СПОСОБ НАНЕСЕНИЯ ЭЛЕКТРОЭРОЗИОННОСТОЙКИХ ПОКРЫТИЙ СИСТЕМЫ Mo-C-Ag-N НА МЕДНЫЕ ЭЛЕКТРИЧЕСКИЕ КОНТАКТЫ

FIELD: electrical contacts coatings. SUBSTANCE: invention relates to the formation of coatings on copper electrical contacts, which can be used in electrical engineering as electrical erosion-resistant coatings. The method includes an electric explosion of a three-layer composite electrically exploded conductor, one of the layers of which consists of silver foil weighing 60-360 mg, the second layer is made of molybdenum foil equal to 0.5-2.0 mass of the first layer, and the third layer is made of carbon-graphite fiber equal to 0.5-1.0 of the mass of the first layer, formation of a pulsed multiphase plasma jet from explosion products, melting of the surface of a copper electrical contact with it at an absorbed power density of 4.5-6.5 GW/m 2 , deposition of explosion products on the surface and formation of a coating of the Mo-C-Ag system on it, nitriding for 3-5 hours at a temperature of 500-600°C and subsequent pulse-periodic electron-beam treatment of the coating surface at an absorbed energy density of 40-60 J/cm 2 , pulse duration 150-200 mcs and the number of 10-30 pulses. EFFECT: invention is aimed at obtaining coatings with high electrical conductivity, electrical erosion resistance and adhesion to the substrate at the level of cohesion. 1 cl, 2 ex, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 768 808 C1 (51) МПК C23C 4/067 (2016.01) C23C 4/134 (2016.01) H01H 1/021 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C23C 4/134 (2022.02); C23C 4/067 (2022.02); H01H 1/021 (2022.02) (21)(22) Заявка: 2021131736, 28.10.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 24.03.2022 2 7 6 8 8 0 8 R U Адрес для переписки: 654007, Кемеровская обл. - Кузбасс, г. Новокузнецк, Центральный р-н, ул. Кирова, зд. 42, ФГБОУ ВО "Сибирский государственный индустриальный университет", ведущему специалисту по защите интеллектуальной собственности Володиной О.Ф. (56) Список документов, цитированных в ...

СПОСОБ ИЗГОТОВЛЕНИЯ ЭЛЕКТРИЧЕСКИХ КОНТАКТОВ ИЗ МЕЛКОЗЕРНИСТОГО ПЛОТНОГО ГРАФИТА, ПРОПИТАННЫХ СЕРЕБРОМ И КАДМИЕМ, ЭЛЕКТРИЧЕСКИЙ КОНТАКТ, ЭЛЕКТРОМАГНИТНОЕ РЕЛЕ

Изобретение относится к области электротехники, а именно к способу изготовления электрических контактов из плотного мелкозернистого графита, пропитанного серебром, а также к электромагнитному реле с такими контактами, и может быть использовано в электромеханических реле первого класса для устройств сигнализации, централизации и блокировки (СЦБ) на железнодорожном транспорте. Повышение надежности и ресурса работы электромеханического реле является техническим результатом, который обеспечивается тем, что контакты изготавливают из мелкозернистого плотного графита с удельным электрическим сопротивлением не более 16 мкОм⋅м, прочностью на сжатие не менее 60 МПа, зольностью не более 0,01% и объемной пористостью 20-29%, которые пропитывают водными растворами солей металлов в вакууме, после чего пропитанные контакты прокаливают при высоких температурах. Контакты выполнены в виде тела вращения, ограниченного боковой поверхностью с образующей, состоящей из прямолинейных и/или криволинейных отрезков ...

ДУГОГАСИТЕЛЬНАЯ ПЛАСТИНА ДЛЯ ДУГОГАСИТЕЛЬНОЙ КАМЕРЫ

... 1. Дугогасительная пластина с покрытием, выполненная из листа ферромагнитного материала, применяющаяся в дугогасительной камере, отличающаяся тем, что указанная дугогасительная пластина содержит слой композитного материала, состоящего из по меньшей мере двух компонентов, из которых первый компонент электропроводящий, имеет точку плавления не выше точки плавления ферромагнитного материала, и точку кипения, не выше точки кипения ферромагнитного материала, а второй компонент имеет точку плавления, выше точки плавления первого компонента, и точку кипения выше точки кипения первого компонента. 2. Дугогасительная пластина по п.1, отличающаяся тем, что точка плавления второго компонента выше точки плавления ферромагнитного материала, и что точка кипения второго компонента выше точки кипения ферромагнитного материала. 3. Дугогасительная пластина по п.1, отличающаяся тем, что точка плавления второго компонента выше точки кипения первого компонента. 4. Дугогасительная пластина по любому из пп.1-3 ...

USE OF NICKEL-PALLADIUM SINTERED MATERIAL FOR ELECTRICAL RELAY CONTACTS

Heavy current-breaker switch contact material

The contact material for a breaker contact (1) is provided by a dual phase metal mixture, with one phase provided by an electrically conductive hard material and the other phase provided by an anorganic metallic or non- metallic compound. The electrically conductive hard material can be provided by a non- stoichiometric compound of boron, carbon or nitrogen and a transition metal selected from the fourth, fifth, or sixth group of the periodic table.

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON AUS IM WESENTLICHEN SPHÄRISCHEN PARTIKELN GEBILDETEN PULVERN

ELEKTRISCHE KONTAKTANORDNUNG FUER EINE TASTSONDE

METALLIC COMPOSITE MATERIAL AND METHOD FOR PRODUCING THE SAME

... 1473210 Making composite wire or rod G RAU 10 Oct 1974 [12 Oct 1973] 44019/74 Heading B3A [Also in Division C7] A wire or rod metallic composite comprising a matrix metal with a powder additive distributed as separate cords extending along the length may be made by filling a matrix metal pipe with additive powder, reducing the diameter by mechanical forming, e.g. hammering and annealing and then bundling a number of the assemblies together and mechanically forming the bundle into a wire or rod of reduced diameter. The additive powders may be CdO, SnO 2 , Al 2 O 3 , MgO, CaO, ZrO 2 , PbO, Nb-Ti, W, Mo, carbides, nitrides, borides, graphite, glass and organic material. The matrix metal may be Ag, Cu or their alloys. The powder filled metal pipes, e.g. Ag-CdO 0À3 mm. diameter, formed by hammering, drawing and intermediate annealing were bundled in a Ag tube 20 mm. diameter and drawn to a 2 mm. diameter wire, the powdered CdO cords forming 10% wt. The wider Ag tube may be removed after drawing ...

Corrosion Resistant Electric Contacts

... 1,151,664. Two-part couplings. BURNDY CORP. 6 Dec., 1967 [8 Dec., 1966], No. 55454/67. Heading H2E. [Also in Divisions C7 and D1] Pin-and-socket contact elements 22a and 20 have a porous electroplated coating of gold or rhodium impregnated with an N-alkyl or N- alkoyl aminocarboxylic acid or salt to resist corrosion. The impregnant may be N-lauroyl, N-oleoyl, or N-stearoyl sarcosine, N-lauryl iminoacetic acid, or N-lauryl beta-iminopropionic acid. The salt may be of sodium, potassium, lithium, or tolyl triethanolamine. The impregnant may be employed as a 0À1-10% solution. The solvent may be water or trichloroethane. The element substrate may be of copper, nickel, or nickel on copper. Contact 20, which comprises a socket 21, 22 at either end, is retained in a bore 11 in an insulating block 10 by means of a resilient retainer member 13 which is snap-fitted in the bore before the contact is inserted therein.

CONTACT ARRANGEMENT FOR CONNECTING ELECTRICAL APPLIANCES OR ASSEMBLIES

... 1324926 Switch contacts LICENTIA PATENT-VERWALTUNGS-GmbH 5 Nov 1971 [7 Nov 1970] 51570/71 Heading H1N At least one element (preferably both) of an electrical plug-and-socket type contact arrangement or connector (the Figure) is formed of a trimmed extruded profile of aluminium or aluminium alloy which may be plated electrolytically with tin or silver. The alloy may be of the composition E-AlMgSi 0À5 (German Standards Specification No. DIN 1725). The blade 1 and socket 2 may have cooling fins, 4 and 5, respectively, and contact lugs 3 may be provided on the socket.

A process for making a material suitable for use in producing shaped sintered parts

Metal powders or mixtures of a metal and a metal compound or a metal and a metalloid are granulated to improve their flow properti s by heating the powder above the melting temperature of the lowest melting component followed by crushing the sintered compact to form granules which have a lower density than the optimum pressed density necessary to attain the maximum sintered density. The powder mixture may be in the loose state, lightly packed or compacted prior to the heating step which is preferably effected at a temperature which is 0.4 to 0.7 times the absolute melting temperature of the highest melting component of the mixture. The following examples are given: (a) a mixture of 90% Ag/10% Pb is heated at 360 DEG C. in hydrogen and then crushed and screened to give a 70% recovery of 0.06-0.3 mm. granules; (b) an 85% Ag/10% Ni/5% Cd mixture, either loose powder or compacted, is heated at 490 DEG C. or 430 DEG C. in hydrogen and crushed and screened.

VERBUNDWERKSTOFF MIT VORZUGSWEISE NICHTMETALLISCHEN EINLAGERUNGEN UND VERFAHREN ZU SEINER HERSTELLUNG

FLEXIBLE SWITCHING MECHANISMS

PROCEDURE FOR MANUFACTURING A LIQUID METAL COMPOUND CONTACT

COMPOSITE MATERIAL WITH PREFERABLY NON-METALLIC STORAGES AND PROCEDURE FOR ITS PRODUCTION

ELECTRICAL CONTACT FOR A CADMIUM TELLURIUM COMPONENT

Made of at least two metals compound material and molded article from it as well as procedures for their production.

ELECTRICAL CONTACT COATED WITH AN AMORPHOUS TRANSITION ALLOY THE EVEN COATED WITH A GOLD FILM IS.

PROCEDURE FOR THE PRODUCTION OF ELECTRICAL CONTACT MATERIALS.

NON-MAGNETIC WOLFRAM-LEGIERUNG WITH HIGH DENSITY

CONTACT STABILIZATION COATING MATERIAL FOR ELECTRICAL CONTACTSURFACES

METHOD OF FORMING ELECTRICAL CONTACTS ON ALUMINUM PARTS

Procédé pour réaliser des dispositifs permettant d'assurer une liaison électrique par contact permettant d'établir, de maintenir ou d'interrompre des circuits électriques, par revêtement de nickel de pièces conductrices en aluminium au moyen d'une méthode électrolytique, caractérisé en ce que l'on effectue un dépôt préalable en l'absence de courant électrique d'une mince couche de nickel qui est ensuite éliminée avant le dépôt de la couche définitive de nickel. Et un dispositif permettant d'établir, de maintenir ou d'interrompre des circuits électriques.

ELECTRICAL CONTACTS WITH A REDUCED ALUMINUM SECTION

Electrical contacts with a reduced section for use in high-voltage switches, the contacts are produced by machining or by extrusion. The contacts are designed to be used outdoors, indoors, in vacuum or in any other inert atmosphere for electrical switching equipment without additional pressure system or with additional pressure system. The contacts can be used in linear movement, radial movement, or any other type of movement or sliding. The contacts can be used in various shapes, such as contact pins or tulip shapes, partial tulips, or rectangular tulips, or they can be used as the single pressure element for the electrical contact. The contacts are designed to cooperate electrically with opposing contact parts. The contacts can interrupt a physical link with an opposing contact or they can remain in constant contact during the operating movement. The contacts are made from aluminum alloys, with or without contact surfaces. A contact assembly can use the same base materials or different ...

Verfahren zur Verbesserung der Kontaktgabe von elektrischen Kontakten.

Contact électrique

Dispositif émetteur d'ions

Kontaktwerkstoff

Gutlötbarer Kontaktkörper

Procédé d'inhibition de la corrosion galvanique et ensemble résistant à la corrosion obtenu par ce procédé

Elektrisches Schaltgerät

Kontaktanordnung mit einer auf einer Unterlage aufgebrachten Schicht aus Kontaktmaterial

Verfahren zur Verbindung zweier Stoffmassen, insbesondere zweier Metallmassen, zur Bildung elektrischer Dauerkontakte

Anordnung mit wenigstens einer mindestens ein Kontakstück enthaltenden Kontaktbahn und Verfahren zur Herstellung einer solchen Anordnung

Method for producing an electrical contact material

In the electrical contact, the contact surface consists of transition metal carbides and/or transition metal nitrides. This produces a contact which manages without using noble metals, has a high melting point and good electrical conductivity. The production method consists in transition metal carbides and/or transition metal nitrides being applied by an electrophoresis process.

PROCEDURE FOR THE PRODUCTION OF A WEAK CURRENT CONTACT COATING.

Electrical contact and method for producing it

METHOD OF FABRICATING AN ELECTRICAL CONTACT, CONTACT OBTAINED ACCORDING TO SAID METHOD AND DEVICE COMPRISING SAID ELECTRICAL CONTACT.

Contact pin for high voltage power circuit breaker, the high voltage power circuit breaker with such a contact pin.

Die Erfindung betrifft ein Verfahren zum Herstellen eines Kontaktstifts für Hochspannungs-Leistungsschalter mit einem Mantel 5b aus Kupfer, welcher am einen Ende durch eine Endwand 5a aus Kupfer abgeschlossen ist, mit einem festen Kern 15, welcher von der Endwand 5a ausgehend in dem Mantel 5b steckt, ihn stützt und aus einem Material besteht, welches eine geringere Dichte als Kupfer hat, und mit einer Kontaktspitze 12, welche aussen an der Endwand 5a befestigt ist und aus einem Kupfer oder Silber enthaltenden Verbundwerkstoff besteht, welcher gegen die Einwirkung von Lichtbögen, welche beim Schalten des Hochspannungs-Leistungsschalters auftreten, widerstandsfähiger ist als Kupfer.

