heat treatment method

Номер: US20220033923A1
Автор: Etsunori Fujita, Katsuyoshi Kuwata, Seiya Yoshida
Принадлежит: Delta Kogyo Co Ltd

To reduce the roughening of a surface of a workpiece whose hardness is increased by heat treatment. In a workpiece such as a guide plate (11), not a surface (11a1) of a groove (11a) that is a desired part for hardening (hardening target position) but a surface (11a2) opposite the surface (11a1) is heat-treated as a surface to be heated that is to be directly heated by an induction heating device. This can inhibit the surface (11a1) of the hardening target position from being roughened by the heat treatment and becoming lower in surface precision than before the heat treatment. Further, according to the present invention, the use of the induction heating device makes it possible to heat-treat only a necessary part.

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Номер записи: 22
18-01-2018 дата публикации

HIGH-SPEED HOT FORMING AND DIRECT QUENCHING

Номер: US20180015522A1
Автор: Fazli Ali, Niaraki Rasoul Jelokhani, Soltanpour Mahdi
Принадлежит: Imam Khomeini International University

A high-speed hot forming and direct quenching method and apparatus are disclosed. A first step of the method can comprise various pre-processing steps that can prepare a workpiece for the apparatus. A second step involves a heat-treatment of the workpiece. A third step comprises hot forming the workpiece and primary quenching of the workpiece. A fourth step can comprise a secondary quenching of the workpiece. 1. A high-speed hot forming and direct quenching system configured to form a workpiece , the system comprising:a fluid chamber, wherein a series of hot forming and direct quenching processes occur inside the fluid chamber;a die located above the workpiece and at an adjustable distance from the workpiece, wherein the workpiece is configured to be positioned between the die and the fluid chamber, and the workpiece includes a first end and a second end that are in contact with the fluid chamber;a thermal insulator disposed along at least a portion of walls associated with the fluid chamber, wherein the thermal insulator includes a first end and a second end that are in contact with the fluid chamber, and the thermal insulator covers the first end and the second end of the workpiece;an electrical insulator located between the thermal insulator and the fluid chamber, wherein the electrical insulator is disposed along at least a portion of the walls associated with the fluid chamber, and the electrical insulator covers the first end and the second end of the thermal insulator;an, inert gas being injected below the workpiece into the fluid chamber;a fluid configured to flow into the fluid chamber and below the inert gasa first inlet, wherein the fluid flows into the fluid chamber through the first inlet, and the first inlet is located along a lower area of a first portion of the fluid chamber;a first outlet, wherein the fluid exits the fluid chamber through the first outlet, and the first outlet is located along an upper area of a second portion of the fluid chamber;a ...

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Номер записи: 23
09-01-2020 дата публикации

Heatable Textile Device

Номер: US20200015326A1
Автор: Gerster Martin
Принадлежит:

In a textile device () having a flexible textile main structure () which is made up of textile threads () and which has a top surface () and a bottom surface (), temperature metering independent of ambient conditions is achieved in that the main structure () is equipped with at least one electrically conductive heating thread () which is connected to a first voltage source and with at least one electrically conductive sensor thread () which is connected to a second voltage source and which serves for sensing a temperature or a dampness of the main structure (), wherein a control circuit which is electrically connected to at least one sensor thread () is provided for controlling the intensity of a current flow through the heating threads () in response to a measured temperature or dampness in order, for every measured actual value, to introduce a predetermined setpoint value of heat into the main structure (). 1100110101111112. A textile device () having a flexible textile main structure () which is made up of textile threads () and which has a top surface () and a bottom surface () , wherein:{'b': 110', '120', '130', '110, 'the main structure () is equipped with at least one electrically conductive heating thread () which is connected to a first voltage source and with at least one electrically conductive sensor thread () which is connected to a second voltage source and which serves for sensing a temperature or a dampness of the main structure (); and'}{'b': 130', '120, 'a control circuit which is electrically connected to the at least one sensor thread () is provided for controlling the intensity of a current flow through the at least one heating thread () in response to a measured temperature or dampness in order, for every measured actual value, to introduce a predetermined setpoint value of heat into the main structure.'}2100110130110130110. The textile device () of claim 1 , wherein the main structure () is equipped both with a sensor thread () for sensing a ...

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Номер записи: 24
19-01-2017 дата публикации

HIGH FORMABILITY DUAL PHASE STEEL

Номер: US20170016087A1
Автор: COMSTOCK ROBERT J., Paraskos George A.
Принадлежит:

To improve the formability of dual phase steels, the martensite phase is tempered. It may form a ferrite-carbide structure. The tempering step occurs after martensite has been formed in the dual phase steel. The tempering step can occur in a box annealing step or it can be performed in a continuous fashion, such as on a continuous annealing, continuous tempering heat treating, or continuous coating line. The tempering step can further comprise a temper rolling on a temper mill after the heating step. 1. A method of improving the formability of a dual phase steel strip comprising ferrite and martensite , the method comprising the step of temper heat treating the dual phase steel strip at a temperature and for a time sufficient to transform at least a portion of the martensite to ferrite and cementite.2. The method of further comprising the step of temper rolling the dual phase steel after the temper heat treating step.3. The method of wherein the temper heat treating step occurs after the strip has been cold rolled.4. The method of wherein the temper heat treating step occurs after the strip has been coated with a coating.5. The method of wherein the temper heat treating step is a box annealing step.6. The method of wherein the temper heat treating step is a continuous temper heating step.7. The method of wherein the continuous temper heating is provided by induction heating.8. A method of improving the formability of a dual phase steel having a nominal tensile strength of 780 MPa comprising the step of temper heat treating the dual phase steel strip at a temperature for a time such that yield x<110 micrometers.9. The method of wherein the yield x<90 micrometers.10. A method of improving the formability of a dual phase steel having a nominal tensile strength of 980 MPa comprising the step of temper heat treating the dual phase steel strip at a temperature for a time such that yield x<100 micrometers.11. The method of claim 10 , wherein the yield x<10 micrometers.12. ...

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Номер записи: 25
21-01-2021 дата публикации

Metal strip induction heating method and induction heating apparatus

Номер: US20210017624A1
Автор: Masato Taira, Shigeki Takahashi, Yoshiaki Hirota
Принадлежит: Nippon Steel Corp

An induction heating method for a metal strip is provided to heat a continuously conveyed metal strip using an induction heating device disposed at a first position on a pass line. The induction heating method includes a step of detecting a displacement from a predetermined datum line of a width direction center line of the metal strip at a second position on the pass line that is different from the first position, a step of computing an estimated displacement of the width direction center line of the metal strip at the first position by temporal and spatial extrapolation of the displacement based on a function expressing a time series of changes in the displacement, and a step of controlling a relative positional relationship between the induction heating device and the metal strip in a width direction of the metal strip based on the estimated displacement.

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Номер записи: 26
19-01-2017 дата публикации

ELECTRICAL HEATING DEVICE AND ELECTRICAL HEATING METHOD

Номер: US20170019953A1
Автор: HASEBE Asahiko, KIMURA Maho, Morita Kenichi, NAKAMURA Hisanori, SAKUI Takashi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An electrical heating device includes supplemental heating means for supplementarily heating each of areas defined in advance in the material to be heated, and control means. A supplemental heating quantity for each of the areas is obtained by calculating a necessary heating quantity for heating each of the areas to a predefined target temperature and an electrical heating quantity generated in each of the areas by the electrical heating based on cross-sectional area information on the material to be heated and temperature information on the material to be heated and subtracting the calculated electrical heating quantity from the calculated necessary heating quantity. The control means controls, in addition to the control of an electrical heating, the supplemental heating means so that each of the areas is supplementarily heated based on the obtained supplemental heating quantity for each of the areas. 1. An electrical heating device that electrically heats a material to be heated by bringing a plurality of electrodes into contact with the material to be heated with a predetermined distance between the electrodes and supplying an electric current flowing between the electrodes , comprising:supplemental heating means for supplementarily heating each of a plurality of areas defined in advance in the material to be heated; andcontrol means for controlling the electrical heating and the supplemental heating for the material to be heated, whereina supplemental heating quantity for each of the plurality of areas is obtained by calculating a necessary heating quantity for heating each of the plurality of areas to a predefined target temperature and an electrical heating quantity generated in each of the plurality of areas by the electrical heating based on cross-sectional area information on the material to be heated and temperature information on the material to be heated and subtracting the calculated electrical heating quantity from the calculated necessary heating ...

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Номер записи: 27
10-02-2022 дата публикации

STUD-WELDABLE REBAR

Номер: US20220042127A1
Автор: Ray Samuel T., WHITE Timothy A., Workman Peter A.
Принадлежит: TFP Corporation

A stud-weldable rebar and a method for making the rebar are disclosed. The rebar has a steel body with a weld end and a diameter that is substantially uniform along a length of the body. A tip portion at the weld end includes a hardened zone and a base portion is formed of the remaining steel body. The hardened zone has a hardness that is about 1.5-3.0 times greater than a hardness of the base portion. Induction hardening is used to form the hardened zone. 112-. (canceled)13. A method of forming a stud-weldable rebar comprising:providing a steel body with a weld end and a diameter that is substantially uniform along a length of the body;heating a portion of the weld end for about 4-9 seconds until the portion of the weld end reaches a target temperature of about 1,300-1,700° F.;allowing the heated portion of the weld end to rest for a dwell time of about 2 seconds; and,cooling the heated portion of the weld end by quenching in a cooling medium for about 5-12 seconds,wherein a hardness of the weld end portion is increased by about 1.5-3 times a hardness of a remaining portion of the steel body.14. The method of claim 13 , wherein the hardness of the hardened weld end portion is about 20-50 HRC.15. The method of claim 13 , wherein the length of the hardened weld end portion is about 40% the diameter of the steel body.16. The method of claim 13 , further comprising providing a steel body having a chemical composition of 0.08-0.23 wt % of carbon claim 13 , 0.95-1.2 wt % of manganese claim 13 , less than 0.04 wt % of phosphorous claim 13 , less than 0.05 wt % of sulfur claim 13 , 0.2-0.4 wt % of silicon claim 13 , less than 0.25 wt % of copper claim 13 , less than 0.15 wt % of nickel claim 13 , less than 0.15 wt % of chromium claim 13 , 0.001-0.05 wt % of molybdenum claim 13 , 0.001-0.02 wt % of aluminum claim 13 , 0.03-0.08 wt % vanadium claim 13 , less than 0.0005 wt % of boron claim 13 , and less than 0.02 wt % of nitrogen.17. The method of claim 13 , further ...

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Номер записи: 28
28-01-2021 дата публикации

TRACK LINK FOR A TRACK JOINT ASSEMBLY HAVING WEAR BAND WITH LENGTHWISE-VARIED HARDNESS AND METHOD OF MAKING SAME.

Номер: US20210024149A1
Автор: Steiner Kevin
Принадлежит: CATERPILLAR INC.

A track link for a ground-engaging track system includes an elongate link body having an upper rail surface located in part upon each of a first link strap, a second link strap, and a middle section of the track link. The upper rail surface is formed by a wear band of sacrificial wear material having a hardness that is varied lengthwise along the upper rail surface to retard scalloping of the track link during service and forming relatively softer zones in the first and second link straps and a relatively harder zone within the middle section. Methodology for making such a track link is also disclosed. 1. A method of making a track link comprising:heat treating an elongate link body having a first link strap, a second link strap, a middle section, and an upper rail surface, such that a material extending throughout the elongate link body is hardened to form a harder material;tempering the elongate link body such that a portion of the harder material that forms the upper rail surface is softened to form a softer material;forming, by way of the heat treating of the elongate link body and the tempering of the elongate link body, a scallop-retarding pattern of material hardness that is varied lengthwise along the upper rail surface; andthe scallop-retarding pattern of material hardness forming relatively softer zones of the softer material in each of the first link strap and the second link strap, a relatively harder zone of the harder material in the middle section, and a wear band of the harder material extending lengthwise between an outer end of the first link strap and an outer end of the second link strap and depthwise between each of the relatively softer zones and a first bore in the first link strap and a second bore in the second link strap, respectively.2. The method of wherein the forming of a scallop-retarding pattern of material hardness further includes forming the relatively harder zone such that the relatively harder zone is continuous and extends into ...

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Номер записи: 29
29-01-2015 дата публикации

HEATING COIL, HEAT TREATMENT APPARATUS, AND HEAT TREATMENT METHOD FOR ELONGATED WORKPIECE

Номер: US20150028023A1
Автор: Sugiyama Yutaka, Tanaka Yoshimasa
Принадлежит:

A heating coil of a heat treatment apparatus is configured to inductively heat an elongated workpiece having a recessed lateral surface. The heating coil includes a base conductor and a projected conductor. A width of the projected conductor is narrower than a width of the base conductor. The projected conductor is arranged to project toward the recess from a position of the base conductor. The base conductor and the projected conductor are arranged to extend in a longitudinal direction of the workpiece. A heat treatment apparatus includes a cooling section and the heating coil. A heat treatment method uses the heating coil described above. 1. A heating coil configured to inductively heat an elongated workpiece , the workpiece having a first lateral surface and a second lateral surface adjoining each other along a corner portion , wherein the first lateral surface has a recess at a location spaced away from the corner portion , and the first lateral surface , the second lateral surface and the recess extend continuously in a longitudinal direction of the workpiece , the heating coil comprising:a base conductor configured to face the first lateral surface; anda projected conductor configured to face the recess,wherein a width of the projected conductor is narrower than a width of the base conductor,the projected conductor is arranged to project toward the recess from a position of the base conductor, andthe base conductor and the projected conductor are arranged to extend in the longitudinal direction.2. The heating coil according to claim 1 , wherein the base conductor is arranged to overlap the projected conductor.3. The heating coil according to claim 1 , wherein the projected conductor is longer than the base conductor in the longitudinal direction.4. The heating coil according to claim 1 , wherein at least a portion of the projected conductor is arranged to project from the base conductor in the longitudinal direction.5. The heating coil according to claim 1 , ...

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Номер записи: 30
23-01-2020 дата публикации

BLACKBODY RADIATION SOURCE

Номер: US20200025622A1
Автор: FAN SHOU-SHAN, WANG GUANG, WEI YANG
Принадлежит:

The present invention relates to a blackbody radiation source. The blackbody radiation source comprises a blackbody radiation cavity and a plurality of carbon nanotubes. The blackbody radiation cavity comprises an inner surface. The plurality of carbon nanotubes are located on the inner surface. An extending direction of each of the carbon nanotubes is substantially perpendicular. 1. A blackbody radiation source comprising:a blackbody radiation cavity comprising an inner surface;a plurality of carbon nanotubes on the inner surface of the blackbody radiation cavity, wherein an extending direction of each of the carbon nanotubes is substantially perpendicular to the inner surface of the blackbody radiation cavity.2. The blackbody radiation source of claim 1 , wherein each of the carbon nanotubes comprises an open end claim 1 , and the open end is away from the inner surface.3. The blackbody radiation source of claim 1 , wherein the inner surface of the blackbody radiation cavity is partially covered by the plurality of carbon nanotubes.4. The blackbody radiation source of claim 3 , wherein the inner surface of the blackbody cavity which is not covered by the plurality of carbon nanotubes is covered by a black coating.5. The blackbody radiation source of claim 4 , wherein a ratio between a surface area of the inner surface covered by the plurality of carbon nanotubes to the surface area of the inner surface covered by the black coating ranges from 1:9 to 9:1.6. The blackbody radiation source of claim 4 , wherein the black coating is a black lacquer claim 4 , a black lacquer mixed with carbon nanotubes claim 4 , or a carbon nanotube layer structure.7. The blackbody radiation source of claim 6 , wherein a weight percentage of the carbon nanotubes in the black lacquer mixed with carbon nanotubes is in a range from 1% to 50%.8. The blackbody radiation source of claim 6 , wherein the carbon nanotube layer structure comprises a plurality of carbon nanotubes extending along a ...