Flexible switching devices

Impregnated Sintered Metal Articles

CONTACT ARRANGEMENT FOR CONNECTING ELECTRICAL APPLIANCES OR ASSEMBLIES

Electric contact material with hard refractory metal substrate - and metal improving ductility or counteracting embrittlement in surface

METALLIC COMPOSITE MATERIAL AND METHOD FOR PRODUCING THE SAME

FLEXIBLE SWITCHING DEVICES

An electronic resistor user interface comprises flexible conductive materials and a flexible variably resistive element capable of exhibiting a change in electrical resistance on mechanical deformation and is characterised by textile-form electrodes (10,12), a textile form variably resistive element (14) and textile-form members (16) connective to external circuitry.

On/off loadbreak switch

CONTACT PIN FOR AN ELECTRIC SWITCH, ELECTRIC SWITCH WITH SAID TYPE OF CONTACT PIN AND METHOD FOR PRODUCING SAID TYPE OF CONTACT PIN

An embodiment of the invention relates to a contact pin for an electric switch. The contact pin is designed as a composite support.

Switching contactor

A switching electrical power contactor having a bi-blade type switch, has ferrous plates attached to the blades to increase the current carrying capacity and reduce the resistance of the switch. Flexible tangs formed at the distal end of the blades cooperate with a movable member to hold the contacts closed when the contactor is in the closed state.

ELECTRIC CONTACT AND FABRICATION METHOD THEREOF

The present invention discloses an electric contact, comprising a substrate with the surface thereof coated with a nano-diamond film heavily doped with positive trivalent or positive pentavalent elements; the present invention discloses a fabrication method of the above electric contact, comprising the following steps of: (1) fabricating a substrate of the electric contact; (2) performing auxiliary nucleation processing on the electric contact substrate; (3) depositing a nano-diamond film heavily doped with positive trivalent or positive pentavalent elements on the surface of the electric contact substrate. The present invention applies a heavily doped nano-diamond film in an electric contact such that the electric contact has super high heat conductivity, super high frictional wear resistance, high electrical conductivity, high breakdown voltage, high arc ablation resistance and fusion welding resistance, and at the same time, further has an advantage of simple processes, which greatly reduces production cost.

СПОСОБ ИЗГОТОВЛЕНИЯ ЖИДКОМЕТАЛЛИЧЕСКОГО КОМПОЗИЦИОННОГО КОНТАКТА

Изобретение относится к электротехнике, а именно к электроаппаратостроению, в частности к способам изготовления жидко-металлических композиционных контактов, применяемых в коммутационных аппаратах, преимущественно силовых электросетей, в том числе в вакуумных коммутационных аппаратах. Способ включает пропитку пористого каркаса из тугоплавкого металла в вакуумной печи в среде гидридного водорода тремя металлами: оловом /Sn/, индием /In/ и галлием /Ga/ в три последовательные стадии продолжительностью 10-20 минут каждая, а именно на первой стадии выполняют пропитку каркаса жидким оловом /Sn/ при температуре 750-1150°С, на второй - жидким индием /In/ при температуре 750-1000°С, на третьей - жидким галлием /Ga/ при температуре 700-900°С, а количество жидких олова /Sn/, индия /In/ и галлия /Ga/ выбирают пропорциональным составу эвтектики и объему пор каркаса. Техническим результатом изобретения является увеличение пропитываемости пористого каркаса из тугоплавкого металла легкоплавким металлом ...

KONTAKTELEMENT

ELEKTRISCHES KONTAKTSTUECK FUER SCHWACHSTROMKONTAKTE IN KORROSIVER ATMOSPHAERE

Kontaktstück für einen elektrischen Schalter, elektrischer Schalter mit solch einem Kontaktstück und Verfahren zum Herstellen eines solchen Kontaktstückes

Es wird ein Kontaktstück für einen elektrischen Schalter offenbart, wobei das Kontaktstück als Kompositauflage ausgebildet ist.

Löschblech für eine Lichtbogen-Löschkammer

Beschrieben wird ein beschichtetes Löschblech aus einem ferromagnetischen Werkstoff zur Verwendung in einer Lichtbogen-Löschkammer. Erfindungsgemäß ist vorgesehen, dass das Löschblech eine Schicht aus einem Verbundmaterial aus mindestens zwei Bestandteilen aufweist, von denen der erste Bestandteil elektrisch leitfähig ist, einen Schmelzpunkt hat, der nicht über dem Schmelzpunkt des ferromagnetischen Werkstoffes liegt, und einen Verdampfungspunkt hat, der nicht über dem Verdampfungspunkt des ferromagnetischen Werkstoffes liegt, und von denen der zweite Bestandteil einen Schmelzpunkt hat, welcher über dem Schmelzpunkt des ersten Bestandteils liegt, und einen Verdampfungspunkt hat, welcher über dem Verdampfungspunkt des ersten Bestandteils liegt.

Method of Producing the Contacts of Contact Brealers of Magnetos for Firing Internal Combustion Engines.

... 106,397. Rignon, G. A. Sept. 18, 1916. Contacts.-The contacts of magnetos are formed of tungsten, molybdenum, or other metal of the iron group electro-thermally welded to a suitable support and coated on its surfaces except at the contact points with a metal of high conductivity such as copper or silver.

A process of granulation of a powder having insufficient fluidity for use in a subsequent powder-metallurgical process

Metal powders or mixtures of a metal and a metal compound or a metal and a metalloid are granulated to improve their flow properties by heating the powder to a temperature of 0.4 to 0.65 times the absolute melting temperature of the lowest melting component of the mixture followed by crushing the lightly sintered compact to form granules which have a lower density than the optimum pressed density necessary to attain the maximum sintered density. The initial powder mixture may be compacted to a packing degree between that of the loose powder and that of the optimum pressed density. Examples are given of the production of granulated mixtures of the following: (a) 90% Ag/10% Ni the loose powder being heated to 450 DEG C. or pressed at 5 tons/sq.cm. and then heated at 350 DEG C. to form granules of 0.06 mm. -0.3 mm. (b) 70% W/25% Cu/5% Ni pressed and heated at 600 DEG C. (c) 95% W/5% Ni pressed and heated at 800 DEG C.

Improvements in electrical make-and-break contacts and method of making same

In the manufacture of metallic make-and-break contacts made of tungsten or molybdenum and adapted for ignition systems in motor vehicles, the material is treated so as to increase the size of the surface granules or to reduce the amount of amorphous material between the granules, such treatment consisting in heating the tungsten &c., with a compound of silicon, such as sodium silicate, which is reduced to oxide of silicon by the heat. The metal is then mechanically worked to form a body having an interlocked grain structure. In a preferred process a mixture of oxide of tungsten with 0.5 per cent of sodium silicate is fired in a silica crucible for about an hour at a temperature of 1100 DEG C. and then re-heated for a longer period in a reducing atmosphere of hydrogen at a temperature increasing from about 400 DEG C. to 900 DEG C. The mixture is removed from the reduction furnace and, after sieving, pressed into slugs under considerable pressure; the slugs are then baked in a non-oxidizing ...

A switch

A switch comprising one or more contacts, wherein at least one of said contacts is coated with a composition that comprises one or more halo-hydrocarbon polymers at a thickness of from 1 nm to 2 µm. The switch may be of use in keypads or mobile telephones, safety switches or alarm systems etc.

HEAVY CURRENT SWITCHING APPARATUS

... 1496594 Heavy current switches HOOKER CHEMICALS & PLASTICS CORP 18 July 1975 [1 Aug 1974] 30227/75 Heading H1N Auxiliary arcing contacts for heavy current switches comprise a fixed arcing contact, Fig. 4, which consists of a region 40 of electrically conductive material and a tip region 41 of electrically resistant material, and a movable arcing contact, Fig. 5, comprising a plurality of copper-silver alloy laminae 28, separated by a tension lamina 29 and backed by a spring steel lamina 30 and slotted to form multiple contact fingers 35 each group of laminae having a metal tip 36 resistant to pitting, the contacts being arranged on the main contacts in a switch so that during switch closure the tips of the arcing contacts make first and during switch opening they break last. The fixed arcing contact may also have a surface region 42 which is less resistant than the tip 41 but more resistant than the conductive region 40. The materials used for the metal tips 36 of the laminae are tungsten ...

A METHOD OF IMPROVING AN ELECTRICALLY CONDUCTIVE CONNECTION

... 1,261,249. Electric couplings. E. BEER. 16 May, 1969 [17 May, 1968], No. 25197/69. Heading H2E. [Also in Division C7] An electrical connection between two metal bodies is protected from corrosion by coating one of the contact surfaces with a soft metal alloy before the connection is made, the hardness of the coating being less than half that of the coated body, as measured on the Moh's scale. On connection, the coating may be forced away from the contact surface but it remains at the edges and thus maintains a seal. The coating having a hardness of less than 2.5 Moh's, and being less than 1-5 mm. thick, is composed of Li, Bi, In, Zn, Sn, Pb or alloys thereof. The coating may be applied thermally or electrolytically in which case a high current density and temperature and a low pH or concentration of metal compounds causes hydrogen absorption and a coating #80% of the normal hardness. The coating may be applied to a bolt (Fig. 4, not shown) with a pointed end which projects into the bore ...

Automobile electrical contacts for use in distributors and contact breakers for internal combustion engines

An automobile electric contact for use in distributers and contact breakers for internal combustion engines includes a sintered body formed from tungsten carbide mixed with from 6 to 35% by weight of powdered elemental cobalt. The contact may also contain iron, nickel, titanium carbide, tantalum carbide, chromium carbide, molybdenum carbide, tin or chromium specified percentages. The contact may be plated with nickel where it is to be soldered to a support block. A method for making the contact comprises the steps of mixing the powdered cobalt with powdered tungsten carbide; reducing the powder mixture, mixing a binder with the powder mixture to form it into granules, compressing the granules to mould into a moulded body, and firing to sinter the moulded body in a reducing atmosphere.

Improvements in and relating to metal compositions

... 540,360. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. Nov. 19, 1940, No. 16669. Convention date, June 22. [Class 82 (i)] An alloy particularly for electric contacts consists of 35-70 per cent. of carbides of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, and tungsten, 0.25-15 per cent. of cobalt, and 25-64 per cent. of silver. The alloys may be made by pressing and sintering a mixture of the carbide powders, cobalt powder, and a binder such as resin and subsequently impregnating the product with silver, or by pressing, with or without sintering, a mixture of carbide powder, cobalt powder, and silver powder. In place of silver, alloys of silver with cadmium, zinc, tin, indium, palladium and gold may be used.

Kollektorvorrichtung einer elektrischen Maschine

Die Erfindung betrifft eine Kollektorvorrichtung elektrischer Maschinen, bestehend aus Bürsten (2), installiert in Halterungen (1) der Bürsten, angeschlossen an die in einem Bürstenträger (5) befestigten Bolzen, wobei zumindest eine Bürste (2) aus einem Material gefertigt ist, das eine Füllung aus Teflon und/oder Kohlenstofffasern enthält und mit einer Anzeige ihres Abnutzungsgrades versehen ist.

FLEXIBLE SWITCHGEAR

Kontaktstift und Rohrkontakt sowie Verfahren zur Herstellung

Kontaktstift (2) und Rohrkontakt für Hoch- und/oder Mittelspannungsschalterund Verfahren zur Herstellung eines Kontaktstifts (2) und Rohrkontakts, wobei der5 Kontaktstift (2) aufweist: eine Kontaktspitze (4) aus einem abbrandresistentenMaterial, und eine mit der Kontaktspitze (4) verbundene rohrförmigeTrägerhülse (6), einen in die Trägerhülse (6) eingegossenen Trägerkern (8),wobei die Kontaktspitze (4) in einem vorderen Bereich des Kontaktstifts (2)angeordnet ist, in dem bei der Verwendung des Kontaktstifts (2) Lichtbögenauftreten, und wobei die Trägerhülse (8) in einem an den vorderen Bereichanschließenden hinteren Bereich des Kontaktstifts (2) angeordnet ist, in dembei der Verwendung des Kontaktstifts (2) keine Lichtbögen auftreten. Wobei derRohrkontakt aufweist: einen abbrandresistenten Kontaktring, und ein mit demKontaktring verbundenes Trägerrohr, wobei der Kontaktring in einem vorderenBereich des Rohrkontakts angeordnet ist, in dem bei der Verwendung desRohrkontakts Lichtbögen auftreten ...

CONTACT MATERIAL AND ITS PRODUCTION METHOD

MICRO SWITCHING CONTACT

DEVICE FOR DISCONNECTING AN ELECTRICAL SUPPLY LINE WITH A HIGH-INTENSITY CURRENT

Dispositif de sectionnement d'une ligne d'alimentation électrique à courant de haute intensité Abrégé Dispositif de sectionnement pour interdire l'alimentation électrique lorsque nécessaire dans des installations utilisant des courants d'intensité supérieure à 1000 A. Le dispositif étant composé de module de sectionnement comportant une enceinte de contact étanche comprenant un élément conducteur de contact fixe en contact avec un élément conducteur de contact mobile et un mécanisme actionné pour supprimer le contact entre l'élément de contact fixe et l'élément de contact mobile dans le but de sectionner la ligne d'alimentation, de barres métalliques de raccordement adaptées pour être connectées à une entrée à une sortie de courant, et d'éléments conducteurs intermédiaires telles que des lames connectées d'une part aux barres de raccordement et d'autre part à l'enceinte et dans lequel au moins un des éléments de contact mobiles comporte une pastille d'argent permettant de réduire de moitié ...