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Номер записи: 31
23-01-2020 дата публикации

BLACKBODY RADIATION SOURCE

Номер: US20200025623A1
Автор: FAN SHOU-SHAN, WANG GUANG, WEI YANG
Принадлежит:

The present invention relates to a blackbody radiation source. The blackbody radiation source comprises a blackbody radiation cavity and a plurality of carbon nanotubes. The blackbody radiation cavity comprises an inner surface. A carbon nanotube array located on the inner surface of the blackbody radiation cavity. The carbon nanotube array comprises a plurality of carbon nanotubes, and an extending direction of each carbon nanotube is substantially perpendicular to the inner surface. The carbon nanotube array comprises a first surface and a second surface. The first surface is in contact with the inner surface and the second surface is far away from the inner surface. The plurality of carbon nanotubes extend from the first surface to the second surface. A plurality of microstructures are formed on the second surface of the carbon nanotube array. 1. A blackbody radiation source comprising:a blackbody radiation cavity comprising an inner surface; anda carbon nanotube array on the inner surface of the blackbody radiation cavity;wherein the carbon nanotube array comprises a plurality of carbon nanotubes, an extending direction of each of the carbon nanotubes is substantially perpendicular to the inner surface, the carbon nanotube array comprises a first surface and a second surface, the first surface is in contact with the inner surface and the second surface is far away from the inner surface, the plurality of carbon nanotubes extend from the first surface to the second surface, and a plurality of microstructures are formed on the second surface of the carbon nanotube array.2. The blackbody radiation source of claim 1 , wherein a plurality of micro-grooves are formed on the second surface of the plurality of carbon nanotubes.3. The blackbody radiation source of claim 2 , wherein each of the plurality of micro-grooves is an annular micro-groove claim 2 , a strip micro-groove claim 2 , a dot-shaped micro-groove or a spiral micro-groove extending spirally along a axial ...

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Номер записи: 32
10-02-2022 дата публикации

Concrete Heating System

Номер: US20220046764A1
Автор: Brown Michael E.
Принадлежит:

A concrete heating system for electrically melting snow and ice. The concrete heating system generally includes a heating device for embedding in conductive concrete, the device having a spacing member and a plurality of electrically isolated conductors extending outward at an angle from the spacing member along its length. The device also includes a first electrode near the first end of the spacing member, and a second electrode extending outward from the spacing member at the second end. The plurality of conductors conduct an electrical current between the first electrode and the second electrode when the concrete heating device is embedded in conductive concrete and the power source applies a voltage between the first electrode and the second electrode. 1. A concrete heating device , comprising:a first spacing member comprising a first end and a second end;a first electrode extending from the first spacing member, wherein the first electrode is adapted for connection to a power source;a second electrode extending from the first spacing member, wherein the second electrode is adapted for connection to the power source; anda plurality of conductors extending from the first spacing member, wherein the plurality of conductors are spaced apart from each other;wherein the second electrode is spaced apart from the first electrode and the plurality of conductors such that the plurality of conductors are positioned between the first electrode and the second electrode;wherein the plurality of conductors are not conductively coupled to the first electrode, the second electrode or each other; andwherein the plurality of conductors conduct an electrical current between the first electrode and the second electrode when the concrete heating device is embedded in conductive concrete and the power source applies a voltage between the first electrode and the second electrode.2. The concrete heating device of claim 1 , further comprising a second spacing member spaced apart from ...

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Номер записи: 33
01-02-2018 дата публикации

Heating method, heating apparatus and method for manufacturing press-molded article

Номер: US20180029103A1
Автор: Fumiaki Ikuta, Hironori Ooyama
Принадлежит: Neturen Co Ltd

A heating method, a heating apparatus, and a method for manufacturing a press-molded article using the heating method are provided. Electrodes are placed on a workplace to extend across a heating target region in a first direction. At least one of the electrodes is moved in a second direction perpendicular to the first direction over the heating target region while applying electric current to the electrodes. A distribution of contact pressure between at least one of the electrodes and the workpiece along the first direction is adjusted, with a plurality of segment regions being defined by dividing the heating target region such that the segment regions are arranged side by side in the first direction, and in accordance with a length of each of the segment regions between the electrodes, to adjust a healing temperature of each of the segment regions of the heating target region.

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Номер записи: 34
02-02-2017 дата публикации

Workpiece for induction hardening

Номер: US20170029910A1
Автор: Yutaka Kiyosawa
Принадлежит: Neturen Co Ltd

A workpiece for an induction hardening is provided. The workpiece has a first inclined surface, a second inclined surface, and a connecting surface connecting the first inclined surface and the second inclined surface on a side toward which the first inclined surface and the second inclined surface approach each other. The connecting surface has a recessed portion. A hardened layer formed at the first inclined surface and another hardened layer formed at the second inclined surface do not overlap each other at the recessed portion.

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Номер записи: 35
31-01-2019 дата публикации

HEATING METHOD, HEATING APPARATUS, AND HOT PRESS MOLDING METHOD FOR PLATE WORKPIECE

Номер: US20190030584A1
Автор: Ikuta Fumiaki, Ooyama Hironori
Принадлежит:

A heating method, a heating apparatus, and a hot press holding method for a plate workpiece are provided. The plate workpiece has a first region and a second region. A cross sectional area of the first region in a widthwise direction of the plate workpiece is substantially uniform along a longitudinal direction of the plate workpiece or is monotonically increased or decreased along the longitudinal direction. The second region is adjoining a portion of the first region in a monolithic manner. The method includes heating the second region, and heating at least the first region by direct resistance heating along the longitudinal direction. The second region is heated before heating the first region such that the first region and the second region are heated to be in a given temperature range. 1. An apparatus for heating a plate workpiece , the plate workpiece having a first region and a second region , wherein a width of the first region is substantially uniform along a longitudinal direction of the plate workpiece or is monotonically increased or decreased along the longitudinal direction , and wherein the second region is adjoining a portion of the first region in a widthwise direction or the longitudinal direction of the plate workpiece in a monolithic manner , the apparatus comprising:a first heating section configured to heat at least the first region; anda second heating section configured to heat the second region,wherein the first heating section comprises a pair of electrodes arranged in the widthwise direction such that the pair of electrodes contacts a surface of the plate workpiece to apply electric current to the plate workpiece.2. The apparatus according to claim 1 , wherein the second region is adjoining the portion of the first region in the widthwise direction claim 1 , and wherein the first heating section further comprises a drive unit configured to move at least one of the electrodes in the longitudinal direction in accordance with a variation in a ...

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Номер записи: 36
17-02-2022 дата публикации

METHOD FOR MANUFACTURING STEEL SHEET FOR COLD PRESS AND METHOD FOR MANUFACTURING PRESS COMPONENT

Номер: US20220049324A1
Автор: Matsuki Yuichi, Nakagawa Kinya, Shinmiya Toyohisa
Принадлежит: JFE STEEL CORPORATION

A method that improves stretch flange formability of a steel sheet by individual treatment matching a material of the steel sheet without performing heat treatment in a die. This method is a method for manufacturing a steel sheet for cold press, and the steel sheet is manufactured by heating an edge of the steel sheet to a temperature within a heating temperature range preset according to a microstructure of the steel sheet and cooling the steel sheet. A region, within an edge of the steel sheet subjected to shearing in a shearing step, where it is estimated that a stretch flange crack is likely to occur when a press component is formed by cold pressing is determined, and a site to be heated and cooled is set within the region. By press-forming the manufactured steel sheet, a target press component is manufactured. 1. A method for manufacturing a steel sheet for cold press , the method being a method for manufacturing a steel sheet for cold press subjected to cold pressing and comprising:a shearing step of subjecting at least a portion of an edge of the steel sheet to shearing;an analysis step of determining, within the edge of the steel sheet subjected to shearing in the shearing step, a region where it is estimated that a stretch flange crack is likely to occur when the steel sheet is formed by cold pressing; anda heating and cooling step of heating, within the edge of the steel sheet, a site included in the region determined in the analysis step to a temperature within a heating temperature range preset according to a microstructural composition of the steel sheet and cooling the site, whereinwhen, as the steel sheet, a steel sheet the principal microstructure of which is composed of a single phase of martensite is used, the method sets the heating temperature range to a heating temperature range of 500° C. or more and 700° C. or less,when, as the steel sheet, one of a steel sheet the principal microstructure of which is composed of a composite microstructure of ...

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Номер записи: 37
05-02-2015 дата публикации

Induction hardening control system

Номер: US20150034628A1
Автор: Fumiaki Ikuta, Keisuke Ito, Ken-Ichi Hoshiba, Taichi Kitamura, Tetsuya Ono, Yue Yang
Принадлежит: Neturen Co Ltd

The present invention includes: a hardening control unit ( 70 ) for controlling an induction hardening apparatus ( 10, 10 A) based on setup conditions data regarding the induction hardening apparatus ( 10, 10 A); a hardening monitoring unit ( 20 ) that measures, as measurement data, the electric quantity in an electric circuit configured to include a high-frequency inverter ( 11 ), a capacitor ( 12 ), and a heating coil ( 14, 14 A, 14 B) and that monitors an induction hardening status; and a data collecting unit ( 80 ) that collects the data from various sensors in the induction hardening apparatus ( 10, 10 A, 10 B) obtained when the induction hardening apparatus ( 10 ) subjects the work ( 15, 15 A, 15 B) to an induction hardening based on the setup conditions data outputted from the hardening control unit ( 70 ) and that collects the measurement data from the hardening monitoring unit ( 20 ) to store the collected data from the various sensors and the measurement data so that the collected data from the various sensors and the measurement data are associated to each other.

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Номер записи: 38
04-02-2021 дата публикации

ADJUSTABLE SPACER WITH HARDENED ENDS

Номер: US20210033144A1
Автор: Rode John E.
Принадлежит: TEMPER CORPORATION

An adjustable spacer with a non-hardened intermediate portion therebetween is mountable between a pair of roller bearings also mounted on a shaft such an axle or spindle or the like. The intermediate portion allows the spacer to collapse in the axial direction to maintain desired axial loads on the bearings. 1. An adjustable spacer comprising:an annular spacer comprising a first end portion comprising a first material, and a second end portion opposite said first end portion; andan intermediate portion of said annular spacer located between said first end portion and said second end portion, said intermediate portion comprising a second material of lesser hardness than the first material and more deformable than that first material.2. The spacer of wherein the second material is similar to the first material.3. The spacer of wherein the second material is different than the first material.4. The spacer of wherein the second end portion comprises a material which is harder than the second material.5. The spacer of wherein the first end portion and second end portion comprise the first material.6. The spacer of wherein said first end portion and second end portion are formed separately from said first end portion or second end portion to be assembled together.7. The spacer of wherein the intermediate portion is formed separately from said first end portion and second end portion.8. An assembly comprising:a shaft;an annular spacer mounted on said shaft, said annular spacer comprising a first end portion comprising a first material and a second opposite end portion; andan intermediate portion of said annular spacer, located between said first end portion and said second end portion, said intermediate portion comprising a second material of lesser hardness than the first material and more deformable than the first material.9. The assembly of wherein the second material is different than the first material.10. The assembly of wherein the second end portion comprises a ...

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Номер записи: 39
07-02-2019 дата публикации

Device for Producing Hardened Steel Components and Hardening Method

Номер: US20190039109A1
Автор: HASLMAYR MICHAEL, KELSCH Reiner, Sommer Andreas, STEGFELLNER Leopold, TUTEWOHL BENEDIKT
Принадлежит:

The invention relates to an apparatus for heating sheet steel blanks, in particular for shaping and hardening in a press hardening process, wherein there is a heating device, and the heating device includes at least one heating module; the at least one heating module has a boxlike element embodied in cassette-like fashion, which has a plate-shaped or rectangular cavity that has a flat plate on an underside; at least one heating element is positioned in the cavity, which element is embodied as an electrical resistance heating element, and the cavity is completely filled in an embedding fashion so that it is completely enclosed by a highly heat-conductive material, preferably copper, and relates to a method therefor. 114141124382242256. An apparatus for heating sheet steel blanks comprising a heating device () and the heating device () comprises at least one heating module (); the at least one heating module () having a boxlike element embodied in cassette-like fashion , which has a plate-shaped or rectangular cavity () that has a flat plate () on an underside (); at least one heating element () is positioned in the cavity () , which element is embodied as an electrical resistance heating element; the cavity () is completely filled in embedding fashion so that it is completely enclosed by a highly heat-conductive material , preferably copper; and the plates () surrounding the cavity () or copper-filled cavity () , the side walls () , and the ceiling wall () are embodied of heat-resistant or highly heatproof stainless steel and are joined to one another in such a way that the core of highly heat-conductive material , in particular copper core , is hermetically sealed off.2191. The apparatus according to claim 1 , characterized in that the heating module () additionally includes cooling lines () for cooling the module ().31418189. The apparatus according to claim 1 , characterized in that the heating device () has heating modules () with heating elements () and/or ...

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Номер записи: 40
19-02-2015 дата публикации

METHOD FOR PRODUCING A COMPONENT FROM STEEL BY HOT FORMING

Номер: US20150047753A1
Автор: Braun Michael, Evertz Thomas, Luther Friedrich, Muetze Stefan
Принадлежит:

The invention relates to a method for producing a component from transformable steel by hot forming, in which a plate first is cut out of a strip or sheet as the pre-material, and is then heated to forming temperature and pre-formed, having an at least partially martensitic transformation structure after forming. Instead of a press mould hardening, the at least partially martensitic transformation structure is created in the pre-material, or in the plate to be formed, by austenitisation and quenching already before forming, and then the thus-conditioned plate is reheated after forming, while maintaining the at least partially martensitic transformation structure, to a temperature below the Ac1 transformation temperature, and formed at this temperature. 117-. (canceled)18. A method for the production of a component from malleable steel , comprising:cutting to size a blank as source material from a strip or metal sheet;austenitizing and quenching the blank to produce an at least partly martensitic transformation microstructure;{'sub': '1', 'heating the blank to a forming temperature below the Actransformation temperature, while maintaining the at least partly martensitic transformation microstructure; and'}{'sub': '1', 'forming the blank at the forming temperature below the Actransformation temperature.'}19. The method of claim 18 , further comprising coating the blank with a metallic coating.20. The method of claim 18 , wherein austenitizing and quenching includes heating the blank to an austenitizing temperature within a continuous or discontinuous annealing process claim 18 , and subsequently quenching the blank.21. The method of claim 20 , wherein the continuous annealing process is a run-through annealing process.22. The method of claim 21 , further comprising applying a coating on the blank by a hot dip process after the run-through annealing process.23. The method of claim 18 , further comprising tempering the blank after undergoing quenching.24. The method of ...

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Номер записи: 41
19-02-2015 дата публикации

ELECTRICAL HEATING-JOINING DEVICE AND METHOD

Номер: US20150047779A1
Автор: Kuriyama Osamu, Mizuno Yoshinobu
Принадлежит:

An electrical heating bonding device bonds a member M to be bonded, which is made of a metal, and a member M to be bonded, which is made of a resin. The electrical heating bonding device includes: an upper electrode and a lower electrode which sandwich the member M to be bonded, and are electrically conductive with the member M to be bonded; a pressurizing unit which applies pressure to a bonding surface between the member M to be bonded and the member M to be bonded; a temperature sensor which detects a temperature of the member M to be bonded; and a control unit which controls the pressurizing unit to apply the pressure to the bonding surface, after the temperature detected by the temperature sensor reaches a predetermined set temperature Ts. 1. An electrical heating bonding device which bonds a first member to be bonded and a second member to be bonded , the first member to be bonded being made of a metal , and the second member to be bonded being made of a resin , the electrical heating bonding device comprising:a plurality of electrodes which sandwich the first member to be bonded, and are electrically conductive with the first member to be bonded;a pressurizing unit which applies pressure to a bonding surface between the first member to be bonded and the second member to be bonded;a temperature sensor which detects a temperature of the first member to be bonded; anda control unit which controls the pressurizing unit to apply the pressure to the bonding surface, after the temperature detected by the temperature sensor reaches a predetermined temperature.2. The electrical heating bonding device according to claim 1 , comprisinga power supply which supplies a current to the electrodes,wherein the power supply is in operation in a case where the temperature detected by the temperature sensor is lower than or equal to the predetermined temperature, and is stopped in a case where the temperature detected by the temperature sensor exceeds the predetermined ...

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Номер записи: 42
16-02-2017 дата публикации

Method and System for Enhancing Rivetability

Номер: US20170044637A1
Автор: Campbell Aindrea McKelvey, CHIRIAC Constantin, Huff Garret Sankey, Sohmshetty Raj
Принадлежит:

A joined sheet stack and a method and system for forming the stack are disclosed. The stack may include a steel sheet and a second sheet. The steel sheet may include a bulk portion having a first tensile strength and one or more fastener regions having a second tensile strength that is lower than the first tensile strength and a microstructure that includes tempered martensite. A fastener may extend through each fastener region joining the steel sheet to the second sheet. The method may include heat treating one or more regions of a steel sheet to form one or more fastener regions having a tensile strength that is lower than a bulk tensile strength of the steel sheet and a microstructure that includes tempered martensite. A fastener may then be inserted into the one or more fastener regions to join the steel sheet to a second sheet. 1. A sheet metal stack comprising: a bulk portion having a first tensile strength; and', 'one or more fastener regions having a second tensile strength that is lower than the first tensile strength and a microstructure that includes tempered martensite;, 'a steel sheet includinga second sheet; anda fastener extending through each fastener region joining the steel sheet to the second sheet.2. The stack of claim 1 , wherein the bulk portion has a microstructure that includes 100% martensite and the first tensile strength is at least 1200 MPa.3. The stack of claim 1 , wherein the second sheet is an aluminum sheet that is formed of a 5XXX claim 1 , 6XXX claim 1 , or 7XXX series aluminum alloy.4. The stack of claim 1 , wherein the second tensile strength of the fastener regions is less than 750 MPa.5. The stack of claim 1 , further comprising one or more additional sheets.6. The stack of claim 1 , wherein the fastener regions have a width of 1 to 25 mm.7. The stack of claim 1 , wherein the fastener is a self-piercing rivet.8. The stack of claim 1 , wherein the second sheet has a substantially uniform tensile strength throughout.9. A method of ...

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Номер записи: 43
15-02-2018 дата публикации

TOOLING FOR STRESS RELIEVING A TURBINE WHEEL AND SHAFT

Номер: US20180044756A1
Автор: BARBONE Maurizio, Prior Angelo
Принадлежит: HONEYWELL INTERNATIONAL INC.

A tool system for stress relieving a turbocharger turbine wheel longitudinally welded to a hardened rotor shaft. The shaft has a journal bearing region and a turbine-end body forming an A datum surface for receiving an axial bearing. The tool system includes an induction coil and an electronic oscillator, and a tool. The tool forms an opening configured to receive the rotor shaft such that the journal bearing region of the shaft extends into the tool housing while the A datum surface adjoins an end of the tool housing. The induction coil is positioned around the turbine-end body. The housing forms an annular cooling chamber surrounding the journal bearing region of the shaft. The housing forms an inlet passage to provide cooling fluid to the annular chamber, and an outlet passage to remove cooling fluid from the annular chamber. 1. A tool system for stress relieving a turbocharger turbine wheel longitudinally welded to an end region of a hardened rotor shaft , the shaft having a journal bearing region of the shaft for receiving at least one radial journal bearing , and the shaft having a turbine-end body forming an A datum surface for receiving an axial bearing , comprising:an electromagnetic induction coil;an electronic oscillator electronically attached to the induction coil, and being adapted to drive the induction coil with alternating current to create an alternating electromagnetic field; anda tool, including a tool housing;wherein the tool forms an opening sized to receive the rotor shaft such that the journal bearing region of the shaft extends into the tool housing while the A datum surface adjoins an end of the tool housing;wherein the induction coil is sized to be positioned around the turbine-end body such that an electromagnetic field from the induction coil surrounds the turbine-end body of the hardened rotor shaft;wherein, with the rotor shaft received in the opening of the tool, the housing forms an annular cooling chamber surrounding the journal ...

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Номер записи: 44
08-05-2014 дата публикации

ENERGIZATION HEATING DEVICE AND METHOD

Номер: US20140123722A1
Автор: Ishii Shinji, Nojiri Isao
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An electrically heating device is provided with a pair of clamp units serving as electrodes for energization and applying tension to a workpiece to be heated clamped between the clamp units by moving the clamp units in the direction in which the clamp units separate from each other during energization heating. The clamp units each include a facing surface inclined with respect to the moving direction of the clamp units and form, by the facing surface, a preform including an inclined surface inclined with respect to the plane direction of the workpiece in a clamping portion clamped between the clamp units in the workpiece. 1. A device for electrically heating comprising a pair of clamping units serving as energizing electrodes , wherein the pair of clamping units move in a separating direction from each other during the electrical heating so as to apply a tension to a workpiece to be heated clamped by the pair of clamping units , whereineach of the clamping units comprises a facing surface inclined with respect to a moving direction of the clamping unit, andthe facing surface forms a preform including a surface inclined to a plane direction of the workpiece at a clamping portion of the workpiece where the clamping unit clamps.2. The device according to claim 1 , whereinthe clamping unit comprises: an electrode including the facing surface and being movable in approaching and separating directions from the workpiece; and a fixed table and a movable table on which the workpiece is mounted, and both of which face the electrode through the workpiece,the electrode comprises a step portion protruding downward from a bottom thereof, the step portion including the facing surface at a wall thereof,the movable table is movable following the electrode, and when the electrode moves in the approaching direction, the movable table moves relatively to the fixed table, whereby a step is formed therebetween, andwhen the clamping unit clamps the workpiece, the step portion of the ...

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Номер записи: 45
14-02-2019 дата публикации

APPARATUS FOR LASER MATERIALS PROCESSING

Номер: US20190047085A1
Автор: LIEBL Christian, SCHLOTHAUER Steffen
Принадлежит:

An apparatus for laser materials processing including a laser () for generating a laser beam and a laser head () which is movable along at least one spatial direction and is connected to the laser via a light guide, and which emits a laser beam () capable of processing a material. The present invention also relates to an apparatus for selective laser melting or selective laser sintering having an apparatus for laser materials processing. 1. A method for operating an apparatus for laser materials processing , the apparatus including a laser for generating a laser beam; and a laser head movable along at least one spatial direction and connected to the laser via a light guide , the laser head emitting a laser beam capable of processing a material , wherein the laser head includes a suction device , the method comprising:processing the material using the laser beam, the processing creating gas fumes; anddrawing the gas fumes away using the suction device.2. The method as recited in wherein the processing includes moving the laser head translationally along at least two independent spatial directions.3. The method as recited in wherein the laser head is translationally moved within or along a plane.4. The method as recited in wherein the laser is a fiber laser.5. The method as recited in wherein the suction device creates a suction flow parallel to the direction of the laser beam.6. The method as recited in wherein the suction device creates a suction flow offset from the laser beam.7. The method as recited in wherein the suction flow is concentric with the laser beam.8. The method as recited in wherein the apparatus further includes a temperature conditioning device.9. The method as recited in wherein the temperature conditioning device includes a heater.10. The method as recited in wherein the heater includes an induction coil.11. The method as recited in wherein the induction coil is disposed around the laser beam.12. The method as recited in wherein the induction ...

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Номер записи: 46
26-02-2015 дата публикации

TEMPERATURE-CONTROL STATION WITH HEATING BY INDUCTION

Номер: US20150053670A1
Автор: Horn Stefan, Käsewieter Karoline, WERNEKE Simon
Принадлежит:

A temperature-control station of a thermoforming assembly for hot forming and press hardening a metallic structure includes a heat source in the form of at least one flat inductor which is provided on a lower tool and/or upper tool. A temperature-control plate is placed upon the inductor for support of the structure. The temperature-control plate is configured to accommodate at least one cooling channel for passage of a gaseous coolant so that two zones of the structure are adjustable to temperatures that are different from one another. 1. A temperature-control station , comprising:a member selected from the group consisting of a lower tool and an upper tool;a heat source in the form of at least one flat inductor provided on the member; anda temperature-control plate placed upon the inductor for support of a structure, said temperature-control plate being configured to accommodate at least one cooling channel for passage of a gaseous coolant so that two zones of the structure are adjustable to temperatures that are different from one another.2. The temperature-control station of claim 1 , wherein the heat source includes two of said flat inductor arranged side-by-side on the member and forming a flat inductor field.3. The temperature-control station of claim 1 , wherein the temperature-control plate is formed of at least two parts spaced to define a gap there between.4. The temperature-control station of claim 3 , further comprising insulating material arranged in the gap.5. The temperature-control station of claim 3 , wherein the cooling channel is arranged in close proximity to the gap.6. The temperature-control station of claim 1 , wherein the temperature-control plate has a plurality of cooling channels spaced from one another such as to define a cooler zone.7. The temperature-control station of claim 3 , wherein the temperature-control plate has a plurality of cooling channels positioned with successively increasing distance to the gap and having a cooling ...

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Номер записи: 47
22-02-2018 дата публикации

LOCALIZED HEAT TREATMENT

Номер: US20180051354A1
Автор: Huang Yujen, Shaw Tyler, Simone Matthew W., Wu Dave
Принадлежит:

Embodiments are described herein of a bifurcated heat treatment apparatus and methods for localized heat treatment of a golf club hosel or golf club head. The heat treating method comprises a bifurcated process in which the golf club head is treated in the first heating unit via induction heating and then moved to the second heating unit for convection heating. Both steps are to localize the hosel heat treatment. The heat treatment apparatus may also include a cooling component, such as a heat sink, to ensure the body of the club head remains at the correct temperature during the second heating stage when the hosel is heated in isolation. The overall bifurcated method and apparatus of the localized heat treatment leads to a hosel or golf club head with at least two different hardness values to allow for manipulation of the material without cracking or fracturing. 1. An apparatus comprising: a power supply;', 'a coiled tube coupled to the power supply at a first end of the coiled tube and a second end of the coiled tube; and', 'a device, wherein the device is configured to position a hosel of a golf club head inside a first localized heating area within the coiled tube;, 'a first heating unit located at a first position and a second heating unit located at a second position adjacent to the first position, wherein the first heating unit is an induction heater comprising an electric heater including a second localized heating area; and', 'a device wherein the device is configured to position the hosel of the golf club head in the second localized heating area of the electric heater., 'wherein the second heating unit comprises2. The apparatus of wherein claim 1 , the first and second heating units have temperature ranges of approximately 740-860° C. for a 17-4 steel alloy or approximately 640-800° C. for a 431 steel alloy claim 1 , carbon steel alloy claim 1 , or Chromium-Molybdenum steel alloy.3. The apparatus of wherein claim 1 , the second heating unit further ...

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Номер записи: 48
23-02-2017 дата публикации

Method and System for Selectively Softening Hot Stamped Parts by Induction Heating

Номер: US20170051371A1
Автор: Chauvin Kevin Robert, CHIRIAC Constantin, Huff Garret Sankey, Sohmshetty Raj
Принадлежит:

A method and system are disclosed for treating a press hardened part by induction heating localized areas of the part to have reduced hardness. The method and system monitor an ambient temperature, cycle time, outgoing part property requirements, and outgoing part hardness in local areas. A time value and temperature value are set by a computer system for a plurality of induction heaters. A local area of the part is induction heated to soften the part in localized areas. The hardness of the localized areas is tested after induction heating. 1. A method of treating a press hardened part comprising:monitoring an ambient temperature, system inputs including cycle time and outgoing part property requirements, outgoing part hardness in local areas, and at least one table of material properties;setting a time value and temperature value for a plurality of induction heaters;induction heating a local area of the part; anddetermining outgoing part hardness of the local area of the part after induction heating.2. The method of further comprising:determining a temperature distribution of the part following induction heating.3. The method of further comprising:determining a temperature distribution of the part following a hot stamping operation and prior to induction heating.4. The method of further comprising:imaging the part thermally following induction heating.5. The method of further comprising:imaging the part thermally following a hot stamping operation and prior to induction heating.6. The method of further comprising:measuring a material property of the outgoing part and converting the measurement of the material property to a hardness value;providing the hardness value to a computer system; andsetting the time value and temperature value for the induction heaters for a subsequent part.7. The method of further comprising:measuring a material property of a part during induction heating to obtain a real-time in process temperature distribution data; andproviding the real ...

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Номер записи: 49
23-02-2017 дата публикации

Method For The Heat Treatment Of A Steel Reinforcement Element For Tires

Номер: US20170051375A1
Автор: COLIN ERIC, FAUCHEUX Elisabeth, MORISOT Pierre, RENAUX Benoît
Принадлежит:

The method for the heat treatment of a steel reinforcing element (F) for a tire comprises a transformation of the steel microstructure and in which the temperature of the reinforcing element (F) is reduced during the transformation of the steel microstructure by simultaneously extracting heat from the reinforcing element (F) and supplying heat to the reinforcing element (F). 114.-. (canceled)15. A method for the heat treatment of a steel reinforcing element for a tire , comprising a transformation of the steel microstructure and wherein the temperature of the reinforcing element is reduced during the transformation of the steel microstructure by simultaneously extracting heat from the reinforcing element and supplying heat to the reinforcing element.16. The method according to claim 15 , wherein the heat is extracted from the reinforcing element by thermal convection in contact with at least one cold source.17. The method according to claim 15 , wherein the heat is supplied to the reinforcing element by the Joule effect through the reinforcing element.18. The method according to claim 15 , wherein the heat is extracted from the reinforcing element by means for extracting heat from the reinforcing element comprising:a run chamber of the reinforcing element containing an intermediate cold source arranged between the reinforcing element and an external cold source, anda chamber for circulation of the external cold source arranged around the run chamber of the reinforcing element.19. The method according to claim 18 , wherein the intermediate cold source comprises a heat exchange gas.20. The method according to claim 19 , wherein the heat exchange gas comprises a gas selected from reducing gases claim 19 , inert gases and mixtures of these gases.21. The method according to claim 18 , wherein the external cold source comprises a heat exchange liquid.22. The method according to claim 15 , wherein the heat is supplied to the reinforcing element by means for supplying heat ...

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Номер записи: 50
02-03-2017 дата публикации

POWDER-BED ADDITIVE MANUFACTURING DEVICES AND METHODS

Номер: US20170056975A1
Автор: Carter William Thomas, Cheverton Mark Allen, DEAL Andrew David, GIGLIOTTI Michael Francis Xavier, KALITA Samar Jyoti, MEYER Mark Kevin
Принадлежит: GENERAL ELECTRIC COMPANY

The disclosure relates to an apparatus for manufacturing a metallic component, and corresponding methods. The apparatus may include a build plate with a build surface and an aperture. The apparatus may also include an actuator operable to translate a metallic component such that an end portion of the metallic component is positioned within the aperture of the build plate and below the build surface. The apparatus may further include a seal coupled within the aperture of the build plate and configured to engage the end portion of the metallic component. The aperture of the build plate, the seal, and the end portion of the metallic component may cooperate to form a powder bed to hold metallic powder therein. The apparatus may also include an external heat control mechanism operable to form a predetermined temperature profile of the end portion of the component to prevent cracking of the component. 1. An apparatus for manufacturing a metallic component or portion thereof , comprising:a build plate including a build surface, a bottom surface and an aperture extending through the build plate between the bottom surface and the build surface;an actuator operable to translate a metallic component with respect to the build plate such that an end portion of the metallic component is positioned within the aperture of the build plate and below the build surface;a seal coupled within the aperture of the build plate and configured to engage the end portion of the metallic component; andan external heat control mechanism positioned proximate to the bottom surface of the build plate and operable to form a predetermined temperature profile of the end portion to prevent cracking of the component,wherein the aperture of the build plate, the seal, and the end portion of the metallic component cooperate to form a powder bed configured to hold metallic powder of a predetermined composition therein.2. The apparatus of claim 1 , wherein the aperture of the build plate includes a first ...