СПОСІБ ВИГОТОВЛЕННЯ РІДИННО-МЕТАЛЕВОГО КОМПОЗИЦІЙНОГО КОНТАКТУ

Спосіб виготовлення рідинно-металевого композиційного контакту включає операції виробництва з дроту на основі тугоплавкого металу тканини у вигляді смуги організованої структури, скручування смуги у циліндричну заготовку і її встановлення у матрицю, пресування згаданої заготовки до одержання каркаса потрібних габаритів, відновлення каркаса у середовищі гідридного водню, який одержують у вакуумній печі, просочування пористого каркаса легкоплавким металом або сплавом, що виконують у тій же вакуумній печі у середовищі гідридного водню. Операцію просочування каркаса виконують трьома металами - оловом (Sn), індієм (In) та галієм (Ga) в середовищі гідридного водню у три послідовні стадії тривалістю 10-20 хвилин кожна, а саме: на першій стадії виконують просочування каркаса рідким оловом (Sn) при температурі 750-1150 °С, на другій - рідким індієм (In) при температурі 750-1000 °С, на третій - рідким галієм (Ga) при температурі 700-900 °С, а кількість рідких олова (Sn), індію (In) та галію (Ga) ...

Rotating electric contacts - made of conducting metal contg. easily oxidised alloying element subjected to internal oxidn.

Track contact for device of commutation and its manufactoring process

COATING OF CONTACT FOR ELECTRICAL CONTACTS FOR LOW CURRENTS

Process of inhibition of galvanic corrosion and units plated for electrical contacts obtained by application of this process

A METHOD OF IMPROVING AN ELECTRICALLY CONDUCTIVE CONNECTION

ORMES AVEC CETTE MATIERE

La matière selon l'invention est sous la forme d'une billette allongée mécaniquement formée d'au moins une première matière en métal bon conducteur d'électricité et d'une seconde matière moins malléable et plus oxydable que la première matière, la seconde matière étant choisie dans le groupe formé par les métaux, les oxydes métalliques, les alliages métalliques et leurs mélanges, la billette comportant des premières et des secondes zones alternées s'étendant sur toute la longueur de la billette et sensiblement symétriques et coaxiales autour de l'axe longitudinal, les premières zones 12 étant pratiquement formées de la première matière et les secondes zones 14 étant formées pratiquement par la seconde matière. Cette matiere convient en particulier pour former des contacts électriques de fermeture et de coupure ...

ELECTRICAL CONTACT ASSEMBLY

SECTIONALISER POWER LINE CURRENT HIGH INTENSITY

Dispositif de sectionnement composé de plusieurs modules de sectionnement d'une ligne d'alimentation électrique à courant continu d'une intensité supérieure à 1000A. Chaque module de sectionnement est composé d'une enceinte de contact étanche (10) comprenant au moins un élément conducteur de contact fixe en contact avec un élément conducteur de contact mobile et un mécanisme actionné pour supprimer le contact entre l'élément de contact fixe et l'élément de contact mobile dans le but de sectionner la ligne d'alimentation, de barres métalliques de raccordement (60, 62, et 64, 66) adaptées pour être connectées à une entrée de courant et à une sortie de courant, et d'éléments conducteurs intermédiaires telles que des lames (68, 70, et 72, 74) connectées d'une part aux barres de raccordement et d'autre part à l'enceinte. Un tel dispositif est utilisé pour pratiquer les opérations de maintenance dans les installations utilisant des courants de haute intensité supérieure à 1000 A.

Contacts for switches with high voltage

Flexible switching devices

An electronic resistor user interface comprises flexible conductive materials and a flexible variably resistive element capable of exhibiting a change in electrical resistance on mechanical deformation and is characterised by textile-form electrodes(10,12) a textile form variably resistive element (14) and textile-form members (16) connective to external circuitry.

Thermoplastic resin composition for electrical/electronic contact part and electrical/electronic contact part using the same

A thermoplastic resin composition for an electrical/electronic contact part according to the present invention includes a thermoplastic resin and a polyol, wherein the polyol is contained in a range of 0.2 to 10 parts by weight based on 100 parts by weight of the thermoplastic resin. Alternatively, a thermoplastic resin composition for an electrical/electronic contact part according to the present invention includes: a thermoplastic resin; a halogenated aromatic compound which is contained in a range of 1 to 50 parts by weight based on 100 parts by weight of the thermoplastic resin; and a double salt represented by at least one of (X₂O)_n.Sb₂O₅ and (YO)_n.Sb₂O₅, where X represents a monovalent alkaline metal element, and Y represents a divalent alkaline earth metal element, and n represents a ratio of X₂O or YO to Sb₂O₅ exceeding 0.7, the double salt having an adsorbed water elimination ...

Sliding switch contact structure

A sliding switch contact structure that has a movable contact and a fixed contact which are formed of a stainless steel, an Fe-Ni alloy, an Fe-Ni-Co alloy, or an Fe-Ni-Cr alloy. With such structure, a contact material is provided that is usable in a slide switch operating in high temperature oil contained within a transmission, an engine or a brake hydraulic system of an automotive vehicle.

Materials for electrical contact

SILVER METAL OXIDE ALLOY AND METHOD OF MAKING

Various embodiments disclosed relate to an alloy. The alloy includes elemental silver. The alloy further includes a metal oxide phase in the elemental silver. The metal oxide phase includes a wetting agent layer that coats the metal oxide phase. 1. An alloy comprising:elemental silver; anda metal oxide phase in the elemental silver, wherein the metal oxide phase comprises a wetting agent layer, wherein the wetting agent layer defines an interface between the metal oxide phase and the elemental silver that is adjacent thereto.2. The alloy of claim 1 , wherein the wetting agent layer encapsulates and uniformly coats the metal oxide phase.3. The alloy of claim 1 , wherein the elemental silver is about 80 wt % to about 98 wt % of the alloy.4. The alloy of claim 1 , wherein the metal oxide phase is about 4 wt % to about 12 wt % of the alloy.5. The alloy of claim 1 , wherein the wetting agent layer is about 0.05 wt % to about 1 wt % of the alloy.6. The alloy of claim 1 , wherein the metal oxide phase comprises zinc oxide claim 1 , tin oxide claim 1 , tungsten oxide claim 1 , copper oxide claim 1 , copper peroxide claim 1 , iron oxide claim 1 , or any combination thereof.7. The alloy of claim 1 , wherein the metal oxide phase comprise one metal oxide and is free of other metal oxides.8. The alloy of claim 1 , wherein the metal oxide phase is free of cadmium oxide.9. The alloy of claim 1 , wherein the wetting agent layer comprises a wetting agent that is molybdenum trioxide claim 1 , tellurium dioxide claim 1 , antimony trioxide claim 1 , tantalum pentoxide claim 1 , magnesium oxide claim 1 , bismuth oxide claim 1 , bismuth tin oxide claim 1 , elemental bismuth claim 1 , antimony trioxide claim 1 , tantalum carbide claim 1 , ruthenium oxide claim 1 , germanium dioxide claim 1 , tungsten oxide claim 1 , or ruthenium oxide.10. The alloy of claim 1 , wherein the metal oxide phase comprise tin oxide and the wetting agent comprises silver tungstate.11. The alloy of claim 1 , ...

Electrical contact

Sliding switch contact structure

Disclosed is a structure of a sliding switch contact. The sliding switch contact has a movable contact and a fixed contact which are formed of a stainless steel, an Fe-Ni alloy, an Fe-Ni-Co alloy, or an Fe-Ni-Cr alloy. With such structure, a contact material is provided that is usable in a high-temperature oil contained within a transmission, an engine or a brake hydraulic system of an automotive vehicle.

СПОСОБ НАНЕСЕНИЯ ЭЛЕКТРОЭРОЗИОННОСТОЙКИХ ПОКРЫТИЙ СИСТЕМЫ Ni-C-Ag-N НА МЕДНЫЕ ЭЛЕКТРИЧЕСКИЕ КОНТАКТЫ

FIELD: erosion-resistant coatings production. SUBSTANCE: invention relates to the formation of coatings based on silver, nickel, nickel nitrides Ni 3 N, Ni 4 N, nickel carbides NiC, NiC 0,33 and carbon on copper electrical contacts, which can be used in electrical engineering. The method includes an electric explosion of a three-layer composite electrically exploded conductor, one of the layers of which consists of silver foil weighing 60-360 mg, the second layer is made of nickel equal to 0.5-2.0 mass of the first layer, and the third layer is made of carbon-graphite fiber equal to 0 .5-1.0 masses of the first layer, formation of a pulsed multiphase plasma jet from the explosion products, melting the surface of a copper electrical contact with it at an absorbed power density of 4.5-6.5 GW/m 2 , deposition on the surface of the explosion products and formation of a coating of the Ni-C-Ag system on it, nitriding during 3-5 hours at a temperature of 500-600°C and subsequent pulse-periodic electron-beam treatment of the surface of the coating at an absorbed energy density of 40-60 J/cm 2 , a pulse duration of 150-200 µs and a number of 10-30 pulses. EFFECT: invention is aimed at obtaining electrical erosion-resistant coatings with high electrical conductivity, electrical erosion resistance and adhesion to the substrate at the level of cohesion. 1 cl, 2 ex, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 769 782 C1 (51) МПК C23C 4/10 (2006.01) C23C 4/134 (2016.01) H01H 1/021 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C23C 4/10 (2022.02); C23C 4/134 (2022.02); H01H 1/021 (2022.02); C23C 4/18 (2022.02) (21)(22) Заявка: 2021131730, 28.10.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 06.04.2022 2 7 6 9 7 8 2 R U Адрес для переписки: 654007, Кемеровская обл. - Кузбасс, г. Новокузнецк, Центральный р-н, ул. Кирова, зд. 42, ФГБОУ ВО "Сибирский государственный индустриальный университет", ...

ELEKTRISCHES KONTAKTELEMENT UND VERWENDUNG EINES KONTAKTELEMENTES

Schaltstueck fuer elektrische Schalter, insbesondere fuer Druckgasschalter

Method for manufacturing switchable, electrical contact member for switching or prominent contacts at e.g. electromagnetic relay, involves accessing contacting area for counter contact, via which material of wire is formed

The method involves providing a wire into a cladding, where wire is made of electrical conductive material e.g. copper. A cylindrical semi-finished material is formed by dividing the wire in a direction transverse to a wire longitudinal axis. The semi-finished material is fixed on a contact carrier (104) so that an electrical conductive material or metal coat of the cladding is connected with the carrier. The semi-finished material is reshaped for formation of a contact member (100). A contacting area (106) is accessible for a counter contact, via which the material of the wire is formed. An independent claim is also included for an electrical contact member that is manufactured by the method.

Electrical contacts

In a process of forming a sintered silver electrode containing 0.8-6% of silver halide and optionally 1-4.5% of a metal oxide, the silver powder is reacted with a halogen or a halide such as NH4Cl to form a silver halide coating on the silver powder which is then pressed and sintered. One or more of the oxides of the following metals may be added to the silver powder either before or after reaction with the halide:-Cu, Cr, Sn, Cd, Fe, Ru, Ni, Mn, Mo, Co, W, U, Rh, Pd. The coating is preferably effected by mixing the silver powder with NH4Cl powder, adding water and heating the paste to 200 DEG to 250 DEG C. The coated powder after crushing to minus 170 mesh is pressed and sintered in air. The compact may then be coined, hot or cold rolled and re-sintered.

ELECTRICAL CONTACT ELEMENT AND USE OF A CONTACT ELEMENT

CONTACT ELEMENT AND CONTACT SYSTEM

PRODUCTION OF A POWDER MADE OF MELTED METAL BY ATOMIZATION WITH REACTIVE GAS

PROCEDURE FOR THE PRODUCTION OF SINTER-ABLE METALLIC POWDERS FROM TUNGSTEN AND COPPER

CONTACT ELEMENT

COMPOSITE MATERIAL WITH PREFERABLY NON-METALLIC STORAGES AND PROCEDURE FOR ITS PRODUCTION

Wear-resistant electromechanical contacts

Silver-coated composite material for a movable contact part, method of producing the same, and movable contact part

A silver-coated composite material for movable contact parts, which has: an underlying layer composed of any one of nickel, cobalt, a nickel alloy, and a cobalt alloy at least provided on a part of the surface of a stainless steel substrate; an intermediate layer composed of copper or a copper alloy provided thereon; and a silver or silver alloy layer provided thereon as an outermost layer, wherein a thickness of the intermediate layer is 0.05 to 0.3 μm, and wherein an average grain size of the silver or silver alloy provided as the outermost layer is 0.5 to 5.0 μm.

METHOD FOR PATTERNING AMORPHOUS ALLOY, AMORPHOUS ALLOY PATTERN STRUCTURE USING THE SAME, DOME SWITCH, AND METHOD FOR MANUFACTURING DOME SWITCH

A method for patterning an amorphous alloy is provided. The method includes forming a pattern for defining an amorphous alloy deposition region on a parent material, forming an amorphous alloy deposition layer on the parent material with the pattern formed thereon, and etching a region except for the amorphous alloy deposition region. A dome switch is provided. The dome switch includes a metal layer shaped like a dome, a central portion of which protrudes, and, in response to external force being received through the protruding central portion, the central portion contacting and electrically connected to a circuit board, and an amorphous alloy layer disposed on the metal layer. Accordingly, an amorphous alloy structure with enhanced durability and reliability is easily manufactured. 1. A method for patterning an amorphous alloy , the method comprising:forming, on a parent material, a pattern that defines a first region on the parent material as an amorphous alloy deposition region;forming, on the parent material, an amorphous alloy deposition layer on the first region and on a second region on the parent material different from the first region; andetching the second region so that the amorphous alloy deposition layer is removed from the second region.2. The method as claimed in claim 1 , wherein the forming of the amorphous alloy deposition layer uses a sputtering method and is performed at a temperature between a room temperature and 300° C.3. The method as claimed in claim 1 , wherein attaching, to the parent material, a film patterned so as to expose the second region on an upper surface of the parent material,', 'forming a material layer that reacts with acid on the exposed second region, and', 'removing the film, such that the material layer remains as the pattern that defines the first region, and, 'the forming of the pattern comprisesthe film comprises at least one of a polymer and ceramic.4. The method as claimed in claim 1 , wherein the forming of the ...