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Номер записи: 51
21-02-2019 дата публикации

HEAT-PROCESSING DEVICE AND HEAT-PROCESSING METHOD

Номер: US20190055618A1
Автор: Ito Yasutoshi, MANO Yoshiya, Suzuki Shintaro
Принадлежит:

Provided is a heat treatment apparatus (), including: a heating unit (), which is configured to inductively heat a workpiece (W) to a target temperature; and a drive mechanism, which is configured to move a plurality of the coaxially held workpieces (W) relative to the heating unit () being in an energized state in an axial direction of the workpiece (W), wherein the heating unit () includes: a plurality of coil members () respectively including a ring-shaped coil portion () arranged coaxially with the workpiece (W) so as to be capable of surrounding the workpiece (W); and a frame body (), which is configured to support each of the plurality of coil members () so as to be movable in the axial direction of the workpiece while maintaining the coaxial arrangement between the coil portions (). 1. A heat treatment apparatus , comprising:a heating unit, which is configured to inductively heat a workpiece to a target temperature; anda drive mechanism, which is configured to move a plurality of the coaxially held workpieces relative to the heating unit being in an energized state in an axial direction of the workpiece, a plurality of coil members respectively including a coil portion arranged coaxially with the workpiece so as to be capable of surrounding the workpiece, each parts of the coil portion in an extending direction of the coil portion being positioned on the same plane; and', 'a frame body, which is configured to support each of the plurality of coil members so as to be movable in the axial direction of the workpiece while maintaining the coaxial arrangement between the coil portions., 'wherein the heating unit comprises2. The heat treatment apparatus according to claim 1 , wherein the heating unit further comprises a connecting component claim 1 , which is configured to electrically connect two of the plurality of coil members being adjacent to each other in the axial direction of the workpiece.3. The heat treatment apparatus according to claim 2 , wherein the ...

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Номер записи: 52
10-03-2022 дата публикации

DATA LINE WITH MEMORY FUNCTION AND METHOD FOR CONTROLLING THE SAME

Номер: US20220076860A1
Автор: Su Shaolin
Принадлежит:

The present invention provides a data line with a memory function. The data line includes a connection cable and a plug connector arranged on the connection cable; the connection cable includes a memory alloy wire arranged along its length direction, and the memory alloy wire is electrically connected with the plug connector; the plug connector is configured to be connected to an electronic device, and the electronic device provides a current for the memory alloy wire, and the current can raise the temperature of the memory alloy wire to reach a memory deformation temperature. The connection cable of the present invention can automatically change its shape. 1. A data line with a memory function , wherein the data line comprises a connection cable , a plug connector arranged on the connection cable , and a control circuit electrically connected with the plug connector; the connection cable comprises a conductive wire and a memory alloy wire which are arranged along a length direction of the connection cable , the conductive wire and the memory alloy wire are electrically connected with the control circuit; the plug connector is configured to be connected to an electronic device , and the electronic device provides a current for the conductive wire and the memory alloy wire so as to raise a temperature of the memory alloy wire to reach a memory deformation temperature.2. The data line with a memory function according to claim 1 , wherein the control circuit controls the voltage to be changed to reach a predetermined voltage so that a suitable current passes through the memory alloy wire and thus the temperature of the memory alloy wire is raised to reach the memory deformation temperature claim 1 , when the control circuit does not recognize within a predetermined time period that the current passes through the conductive wire.3. The data line with a memory function according to claim 1 , wherein the control circuit controls the voltage to be changed to reach a ...

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Номер записи: 53
10-03-2016 дата публикации

METHOD FOR PRODUCING A METAL STRIP BY CASTING AND ROLLING

Номер: US20160067753A1
Автор: Bilgen Christian, CECERE Cosimo Andreas, Klein Christoph, Klinkenberg Christian, Neumann Luc, PANDER Michael, Rosenthal Dieter
Принадлежит:

A method for producing a metal strip () by casting and rolling, wherein first a slab () is cast in a caster () by dispensing metal from a mold (), wherein the slab () is deflected from the vertical direction to the horizontal direction in the region of a strand guide (), wherein the slab () is then tempered in a furnace (), wherein the slab () is rolled in a rolling train () after the furnace () and wherein the slab () is processed either in discontinuous batch operation or in continuous or semi-continuous operation in dependence on a specified manner of operation. According to the invention, in order to create optimal process conditions for all desired operating modes, the slab () to be rolled or the metal strip () being rolled is subjected to heating in the region of the rolling train () at least between two roll stands () by means of an inductor (). 1132435363763. Method of producing a metal strip () by casting and rolling , wherein first a slab () is cast in a caster () by dispensing metal from a mold () , wherein the slab () is deflected from a vertical direction to the horizontal direction in a region of a strand guide () , wherein the slab () is the tempered in a furnace () , wherein the slab () is rolled in a rolling train () after the furnace () , and wherein , the slab () is processed either in discontinuous batch operation or in continuous or semi-continuous operation in dependence on a specified manner of operation , characterized in that{'b': 3', '1', '7', '8', '9', '10', '11', '12', '13', '14', '15, 'the slab () to be rolled or the metal strip () being rolled is subjected to heating in the region of the rolling train () at least between two roll stands (, , , , , , ) by means of an inductor ().'}271589. The method of claim 1 , characterized in that the rolling train () is a tandem rolling train claim 1 , wherein heating takes place claim 1 , by the inductor () located claim 1 , viewing in the transportation direction claim 1 , between first two rolling ...

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Номер записи: 54
28-02-2019 дата публикации

A METHOD FOR HEAT TREATING AN IRON-CARBON ALLOY

Номер: US20190062855A1
Автор: RAJIB Saha, SANJAY Chandra, SAURABH Kundu
Принадлежит: Tata Steel Limited

The present disclosure discloses a method for heat treating an iron-carbon alloy. The method comprises acts of heating the iron-carbon alloy to a first pre-determined temperature at a pre-determined heating rate, holding the iron-carbon alloy at the first pre-determined temperature for a pre-set period of time. The method further comprises acts of cooling the iron-carbon alloy to a second pre-determined temperature at a pre-determined cooling rate and inducing magnetic field on the iron-carbon alloy selectively during at least one of heating and cooling of the iron-carbon alloy. The induction of magnetic field on the iron-carbon alloy results in microstructural changes to improve formation of pearlitic structure in the iron-carbon alloy. 1. A method for heat treating an iron-carbon alloy , the method comprising acts of:heating, the iron-carbon alloy to a first pre-determined temperature at a pre-determined heating rate;holding, the iron-carbon alloy at the first pre-determined temperature for a pre-set period of time;cooling, the iron-carbon alloy to a second pre-determined temperature at a pre-determined cooling rate; andinducing, magnetic field on the iron-carbon alloy during the heating and the cooling of the iron-carbon alloy, to improve formation of pearlitic structure.2. The method as claimed in comprises act of selectively inducing the magnetic field on the iron-carbon alloy during holding of the iron-carbon alloy at the first pre-determined temperature for the pre-set period of time.3. The method as claimed in claim 1 , wherein the first predetermined temperature is above austenization temperature of the iron-carbon alloy.4. The method as claimed in claim 1 , wherein the first pre-determined temperature ranges from about 800° C. to about 1000° C.5. The method as claimed in claim 1 , wherein the pre-determined heating rate ranges from 0.01° C./second to about 5° C./second.6. The method as claimed in claim 1 , wherein the pre-set period of time ranges from ...

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Номер записи: 55
27-02-2020 дата публикации

METHOD FOR PRODUCING A METAL STRIP IN A CAST-ROLLING INSTALLATION

Номер: US20200061685A1
Автор: CECERE Cosimo Andreas, Klein Christoph, Matthias PETERS, SEIDEL Jürgen
Принадлежит:

A method for producing a metal strip in a cast-rolling installation, the cast-rolling installation includes the following: a casting machine, a first furnace, a first shear, a roughing train, a second furnace, a second shear, a finishing train, a cooling section, a reeling system, and a third shear. In order to allow a flexible reaction to different operating conditions, at least one of the following operating modes is selected in order to produce the strip: a) a continuous rolling, in which the casting machine, the roughing train, and the finishing train are operatively connected together; b) a continuous rolling in the roughing train and a single-strip rolling in the finishing train; c) a single-strip rolling in the roughing train and a single-strip rolling in the finishing train; and d) a semi-continuous rolling in the roughing train and/or a semi-continuous rolling in the finishing train. 112-. (canceled)13. A method for producing a metallic strip in a cast-rolling installation , wherein the cast-rolling installation comprises:a casting machine for casting a slab;a first furnace and/or a first rolling table damping section, either or both following in a conveying direction of the metallic strip of the casting machine;a first shear disposed between the casting machine and the first furnace and/or the first rolling table damping section;a roughing train having a number of roll stands;a second furnace and/or a second rolling table damping section, either or both following in the conveying direction of the metallic strip of the roughing train;a second shear disposed between the roughing train and the second furnace and/or the second rolling table damping section;a finishing train having a number of roll stands;a cooling section;a reeling installation having at least two reels or one reversing reel; anda third shear disposed between the cooling section and the reeling installation,the method including choosing one of the following operating modes for producing the ...

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Номер записи: 56
08-03-2018 дата публикации

METHOD FOR PRODUCING A CAMSHAFT

Номер: US20180065205A1
Автор: Geyer Andreas, Mohler Mario, Winkler Peter
Принадлежит:

A method for producing a camshaft may include: providing at least two metallic components; and welding the at least two components to one another via a combined induction/friction welding method. According to an implementation, one of the at least two components is a camshaft tube and the other of the at least two components is a drive element. 1. A method for producing a camshaft comprising:providing at least two metallic components; andwelding the at least two components to one another via a combined induction/friction welding method.2. The method according to claim 1 , wherein providing the at least two components includes arranging a drive element as one of the at least two components on a longitudinal end of a camshaft tube as the other of the at least two components.3. The method according to claim 1 , wherein the combined induction/friction welding method includes:heating opposite surfaces of the at least two components via an induction heater to a predetermined temperature that is greater than a re-crystallization point of the at least two components in a non-oxidizing atmosphere;continuously moving at least one component relative to the other component of the at least two components parallel to the opposite surfaces;bringing together the opposite surfaces of the at least two components to be connected to one another with an axial force while at least one of the at least two components is in motion to weld the opposite surfaces of the at least two components to one another, wherein at least approximately 90% of the welding energy is contributed by the induction heater and the equalizing welding energy is contributed by common friction welding, and wherein a loss of total length of the at least two components is less than 1.0 axial millimeters per millimeter of a wall thickness of the at least two components.4. The method according to claim 3 , wherein heating the opposite surfaces of the at least two components to the predetermined temperature is performed ...

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Номер записи: 57
29-05-2014 дата публикации

CARTRIDGE CASE INDUCTION ANNEALING APPARATUS

Номер: US20140144903A1
Автор: Findlay Alexander, Findlay Matthew A.
Принадлежит: AMP ANNEALING LIMITED

The invention relates to an induction annealing apparatus able to anneal cartridge cases to improve their reusability. The apparatus may comprise a power supply unit and a plurality of annealing units, each comprising a magnetic core having ends separated by an air gap. An induction coil is wound around the magnetic core to generate a magnetic field in the air gap. A cartridge case holder holds the cartridge case such that the neck of the cartridge case is positioned in one of the air gaps. The power supply unit selectively connects to the annealing units to supply power for a predetermined length of time, and the size of the air gap of the magnetic cores of each of the annealing units may differ. In other embodiments, the size of the air gap may be adjustable, a temperature sensor or a ferrite stake may be provided. 1. A system for induction annealing a neck of a cartridge case , the system comprising:a power supply unit comprising a power supply controller; and a magnetic core having a first end and a second end separated by an air gap;', 'an induction coil wound around the magnetic core and configured to generate a magnetic field in the magnetic core and the air gap; and', 'a power supply connector electrically connected to the induction coil;, 'a plurality of annealing units, each annealing unit comprisingthe system further comprising a cartridge case holder for holding the cartridge case such that the neck of the cartridge case is positioned in one of the air gaps,wherein the power supply unit is configured to be selectively electrically connected to the power supply connector of any one of the annealing units,wherein the power supply controller is operable to supply power to the annealing unit connected to the power supply unit for a predetermined length of time, andwherein the size of the air gap of the magnetic cores of each of the annealing units differs.2. A system as claimed in claim 1 , wherein the power supply controller is operable to select the ...

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Номер записи: 58
09-03-2017 дата публикации

Induction heating device of blank

Номер: US20170066034A1
Автор: Woo Ho YANG
Принадлежит: Hyundai Motor Co

An induction heating device of a blank is provided. The device includes an induction heating member that is disposed on a table while being spaced apart from an inducting heating target by a predetermined interval. Additionally, a power unit is configured to supply power to the induction heating member to cause the induction heating member to heat a part of the induction heating target and a cooling unit is configured to cool the induction heating member.

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Номер записи: 59
09-03-2017 дата публикации

Induction Hardening Apparatus, Induction Hardening Method, Induction Heating Coil, Heat Treatment Apparatus, and Heat Treatment Method

Номер: US20170067130A1
Автор: Asano Yuji, Misaka Yoshitaka, Tanaka Yoshimasa
Принадлежит: NETUREN CO., LTD.

According to an embodiment, an induction heating coil includes a heating conductor portion which is formed of a conductor member and has a zigzag shape in which a bent portion opened to one side in a first direction and a bent portion opened to the other side in the first direction are alternately continuously arranged in opposite directions along a second direction crossing the first direction 1. An induction hardening method comprising a moving and heating step of arranging heating coils , which have heating conductor portions that inductively heat different parts of a treatment target portion of a treatment object in an axial direction crossing a circumferential direction , to face at least a part of the treatment target portion and relatively moving the treatment target portion and the heating coils along the circumferential direction of the treatment target portion while performing a heat treatment on the treatment target portion using the heating coils ,respective regions of the treatment target portion being heated by the heating conductor portions of the heating coils form one continuous heating region,at least one of the heating coils having a zigzag shape in which a bent portion opened to one side in the axial direction and a bent portion opened to the other side in the axial direction are alternately continuously arranged in opposite directions along the circumferential direction.2. The method according to claim 1 , comprising a cooling step of cooling the treatment target portion after the moving and heating step with respect to a whole stroke of the treatment target portion in the circumferential direction.3. An induction heating coil claim 1 , comprising:a heating conductor portion which faces at least a part of a treatment target portion and performs a heat treatment for the treatment target portion while relatively rotationally moving with respect to the treatment target portion, the heating conductor portion comprising a conductor portion that ...

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Номер записи: 60
08-03-2018 дата публикации

Heat Treatment of Helical Springs or Similarly Shaped Articles by Electric Resistance Heating

Номер: US20180070409A1
Автор: Jerry G. Warner
Принадлежит: Radyne Corp

Apparatus is provided for metallurgical heat treatment of coil springs, or similarly shaped workpieces and articles of manufacture, by electric resistance heating along the entire length of the workpiece so that the ends of the workpiece can be heat treated to the same degree and quality as the section of the workpiece between its two ends.

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Номер записи: 61
19-03-2015 дата публикации

Induction Heat-Treating Apparatus and Process

Номер: US20150075679A1
Автор: Garza Rene Javier Hinojosa
Принадлежит:

An apparatus for induction heat treating and quenching a metallic part with rolls to convey, guide and restrain the part during processing. The apparatus includes a heating coil assembly with two sections of coils wound in opposite directions. The apparatus may include a quenching station with individual quenching sections having different pressures and flows of a liquid. A process for induction heat treating and quenching a metallic part in a series of rolls includes induction heating the part in a counter-wound coil assembly; quenching the part with a liquid while under restraint, and induction heating the part again after quenching. Controlling varying speed and the proximity of the metallic part to the coil assembly is ideal. 1. A process for induction heat treating including quenching a metallic part of a vehicle structural frame in an apparatus , the process comprising:controlling speed of the part through the apparatus;induction heating the part in a counter-wound coil assembly;quenching the part with a liquid while under restraint, including the step of restraining the part in a series of restraining rolls during quenching; andinduction heating the part again after quenching.2. The process of wherein an exit speed of the part from the apparatus differs from an entrance speed of the part into the apparatus.3. The process of wherein the quenching occurs in individual quenching sections with different pressures and flows.4. The process of wherein the quenching is done longitudinally and perpendicularly.5. The process of wherein proximity of the part to the coil assembly is controlled by a computer.6. The process of in which induction heating after quenching is done in a counter-wound coil assembly with heating coil sections wound in opposite directions to temper the part.7. The process of including a step of controlling speed and acceleration of the part through the apparatus with rolls.8. The process of further comprising a step of controlling proximity of the ...

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Номер записи: 62
15-03-2018 дата публикации

STABILIZER AND METHOD FOR MANUFACTURING SAME

Номер: US20180072127A1
Автор: NISHIMURA Tatsuya
Принадлежит:

A stabilizer including: a main body for generating an elastic restoring force; and connecting portions formed on both ends of the main body and respectively connected to left and right suspension devices. Hardness of the connecting portions is lower than that of the main body. A method for manufacturing the stabilizer includes, in order, an entire body heat treatment process for heat treating an entire stabilizer and increasing hardness of the entire stabilizer, and a connecting portion softening process for heating the connecting portions and reducing the hardness of the connecting portions. The method for manufacturing the stabilizer thereby increases hardness of the main body and reduces the hardness of the connecting portions lower than that of the main body. 1. A stabilizer comprising:a main body for generating an elastic restoring force; andconnecting portions formed on both ends of the main body and respectively connected to left and right suspension devices, whereinhardness of the connecting portion is lower than that of the main body.2. A method for manufacturing a stabilizer comprising:providing a main body for generating an elastic restoring force; andforming connecting portions on both ends of the main body and respectively connected to left and right suspension devices, whereinby a connecting portion softening process of reducing hardness of the connecting portion by heating the connecting portion, the stabilizer comprising the connecting portion with lower hardness than that of the main body is manufactured.3. The method for manufacturing the stabilizer according to claim 2 , wherein before the connecting portion softening process claim 2 , heating an entire stabilizer to increase hardness of the entire stabilizer.4. The method for manufacturing the stabilizer according to claim 2 , wherein the connecting portion softening process includes high-frequency heat or electrically heat the connecting portion.5. A method for manufacturing a stabilizer ...

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Номер записи: 63
17-03-2016 дата публикации

Mold cavity with improved wear resistance and method of manufacture thereof

Номер: US20160076164A1
Автор: Troy DEVLIEGER
Принадлежит: Pfaff Molds LP

A method and system for forming a mold cavity is provided. The method and system contemplate a process of discharging a hardening element or material into a first material and subsequently machining the infused product to a desired shape such as a tear bead shape for a mold cavity for forming rubber and metal components. The methods and systems provided herein contemplate selective hardening of specific portions or features of a mold cavity without the need to provide conventional cooling or quenching operations.

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Номер записи: 64
16-03-2017 дата публикации

HEAT TREATMENT DEVICE, HEAT TREATMENT METHOD, AND RAIL STEEL

Номер: US20170073793A1
Автор: KARIMINE Kenichi, Saita Kenji, Ueda Masaharu
Принадлежит: NIPPON STEEL & SUMITOMO METAL CORPORATION

An object of the present invention is to provide a heat treatment device, a heat treatment method, and a rail steel which are suitable for preventing the occurrence of brittle fractures which originate in a base portion of a weld of the rail steel. A heat treatment device of the present invention includes a coil and heats a bottom surface of the base portion of the weld of the rail steel by induction heating. When a region in the weld which is heated to an Ac1 point or higher during welding is represented by HAZ, and the length of the HAZ in a length direction of the rail on the bottom surface of the base portion is represented by Lh, and a width of the rail steel is represented by W, the length of an outer region of the coil in the length direction of the rail is 1.2 times or more Lh and the length of the outer region of the coil in a width direction of the rail is 1.1 times or more W when viewed from opposite the bottom surface of the base portion. 1. A heat treatment device which includes a coil and heats a bottom surface of a base portion of a weld of a rail steel by induction heating ,wherein when a region in the weld which is heated to an Ac1 point or higher during welding is represented by HAZ, and a length of the HAZ in a length direction of the rail on the bottom surface of the base portion is represented by Lh, and a width of the rail steel is represented by W,when viewed in a line of sight against the bottom surface of the base portion, a length of an outer region of the coil in the length direction of the rail is 1.2 times or more Lh and a length of the outer region of the coil in a width direction of the rail is 1.1 times or more W.2. The heat treatment device according to claim 1 ,wherein the length of the outer region of the coil in the length direction of the rail is 40 mm or more.3. The heat treatment device according to claim 1 ,wherein the length of the outer region of the coil in the width direction of the rail is 1.2 times or more W.4. The heat ...

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Номер записи: 65
18-03-2021 дата публикации

Process for Local Hardening

Номер: US20210079490A1
Автор: Autenrieth Hermann, Cesinger Michael, Hansel Marcus, Waldenmaier Thomas
Принадлежит:

A process for the local hardening of a workpiece by means of local induction hardening includes performing a local perlitization grain transformation on the workpiece after a local inductive diffusion heat treatment and before a local induction hardening on the workpiece. 1. A process for the local hardening of a workpiece comprising:performing a local inductive diffusion heat treatment on the workpiece;performing a local perlitization grain transformation on the workpiece after the local inductive diffusion heat treatment; andperforming a local induction hardening on the workpiece after preforming the local perlitization grain transformation on the workpiece.2. The process according to claim 1 , wherein a duration of the local inductive diffusion heat treatment is brief compared to a duration of the local induction hardening.3. The process according to claim 2 , wherein a duration of the local perlitization grain transformation is comparable to the duration of the local induction hardening.4. The process according to claim 3 , wherein the local diffusion heat treatment is carried out at a temperature which is the same or slightly lower than a temperature at which the local induction hardening is carried out.4. The process according to claim 4 , wherein the local perlitization grain transformation is carried out at a temperature which is significantly lower than the temperature at which the local induction hardening is carried out.6. The process according to claim 3 , wherein the local perlitization grain transformation is carried out at a temperature which is significantly lower than a temperature at which the local induction hardening is carried out.7. The process according to claim 3 , whereinthe local diffusion heat treatment is carried out at a temperature which is the same or slightly lower than a temperature at which the local induction hardening is carried out; andthe local perlitization grain transformation is carried out at a temperature which is ...

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Номер записи: 66
12-03-2020 дата публикации

TRACK LINK FOR A TRACK JOINT ASSEMBLY HAVING WEAR BAND WITH LENGTHWISE-VARIED HARDNESS

Номер: US20200079446A1
Автор: Steiner Kevin
Принадлежит: CATERPILLAR INC.

A track link for a ground-engaging track system includes an elongate link body having an upper rail surface located in part upon each of a first link strap, a second link strap, and a middle section of the track link. The upper rail surface is formed by a wear band of sacrificial wear material having a hardness that is varied lengthwise along the upper rail surface to retard scalloping of the track link during service and forming relatively softer zones in the first and second link straps and a relatively harder zone within the middle section. Methodology for making such a track link is also disclosed. 1. A track link for a ground-engaging track system in a machine comprising:an elongate link body including a first link strap having a track pin bore formed therein, a second link strap having a bushing bore formed therein, and a middle section connecting between the first link strap and the second link strap;the elongate link body further including a lower shoe-mounting surface, and an upper rail surface, the upper rail surface being located in part upon each of the first link strap, the second link strap, and the middle section, and formed by a wear band of sacrificial wear material; andthe sacrificial wear material having a hardness that is varied lengthwise along the upper rail surface to form a first relatively softer zone located in the first link strap, a second relatively softer zone located in the second link strap, and a relatively harder zone located at least in part within the middle section.2. The track link of wherein the relatively harder zone extends into each of the first link strap and the second link strap.3. The track link of wherein the relatively harder zone is continuous.4. The track link of wherein a lengthwise extent of the relatively harder zone within each of the first link strap and the second link strap is about 20% or less of a full length of the upper rail surface within the corresponding first or second link strap.5. The track link of ...

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Номер записи: 67
31-03-2016 дата публикации

INDUCTION HARDENED PROCESSING SHAFT AND METHOD OF MAKING SAME

Номер: US20160089766A1
Автор: Wern Michael J.
Принадлежит:

An induction hardened processing shaft of a part-processing apparatus and method of manufacturing includes exposing a shaft to a partial induction hardening process. An induction hardening process may be applied to only the portion of the shaft that may be exposed to processing spray or shot peening material. The portion of the shaft exposed to induction hardening will include a harder surface material that can better withstand its composition and structure during impact, minimizing or reducing the amount of wear on the surface from exposure to processing material utilized in the part-processing apparatus. By limiting the induction hardening process to less than the full length of the shaft, the shaft is less likely to experience substantial deformation, and further permits screws and fasters to be driven into the shaft to secure the shaft at specific locations with the processing apparatus. 1. A part processing assembly comprising a support shaft configured to support a part within the processing assembly , the support shaft including a first section extending into a processing field of the processing assembly and a second section extending outside of the processing field , wherein , before installation in the processing assembly , at least a portion of the first section is subjected to an induction hardening technique and the second section is not subjected to an induction hardening technique.2. The part processing assembly of claim 1 , wherein the support shaft is configured to rotate a part within the processing assembly.3. The part processing assembly of claim 2 , wherein the support shaft is coupled to a spindle assembly claim 2 , the spindle assembly located outside of the processing field.4. The part processing assembly of claim 3 , wherein the support shaft is coupled to the spindle assembly through screws or fasteners inserted into the support shaft.5. The part processing assembly of claim 3 , wherein the spindle assembly rotates the support shaft as parts ...

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Номер записи: 68
30-03-2017 дата публикации

DIRECT RESISTANCE HEATING METHOD AND PRESS-MOLDED PRODUCT MANUFACTURING METHOD

Номер: US20170087615A1
Автор: Ikuta Fumiaki, Ooyama Hironori
Принадлежит:

In a direct resistance heating method, a current is applied to a plate workpiece having a varying cross-sectional area to heat the workpiece such that a high-temperature heating region and a non-high-temperature heating region are provided side by side. The method includes a preparation step of arranging a pair of electrodes on the workpiece, and a heating step of moving a first electrode from one end of the high-temperature heating region while applying a current to the pair of electrodes, stopping the movement of the first electrode when the first electrode reaches the other end of the high-temperature heating region, and stopping the current from being applied to the pair of electrodes when a predetermined time elapses after stopping the first electrode. A press-molded product manufacturing method includes pressing the workpiece that has been heated by direct resistance heating method using a press die to perform hot press molding. 1. A direct resistance heating method in which a current is applied to a plate workpiece , a cross-sectional area of which varying in a longitudinal direction of the plate workpiece , and the plate workpiece is heated such that a high-temperature heating region and a non-high-temperature heating region are provided side by side along the longitudinal direction , the direct resistance heating method comprising:a preparation step of arranging a pair of electrodes including a first electrode and a second electrode on the plate workpiece; anda heating step of moving the first electrode in the longitudinal direction from one end of the high-temperature heating region while applying a current to the pair of electrodes, stopping the movement of the first electrode when the first electrode reaches the other end of the high-temperature heating region, and stopping the current from being applied to the pair of electrodes when a predetermined time elapses after the stopping of the movement of the first electrode.2. The direct resistance heating ...

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Номер записи: 69
21-03-2019 дата публикации

HEAT TREATMENT APPARATUS, HEAT TREATMENT METHOD FOR STEEL WORKPIECE, AND HOT BENDING METHOD FOR STEEL WORKPIECE

Номер: US20190085424A1
Автор: Kubota Hiroaki, Sakamoto Akihiro, Uematsu Kazuo
Принадлежит: NIPPON STEEL & SUMITOMO METAL CORPORATION

A heat treatment apparatus of one aspect of the present disclosure includes: a feed device that feeds a heat treatment workpiece downstream in a feed direction along a heat treatment workpiece pass-line; a heating device that includes a heating coil disposed downstream of the feed device in the feed direction and encircling the pass-line; a cooling device that is disposed adjacent to the heating coil, downstream of the heating coil in the feed direction, and encircling the pass-line; and a gas supply device that is disposed upstream of the heating coil in the feed direction, directly connected to the heating coil and encircling the pass-line, and that includes a plurality of gas compartments configured by internally partitioning the gas supply device in the feed direction. 1. A heat treatment apparatus , comprising:a feed device that feeds a heat treatment workpiece downstream in a feed direction along a heat treatment workpiece pass-line;a heating device that includes a heating coil disposed downstream of the feed device in the feed direction and encircling the pass-line;a cooling device that is disposed adjacent to the heating coil, downstream of the heating coil in the feed direction, and encircling the pass-line; anda gas supply device that is disposed upstream of the heating coil in the feed direction, directly connected to the heating coil and encircling the pass-line, and that includes a plurality of gas compartments configured by internally partitioning the gas supply device in the feed direction.2. The heat treatment apparatus of claim 1 , wherein the heating coil includes two turns claim 1 , and a filler is disposed between neighboring portions of the heating coil in the feed direction such that there are no gaps between the neighboring portions.3. A heat treatment apparatus claim 1 , comprising:a feed device that feeds a heat treatment workpiece downstream in a feed direction along a heat treatment workpiece pass-line;a heating device that includes a two- ...

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Номер записи: 70
30-03-2017 дата публикации

FLUID PROCESSING SYSTEM AND RELATED METHOD

Номер: US20170089608A1
Автор: Trembly Jason Patrick
Принадлежит:

A fluid processing system and method of processing a fluid includes a tank having an outer wall, a heating element, and an insulating element. The heating element is situated within the tank and includes a first electrode and a second electrode. The insulating element is positioned between the first electrode and the second electrode. As such, powering the heating element directs an electric current through the fluid within the tank for heating the fluid, while the insulating element provides electrical and thermal insulation to the outer wall of the tank. 1. A fluid processing system , comprising:a tank configured to receive a fluid and having an outer wall;a heating element situated in the tank and configured to be powered by an electrical power supply for heating the fluid, the heating element including a first electrode and a second electrode; andan insulating element positioned in the tank between the second electrode and the outer wall of the tank, the insulating element configured to electrically insulate and thermally insulate the outer wall from an electric current and heat generated within the tank.2. The fluid processing system of claim 1 , further comprising:an electric power supply operatively connected to the heating element and configured to provide the electric current to the heating element.3. The fluid processing system of claim 1 , wherein the tank is a generally cylindrical tank defining a longitudinally extending central axis claim 1 , and the first electrode extends along the central axis.4. The fluid processing system of claim 3 , wherein the first electrode is generally concentric with the second electrode.5. The fluid processing system of claim 4 , wherein the first electrode is rod-shaped and the second electrode is cylinder-shaped.6. The fluid processing system of claim 5 , wherein the first and second electrodes have a generally similar length extending along the tank.7. The fluid processing system of claim 6 , wherein the first and ...

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Номер записи: 71
12-05-2022 дата публикации

APPARATUS AND METHODS FOR THE DRYING TREATMENT OF AN INDUCTOR

Номер: US20220146198A1
Автор: Gigante Enzo, MUSCARNERA Giuseppe
Принадлежит: DANIELI AUTOMATION S.P.A

An apparatus for the off-line drying treatment, or dry out, of an inductor for billets that includes a coil and a protection body made of refractory material that defines a transit channel for the billets. 1. An apparatus for the off-line drying treatment , or dry out , of an inductor for billets , comprising: a coil and a protection body made of refractory material and defining a transit channel for the billets , wherein said apparatus comprises a heating device comprising at least one electric resistance configured to transform the electrical energy received into radiant heat and to act as a false billet , wherein said electric resistance has size and characteristics correlated to the sizes and characteristics of a real billet intended to be made to pass in the transit channel of the inductor , with an oblong development along a longitudinal axis and located , during use , inside the transit channel of the inductor , a support structure configured to support said resistance cantilevered in such a way that its axis of longitudinal development is oriented substantially horizontally , power supply devices configured to supply electrical energy to said resistance , and a control and command unit configured to command said power supply devices and regulate the functioning of said resistance according to a predefined program.2. The apparatus as in claim 1 , comprising temperature detection sensors configured to detect the temperature of said resistance claim 1 , wherein said temperature detection sensors comprise at least one thermocouple associated with said at least one resistance.3. The apparatus as in claim 2 , wherein said control and command unit is configured to modulate the supply voltage of said resistance on the basis of a feedback control in a closed loop of a detected temperature of said resistance and/or of a temperature of said refractory material estimated on the basis of a thermal mathematical model of the inductor to be subjected to drying treatment.4. ...