METHOD USING BISMUTH BASED ALLOY AS SWITCH OR SOCKET POWER-OFF ELEMENT

A method for using a bismuth based alloy as switch or socket power-off element which is applied to a switch or a socket, and the switch or the socket includes two conductive elements for conducting currents and one power-off element. A bismuth based alloy is used as the power-off element and a melting point of the bismuth based alloy is between 100° C. to 380° C. When the power-off element is in an environment below the melting point, the two conductive elements are mutually contacted and capable of conducting currents, whereas the power-off element is only receptive of the currents but does not serve as a medium for conducting the currents; when a working temperature of the switch or the socket is close to or exceeds the melting point, the power-off element loses rigidity and enables the two conductive elements to be separated from each other, thereby forming an electrically disconnected state. 1. A method for using a bismuth based alloy as switch or socket power-off element , the method being applied to a switch or a socket , wherein the switch or the socket includes two conductive elements for conducting currents and one power-off element , a bismuth based alloy is used as the power-off element and a melting point of the bismuth based alloy is between 100° C. to 380° C.; when the power-off element is in an environment below the melting point , the two conductive elements are mutually contacted and capable of conducting currents , whereas the power-off element is only receptive of the currents but does not serve as a medium for conducting the currents; when a working temperature of the switch or the socket is close to or exceeds the melting point , the power-off element loses a rigidity thereof and enables the two conductive elements to be separated from each other , thereby forming an electrically disconnected state.2. The method using a bismuth based alloy as switch or socket power-off element in accordance with claim 1 , wherein after the two conductive ...

HIGH VOLTAGE INTERRUPTER UNIT WITH IMPROVED MECHANICAL ENDURANCE

A high voltage interrupter unit includes a switching chamber within which at least two electric contact elements of a contact system are arranged to be moved relative to one another. The contact system includes at least one mechanical element which is at least in part not in fixed mechanical connection with either of the two contact elements. In order to increase the mechanical endurance of the contact system, the at least one mechanical element is sheathed at least in part in a layer of a synthetic, abrasion resistant material. 1. A high voltage interrupter unit , comprising:a switching chamber having at least two electric contact elements of a contact system that are arranged to be moved relative to one another,wherein the contact system includes at least one mechanical element which is at least in part not in fixed mechanical connection with either of the two contact elements, andwherein the at least one mechanical element is sheathed at least partly in a layer of a synthetic, abrasion resistant material.2. The high voltage interrupter unit according to claim 1 , wherein the layer of synthetic material is arranged as a flexible sleeve around the mechanical element.3. The high voltage interrupter unit according to claim 2 , wherein the sleeve is made of a band of the synthetic material which is wound spirally or helically around the mechanical element.4. The high voltage interrupter unit according to claim 1 , wherein the layer of synthetic material is applied to the mechanical element as a surface coating.5. The high voltage interrupter unit according to claim 1 , wherein the synthetic material is polytetrafluoroethylene (PTFE).6. The high voltage interrupter unit according to claim 2 , wherein the synthetic material is polytetrafluoroethylene (PTFE).7. The high voltage interrupter unit according to claim 3 , wherein the synthetic material is polytetrafluoroethylene (PTFE).8. The high voltage interrupter unit according to claim 4 , wherein the synthetic material ...

CONTACT ASSEMBLY FOR ELECTRICAL DEVICES AND METHOD FOR MAKING

A contact assembly for an electrical device and a method for making such an assembly are presented. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above.. 1. A method for fabricating a contact assembly for an electrical device , the method comprising:axially feeding a powder feedstock into a gas stream of a cold spray deposition apparatus, wherein the powder feedstock comprises (i) a first powder comprising a refractory material and (ii) a second powder comprising a matrix material, the matrix material having a higher ductility than the refractory material; anddirecting the gas stream and entrained powder feedstock through a nozzle onto a substrate to dispose the powder feedstock on the substrate in a continuous layer comprising a core region and an outer region bounding at least a portion of the core region, the core region having a higher concentration of the refractory material than the outer region.2. The method of claim 1 , wherein the gas stream is accelerated through the nozzle to a supersonic velocity.3. The method of claim 1 , wherein the refractory material is between 50-90 weight percent of the powder feedstock.4. The method of claim 1 , wherein the gas stream is heated to about 800 degrees Celsius.5. The method of claim 1 , wherein the refractory material comprises tungsten metal claim 1 , and wherein the matrix material comprises silver.6. The method of claim 1 , wherein the substrate comprises a contact arm or circuit ...

SCREW AND METHOD OF ITS MANUFACTURE

A screw includes a barrel-shaped central pin is surrounded by a cylindrical bore having a conical bottom. The cylindrical insert is seated in the cylindrical bore. The top surface of the central pin is lowered below the top surface of the head. The walls of the pin () are convex towards the insert. Manufacturing the screw includes producing the threaded part with the head with the cylindrical recess with the cone-shaped bottom. The cylindrical insert terminates at one end with a bevel with an inclination angle of α=10-30°. The insert is introduced into the cylindrical recess. The upper part of the insert protruding from head of the screw is pre-shaped. The pin is upset using an appropriate tool and simultaneously the top surface of the pin is lowered below the top surface of the head. 1435342. A screw comprising a threaded part and a head in which an insert made of copper or aluminium , or copper alloy , or aluminium alloy is permanently seated , with grooves provided in the top surface of the head concentrically with the screw axis , wherein the screw comprises an upset central pin () , the screw being barrel-shaped , surrounded by a cylindrical bore () having a conical bottom with an inclination angle of α from 10° to 30° , the screw having a cylindrical insert () with an axial through hole which is made of copper , aluminium , copper alloy , or aluminium alloy and is permanently seated in the cylindrical bore () , wherein the top surface of the central pin () is lowered by d from 0.1 mm to 0.6 mm below the top surface of the head ().2333. The screw according to claim 1 , the outer surfaces (′ claim 1 , ″) of the cylindrical bore () are parallel to the screw axis.3312. The screw according to claim 1 , wheren the bottom of the cylindrical bore () has the form of a circular sector with the radius of R from 0.8 L to 1.2 L claim 1 , where L is equal to the difference between the bore diameter (L) and the pin diameter (L).44. The screw according to claim 1 , wherein ...

RIVET-TYPE CONTACT AND METHOD FOR MANUFACTURING THE SAME

A rivet-type contact of the present invention has a head part made of a contact material, and a leg part narrower than the head part in width and configured to be deformed at fixation. The leg part includes a flange part larger than the leg part in diameter, in an end part of the side of the head part, the flange part is embedded in the head part such that a lower end surface of the flange part and a lower end surface of the head part become approximately flat, and a length (l) between an endmost part of the flange part and a starting point of the leg part satisfies l Подробнее

HYDROGEL NETWORK

The invention provides a hydrogel network comprising a plurality of hydrogel objects, wherein each of said hydrogel objects comprises: a hydrogel body, and an outer layer of amphipathic molecules, on at least part of the surface of the hydrogel body, wherein each of said hydrogel objects contacts another of said hydrogel objects to form an interface between the contacting hydrogel objects. A process for producing the hydrogel networks is also provided. The invention also provides an electrochemical circuit and a hydrogel component for mechanical devices comprising a hydrogel network. Various uses of the hydrogel network are also described, including their use in synthetic biology and as components in electrochemical circuits and mechanical devices. 1. An electrochemical circuit comprising a hydrogel network , wherein the hydrogel network comprises a plurality of hydrogel objects , wherein each of said hydrogel objects comprises:a hydrogel body,wherein each of said hydrogel objects contacts another of said hydrogel objects to form an interface between the contacting hydrogel objects.2. An electrochemical circuit according to wherein each of the hydrogel objects comprises:(a) said hydrogel body, and(b) an outer layer of amphipathic molecules, on at least part of the surface of the hydrogel body.3. An electrochemical circuit according to wherein (a) a hydrogel body, and', '(b) an outer layer of amphipathic molecules, on at least part of the surface of the hydrogel body,, 'said plurality of hydrogel objects comprises a first hydrogel object and a second hydrogel object, wherein each of the first and second hydrogel objects compriseswherein the first hydrogel object contacts the second hydrogel object to form said interface between the first and second objects.4. An electrochemical circuit according to wherein the interface between the first and second objects comprises a bilayer of amphipathic molecules.5. An electrochemical circuit according to wherein the hydrogel ...

Switch Contact Element and Its Preparation Method

A switch contact element, having a layered structure comprising three layers: the bottom layer is silicone rubber, the middle layer is a continuous base metal sheet layer, and the upper layer is a discontinuous (stripe-shaped, raised-point-shaped or lattice-shaped) precious metal plated layer or a double-metal composite layer of a discontinuous base metal plated layer and a precious metal plated layer. The thickness of the bottom layer is greater than that of the middle layer, the thickness of the middle layer is greater than that of the upper layer, and the thickness of the upper layer meets the conditions that the conductive current is greater than safe current of conductive contacts on a circuit board, and the service life of a switch for the design is ensured. 1. A switch contact component , used as switch conducting contact,', {'sup': '2', 'capable of connecting two or more conducting contacts and switching on the circuit board, being a small cylindrical, elliptical or prismatic disk with having a thickness of 0.5-8 mm and a cross sectional area of 0.8-80 mm,'}, 'and being structured in three layer lamination, comprising, 'wherein the switch contact component is'}{'b': '1', 'a under layer, which is a rubber ();'}{'b': '2', 'a continuous base metal sheet, sandwiched as a mid layer ();'}{'b': 3', '4, 'a upper layer, a striped, convex dotted or latticed precious metal plating or a bimetallic composite layer formed with a striped, dotted or latticed base metal plating () and a precious metal plating ();'}{'b': 3', '2', '4, 'and said base metal plating () is sandwiched between the mid layer () and the precious metal plating ();'}wherein said base metal material is selected from copper, nickel, titanium, aluminum, zinc or iron, or any alloy of them, or a laminated composite containing any of them or their alloys;wherein said precious metal plating material is selected from gold, silver, ruthenium, rhodium, palladium, osmium, iridium or platinum, or any of their ...

ARC-ABLATION RESISTANT SWITCH CONTACT AND PREPARATION METHOD THEREOF

An arc-ablation resistant switch contact and a preparation method thereof is disclosed. The switch contact is a complex having a plurality of layers of layered structure, wherein a first layer is a hydrophobic rubber layer, a second layer is an adhesive layer, a third layer is a sheet metal layer, a fourth layer is an adhesive layer, and a fifth layer is a metal plated layer; wherein, the fifth layer of metal plated layer is formed by dipping a complex of the first layer, the second layer, the third layer and the fourth layer in a chemical plating bath containing refractory metal elements, and depositing on surfaces of the second layer, the third layer and the fourth layer in the complex by a chemical deposition method. 110-. (canceled)11. An arc-ablation resistant switch contact , wherein the switch contact is a complex having a plurality of layers of layered structure , comprising:a first layer, which is a hydrophobic rubber layer having a thickness of 0.1-10 mm;a second layer, which is an adhesive layer having a thickness of 0-1.0 μm, the adhesive layer of the second layer including a coupling agent or a metal rubber adhesion agent;a third layer, which is a sheet metal layer having a thickness of 0.01-1.0 mm;a fourth layer, which is an adhesive layer having a thickness within a range of a thickness of a monomolecular layer to an average thickness of 0.2 μm, the adhesive layer of the fourth layer including a coupling agent or a metal rubber adhesion agent; and{'sup': '−5', 'a fifth layer, which is a refractory metal plated layer having a thickness of 2*10-0.02 mm and containing tungsten, rhenium, osmium, tantalum, molybdenum, niobium, iridium, hafnium, vanadium, chromium or zirconium alloy, wherein the fifth layer of refractory metal alloy plated layer is deposited on surfaces of the second layer, the third layer and the fourth layer in the complex or is deposited on a surface of the fourth layer in the complex.'}12. The arc-ablation resistant switch contact ...

ARC-ABLATION RESISTANT TUNGSTEN ALLOY SWITCH CONTACT AND PREPARATION METHOD THEREOF

An arc-ablation resistant tungsten alloy switch contact and preparation method is disclosed. A contact member has a three-layer structure, wherein a first layer is a hydrophobic rubber layer, a second layer is a sheet metal layer, and a third layer is a tungsten alloy chemical deposition layer. A plating bath adopted in the chemical deposition contains 25-125 g/L soluble tungsten compound, 0-60 g/L soluble compound of a transition metal like ferrum, nickel, cobalt, copper or manganese, and 0-30 g/L soluble compound of tin, stibium, lead or bismuth. When a layered complex of the hydrophobic rubber layer and the sheet metal layer is chemically plated by the plating bath, a tungsten alloy plated layer is selectively deposited on a metal surface, and chemical deposition of the tungsten alloy does not occur on a surface of the hydrophobic rubber fundamentally. 110-. (canceled)11. An arc-ablation resistant tungsten alloy switch contact , wherein the switch contact is a layered complex having a three-layer structure , comprising:a first layer, which is a hydrophobic rubber layer having a thickness of 0.1-10 mm;a second layer, which is a sheet metal layer having a thickness of 0.01-1.0 mm and containing magnesium, aluminum, titanium, chromium, manganese, ferrum, cobalt, nickel, copper, zinc, niobium, molybdenum, silver, tin or aurum; and{'sup': '−5', 'a third layer, which is a tungsten alloy plated layer having a thickness of 2*10-0.02 mm, wherein the tungsten alloy plated layer of the third layer is deposited on the surface of the second layer, and the tungsten alloy plated layer in the third layer contains a tungsten element having a weight ratio no less than 30%.'}12. The arc-ablation resistant tungsten alloy switch contact according to claim 11 , wherein the third layer is chemically deposited on the surface of the second layer.13. The arc-ablation resistant tungsten alloy switch contact according to claim 11 , wherein the hydrophobic rubber layer is composed of a ...

ISOLATION STRUCTURES FOR ELECTRICAL SYSTEMS

A nanocomposite structure includes a nanocomposite. The nanocomposite includes a bulk matrix phase and a nanophase filler disposed within the bulk matrix phase. The nanophase has a plurality of nanotubes including a material with thermal conductivity that is greater than the thermal conductivity of the bulk matrix phase of the nanocomposite. An electrical device includes a conductor in thermal communication with the nanocomposite structure formed from the nanocomposite. 1. A nanocomposite structure , comprising: a bulk matrix phase; and', 'a nanophase filler disposed in the bulk matrix phase, wherein the nanophase filler comprises a plurality of nanotubes,', 'wherein the plurality of nanotubes include a material with a thermal conductivity that is greater than a thermal conductivity of the bulk matrix phase., 'a nanocomposite including2. A nanocomposite structure as recited in claim 1 , wherein the nanophase filler is an electrical insulator.3. A nanocomposite structure as recited in claim 1 , wherein the nanocomposite is an electrical insulator.4. A nanocomposite structure as recited in claim 1 , wherein the bulk matrix phase includes one or more of a polymeric material claim 1 , a resin claim 1 , and an adhesive.5. A nanocomposite structure as recited in claim 1 , wherein the plurality of nanotubes include boron nitride.6. A nanocomposite structure as recited in claim 1 , wherein the nanocomposite is thermally anisotropic.7. A nanocomposite structure as recited in claim 1 , wherein the plurality of nanotubes are in physical contact within one another.8. A nanocomposite structure as recited in claim 1 , wherein the plurality of nanotubes intermesh with one another.9. A nanocomposite structure as recited in claim 8 , wherein the intermeshed nanotubes form a fibrous reinforcing structure.10. A nanocomposite structure as recited in claim 1 , wherein one or more of the plurality of nanotubes has a body with a serpentine shape.11. A nanocomposite structure as recited in ...

SWITCH

A switch for electrically connecting at least two lines as and when required, having a housing having at least two terminals for the lines to be connected to, having a first conductor connected to a first terminal and a second conductor connected to a second terminal and having a connecting conductor which can be brought into contact with the two conductors by an actuating device in order to close the switch, wherein at least one of the conductors and the connecting conductor are in contact indirectly via a dielectric when the switch is in the closed state. 1. A switch for electrically connecting at least two lines including: a housing having at least two terminals for the lines to be connected to , with a first conductor connected to a first terminal , and a second conductor connected to a second terminal , and a connecting conductor in releasable electrical communication with the two conductors by an actuating device in order to close the switch , at least one of the conductors and the connecting conductor being in contact indirectly via a dielectric when the switch is in the closed state , wherein the connecting conductor is movable in translation by the actuating device.2. The switch of wherein the dielectric is a layer of a thickness of ≦0.1 mm.3. The switch of claim 1 , wherein the dielectric is based on a polyimide claim 1 , Teflon or Kapton.4. The switch of claim 1 , wherein contact-making surfaces of the two conductors and the connecting conductor are of an oblique form relative to the longitudinal axis of the associated conductor or connecting conductor.5. The switch of claim 4 , including both the contact-making surfaces of the conductors and the contact-making surfaces of the connecting conductor are of an oblique form in opposite directions.6. The switch of wherein the connecting conductor is loaded into its open position by a resilient member.7. The switch of claim 1 , wherein the terminal claim 1 , the conductors and the connecting conductor have an ...

COMPOSITION FOR COATING OF ELECTRICAL CONTACT POINT AND METHOD FOR COATING OF ELECTRICAL CONTACT POINT USING THE SAME COMPOSITION

A composition for coating an electrical contact point includes a silver powder and a fluorinated resin. The silver powder is dispersed in the fluorinated resin, and a weight ratio of the silver powder for the fluorinated resin is in a range from 0.4 to 1. 1. A composition for coating an electrical contact point comprising a silver powder and a fluorinated resin ,wherein the silver powder is dispersed in the fluorinated resin, anda weight ratio of the silver powder to the fluorinated resin is in a range from 0.4 to 1.2. The composition of claim 1 , wherein:a diameter of the silver powder is in a range from 3 to 50 μm.3. The composition of claim 2 , wherein:the fluorinated resin includes polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene hexafluoropropylene copolymer (FEP), ethylene tetrafluoroethylene (ETFE), polychlorotrifluoroethylene (PCTFE), ethylene chlorotrifluoroethylene (ECTFE), polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), or combinations thereof.4. A method for coating an electrical contact point claim 2 , the method comprising steps of:preparing a contact point base material;preparing a composition for coating the electrical contact point;coating the composition for coating the electrical contact point on the contact point base material; andhardening the coated composition to form a coating layer on a surface of the contact point base material.5. The method of claim 4 , wherein:in the step of preparing the composition for coating the electrical contact point,the composition for coating the electrical contact point includes a silver powder and a fluorinated resin,the silver powder is dispersed in the fluorinated resin,a weight ratio of the silver powder to the fluorinated resin is in a range from 0.4 to 1.6. The method of claim 5 , wherein:a diameter of the silver powder is in a range from 3 to 50 μm.7. The method of claim 6 , wherein:the fluorinated resin includes ...

Monolithic contact system and method of forming

A circuit breaker having a monolithic structure and method of making is disclosed. The monolithic structure includes an arm portion having copper and a contact portion having a composite material. The composite material has a metallic matrix and a second phase disposed in the metallic matrix. The method of making the monolithic structure includes introducing a first powder into a first region of a mold, introducing a second powder into a second region of the mold, and consolidating the first powder and the second powder together. The first region of the mold corresponds to a contact portion, and the second region corresponds to an arm portion of the monolithic structure of the circuit breaker.

CONTACT ASSEMBLY FOR ELECTRICAL DEVICES AND METHOD FOR MAKING

A contact assembly for an electrical device and a method for making such an assembly are presented. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above. 1. A contact assembly for an electrical device , the contact assembly comprising:a substrate; anda contact material disposed on the substrate,wherein the contact material comprises a composite material comprising a refractory material and a matrix material, the matrix material having a higher ductility than the refractory material;wherein the composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region.2. The contact assembly of claim 1 , wherein the refractory material comprises metallic tungsten claim 1 , a carbide claim 1 , graphite claim 1 , or a nitride.3. The contact assembly of claim 1 , wherein the refractory material comprises tungsten.4. The contact assembly of claim 1 , wherein the matrix material has an electrical conductivity of at least 3.0×10siemens per meter.5. The contact assembly of claim 1 , wherein the matrix material comprises silver claim 1 , copper claim 1 , gold claim 1 , aluminum claim 1 , or a combination including one or more of the foregoing metals.6. The contact assembly of claim 1 , wherein the refractory material is present in the core region of the composite material at a concentration of at least 30 volume percent.7. The ...

SWITCHING CONTACTOR

A switching electrical power contactor having a bi-blade type switch, has ferrous plates attached to the blades to increase the current carrying capacity and reduce the resistance of the switch. The contacts of the switches are arranged in pairs with at least one pair of contacts being arranged to close before another pair of contacts. 1. An electrical contactor comprising:a first terminal connected to a first and a second fixed contacts on opposite faces of a fixed conductive member;a second terminal;a first movable arm of electrically conductive material connected to the second terminal, and carrying a first movable contact at a free end remote from the connection to the second terminal, the first movable contact and the first fixed contact forming a first switch and being arranged in a first switch pair;a second movable arm of electrically conductive material connected to the second terminal, and carrying a second movable contact at a free end remote from the connection to the second terminal, the second movable contact and the second fixed contact forming a second switch and being arranged in a second switch pair, wherein the contacts of the first switch pair of contacts are larger than the contacts of the second switch pair of contacts; andan actuating arrangement arranged to move the movable arms so as to open and close the switches,wherein the actuating arrangement is arranged to close the first switch pair of contacts before closing the second switch pair of contacts.2. The electrical contactor of claim 1 , wherein the first and second movable arms are arranged in aligned opposition to each other such that their free ends are on either side of the fixed conductive member claim 1 , with the first and second movable contacts aligned with the first and second fixed contacts respectively claim 1 , the first movable contact and the first fixed contact are separated by a first gap claim 1 , the second movable contact and the second fixed contact are separated by a ...

Rivet-type contact and method for manufacturing the same

A rivet-type contact of the present invention has a head part made of a contact material, and a leg part narrower than the head part in width and configured to be deformed at fixation. The leg part includes a flange part larger than the leg part in diameter, in an end part of the side of the head part, the flange part is embedded in the head part such that a lower end surface of the flange part and a lower end surface of the head part become approximately flat, and a length (l) between an endmost part of the flange part and a starting point of the leg part satisfies l<L with respect to a length (L) between an endmost part of the head part and the starting point of the leg part. Specifically, it is favorable that l satisfies 0.5 L≦l≦0.9 L with respect to L.

CARRIER AND ELECTRIC SWITCH HAVING SAID CARRIER

The present invention relates to a carrier for electrical and/or electronic components, in particular, a printed circuit board, having a broadside for accommodating electrical conductor tracks, and having a narrow side. At least one electrically conductive contact area is provided on the carrier, the contact area, in particular, being used as a fixed contact for an electrical switch. The contact area is arranged on the narrow side. 1. A carrier for electrical and/or electronic components , having a broadside for accommodating electrical conductor tracks , and having a narrow side , at least one electrically conductive contact area being provided , and the contact area being used as a fixed contact for an electrical switch , wherein the contact area is arranged on the narrow side.2. The carrier as claimed in claim 1 , wherein the carrier consists of electrically insulating material claim 1 , and wherein the contact area consists of electrically conductive material.3. The carrier as claimed in claim 1 , wherein the contact area consists of a coating with an electrically conductive metal claim 1 , and wherein the coating is partially formed on the narrow side.4. An electrical switch having at least one fixed contact and a switching contact for switching interaction with the fixed contact and with a printed circuit board as the carrier as claimed in claim 1 , which has the fixed contact.5. The electrical switch as claimed in claim 4 , further comprising two fixed contacts claim 4 , wherein the switching contact interacts with the fixed contacts in a bridging manner.6. The electrical switch as claimed in claim 4 , wherein the switching contact comprises an electrically conductive pill claim 4 , the switching contact is situated on a switching mat claim 4 , and the switching mat consists of elastomeric and/or elastic plastic.7. The electrical switch as claimed in claim 6 , wherein the switching mat is arranged on a carrier part claim 6 , and a recess is provided in the ...

ELECTRICAL CONTACTS WITH A REDUCED ALUMINUM SECTION

Electrical contacts with a reduced section for use in high-voltage switches, the contacts are produced by machining or by extrusion. The contacts are designed to be used outdoors, indoors, in vacuum or in any other inert atmosphere for electrical switching equipment without additional pressure system or with additional pressure system. The contacts can be used in linear movement, radial movement, or any other type of movement or sliding. The contacts can be used in various shapes, such as contact pins or tulip shapes, partial tulips, or rectangular tulips, or they can be used as the single pressure element for the electrical contact. The contacts are designed to cooperate electrically with opposing contact parts. The contacts can interrupt a physical link with an opposing contact or they can remain in constant contact during the operating movement. The contacts are made from aluminum alloys, with or without contact surfaces. A contact assembly can use the same base materials or different base materials. The contacts can be used as an intermediary between copper and aluminum parts in the switch to prevent corrosion due to the electrochemical potential difference of the materials. 1. An electrical contact with reduced section for use as a component of a high-voltage switch , the contact with reduced section comprises a base with a first thickness , at least one intermediate section with a second thickness that is associated with an end section with a third thickness , the second thickness is smaller than the first and third thicknesses.2. Contact according to claim 1 , in which the end section is a contact surface.3. Contact according to claim 1 , in which the at least one intermediate section acts like a spring element.4. Contact according to claim 1 , in which the circular base and the at least one intermediate section are comprised of a number of contact pins of the second thickness.5. Contact according to claim 1 , in which the intermediate section is curved and ...

SNAP ACTION SWITCH CONTACT WITH REDUCED STRAY ARCING

Embodiments relate generally to systems and methods for preventing arcing within a snap action switch, particularly by removing a portion of a contact carrier attached to a stationary contact. A method of forming a contact for use in a snap action switch may comprise welding a contact onto a contact carrier; trimming at least one edge of the contact carrier proximate to the contact; and installing the contact carrier into a snap action switch housing. Trimming the at least one edge of the contact carrier may also comprise removing flash formed during the welding of the contact to the contact carrier. 1. A method of forming a contact for use in a snap action switch , the method comprising:forming a contact onto a contact carrier;forming flash on the contact carrier, wherein the flash is positioned to extend from the contact along the contact carrier:trimming at least one edge of the contact carrier proximate to the contact, wherein the trimming comprises removing the flash; andinstalling the contact carrier into a snap action switch housing.2. The method of claim 1 , wherein the contact comprises a material different from that of the contact carrier.3. The method of claim 1 , wherein forming the contact onto the contact carrier comprises welding.4. The method of claim 1 , wherein forming the contact onto the contact carrier comprises welding a silver contact to a brass contact carrier.5. The method of claim 1 , wherein the trimming further comprises removing a portion of the contact carrier proximate to the contact.6. The method of claim 1 , wherein the trimming further comprises forming an edge of the contact carrier that is flush with at least a portion of the contact.7. The method of claim 1 , wherein the trimming further comprises forming an edge of the contact carrier that is within 0.01 inches of at least a portion of the contact.8. The method of claim 1 , wherein installing the contact carrier into a snap action switch comprises installing the stationary ...