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Номер записи: 72
12-04-2018 дата публикации

PRODUCTION PROCESS FOR STAMPED PARTS OF HIGH MECHANICAL RESISTANCE, THROUGH CONTROLLED ELECTRIC HEATING

Номер: US20180099324A1
Автор: SPORTELLI Pietro
Принадлежит:

A production process for stamped parts carried out from bales of sheets (), a first moving robot (), a heating device () with a liquid cooling unit (), a second moving robot (), a hydraulic press () with a specific molding tool, a third moving robot (), and a conveyor belt (), controlled by an electronic control unit. Said specific molding tool is provided with channels for cooling done through heat exchange, via water circulation, where the cooling rate is controlled by means of the liquid's flow and temperature control. 1123456879) A production process for stamped parts of high mechanical resistance , through controlled electric heating , wherein a sheet (part) , from bales of sheets () , is transferred via a first moving robot () to an electric heating device () and after heating , via a second moving robot () , transferred to a specific molding tool () with a liquid cooling unit () arranged in a hydraulic press () , and after being formed , via a third moving robot () , is withdrawn as finished product , all the equipment being controlled by an electronic control unit ().23) The production process according to claim 1 , wherein the electric heating equipment () employing the joule heating theory to quickly raise the temperature of the plate (part) to values close to 900° C.355) The production process according to claim 1 , wherein the specific stamping tool () is cooled by a liquid cooling unit () containing channels for cooling claim 1 , by heat exchange via water circulation claim 1 , which promotes the phase change of the microstructure of the sheet (part) and the consequent hardening of the material claim 1 , the cooling being done at a temperature of approximately 5° C. in the channels and the water generated from a ice water unit with high nominal capacity claim 1 , and the cooling rate of the stamping tool to promote the necessary change of strength for each product claim 1 , as well as the flow rate that circulates in the stamping tool claim 1 , are ...

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Номер записи: 73
13-04-2017 дата публикации

SEAMLESS STEEL PIPE, METHOD OF PRODUCING A HIGH STRENGTH SEAMLESS STEEL PIPE, USAGE OF A SEAMLESS STEEL PIPE AND PERFORATION GUN

Номер: US20170101693A1
Автор: Lömker André
Принадлежит:

According to the present invention, a seamless steel pipe for use in cases where internal pressure is applied is disclosed, the seamless steel pipe having been produced by tempering a tubular steel body at a holding temperature of >450° C., the seamless steel pipe having a length extending between a first end and a second end, the seamless steel pipe having a high burst strength and at least over part of the length having a yield strength Rp0.2 of >1050 MPa, and the seamless steel pipe having a grain structure with an average grain size of <15 μm, and the tubular steel body having been manufactured from a steel alloy, which steel alloy comprises, besides iron and inevitable impurities, the following alloying elements in mass-%: 1. A seamless steel pipe for use in cases where internal pressure is applied , the seamless steel pipe having been produced by tempering a tubular steel body at a holding temperature of >450° C. , the seamless steel pipe having a length extending between a first end and a second end , the seamless steel pipe having a high burst strength and at least over part of the length having a yield strength Rp0.2 of >1050 MPa , and the seamless steel pipe having a grain structure with an average grain size of <15 μm , and the tubular steel body having been manufactured from a steel alloy , which steel alloy comprises , besides iron and inevitable impurities , the following alloying elements in mass-%:C 0.22-0.30%Mn 0.7-1.2%Si 0.13-0.38%Cr 0.7-1.2%Mo 0.5-0.8%.2. A seamless steel pipe according to claim 1 , characterized in that the yield strength Rp0.2 over at least part of the length of the pipe is >1200 MPa.3. A seamless steel pipe according to claim 1 , characterized in that the seamless steel pipe has a martensitic structure with at least 80% tempered martensite and characterized in that the notch toughness determined according to a Charpy Test at a longitudinal sample is at least 50 J and at a transverse specimen is at least 28 J.4. A seamless steel ...

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Номер записи: 74
13-04-2017 дата публикации

PROCESS FOR WARM FORMING A HARDENED ALUMINUM ALLOY

Номер: US20170101704A1
Автор: BASSI Corrado, Combaz Etienne, Despois Aude, Fumeaux Maude, Richard Julie, Romain Pasquier
Принадлежит: Novelis Inc.

Described are processes for shaping a hardened heat treatable, age-hardenable aluminum alloys, such as hardened 2XXX, 6XXX and 7XXX aluminum alloys, or articles made from such alloys, including aluminum alloy sheets. The processes involve heating the article, which may be in a form of a sheet or a blank, before and/or concurrently with a forming step. In some examples, the alloy is heated to a specified temperature in the range of 125-425° C. at a specified heating rate within the range of about 3-200° C./s, for example, 3-90° C./s or 90-150° C./s. Such a combination of the temperature and the heating rate can result in an advantageous combination of article properties. 1. A process of shaping an article made from a hardened age-hardenable , heat treatable aluminum alloy , comprising:heating the article to a temperature of about 125° C. to about 425° C. at a rate between about 3° C./s to about 200° C./s; andshaping the article.2. The process of claim 1 , wherein the article is a sheet or a blank.3. The process of claim 1 , wherein the hardened age-hardenable claim 1 , heat treatable aluminum alloy is a 2XXX claim 1 , a 6XXX or a 7XXX series alloy.4. The process of claim 1 , wherein the article is heated to a temperature of about 150° C. to about 200° C.5. The process of claim 1 , wherein the article is heated at a rate between about 90° C./s to about 150° C./s.6. The process of claim 1 , wherein the article is heated at a rate between about 3° C./s to about 90° C./s.7. The process of claim 1 , wherein the article is in T6 or T61 temper before the heating step.8. The process of claim 1 , wherein the article is in T6 or T61 temper before and after the heating step.9. The process of claim 1 , further comprising a step of cooling the shaped article.10. The process of claim 9 , wherein the shaping step is a first shaping step and further comprising a second shaping step after the cooling step.11. The process of claim 10 , wherein elongation of the article resulting from ...

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Номер записи: 75
12-04-2018 дата публикации

VOLATILE MATERIAL DISPENSER

Номер: US20180103507A1
Автор: BALDESSARI Stefano, Dalser Alessio, Davis Brian T., Faterioun Kamran, Michaels Kenneth W., PEDROTTI Andrea
Принадлежит: S. C. Johnson & Son, Inc.

A volatile material dispenser includes a housing configured to receive a refill containing a volatile material and a wick, the housing including a first cavity supporting a heater arrangement and a second, separate cavity supporting a fan arrangement for dispersing a vapor plume of the volatile material. The first cavity is substantially unobstructed between an upper, interior surface of the housing and an upper surface of the heater arrangement. The housing also includes an aperture through which the vapor plume exits the housing and a plurality of openings through which air from the fan arrangement directs the vapor plume away from the aperture. When a refill is received within the hosing, the upper surface of the heater arrangement is disposed nearer the aperture than a distal end of the wick, and a radial gap is formed between the heater arrangement and the wick. 1. A volatile material dispenser , comprising:a housing configured to receive a refill containing a volatile material and a wick, the housing including a first cavity supporting a heater arrangement and a second, separate cavity supporting a fan arrangement for dispersing a vapor plume of the volatile material, anda chimney between an upper, interior surface of the housing and an upper surface of the heater arrangement,wherein the housing includes an aperture through which the vapor plume exits the housing,wherein the housing includes a plurality of openings through which air from the fan arrangement is directed away from the aperture and toward the vapor plume, andwherein the dispenser is configured such that, when the refill is received within the housing, the upper surface of the heater arrangement is disposed nearer the aperture than a distal end of the wick and a radial gap is formed between the heater arrangement and the wick.2. The volatile material dispenser of claim 1 , wherein the heater arrangement includes a PTC heating element configured to provide radiant heating around a plurality of ...

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Номер записи: 76
21-04-2016 дата публикации

METHOD AND APPARATUS FOR HARDENING A COMPONENT OR SEMI-FINISHED PRODUCT

Номер: US20160108485A1
Автор: Banik Janko, Sikora Sascha
Принадлежит: THYSSENKRUPP STEEL EUROPE AG

Example methods and apparatus for hardening a component or any semi-finished product formed from a steel workpiece that has been shaped in a shaping tool may involve introducing the component into a receiving region of a hardening tool. The hardening tool may then be closed around the component in a form-fitting manner so as to surround the component and maintain a substantially constant distance between the component and at least one induction coil integrated into the hardening tool. The induction coil of the hardening tool may then be used to heat the component. The component may then be cooled within the receiving region or by removing the component from the receiving region and exposing the component to air external to the receiving region. 113-. (canceled)14. A method for hardening a component formed from a steel workpiece that has been shaped in a shaping tool , the method comprising:introducing the component into a receiving region of a hardening tool;closing the hardening tool around the component so as to surround the component in a form-fitting manner and maintain a substantially constant distance between the component and at least one induction coil integrated into the hardening tool;heating the component inductively by the at least one induction coil; andcooling the component.15. The method of wherein the steel workpiece is an air-hardening steel claim 14 , wherein the step of cooling the component comprises removing the component from the receiving region of the hardening tool and exposing the component to air external to the receiving region.16. The method of wherein the step of cooling the component comprises using a coolant to cool the component within the receiving region of the hardening tool while the hardening tool is closed around the component.17. The method of further comprising maintaining the component within the receiving region of the hardening tool in the form-fitting manner during the steps of heating and cooling.18. The method of ...

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Номер записи: 77
19-04-2018 дата публикации

METHOD FOR MANUFACTURING JOINED MEMBER AND APPARATUS FOR MANUFACTURING THE SAME

Номер: US20180104762A1
Автор: Kadoya Yasuo, OSHINO Yuki
Принадлежит:

To provide a method and apparatus for manufacturing a joined member that inhibit occurrence of cracks in a joined member even when the joined portion is quenched when members are welded together. The method includes placing the first member D and the second member E with a joint target portion Df and a joint target portion Ef being in contact with each other, welding the joint target portions by heating, subjecting the first member D after the welding to a process for inhibiting occurrence of cracks, and tempering a portion where the first and second members have been welded to each other by electromagnetic heating. The apparatus includes a first electrode to contact with the first member D; a second electrode to contact with the second member E; and an induction heating coil for performing induction heating of a portion where a joint target portions Df and Ef have been contacted and joined to each other, and the induction heating coil is placed between the two electrodes and when the induction heating is performed. 1. A method for manufacturing a joined member by joining a first member formed of a metal material having a possibility of undergoing quenching and a second member formed of a metal material , the method comprising:a contact-placing step of placing the first member and the second member with a joint target portion of the first member and a joint target portion of the second member being in contact with each other;a welding step of welding the joint target portions of the first member and the second member by heating;a crack-inhibition step of subjecting the first member after the welding step to a process for inhibiting occurrence of cracks;an electromagnetic heating step of tempering a portion where the first member and the second member have been welded to each other by electromagnetic heating;wherein the welding step is a step of performing resistance welding of the joint target portions of the first member and the second member with simultaneous ...

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Номер записи: 78
29-04-2021 дата публикации

SELF-HEATING LIQUID LENS AND SELF-HEATING METHODS FOR THE SAME

Номер: US20210124094A1
Автор: McKay Ian Armour, Pikula Dragan, Thelen Dean Michael
Принадлежит:

A liquid lens comprising: a lens body including a cavity, a control electrode, and a common electrode; a first liquid disposed within the cavity and in electrical communication with the common electrode; a second liquid disposed within the cavity; an insulating layer in contact with the first liquid and the second liquid and separating the first liquid and the second liquid from the control electrode; and a driver driving a voltage differential across the common electrode and the control electrode, with the first liquid resisting current flow between the common electrode and the control electrode and thereby raising a temperature of the first liquid from a current temperature to a predetermined temperature, which is higher than the current temperature. The driver raises the temperature of the first liquid from the current temperature to the predetermined temperature by increasing a frequency of a voltage waveform of the voltage differential. 1. A method of heating a liquid lens , the method comprising:passing an electric current through a first liquid disposed within a cavity of the liquid lens, whereby the first liquid resists the current, which generates heat thereby increasing a temperature of the first liquid from a current temperature to at least a predetermined temperature that is greater than the current temperature.2. The method of claim 1 , wherein:the liquid lens comprises an electrode and an insulating layer disposed between the electrode and the first liquid; andthe electric current is generated via capacitance charge and discharge, with the electrode, the insulating layer, and the first liquid functioning as a capacitor from which the capacitance charge and discharge occurs.3. (canceled)4. The method of claim 1 , comprising:manipulating the first liquid to alter light transmitted through the first liquid via a voltage waveform having a frequency; andincreasing the frequency of the voltage waveform from a first frequency to a second frequency that is ...

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Номер записи: 79
26-04-2018 дата публикации

TRIPOD UNIVERSAL JOINT FAIRWAY HEAT TREATMENT DEVICE AND HEAT TREATMENT METHOD

Номер: US20180112283A1
Автор: FAN Yousheng, LU Lei, MA Baibin, Wang Lijun, WANG Weikai, ZENG Lingyi
Принадлежит:

The present disclosure discloses a tripod universal joint fairway heat treatment device. A magnetizer includes a middle induction area and two-end induction areas, wherein the middle induction area includes magnetic conductive sheets stacked together; and the two-end induction areas include magnetic conductive sheets and magnetic conductive insulation sheets crosswise stacked together. Controllable deformation of an inner cavity fairway of a tripod universal joint during intermediate frequency quenching is realized by changing an arrangement form of the magnetic conductive sheets in the magnetizer, thereby avoiding a condition that three pivot shafts and bearing rings cannot be installed due to excessive deformation at a fairway opening after quenching, and greatly improving a qualified rate of products and safety performance of the products during use. 1. A tripod universal joint fairway heat treatment device , comprising:{'b': 1', '2', '1', '2', '3', '4', '3', '4', '5, 'at least one effective coil (), at least one magnetizer () arranged on the effective coil (); the magnetizer () comprises a middle induction area () and two-end induction areas (); the middle induction area () is provided between the two-end induction areas () and comprises magnetic conductive sheets () stacked together;'}{'b': 4', '5', '6, 'and the two-end induction areas () comprise magnetic conductive sheets () and magnetic conductive insulation sheets () crosswise stacked together.'}2644343. The tripod universal joint fairway heat treatment device according to claim 1 , wherein the quantity of the magnetic conductive insulation sheets () stacked in the two-end induction areas () is gradually decreased from one end of the two-end induction areas () far away from the middle induction area () to one end of the two-end induction areas () close to the middle induction area ().356. The tripod universal joint fairway heat treatment device according to claim 1 , wherein the magnetic conductive sheets ...

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Номер записи: 80
07-05-2015 дата публикации

GLASS PRODUCT MANUFACTURING METHOD AND GLASS PRODUCT MANUFACTURING APPARATUS

Номер: US20150121963A1
Автор: Hachinohe Satoru
Принадлежит:

A glass product manufacturing method that includes a step of disposing a workpiece configured of a glass material between two mutually-opposing punches, a step of starting to apply a pulsed current to the workpiece, and a step of starting to apply pressure to the workpiece using the two punches. The glass product is obtained from the workpiece through a discharge plasma process that causes the workpiece to deform in a state where the temperature of the workpiece has been increased by the application of the pulsed current. 1. A glass product manufacturing method , the method comprising:applying a pulsed current to a glass material workpiece so as to initiate a discharge plasma process that causes a temperature of the glass material workpiece to be increased; andapplying pressure to the glass material workpiece so as to cause the glass material workpiece to deform in a state where the temperature of the glass material workpiece has been increased by the application of the pulsed current.2. The glass product manufacturing method according to claim 1 , further comprising disposing the glass material workpiece between two mutually-opposing punches claim 1 , and wherein the pressure is applied to the glass material workpiece using the two mutually-opposing punches.3. The glass product manufacturing method according to claim 2 , wherein the step of applying the pulsed current to the glass material workpiece and the step of applying pressure to the glass material workpiece using the two mutually-opposing punches are carried out simultaneously.4. The glass product manufacturing method according to claim 1 , wherein the step of applying the pulsed current to the glass material workpiece and the step of applying pressure to the glass material workpiece are carried out simultaneously.5. The glass product manufacturing method according to claim 1 , wherein the application of the pressure to the glass material workpiece is released after the application of the pulsed current to ...

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Номер записи: 81
07-05-2015 дата публикации

METHOD FOR PRODUCING CUTTING BLADES

Номер: US20150122103A1
Автор: MAISSER Helmut, PONEMAYR Helmut
Принадлежит: BOEHLER PROFIL GMBH

Disposable cutting blades and method for producing disposable cutting blades with profiled cross sections for a device for chipping wood. The method includes heating a primary material of a hardenable material in a soft-annealed state having a worked surface to a temperature above room temperature, but below a conversion temperature Ac1, rolling the primary material to form a profile blank with at least one precisely gaged guide path in a base body in cross section and with an increased thickness of at least one edge region, a metal-removing working of at least one edge region in a longitudinal direction of the profile blank to form a cutting edge and to form scratching edges in a spaced manner directed perpendicularly to the cutting edge, and continuously hardening the edge regions of the cutting blade. 1. A method for producing disposable cutting blades with profiled cross sections for a device for chipping wood , the method comprising:heating a primary material of a hardenable material in a soft-annealed state having a worked surface to a temperature above room temperature, but below a conversion temperature Ac1;rolling the primary material to form a profile blank with at least one precisely gaged guide path in a base body in cross section and with an increased thickness of at least one edge region;a metal-removing working of at least one edge region in a longitudinal direction of the profile blank to form a cutting edge and to form scratching edges in a spaced manner directed perpendicularly to the cutting edge; andcontinuously hardening the edge regions of the cutting blade.2. The method according to claim 1 , wherein the hardenable material comprising hardenable steel or a hardenable alloy.3. The method according to claim 1 , wherein the temperature is achieved within a range of a cubic-space-centered atomic structure of the material.4. The method according to claim 1 , wherein the profile blank is rolled with an overfilled groove.5. The method according to ...

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Номер записи: 82
07-05-2015 дата публикации

Site conditions thick-wall P92 pipe local heat treatment method

Номер: US20150122376A1
Автор: Han Yongdian, Jing Hongyang, MIAO Yi, Xu Lianyong
Принадлежит: TIANJIN UNIVERSITY

The present invention published a large walled field conditions P92 long pipeline local heat treatment processes. Firstly, according to the specific conditions for the on-site grade heat-resistant steel (P92 pipe), combining of the finite element method and test, the Heated Band (HB) width and Gradient Control Band (GCB) was calculated. The pipe was then locally heated using the flexible ceramic resistive heater. When the temperature reaches 80-100° C., the pipe was heated to constant temperature at 80-100° C. for 2 h. The pipe was heated to 300° C. at the rate of 150° C./h. When the temperature reaches 300° C., rising the temperature to 765° C. at the rate of 80° C./h. Holding time is calculated by the wall thickness (5 min/mm, no less than 4 h). Lowering the temperature to 300° C. at the rate of 100° C./h and then natural cooling to room temperature, finally removing the heating device. Finally, the local heat treatment process can be obtained. The present invention can effectively decrease the temperature difference between the outer and inner wall, the residual stress in the welded joints. Thus the service properties can be guaranteed. 1. Site conditions walled pipe P92 local heat treatment method was implemented , according to the following steps {'br': None, 'i': √{square root over (Rt)}−', 'R−, 'HB=15.6×3.556×372'}, 'Step 1, Calculating the Heated Band (HB) width and Gradient Control Band (GCB)'} {'br': None, 'GCB=1.4×HB+226'}, 'Where R is pipe inside radius, t is pipe wall thickness'}Step 2, In accordance with the P92 steel pipe welding process for welding.Step 3, after welding, when the P92 pipe was cool down to 120-150° C. using the calculation results in Step 1 the respective heating device, insulation device were installed outside P92 pipes and the thermocouple was arranged. When the temperature reaches 80-100° C., the pipe was heated to constant temperature at 80-100° C. for 2 h.Step 4, the pipe was heated to 300° C. at the rate of 150° C./h. When the ...

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Номер записи: 83
09-04-2020 дата публикации

METHOD FOR MANUFACTURING JOINED MEMBER AND APPARATUS FOR MANUFACTURING THE SAME

Номер: US20200108461A1
Автор: Kadoya Yasuo, OSHINO Yuki
Принадлежит:

To provide a method and apparatus for manufacturing a joined member that inhibit occurrence of cracks in a joined member even when the joined portion is quenched when members are welded together. The method includes placing the first member D and the second member E with a joint target portion Df and a joint target portion Ef being in contact with each other, welding the joint target portions by heating, subjecting the first member D after the welding to a process for inhibiting occurrence of cracks, and tempering a portion where the first and second members have been welded to each other by electromagnetic heating. The apparatus includes a first electrode to contact with the first member D; a second electrode to contact with the second member E; and an induction heating coil for performing induction heating of a portion where a joint target portions Df and Ef have been contacted and joined to each other, and the induction heating coil is placed between the two electrodes and when the induction heating is performed. 1. A method for manufacturing a joined member by joining a first member formed of a metal material having a possibility of undergoing quenching and a second member formed of a metal material , the method comprising:a contact-placing step of placing the first member and the second member with a joint target portion of the first member and a joint target portion of the second member being in contact with each other;a welding step of welding the joint target portions of the first member and the second member by heating;a crack-inhibition step of subjecting the first member after the welding step to a process for inhibiting occurrence of cracks;an electromagnetic heating step of tempering a portion where the first member and the second member have been welded to each other by electromagnetic heating;wherein the welding step is a step of performing resistance welding of the joint target portions of the first member and the second member with simultaneous ...

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Номер записи: 84
07-05-2015 дата публикации

CROSS-LINKED GRAPHENE NETWORKS

Номер: US20150122800A1
Автор: Alyoubi Abdulrahman O., Asiri Abdullah M, Gallastegui Ainara Garcia, Shaffer Milo
Принадлежит:

The present invention relates to a method for the production of cross-linked graphene and graphene oxide networks, which are selected from aerogels and xerogels with improved performance and characteristics thereof. The invention is also concerned with graphene and graphene oxide networks, which are selected from aerogels and xerogels produced by such processes and uses thereof. 1. A method of producing an aerogel or xerogel comprising graphene , graphene oxide or a mixture thereof , comprising the steps of: a) dispersing graphene , graphene oxide or a mixture thereof in a solvent compatible therewith; b) cross-linking said graphene , graphene oxide or a mixture thereof via functional groups present on the graphene and/or the graphene oxide , or with a linking molecule comprising at least two functional sites capable of reacting with the surface of said graphene and/or graphene oxide , to form a covalently cross-linked gel network; and c) removing said solvent to produce a cross-linked aerogel or xerogel with a solvent content of less than 10%.2. The method according to claim 1 , wherein said cross-linking is carried out by direct reaction between the surface oxides on the graphene oxide surface.3. The method according to claim 1 , wherein said graphene oxide is oxidised graphene and wherein said cross-linking is carried out with a molecule selected from the group consisting of alkyl diamines claim 1 , aromatic diamines claim 1 , alkyl diols claim 1 , aromatic diols claim 1 , polyols claim 1 , bis-sodium alkoxides claim 1 , dicarboxylic acids claim 1 , di acid chlorides claim 1 , di siloxane halides claim 1 , di siloxane alkoxides and mixtures thereof.4. The method according to claim 2 , wherein said surface oxides are selected from the group consisting of hydroxide claim 2 , carboxylate claim 2 , lactone claim 2 , hydroxyl claim 2 , quinine claim 2 , carboxylic acid groups claim 2 , and mixtures thereof claim 2 , preferably a combination of hydroxide and carboxyl ...

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Номер записи: 85
26-04-2018 дата публикации

AUTOMATIC CONTROLLED ELECTRIC HEATING EQUIPMENT FOR PRODUCTION OF HIGH RESISTANCE PARTS

Номер: US20180116013A1
Автор: SPORTELLI Pietro
Принадлежит:

An automatic controlled electric heating device () for the production of stamped parts, by tool hardening from hot stamping of the material with specific raw material, granting greater hardness and mechanical resistance to the part, which allows the creation of lighter end products which support greater loads and impacts, consisting basically of the following parts: heating controller system (), power controller system (), power transformer (), data acquisition system (), mechanical fastening device () of the plate (P) and performance of electrical contact and expansion compensation system (). 1) An automatic controlled electric heating equipment for production of high resistant parts comprising:{'b': '2', '(a) a heating controller system (),'}{'b': '3', '(b) a power controller system (),'}{'b': '4', '(c) a power transformer (),'}{'b': '5', '(d) a data acquisition system (),'}{'b': '6', '(e) a mechanical fastening device () of a plate or part (P) and'}{'b': '7', '(f) a performance of an electrical contact and expansion compensation system ().'}223) The automatic controlled electric heating equipment according to claim 1 , wherein the heating controller system () performs closed-loop control of the heating of the part (P) claim 1 , receiving signals from the temperature sensor (St) (thermocouple claim 1 , thermal camera claim 1 , etc.) and acting on the power controller ().334) The automatic controlled electric heating equipment according to claim 1 , wherein the power controller system () supplies the power transformer () with the energy required during heating.443) The automatic controlled electric heating equipment according to claim 1 , wherein the power transformer () converts the voltage and current values supplied by the power controller system () claim 1 , for the levels applied directly on the plate (P) claim 1 , from an established transformation ratio.552) The automatic controlled electric heating equipment according to claim 1 , wherein the data ...

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Номер записи: 86
24-07-2014 дата публикации

System and method for induction heating a helical rotor using a coil

Номер: US20140203011A1
Автор: James Coulas, Robert A.R. Mills
Принадлежит: Kudu Industries Inc

Embodiments of the invention provide a system and method for induction heating a helical rotor of a progressing cavity pump in order to reduce the surface roughness of the rotor. In order to heat the rotor most evenly, it is desired to space the coil as closely around the rotor as possible. The invention provides a mechanism for threading the helical rotor through an induction coil having an interior diameter which is less than the major diameter of the rotor. The induction coil may include one loop and overlapping ends. The rotor to be heated is rotated about its longitudinal axis and advanced axially through the coil as it rotates. The axial speed and rotational speed are synchronized so that the rotor moves one pitch through the coil for each complete rotation.

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Номер записи: 87
25-04-2019 дата публикации

Method and Furnace Installation for Heat Treating Metal Strip

Номер: US20190119777A1
Автор: Blake Eric, Borrel Pierre-Jerome
Принадлежит:

A method for heat-treating a metal strip, where the metal strip is pre-heated continuously in a pre-heating zone with the aid of hot gas and subsequently undergoes further heat treatment in a directly fired furnace in a reducing and/or oxidizing atmosphere. The metal strip is pre-heated in the pre-heating zone with hot inert gas and further heated with an electric heating system before entering the directly fired furnace. A furnace plant for implementing the process and a related heat recovery system are also disclosed. 19-. (canceled)101. A method for treating a metal strip () , comprising:{'b': 1', '6', '3, '(a) pre-heating the metal strip () with a hot gas () in a pre-heating zone () to reach a pre-heated metal strip;'}{'b': 8', '8', '11, '(b) further heating the pre-heated metal strip after step (a) in a directly fired furnace () in one or more of a reducing atmosphere and an oxidizing atmosphere, the directly fired furnace () generating exhaust gases (), wherein'}{'b': 1', '6', '3', '5', '8', '11', '8', '6', '3, 'the metal strip () is pre-heated with the aid of inert gas () in the pre-heating zone () of step (a) and further heated by an electric heating system () before it enters the directly heated furnace () in step (b), where heat in the exhaust gases () from the directly fired furnace () is used to pre-heat the inert gas () for the pre-heating zone ().'}11. The method of claim 10 , wherein the electric heating system is an induction heating system.1213. The method of claim 10 , wherein the metal strip () is heated to more than 200° C. in the inert gas atmosphere in the pre-heating zone ().1313. The method of claim 12 , wherein the metal strip () is heated to up to approximately 300° C. in the inert gas atmosphere in the pre-heating zone ().141. The method of claim 12 , wherein the metal strip () is heated to more than approximately 350° C. by the electric heating system.151. The method of claim 14 , wherein the metal strip () is heated to more than ...

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Номер записи: 88
03-05-2018 дата публикации

CURRENT APPLYING APPARATUS, CURRENT APPLYING METHOD AND DIRECT RESISTANCE HEATING APPARATUS

Номер: US20180124872A1
Автор: Kobayashi Kunihiro, Ooyama Hironori
Принадлежит:

A current applying apparatus includes a pair of electrodes configured to contact a workpiece to apply an electric current to the workpiece, and a bus bar arranged to extend along the workpiece. At least one of the electrodes includes a moving electrode configured to move relative to the bus bar and the workpiece such that an electric current flows between the bus bar and the workpiece through the moving electrode, the moving electrode being connected to the bus bar so as to be movable relative to the bus bar, and the moving electrode being configured to contact the workpiece so as to be movable relative to the workpiece. 1. A current applying apparatus comprising:a pair of electrodes configured to contact a workpiece to apply an electric current to the workpiece; anda bus bar having a surface arranged to extend along the workpiece,wherein at least one of the electrodes comprises a moving electrode configured to move relative to the bus bar and the workpiece such that an electric current flows between the bus bar and the workpiece through the moving electrode, the moving electrode being connected to the bus bar so as to be movable relative to the bus bar, and the moving electrode being configured to contact the workpiece so as to be movable relative to the workpiece,wherein the current applying apparatus further comprises an electrically-conductive brush provided on the surface of the bus bar facing toward the workpiece, andwherein the moving electrode is arranged to move in sliding contact with the electrically-conductive brush.2. The current applying apparatus according to claim 1 , wherein the moving electrode is arranged between the bus bar and the workpiece.3. The current applying apparatus according to claim 1 , wherein the moving electrode comprises a current-applying roller configured to roll on a surface of the workpiece claim 1 , and the current-applying roller comprising an electrically-conductive peripheral surface from which the electric current is ...

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Номер записи: 89
31-07-2014 дата публикации

ELECTRIC HEATING DEVICE

Номер: US20140209597A1
Автор: Matsumoto Shinichiroh
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

Disclosed is an electric heating device capable of uniformly applying an electric current to a workpiece without causing abrasion of electrodes. An electric heating device includes a pair of electrodes for applying an electric current to a workpiece, and a pair of clamps for fixing the workpiece. The electrode extends along the surface of the workpiece in a direction perpendicular to an electric current direction while maintaining a constant length in the electric current direction, and sandwiches the workpiece therein. The clamp is arranged in the vicinity of the electrode, and sandwiches a part of the workpiece other than a part to be heated therein. A pressure at which the clamp sandwiches the workpiece therein is higher than a pressure at which the electrode sandwiches the workpiece therein. 1. An electric heating device for applying an electric current to a plate-like workpiece having two flat surfaces parallel to each other to heat the workpiece , comprising:a pair of electrodes for applying the electric current to the workpiece, which is arranged at a predetermined interval in an electric current direction in which the electric current is applied to the workpiece; anda pair of clamps for fixing the workpiece,wherein each of the electrodes extends along the two surfaces of the workpiece in a direction perpendicular to the electric current direction while maintaining a constant length in the electric current direction, and sandwiches the workpiece therein so as to press the two surfaces of the workpiece,wherein each of the clamps is arranged in a vicinity of each of the electrodes, and sandwiches a part of the workpiece other than a part to be heated therein so as to press the two surfaces of the workpiece, andwherein a pressure at which each of the clamps sandwiches the workpiece therein is higher than a pressure at which each of the electrodes sandwiches the workpiece therein.2. The electric heating device according to claim 1 ,wherein the pressure at which ...