DEVICE FOR DISCONNECTING AN ELECTRICAL SUPPLY LINE WITH A HIGH-INTENSITY CURRENT

A disconnecting device having a plurality of modules for disconnecting an electrical supply line of an intensity higher than 1000 A. Each module includes a tight contact casing () having at least one fixed-contact conductive element () in contact with a mobile-contact conductive element (), and a mechanism for interrupting the contact between the fixed-contact element and the mobile-contact element so as to disconnect the supply line; metal connection bars ( and ) for connecting to a current input and to a current output; and intermediate conductive elements such as blades ( et ) connected to the connection bars and to the casing. At least one of the mobile-contact elements includes a silver pellet fixed to the surface of the element, allowing the contact resistance between the mobile-contact element and the fixed-contact element to be reduced by half. 1. A disconnecting module of a power supply line adapted to have the lowest possible resistance so as to obtain as little heat dissipation by Joule effect as possible , comprising:{'b': 10', '12', '14', '16', '18', '20', '36', '26, 'a tight contact casing () comprising at least a first fixed-contact conductive element () to establish the electrical connection with a current input and a second fixed-contact conductive element () to establish the electrical connection with a current output, said fixed-contact elements being electrically connected on the outside of the casing by two connection terminals (, ) respectively, and at least one mobile-contact conductive element ( or ) adapted to come in contact simultaneously on said first and second fixed-contact elements under the action of an actuating mechanism (), said mechanism being actuated so as to interrupt the contact between said fixed-contact elements and said mobile-contact element with the aim of disconnecting said supply line,'}at least a first metal connection bar adapted to be connected to a current input and at least a second connection bar adapted to be ...

LOW VOLTAGE CIRCUIT BREAKER

A low voltage circuit breaker is provided. The low voltage circuit breaker includes a contact system with a first contact and a second contact that are electrically connectable and disconnectable relative to one another. The first contact includes a body having a first layer and a second layer, wherein the first layer is arranged on the second layer and is configured to come in contact with the second contact for providing the electrical connection with the second contact. The first layer has a first material composition having an Ag content that is higher than an Ag content of a second material composition of the second layer. Further, the first material composition has a WC content that is lower than a WC content of the second material composition. 1. A low voltage circuit breaker , comprising:a contact system with a first contact and a second contact that are electrically connectable and disconnectable relative to one another,wherein the first contact includes a body having a first layer and a second layer, wherein the first layer is arranged on the second layer and is configured to come in contact with the second contact for providing the electrical connection with the second contact,wherein the first layer has a first material composition having an Ag content that is higher than an Ag content of a second material composition of the second layer, and wherein the first material composition has a WC content that is lower than a WC content of the second material composition.2. The low voltage circuit breaker according to claim 1 , wherein the first material composition includes claim 1 , in mass-% claim 1 , Ag: 30 to 80 claim 1 , W: 25 to 65 claim 1 , Ni: 0 to 40 claim 1 , Co: 0 to 40 claim 1 , Cu: 0 to 40 claim 1 , C: 1.5 to 5 claim 1 , Cr: 0 to 20 claim 1 , Mo 0 to 20 claim 1 , the balance being Fe and inevitable impurities claim 1 , wherein Ag claim 1 , W claim 1 , Ni claim 1 , Co claim 1 , Cu claim 1 , C claim 1 , Cr and Mo are included in a total amount of at ...

Double-Sided Metal Mesh Conductive Particle and Pushbutton Having the Same

A double-sided metal mesh conductive particle and a pushbutton having the double-sided metal mesh conductive particle. The double-sided metal mesh conductive particle includes a first metal mesh layer, a first adhesive layer, a base layer, a second adhesive layer, and a second metal mesh layer arranged sequentially from top to bottom; an upper surface of the first metal mesh layer has a multiple of first conductive bumps, and a lower surface of the second metal mesh layer has a multiple of second conductive bumps. The double-sided metal mesh conductive particle ensures a reliable contact with a circuit and provides a good electrical conductivity and a double-sided conduction. When the conductive particle is installed to a pushbutton with an electrical contact function, a double-sided conduction can be achieved to prevent the conductive particle from being installed in a wrong direction or affecting the electrical conductivity.

STRETCHABLE CONDUCTIVE COMPOSITES FOR USE IN SOFT DEVICES

An elastically-deformable, conductive composite using elastomers and conductive fibers and simple fabrication procedures is provided. Conductive elastomeric composites offer low resistance to electrical current and are elastic over large (>25%) extensional strains. They can be easily interfaced/built into structures fabricated from elastomeric polymers. 1. A conductive elastomeric composite , comprising:a plurality of conductive fibers embedded in an elastomeric substrate providing a conductive pathway in the composite;wherein the conductive fibers have a majority fiber axis and the majority fiber axis defines a first conductive pathway in the composite,wherein the composite exhibits anisotropic mechanical and electrical properties.2. The conductive elastomeric composite of claim 1 , wherein the conductive fibers comprise a bundled assembly of non-woven or non-braided or non-cabled metal fibers.3. The conductive elastomeric composite of claim 1 , wherein the conductive fibers comprise carbon fibers.4. The conductive elastomeric composite of claim 1 , wherein the conductive fibers comprise conductive polymer fibers.5. The conductive elastomeric composite of claim 1 , wherein the conductive fibers are selected from the group of metal filaments claim 1 , carbon filaments claim 1 , woven wire mats claim 1 , helical wire coils claim 1 , and wires bundled at the ends and fanned out in between.6. The conductive elastomeric composite of claim 1 , wherein the conductive fibers comprise metal wool.7. The conductive elastomeric composite of claim 1 , wherein a conductive pathway transverse to the first conductive pathway has a lower conductivity than that of the first conductive pathway.8. The conductive elastomeric composite of claim 1 , wherein the conductive fibers have a length sufficient to span the conductive pathway.9. The conductive elastomeric composite of claim 1 , wherein the conductive fibers have a length in the range of 1 mm to 100 cm.10. The conductive ...

SWITCHING CONTACTOR

A switching electrical power contactor having a bi-blade type switch, has ferrous plates attached to the blades to increase the current carrying capacity and reduce the resistance of the switch. The contacts of the switches are arranged in pairs with at least one pair of contacts being arranged to close before another pair of contacts. 1. An electrical contactor comprising:a first terminal connected to a fixed contact on a face of a first fixed conductive member;a second terminal;a first movable arm of electrically conductive material connected to the second terminal, and carrying a movable contact at an end remote from the connection to the second terminal, the movable contact and the fixed contact being arranged in a first switch pair of contacts and forming a first switch;a third terminal connected to a fixed contact on a face of a second fixed conductive member;a fourth terminal;a second movable arm of electrically conductive material connected to the fourth terminal, and carrying a movable contact at an end remote from the connection to the fourth terminal, the movable contact and the fixed contact being arranged in a second switch pair of contacts and forming a second switch; andan actuating arrangement arranged to move the movable arms so as to open and close the switches,wherein the actuating arrangement is arranged to close the first switch pair of contacts after closing the second switch pair of contacts by moving the movable arms unevenly.2. The electrical contactor of claim 1 , further comprising a plurality of first movable arms and a plurality of second movable arms.3. The electrical contactor of claim 1 , wherein each movable arm comprises a plurality of longitudinal sections claim 1 , each provided with a movable contact at the remote end and arranged to engage with a corresponding fixed contact claim 1 , the current flow in the arms being substantially equally divided between the sections thereof.4. The electrical contactor of claim 1 , wherein the ...

CURRENT PATH PART FOR AN ELECTRIC SWITCHING DEVICE

A part of a current path is for an electric switching device. In an embodiment, the part of the current path was produced in layers by way of a 3D printing method. 1. A current path part for an electrical switching device , the current path part having been produced layer by layer by way of a 3D printing method.2. The current path part of claim 1 , wherein the current path part was produced from at least two different materials.3. The current path part of claim 2 , wherein the current path part was produced from at least two different materials that differ in terms of mechanical strength claim 2 , electrical conductivity or magnetic properties.4. The current path part of claim 1 , wherein the current path part includes at least one cavity.5. The current path part of claim 1 , wherein a cross section of the current path part is variable.6. The current path part of claim 1 , wherein a prefabricated component was integrated on or in the current path part during the layer-by-layer production.7. The current path part of claim 6 , wherein the prefabricated component is an axle or a bearing bush.8. The current path part of claim 1 , wherein the current path part was produced from a material that has different physical properties.9. The current path part of claim 8 , wherein the difference in the physical properties of the material is the conductivity of the material.10. The current path part of claim 1 , wherein the current path part is a contact lever claim 1 , a fixed contact or a busbar.11. The current path part of claim 10 , wherein the contact lever is provided with at least one integrated contact surface.12. The current path part of claim 2 , wherein the current path part includes at least one cavity.13. The current path part of claim 2 , wherein a cross section of the current path part is variable.14. The current path part of claim 3 , wherein a cross section of the current path part is variable.15. The current path part of claim 2 , wherein a prefabricated ...

Contact element

An electric contact element (1,12) for an arcing contact (2,7) comprising a contact body (3,13) arranged to be applied against a second contact element (4,15), where the contact body comprises a Mn+1AXn- material, wherein M is at least one transition metal, A is at least one element selected from group 13-17 in the periodic table, X is C and/or N, and n is 1,2,3 or higher. A method of making a contact element comprising a contact body comprising a Mn+1AXn-material. Use of an electric contact element comprising a contact body comprising a Mn+1AXn-material in an arcing contact.

电接点、连接器以及电接点的制造方法

本发明所涉及的电接点是使用在包含电阻率为1.59×10 ‑8 Ωm以上且9.00×10 ‑7 Ωm以下的金属材料的基材上具有包含碳材料的层的电接点材料来制作而成的电接点，其特征在于，上述碳材料是石墨烯单层体或者层叠有多个该石墨烯单层体而成的石墨烯层叠体。包含上述碳材料的层的厚度优选为1.0mm以下。上述金属材料优选为从由银、铜、金、铝、镍、锡和它们的合金以及不锈钢组成的组中选择。

Способ нанесения электроэрозионностойких покрытий на основе серебра, кобальта и нитридов кобальта на медные электрические контакты

Изобретение относится к формированию электроэрозионностойких покрытий на медных электрических контактах и может быть использовано в электротехнике. Способ включает электрический взрыв двухслойного композиционного электрически взрываемого проводника, один из слоев которого состоит из серебряной фольги массой 60-360 мг, а второй слой - из кобальтовой фольги, равной 0,5-2,0 массы первого слоя, формирование из продуктов взрыва импульсной многофазной плазменной струи, оплавление ею поверхности медного электрического контакта при поглощаемой плотности мощности 4,5-6,5 ГВт/м2, осаждение на поверхность продуктов взрыва и формирование на ней покрытия системы Co-Ag, азотирование в течение 3-5 ч при температуре 500-600°С и последующую импульсно-периодическую электронно-пучковую обработку поверхности покрытия при поглощаемой плотности энергии 40-60 Дж/см2, длительности импульсов 150-200 мкс и количестве импульсов 10-30. Изобретение направлено на получение электроэрозионностойких покрытий с высокой электропроводностью, электроэрозионной стойкостью и адгезией с подложкой на уровне когезии. 3 ил., 2 пр. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 768 806 C1 (51) МПК C23C 4/10 (2006.01) C23C 4/134 (2016.01) H01H 1/021 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C23C 4/10 (2022.02); C23C 4/134 (2022.02); H01H 1/021 (2022.02) (21)(22) Заявка: 2021131732, 28.10.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 24.03.2022 2 7 6 8 8 0 6 R U Адрес для переписки: 654007, Кемеровская обл. - Кузбасс, г. Новокузнецк, Центральный р-н, ул. Кирова, зд. 42, ФГБОУ ВО "Сибирский государственный индустриальный университет", ведущему специалисту по защите интеллектуальной собственности Володиной О.Ф. (56) Список документов, цитированных в отчете о поиске: RU 2750256 C1, 24.06.2021. RU 2750156 C1, 24.06.2021. RU 2699487 C1, 05.09.2019. RU 2750256 C1, 24.06.2021. TW 1449809 B, 21.08.2014. (54) СПОСОБ НАНЕСЕНИЯ ...

Contact elements and contact devices

전류가 접촉 소자와 접촉 부재 사이에 흐르게 하기 위해 접촉 부재 (2) 에 대하여 전기 접촉을 이루기 위한 접촉 소자 (1) 는 상기 접촉 부재에 대하여 적용되는 접촉층 (4) 으로 코팅된 하나 이상의 접촉 표면을 갖는 본체 (3) 를 포함한다. 접촉층은 비결정성 탄소 매트릭스 및 그 사이에 끼워진 하나 이상의 금속 탄화물의 나노 크기, 즉 1 ~ 100 ㎚ 범위의 치수를 갖는 결정을 갖는 나노복합 막을 포함한다 The contact element 1 for making electrical contact with respect to the contact element 2 in order to allow a current to flow between the contact element and the contact element comprises at least one contact surface coated with a contact layer 4 applied to the contact element. It has a main body 3 which has. The contact layer comprises a nanocomposite film having a amorphous carbon matrix and crystals having a nano size of one or more metal carbides sandwiched therebetween, i.e., a dimension in the range of 1 to 100 nm.

Switching contactor

本发明提供一种电接触器，包括：第一端子，所述第一端子与分别位于一个固定导电体的两个相反表面的一对定触头连接；第二端子；与所述第二端子连接的一对导电的动臂，每个动臂的远离所述第二端子的连接处的末端具有动触头；所述两个动触头与两个定触头分别形成并联的第一开关和第二开关。其中，所述第一开关总是比第二开关先闭合，比第二开关先断开。实施本发明，电接触器的部分动触头、定触头先进行闭合与断开，该种触头承担了电流切换与电流承载功能。其他动触头、定触头承担电流承载功能。因此，可以减小部分动触头、定触头的尺寸或者其表层银合金的厚度，从而降低成本。

Hydrogel network

The invention provides a hydrogel network comprising a plurality of hydrogel objects, wherein each of said hydrogel objects comprises: a hydrogel body, and an outer layer of amphipathic molecules, on at least part of the surface of the hydrogel body, wherein each of said hydrogel objects contacts another of said hydrogel objects to form an interface between the contacting hydrogel objects. A process for producing the hydrogel networks is also provided. The invention also provides an electrochemical circuit and hydrogel component for mechanical devices comprising a hydrogel network. Various uses of the hydrogel network are also described, including their use in synthetic biology and as components in electrochemical circuits and mechanical devices.

Hydrogel network

The invention provides a hydrogel network comprising a plurality of hydrogel objects, wherein each of said hydrogel objects comprises: a hydrogel body, and an outer layer of amphipathic molecules, on at least part of the surface of the hydrogel body, wherein each of said hydrogel objects contacts another of said hydrogel objects to form an interface between the contacting hydrogel objects. A process for producing the hydrogel networks is also provided. The invention also provides an electrochemical circuit and a hydrogel component for mechanical devices comprising a hydrogel network. Various uses of the hydrogel network are also described, including their use in synthetic biology and as components in electrochemical circuits and mechanical devices.

Electrical contact materials and method for preparing the same

본 발명은 (i) 은(Ag), 구리(Cu), 니켈(Ni) 및 금(Au)으로 이루어진 군에서 선택된 1종 이상의 금속; (ii) 산화카드뮴, 산화인듐, 산화주석, 산화아연 또는 이들의 혼합물인 금속산화물; 및 (iii) 은 나노 입자가 코팅된 탄소나노튜브를 포함하며, 상기 은 나노 입자의 입자 크기가 3 내지 5nm이며, 상기 금속 및 금속산화물 전체 합계 100중량%를 기준으로, 상기 금속의 함량이 75중량% 내지 85중량%이고 상기 금속산화물의 함량이 15중량% 내지 25중량%이고, 상기 금속 및 금속산화물 전체 합계 100중량부 대비, 상기 탄소나노튜브의 함량이 0.1중량부 내지 0.5중량부인 전기접점재료 및 이의 제조방법; (i) 은(Ag), 구리(Cu), 및 금(Au)으로 이루어진 군에서 선택된 1종 이상의 금속 및 니켈(Ni)의 합금; 및 (ii) 입자 크기가 3 내지 5nm인 은 나노 입자가 코팅된 탄소나노튜브를 포함하며, 상기 합금 전체 합계 100중량%를 기준으로, 상기 금속의 함량이 55중량% 내지 65중량%이고 상기 니켈(Ni)의 함량이 35중량% 내지 45중량%이고, 상기 합금 전체 합계 100 중량부 대비, 상기 탄소나노튜브의 함량이 0.1중량부 내지 0.5중량부인 전기접점재료를 제공한다. (I) at least one metal selected from the group consisting of silver (Ag), copper (Cu), nickel (Ni) and gold (Au); (ii) metal oxides such as cadmium oxide, indium oxide, tin oxide, zinc oxide, or mixtures thereof; And (iii) silver nanoparticles coated with carbon nanotubes, wherein the silver nanoparticles have a particle size of 3 to 5 nm, and the content of the metal is 75 Wherein the content of the carbon nanotubes is 0.1 to 0.5 parts by weight based on 100 parts by weight of the total of the metal and the metal oxides, and the content of the metal oxide is 15 to 25% Materials and methods for their manufacture; (i) an alloy of at least one metal selected from the group consisting of (Ag), copper (Cu), and gold (Au) and nickel (Ni); And (ii) silver nanoparticles coated with silver nanoparticles having a particle size of 3 to 5 nm, wherein the content of the metal is 55% by weight to 65% by weight based on 100% by weight of the total alloy, (Ni) is 35 wt% to 45 wt%, and the content of the carbon nanotubes is 0.1 wt% to 0.5 wt% with respect to 100 wt% of the total alloy.

Electrical contact for cadmium tellurium component

一种用于碲化镉部件，尤其是碲锌镉部件的电触点包括碲化镉部件、形成于碲化镉部件(10)上的第一层(21)，其中，第一层(21)包括铟以及直接或间接接合到第一层(21)以与第一层(21)电触点的接触媒介(30)。接触媒介可以是经由贵金属屏蔽层间接结合到第一层的钉头凸点或导电粘合剂互连。

Electric contact materials, production methods thereof and electric contacts used these

The present invention provides inexpensive electric contact materials having higher hardness and higher melting point and being more excellent in the points of wear resistance and environmental resistance over the electric contact materials of Ag type, Au type, platinum group type, etc. having been used so far, production methods thereof and electric contacts used said contact materials. In the electric contact materials of the invention, basically, a covering layer having at least one selected from transition metals of groups IVa (Ti, Zr, Hf, etc.), Va (V, Nb, Ta, etc.) and VIa (Cr, Mo, W, etc.) as a major ingredient is formed on the substrate as an electric contact in a thickness of 0.03 to 100 μm, and, if need be, a fixed intermediate layer is formed between said covering layer of electric contact and substrate or a fixed surface layer is formed on the outside of covering layer of electric contact, thus aiming at further improvement in the characteristics of contact. Such covering layer of electric contact can be formed by chemical vaporization or physical vaporization such as plasma CVD, sputtering, ion assist vaporization, ion plating, laser beam sputtering or the like and, by making the conditions of these vaporizations appropriate, it is possible to produce the electric contact materials having excellent characteristics of contact.

Electric contact materials, production methods thereof and electric contacts used these

The present invention provides inexpensive electric contact materials having higher hardness and higher melting point and being more excellent in the points of wear resistance and environmental resistance over the electric contact materials of Ag type, Au type, platinum group type, etc. having been used so far, production methods thereof and electric contacts used said contact materials. In the electric contact materials of the invention, basically, a covering layer having at least one selected from transition metals of groups IVa (Ti, Zr, Hf, etc.), Va (V, Nb, Ta, etc.) and VIa (Cr, Mo, W, etc.) as a major ingredient is formed on the substrate as an electric contact in a thickness of 0.03 to 100 μm, and, if need be, a fixed intermediate layer is formed between said covering layer of electric contact and substrate or a fixed surface layer is formed on the outside of covering layer of electric contact, thus aiming at further improvement in the characteristics of contact. Such covering layer of electric contact can be formed by chemical vaporization or physical vaporization such as plasma CVD, sputtering, ion assist vaporization, ion plating, laser beam sputtering or the like and, by making the conditions of these vaporizations appropriate, it is possible to produce the electric contact materials having excellent characteristics of contact.

Mechanism For Electrical Device

A mechanism for an electrical device, including a plurality of metal parts which are not arranged for conducting an electrical current of which a first part includes a first contact surface and a second part includes a second contact surface arranged to move in relation to, and in contact with, the first contact surface. At least one of the first and second parts includes a Graphene and Related Materials (GRM) at its contact surface, in a metal-GRM composite.

Gradiental protective coating

FIELD: electricity. SUBSTANCE: increasing the values of switching power and the service life of electrical contacts with the proposed protective coating is the technical result of the invention. The protective coating of the electrical contacts is made on the basis of a binary electrolytic W-Ni alloy deposited on a nickel substrate in which the W content increases linearly from 0% at the edge of coating-substrate up to 50% at the outer edge of the coating, which provides high coating resistance to delamination. EFFECT: improving the performance of mentioned devices. 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 629 954 C2 (51) МПК H01H 1/02 (2006.01) H01H 1/021 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015156139, 28.12.2015 (24) Дата начала отсчета срока действия патента: 28.12.2015 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 28.12.2015 (43) Дата публикации заявки: 04.07.2017 Бюл. № 19 2 6 2 9 9 5 4 R U (54) ГРАДИЕНТНОЕ ЗАЩИТНОЕ ПОКРЫТИЕ (57) Реферат: Изобретение относится к области электротехники, а именно к защитному покрытию электрических контактов, например магнитоуправлемых контактов (герконов), микроэлектромеханических (МЭМС) коммутаторов, слаботочных и сильноточных контактов коммутационных приборов, электромагнитных реле, и может быть использовано для улучшения эксплуатационных свойств указанных устройств. Повышения значений коммутируемой мощности и срока Стр.: 1 (56) Список документов, цитированных в отчете о поиске: JPH0562555A,12.03.1993. JPH11213787 A, 06.08.1999. BG 63525 B1, 31.10.2008. JP 2013134889 A, 08.07.2013. RU 2546940 C2, 10.04.2015. RU 2215342 C2, 27.10.2003. GB 959498 A, 03.06.1964. службы электрических контактов с предложенным защитным покрытием является техническим результатом изобретения. Защитное покрытие электрических контактов выполнено на основе бинарного электролитического сплава W-Ni, нанесенного на никелевую подложку, в котором содержание W ...

Methods for manufacturing a stud of an electric contact and an electric contact

The method of producing an electrical contact pad comprising a support pad and a contact layer, comprises depositing a first powder (1) on the support pad to form the contact layer by cold gas dynamic spraying. The first powder containing particles comprises grains (10-40 vol.%) of a refractory material embedded in a matrix based on the conductive metal including silver or copper, pure metal particles corresponding to the conductive metal matrix, and particles comprising grains of a doping agent embedded in a metal matrix, which corresponds to the metal conductive metal matrix. The method of producing an electrical contact pad comprising a support pad and a contact layer, comprises depositing a first powder (1) on the support pad to form the contact layer by cold gas dynamic spraying. The first powder containing particles comprises grains (10-40 vol.%) of a refractory material embedded in a matrix based on the conductive metal including silver or copper, pure metal particles corresponding to the conductive metal matrix, and particles comprising grains of a doping agent embedded in a metal matrix, which corresponds to the metal conductive metal matrix. The doping agent is embedded with grains of refractory material in their matrix of conductive metal. The particles comprising grains of refractory material are obtained by the process including physical vapor deposition, chemical vapor deposition and electroless process, and by chemical precipitation on particles in suspension. The contact support is present in the form of precut individual pieces. Independent claims are included for: (1) a method for producing an electrical contact comprising a contact support and a pad; (2) an electrical contact; and (3) an electrical contact pad.

Switching contactor

A switching electrical power contactor (10) having a bi-blade type switch, has ferrous plates (40) attached to the blades to increase the current carrying capacity and reduce the resistance of the switch. The contacts (60, 62) of the switches are arranged in pairs with at least one pair of contacts (60) being arranged to close before another pair of contacts (62).

Electrical contact elements for systems subject to friction - have oxide particles embodied in surface layer deposited electrolytically

The parent patent describes elements for electrical contacts subject to rubbing, with oxide particles enrobed in a thin surface layer. As the foundation metal for the elements a good conductor such as silver or copper is used, to which a small proportion of a more readily oxidisable material is added. The element is then oxidised by heat to give a contact standing up well to wear, esp. by the elimination of the microwelding effect, without it being necessary to have an alloy as a basis with a much higher resistance than copper or silver. In this addn. the technique consists in forming the element of the desired conducting metal without having regard to the oxide particles necessary. The element is then coated electrolytically at least over its working surface area, as regards the flow of the current, with a layer of the metal of the foundation in which the particles are made to appear. As the metal of the base is being deposited, a very small amt. of an additional metal which is more readily oxidisable is mixed in simultaneously. The element coated in this way is treated thermically so as to produce the phenomenon of internal oxidation described in the parent patent. Oxide particles may be incorporated in the surface layer by maintaining such particles in suspension in the bath during depositing. Avoids the necessity of having to add to the foundation metal any material which would alter the characteristics and esp. the resistance desired for the intended application.

Electrical contacts

CONTACT COATING FOR ELECTRICAL CONTACTS FOR LOW CURRENTS

Patent FR2421452B1

electrode subjected to the action of electric discharges

Patent FR742270A

Contact material for electrical switches

Contact material

Patent FR2253261A1

In the electrical contact, the contact surface consists of transition metal carbides and/or transition metal nitrides. As a result a contact is obtained which does not require use of noble metals, has a high melting point and good electrical conductivity. A method for producing it comprises exposing the contact to transition metal halides, methane and/or hydrogen plus nitrogen at elevated temperatures.

Electric contact material, method of producing said material, and electric contact produced therefrom

A cheap electric contact material superior in hardness, melting point abrasion resistance and environmental resistance to the conventional electric contact materials such as Ag, Au and the platinum group elements. The invention further provides a method of producing said contact material and electric contacts produced therefrom. Basically, the electric contact material of the invention includes a substrate on which an electric contact is formed of a 0.03 - 100 νm thick coating composed mainly of one or more transition metals of the group IVa (Ti, Zr, Hf, etc.), group Va (V, Nb, Ta, etc.), group VIa (Cr, Mo, W, etc.). The material may include a predetermined intermediate layer between said electric contact coating layer and the substrate, or a predetermined surface layer outside the electric contact coating layer to further improve contact characteristics. The electric contact coating layer can be formed by the chemical vapor deposition or the physical vapor deposition such as plasma CVD, sputtering, ion-assisted vapor deposition, ion plating, laser beam sputtering, etc. By properly selecting the vapor deposition conditions, it is possible to produce an electric contact material having excellent contact characteristics.