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Номер записи: 90
04-05-2017 дата публикации

Transverse flux induction heating device

Номер: US20170127482A1
Автор: Kenji Umetsu, Toshiya Takechi, Tsutomu Ueki, Yasuhiro Mayumi
Принадлежит: Nippon Steel and Sumitomo Metal Corp

The transverse flux induction heating device allows an alternating magnetic field to intersect the sheet face of a conductive sheet which is conveyed in one direction, thereby inductively heating the conductive sheet. The transverse flux induction heating device includes a heating coil disposed such that a coil face faces the sheet face of the conductive sheet; a core around which the heating coil is coiled; and a shielding plate formed of a conductor and disposed between the core and a side end portion in a direction perpendicular to the conveyance direction of the conductive sheet, wherein the shielding plate has a protruded portion, and the side surface of the protruded portion represents a closed loop when viewed from a direction perpendicular to the coil face.

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Номер записи: 91
21-05-2015 дата публикации

APPARATUS TO QUENCH A RING-SHAPED ARTICLE

Номер: US20150137434A1
Автор: KAMO Kunio
Принадлежит: NTN CORPORATION

An apparatus for quenching a ring shaped article includes a heating station for heating the ring shaped article to a quenching temperature; a primary cooling station for cooling the ring shaped article to a deformation correction initiating temperature; and a secondary cooling station for cooling the ring shaped article down to a temperature lower than a martensitic transformation point. The heating station includes a preheating station for heating by induction heating the ring shaped article to a predetermined preheating temperature near to the quenching temperature and a soaking station for heating the ring shaped article, which has been heated to the preheating temperature by the preheating station, to the quenching temperature within a continuous heating furnace. The preheating station includes a rotary table and a heating coil arranged to straddle between inner and outer peripheral surfaces of the ring shaped article. 1a heating station for heating the ring shaped article to a quenching temperature;a primary cooling station for cooling the ring shaped article, which has been heated to the quenching temperature by the heating station, down to a deformation correction initiating temperature, which is higher than a martensitic transformation point; anda secondary cooling station for cooling the ring shaped article, which has been cooled down to the deformation correction initiating temperature by the primary cooling station, down to a temperature lower than the martensitic transformation point by, while a pair of receiving rolls are held in contact with an outer peripheral surface of such ring shaped article for rolling motion about an axis of rotation, which is parallel to a center of the ring shaped article, pressing a press roll, rotatable about an axis of rotation parallel to the center of the ring shaped article, against the ring shaped article from one side of the ring shaped article opposite to a point intermediate between the receiving rolls,wherein the ...

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Номер записи: 92
01-09-2022 дата публикации

HARDFACED METAL SURFACE AND METHOD OF MANUFACTURE

Номер: US20220275698A1
Автор: BAKER Brian, Gamble Jamie Clay, Incavo Joseph, Larson Eric, Miller William, Newbury Melissa, Reinmuller Mark, Singh Daya
Принадлежит: Hydril USA Distribution LLC

An apparatus is disclosed as including a first material volume with at least a hardened portion and a second material volume that includes at least two layers. The first material volume is composed of at least a hardenable alloy of steel. The at least two layers is located adjacent to a first surface comprising the hardened portion of the first material volume. The at least two layers includes a first layer composed of at least a ductile low-carbon alloy of steel and a second layer composed of at least a cobalt-based hardfacing over the first layer. The apparatus is applicable in preparing shear ram blocks and shear ram blades to provide a hardened blade edge with an adjacent hardfacing surface. 1. A shear ram blade comprising:a material volume comprising a hardenable alloy of steel as a base of the shear ram blade and comprising a heat-treated portion of the hardenable alloy of steel as an edge of the shear ram blade, the heat-treated portion of a different hardness than the base.2. The shear ram blade of claim 1 , further comprising:at least two layers to form an overlay located adjacent to a surface of the heat-treated portion.3. The shear ram blade of claim 2 , further comprising:at least a low-carbon alloy of steel forming a first of the at least two layers and a cobalt-based hardfacing over the first of the at least two layers to form a second of the at least two layers.4. The shear ram blade of claim 1 , further comprising:CrMoV Steel, NiCrMo Steel, or CrNiMo Steel as the material volume.5. The shear ram blade of claim 1 , further comprising:the heat-treated portion formed from an induction hardening process applied to the hardenable alloy of steel.6. The shear ram blade of claim 1 , further comprising:a transition zone formed adjacent to the heat-treated portion and in the material volume.7. A blow-out preventer (BOP) stack assembly comprising:a shear ram housing comprising at least one upper ram shear block, at least one lower ram shear block, and at least ...

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Номер записи: 93
19-05-2016 дата публикации

HEATING METHOD, HEATING APPARATUS, AND HOT PRESS MOLDING METHOD FOR PLATE WORKPIECE

Номер: US20160136712A1
Автор: Ikuta Fumiaki, Ooyama Hironori
Принадлежит: NETUREN CO., LTD.

A heating method, a heating apparatus, and a hot press holding method for a plate workpiece are provided. The plate workpiece has a first region and a second region. A cross sectional area of the first region in a widthwise direction of the plate workpiece is substantially uniform along a longitudinal direction of the plate workpiece or is monotonically increased or decreased along the longitudinal direction. The second region is adjoining a portion of the first region in a monolithic manner. The method includes heating the second region, and heating at least the first region by direct resistance heating along the longitudinal direction. The second region is heated before heating the first region such that the first region and the second region are heated to be in a given temperature range.

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Номер записи: 94
19-05-2016 дата публикации

HEATING APPARATUS, HEAT TREATMENT APPARATUS, AND HEATING METHOD

Номер: US20160138121A1
Автор: NAKATSU Hitoshi, WATANABE Hisaaki
Принадлежит:

A heating apparatus, a heat treatment apparatus, and a heating method are provided. The heating apparatus includes a workpiece support on which a ring-shaped workpiece is placed, a rotary drive assembly, and a heater configured to heat the workpiece. The workpiece support includes a plurality of rotating rollers arranged in a circumferential direction. The rotary drive assembly is configured to rotate the plurality of rotating rollers to rotate the workpiece placed on the workpiece support along a ring shape of the workpiece. The heater includes a heating coil configured to induction-heat the workpiece on the workpiece support at a heating position, and an actuator configured to move the heating coil at the heating position relative to the workpiece to adjust a distance between the workpiece and the heating coil. 113-. (canceled)14. A heating method comprising:placing a ring-shaped workpiece on a plurality of rotating rollers arranged in a circumferential direction;setting the workpiece at a heating position to face a heating coil;moving the heating coil to adjust a position of the heating coil relative to the workpiece;rotating the rotating rollers to rotate the workpiece along a ring shape of the workpiece; andinduction-heating the workpiece.15. The heating method according to claim 14 , wherein the rotating rollers are connected to a central structure unit and arranged in the circumferential direction around the central structure unit claim 14 , and the workpiece is placed on the rotating rollers such that the workpiece surrounds the central structure unit claim 14 , the method further comprising:after the placing is carried out in a loading section, conveying the workpiece together with the rotating rollers from the loading section to a heating section, in which the heating coil is provided, such that central structure unit is suspended. The present application claims priority from Japanese Patent Applications No. 2011-057309 filed on Mar. 15, 2011, and No. 2011 ...

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Номер записи: 95
19-05-2016 дата публикации

HEATING APPARATUS, HEAT TREATMENT APPARATUS, AND HEATING METHOD

Номер: US20160138124A1
Автор: NAKATSU Hitoshi, WATANABE Hisaaki
Принадлежит:

A heating apparatus, a heat treatment apparatus, and a heating method are provided. The heating apparatus includes a workpiece support on which a ring-shaped workpiece is placed, a rotary drive assembly, and a heater configured to heat the workpiece. The workpiece support includes a plurality of rotating rollers arranged in a circumferential direction. The rotary drive assembly is configured to rotate the plurality of rotating rollers to rotate the workpiece placed on the workpiece support along a ring shape of the workpiece. The heater includes a heating coil configured to induction-heat the workpiece on the workpiece support at a heating position, and an actuator configured to move the heating coil at the heating position relative to the workpiece to adjust a distance between the workpiece and the heating coil. 115-. (canceled)16. A jig of a heating apparatus , the jig being configured to support a ring-shaped workpiece when conveying and heating the workpiece , the jig comprising:a central structure unit;a rotary drive mechanism accommodated in the central structure unit; anda workpiece support connected to the central structure unit and configured such that the workpiece is placed on the workpiece support to surround the central structure unit,wherein the workpiece support comprises a plurality of rotating rollers arranged in a circumferential direction around the central structure unit,wherein the central structure unit comprises:a conveyor connecting portion configured to suspend the workpiece support together with the workpiece placed on the workpiece support; anda driver connecting portion from which a driving force is input to the rotary drive mechanism, andwherein the rotary drive mechanism is configured to rotate the rotating rollers by the driving force to rotate the workpiece along a ring shape of the workpiece.17. The jig according to claim 16 , wherein the driver connecting portion is disposed above the workpiece supported on the workpiece support.18. ...

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Номер записи: 96
18-05-2017 дата публикации

STRUCTURAL MEMBER FOR AUTOMOBILE BODY

Номер: US20170137062A1
Автор: Tomizawa Atsushi, Uematsu Kazuo, YOSHIDA Michitaka
Принадлежит: NIPPON STEEL & SUMITOMO METAL CORPORATION

A deformed part in a case in which the application of a collision load causes bending deformation in a structural member for an automobile body having a hardness distribution (strength distribution) composed of a quenched part, a base metal hardness part, and a transition part in a longitudinal direction is used as the base metal hardness part to avoid plastic strain concentration in the quenched part. 1. A structural member for an automobile body comprising:a hollow steel main body having a closed cross section, a quenched part subjected to quenching;', 'a base metal hardness part having a same hardness as a hardness of a base metal; and', 'a transition part provided between the quenched part and the base metal hardness part in the axial direction, a strength of the transition part changing from a strength of the base metal harness part to a strength of the quenched part;, 'the hollow steel main body having, in an axial direction {'br': None, 'sup': −1', '−1, 'i': 'LA/I≦', '0.006 (mm)<0.2 (mm) \u2003\u2003(1).'}, 'in a case in which a cross-sectional area of the main body is A and a moment of inertia of area of the main body is I, a length L of the transition part in the axial direction satisfies the relationship of the following equation (1)2. The structural member for an automobile body according to claim 1 , wherein a tensile strength of the base metal hardness part is 700 MPa or less claim 1 , and a tensile strength of the quenched part is 1470 MPa or more.3. The structural member for an automobile body according to claim 1 ,wherein respective hardness distributions of the quenched part, the base metal hardness part, and the transition part in the vertical cross section to the axial direction are substantially constant.4. The structural member for an automobile body according to claim 1 , further comprising:a to-be welded part which is provided in the base metal hardness part or the transition part and is to be welded to another structural member for an ...

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Номер записи: 97
09-05-2019 дата публикации

HIGHLY ALLOYED STAINLESS STEEL FORGINGS MADE WITHOUT SOLUTION ANNEAL

Номер: US20190136335A1
Автор: Schiroky Gerhard H.
Принадлежит:

The post-forging solution anneal step normally carried out on hot forgings made from highly alloyed metals can be eliminated while still avoiding the formation of deleterious intermetallic phases by adopting a number separate features in connection with the way the forging is made. 1. In a continuous , automatic process for making multiple hot forgings in series from multiple billets made from a highly-alloyed metal , the improvement wherein the hot forgings are made without subjecting these hot forgings to post-forging solution anneal.2. The process of claim 1 , wherein only those billets which are essentially free of deleterious intermetallic phases are selected as the billets to be forged.3. The process of claim 1 , wherein the hot forgings are made by a forging process including a heating step in which the billets are heated by means of resistance or induction heating from below the critical temperature range of the highly-alloyed metal to a forging temperature above this critical temperature range.4. The process of claim 3 , wherein the heating step is carried out by (a) automatically discharging to waste any billet whose heating rate fails to achieve a predetermined minimum.5. The process of claim 4 , wherein the heating step is further carried out by (b) automatically discharging to waste any billet whose temperature at the end of this step is below a predetermined minimum or above a predetermined maximum.6. The process of claim 4 , wherein the heating step is further carried out by (c) automatically discharging to waste any billet in which the difference between the measured temperature of the side wall of the billet at the end of this step and the measured temperature of the front or rear face of the billet at the end of this step exceeds a predetermined maximum.7. The process of claim 4 , wherein the heating step is further carried out by (d) heating the billet above its critical temperature range long enough to redissolve any intermetallic phases that may ...

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Номер записи: 98
09-05-2019 дата публикации

ADJUSTABLE SPACER WITH HARDENED ENDS

Номер: US20190136911A1
Автор: Rode John E.
Принадлежит: TEMPER CORPORATION

An adjustable spacer with hardened end portions and a non-hardened intermediate portion therebetween is mountable between a pair of roller bearings also mounted on a shaft such an axle or spindle or the like. The hardened material contacts the faces of the roller bearings but helps prevent wear therebetween and unwanted movement of the bearings on the shaft. The unhardened material allows the spacer to collapse in the axial direction to maintain desired axial loads on the bearings. 1. An adjustable spacer system comprising:an annular spacer configured to be mounted on a shaft to apply a force to one or more roller bearings mounted on said shaft, the annular spacer comprising a first end portion and a second end portion opposite said first end portion, the first end portion and the second end portion of said annular spacer comprising a hardened material; andan intermediate portion of said annular spacer located between said first end portion and said second end portion, said intermediate portion comprising a non-hardened material, the intermediate portion being more deformable than that first end portion.2. The system of wherein said annular spacer is configured to be assembled on a shaft between two roller bearings to apply a force axially on said two roller bearings.3. The system of wherein the first end portion comprises a first face exposed in an axial direction claim 2 , the first face being formed of a hardened material.4. The system of wherein the second end portion comprises a second face exposed in an axial direction claim 3 , the second face being formed of a hardened material.5. The system of wherein said annular spacer is formed from a first starting material and wherein the first end portion and second end portion are hardened from said first starting material.6. The system of wherein said first end portion and second end portion are hardened without hardening the intermediate portion of said annular spacer.7. The system of wherein the intermediate ...

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Номер записи: 99
25-05-2017 дата публикации

High Strength Iron-Based Alloys, Processes for Making Same, and Articles Resulting Therefrom

Номер: US20170145528A1
Автор: COLA, JR. Gary M.
Принадлежит:

A new iron based alloy prepared by extremely rapid heating followed substantially immediately by extremely rapid cooling. Methods and materials made by optionally initially spheroidized annealing of raw iron based alloys into a precursor material are disclosed. After optional spheroidized annealing, the precursor material is rapidly heated to a temperature above the austenitizing temperature of the material and rapidly cooled to yield a high strength iron based alloy. Methods and materials for realizing a corrosion resistant high strength iron based alloy are disclosed, as are methods, materials and articles which exhibit the ability to form bend radii of nearly folding over itself. 1. A method to produce an advanced high strength steel in excess of 900 megapascals from plain carbon, or minimally alloyed steel which is capable of bend radii less of less than two material thickness. This application claims the benefit of priority of the following Provisional Patent Applications: Appln. No. 62/013,396, filed Jun. 17, 2014, Appln. No. 62/093,731, filed Dec. 18, 2014 and Appln. No. 62/100,373, filed Jan. 6, 2015.Not ApplicableNot ApplicableU.S. patent application Ser. No. 14/404,007, filed Nov. 25, 2014U.S. Pat. No. 8,480,824 B2, Issued Jul. 9, 2013U.S. patent application Ser. No. 12/485,785, filed Jun. 16, 2009U.S. patent application Ser. No. 12/444,242, filed Apr. 3, 2009This invention relates to advanced high strength iron-based alloys, and more particularly relates to processes for transforming and/or shaping the same. Such alloys are capable of being formed to minimal bend radii and can be obtained by treating low, medium, and high carbon steel. Such iron based alloys can also be designed to be corrosion resistant by phosphoric alloying while avoiding grain boundary embrittlement.Traditionally, metallurgists have wanted to take low quality metals, such as low carbon steel, and turn them into high quality steels and more desirable products through inexpensive ...

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Номер записи: 100