Switch

The present invention relates to a switch for electrically connecting at least two lines on demand, the switch having: a housing with at least two terminals for connecting the lines; a first conductor, connected to a first terminal, and a second conductor, connected to a second terminal; and a connecting conductor which can be brought into contact with the two conductors by means of an actuating device in order to close the switch, wherein at least one of the conductors and the connecting conductor are contacted indirectly via a dielectric in the closed state of the switch.

Method for producing a liquid metal composite contact

Flexible switching devices

An electronic resistor user interface comprises flexible conductive materials and a flexible variably resistive element capable of exhibiting a change in electrical resistance on mechanical deformation and is characterised by textile-form electrodes (10,12), a textile form variably resistive element (14) and textile-form members (16) connective to external circuitry.

Method for selecting an additive for electrical contacts

An additive for an electrical contact is selected according to a method wherein the additive has a substantially smaller contact angle with a liquid phase of a ductile metal than the weld inhibiting material has with the liquid phase.

Method of manufacturing composition for point of contact and point of contact for keypad

본 발명은 초저항 접점용 조성물을 제조하는 방법에 관한 것으로서, 도전성 실리콘과 분말 상태의 도전성 필러를 롤 밀 설비를 이용하여 일정시간 배합하는 제1 단계와; 상기 제1 단계를 거쳐 배합된 배합물을 막대 형태의 도전성 필러와 배합하여 일정시간 한방향으로 회전시켜 막대 형태의 도전성 필러에 대하여 방향성을 부여하는 제2 단계와; 상기 제2 단계를 거쳐 배합된 배합물을 압착기로 압착하는 제3 단계를 포함하여 이루어진 것을 특징으로 한다. 본 발명에 따르면, 전기적 특성이 우수할 뿐만 아니라 접점 부착 작업 시의 작업성을 개선할 수가 있으며 스크래치로 인한 도금막의 부식 등의 원인을 원천적으로 차단할 수 있다. 또한, 접점에 엠보층을 형성하여 먼지나 이물질로 인해 회로 인쇄부와의 접촉 불량이나 수명 저하 등을 최소화할 수 있다. The present invention relates to a method for producing a composition for an ultra-resistance contact, comprising the steps of: mixing conductive silicone and a conductive filler in a powder form for a predetermined time using a roll mill; A second step of blending the compounded compound with the conductive filler in the rod form and rotating the compounded form in one direction for a predetermined period of time to impart directionality to the rod-shaped conductive filler; And a third step of compressing the compounded compound through the second step with a compactor. According to the present invention, it is possible not only to have excellent electrical characteristics, but also to improve the workability in the operation of attaching the contacts, and to prevent the corrosion of the plated film due to the scratches. In addition, the emboss layer is formed at the contact point, so that it is possible to minimize the contact failure and the life span of the circuit printing portion due to dust or foreign matter.

Switch, manufacturing method thereof, and electrostatic relay

Process for the production of highly erosion-resistant composite materials for electrical contacts

Highly erosion-resistant composite materials for electrical contacts of copper or silver with particles of titanium boride and/or zirconium diboride are obtained, in that boride particles with an average particle size of 1.5-8.5 mu m are electrolessly coated in a reduction electrolyte with copper or silver. The proportion of copper or silver in the material obtained after pressing and sintering the coated particles is 15-55 volume percent.

Contact assembly for electrical devices and method for making

A contact assembly for an electrical device and a method for making such an assembly are presented. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above.

High density sintered metal alloys for electrical contacts subjected to high loads

Methods for manufacturing an electrical contact pad and electrical contact

The present invention relates to a method for manufacturing an electrical contact pad, including a pad mounting and at least one contact layer, and moreover relates to a method for manufacturing an electrical contact, including a contact mounting and at least one contact layer. Said methods include a step of depositing, by means of cold gas dynamic spraying, a first powder onto said pad or contact mounting so as to form said contact layer, said first powder containing at least particles including grains made of at least one refractive material, said grains being built into a matrix made of conductive metal selected from among silver or copper. The invention also relates to the pads and to the electrical contacts obtained in said respective manufacturing methods.

Relay contact combination suitable for inductive and capacitive load

适应感性及容性负载的继电器触点组合，涉及电触点材料。提供可解决继电器动作过程中触点粘接而失效等问题，可按电子逸出功大小和性能优势互补进行组合的一种适应感性及容性负载的继电器触点组合。所述适应感性及容性负载的继电器触点组合为动、静触点采用不同复合材料的组合，复合材料包括AgSnO 2 、AgCdO、AgZn、AgNi等。组合可按电子逸出功的要求选择电子能量大小不同的电触点组合继电器动、静触点。有效地提高原有继电器的应用特性，产生了互补效应和新的接触电效应；且有效解决继电器的粘接问题，大大延长继电器在感性及容性负载情况下的使用寿命。适应各种继电器，依据各种继电器的使用要求选择不同材料触点进行组合即可。

Electrical contact with anti tarnish oxide coating

The invention relates to an electrical contact t comprising a strip substrate comprising a conductive layer of a metal or an alloy provided on the surface of the substrate and an oxide layer provided on the conductive layer. By means of the oxide layer the underlying metal or alloy layer is protected from reaction with elements such as oxide or sulphur in the ambient air. The invention also relates to products such as fuel cells and solar cells comprising the electrical contact.

Corrosion resistant electric contacts

Silver-tungsten electrical contact material with high dispersity and high compactness and preparation method thereof

本发明公开了一种高弥散度和高致密性的银钨电触头材料的制备方法，通过包覆前期钨粉和添加物球磨预处理能够有效分散添加物，使添加物均匀生长在钨粉体表面，最大程度发挥添加物作用，有效地改善了熔体对骨架的浸润角，使浸润性能愈好。同时包覆粉高能破碎处理，能够有效去除包覆粉制备过程中内在的气孔、增加了粉体的松装密度，使初压压坯内作为渗入通道的孔隙尺寸分布均匀，互相连通，熔体能均匀渗入，达到完全致密、消除缺陷的效果。骨架熔渗后断面无孔洞、无聚集、无增强相颗粒裸露，银与钨形成良好结合，提高银钨材料的弥散性和致密性。

Switch contact element and preparation method therefor

A switch contact element, having a layered structure comprising three layers: the bottom layer is silicone rubber, the middle layer is a continuous base metal sheet layer, and the upper layer is a discontinuous (stripe-shaped, raised-point-shaped or lattice-shaped) precious metal plated layer or a double-metal composite layer of a discontinuous base metal plated layer and a precious metal plated layer. The width of each stripe is 0.05-2 mn, the distance between the stripes is 0.2-2 mn, the diameter of a top surface of each raised point is 0.2-2 mn, the distance between the raised points is 0.05-1 mn, and the area of holes between the lattices is 0.05-5 mm 2 . The thickness of the bottom layer is greater than that of the middle layer, the thickness of the middle layer is greater than that of the upper layer, and the thickness of the upper layer meets the conditions that the conductive current is greater than safe current of conductive contacts on a circuit board, and the service life of a switch for the design is ensured. A preparation method for the switch contact comprises a process of preparing a local plating blocking layer which is removed by preferably selecting an alkaline solution dissolving method. The switch contact element has desirable current conducting stability, dust fastness and oil stain resistance and relatively low raw material cost.

A contact element and a contact arrangement

An element (20) for making an electric contact to another contact member (19) for enabling an electric current to flow between said element (20) and said contact member comprises a body having at least a contact surface thereof coated with a contact layer (21) to be applied against said contact member. This contact layer comprises a continuous film comprising a laminated multielement material having strong bonds, such as covalent or metallic bonds, within each atomic layer and weaker bonds, through larger bonding distance or for example as van der Waals bonds or hydrogen bonds, between at least some adjacent atomic layers thereof.

A contact element and a contact arrangement

A contact element (1) for making an electric contact to a contact member (2) for enabling an electric current to flow between said contact element and said contact member comprises a body (3) having at least one contact surface thereof coated with a contact layer (4) to be applied against said contact member. The contact layer comprises a nanocomposite film having a matrix of amorphous carbon and crystallites of nano-size, i.e. with dimensions in the range of 1-100 nm, of at least one metal carbide embedded therein.

Flexible switching devices

FIELD: electrical engineering; switching devices including flexible ones. SUBSTANCE: user interface has fabric-like flexible conducting electrodes connected to external circuit and fabric-like variable-resistance component capable of exposing resistance variation in response to mechanical strain and made in the form of coating applied to fabric interleaved between mentioned electrodes. Coating is made of conducting or variable-resistance material and elastomer binder. As an alternative, coating can be applied to first fabric-like flexible conducting electrode and made of one or more second fabric-like flexible conducting electrodes disposed so that they abut against mentioned fabric-like variable-resistance electrode and connected to external circuit. EFFECT: improved design. 34 cl, 4 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 273 911 (13) C2 (51) ÌÏÊ H01H 3/14 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2002133956/09, 17.05.2001 (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 17.05.2001 (30) Ïðèîðèòåò: 18.05.2000 GB 0011829.9 (72) Àâòîð(û): ËÀÑÑÈ Äýâèä (GB), ÄÆÎÓÍÇ Äàéàíí (GB), ËÅÔÒËÈ Ñòèâåí (GB) (43) Äàòà ïóáëèêàöèè çà âêè: 20.04.2004 (45) Îïóáëèêîâàíî: 10.04.2006 Áþë. ¹ 10 2 2 7 3 9 1 1 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: GB 2343516 À, 10.05.2000. RU 2134443 C1, 10.08.1999. RU 2025811 C1, 30.12.1994. ÅÐ 0177267 À, 09.04.1986. US 3794790 A, 26.02.1974. DE 3805887 C, 21.09.1989. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 18.12.2002 2 2 7 3 9 1 1 R U (87) Ïóáëèêàöè PCT: WO 01/88935 (22.11.2001) C 2 C 2 (86) Çà âêà PCT: GB 01/02183 (17.05.2001) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á. Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Þ.Ä.Êóçíåöîâó, ðåã.¹ 595 (54) ÃÈÁÊÈÅ ÏÅÐÅÊËÞ×ÀÞÙÈÅ ÓÑÒÐÎÉÑÒÂÀ (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê ýëåêòðè÷åñêèì ïåðåêëþ÷àþùèì óñòðîéñòâàì è, â ÷àñòíîñòè, ê êîíñòðóêöèè ãèáêèõ ...

Structural member of metallic material having surface exposed with danger of charging and device having same structural member

The contact rod of reinforcing

一种用于开关的接触棒(1)，所述接触棒具有第一接触棒区域，所述第一接触棒区域具有第一接触棒材料(11)，所述第一接触棒材料从接触棒的第一端部区段延伸至接触棒的第二端部区段，其中，所述接触棒(1)的第二端部区段邻接在接触体(2)上或者过渡至所述接触体中，并且具有第一接触棒材料的第一接触棒区域空心地设计并且因此构成第一空腔(15)，并且在所述第一空腔(15)中引入第二接触棒材料(12)，其中，所述第二接触棒材料(12)比第一接触棒材料(11)的刚度高。

Improvements in or relating to electrical switch contacts

788,177. Temperature-sensitive resistors. SOC. LE CARBONE LORRAINE, and MILLET, J. March 10, 1955 [March 18, 1954], No. 7058/55. Class 37. [Also in Group XXXVII] A switch contact comprises mixture of silver and a thermistor material consisting of 45 per cent each of cobalt and manganese oxides and 10 per cent of nickel oxide, the silver forming from 65 to 90 per cent of the whole.

Silver coated composite materials for movable contact parts and methods for their manufacture, and movable contact parts

Nickel-based electrical contact

NICKEL-BASED ELECTRICAL CONTACT Abstract Contacts comprising nickel and having a crystallographically disordered structure having electrical contact properties which render them suitable as replacements for gold contacts; disclosed contacts have low contact resistance even after prolonged exposure to an oxidizing ambient. Contacts comprising nickel and at least one glass-forming additive selected from boron, silicon, germanium, phosphorus, arsenic, antimony, or bismuth, are readily formed, e.g., as layers on substrates. A crystallographically disordered structure is produced in a contact surface layer at least upon exposure to an oxidizing ambient; alternatively, such desired structure can be produced by ion bombardment and even in the absence of glass-forming additives.

Material arrangement for electrical low-current contacts

Method for strengthening CuW alloy by in-situ autogenous titanium diboride

本发明公开了一种原位自生二硼化钛强化CuW合金的方法，将W粉、B粉以及诱导铜粉混合均匀，并压制成型，得到钨压坯；将钨压坯放入气氛烧结炉中烧结，获得钨骨架；将CuTi合金放在钨骨架上方后放入铺有石墨纸的石墨坩埚内，在烧结炉中进行熔渗，即得到原位自生二硼化钛强化CuW合金。本发明一种原位生成二硼化钛强化CuW合金的方法，通过采用烧结‑熔渗法在CuW材料中原位生成陶瓷相TiB 2 ，由于低逸出功陶瓷相的存在使电弧得到有效分散，从而提高了CuW触头材料的耐电弧烧蚀性能。

Electrical contact element

1444776 Making electrical contact elements; extruding G RAU 17 Oct 1973 [17 Oct 1972] 48450/73 Headings B3A and B3P [Also in Division H1] An electrical contact element is made of fibre impregnated material and at least its contact surface is shaped by plastic deformation. The fibre reinforced material may form the whole element or just the contact surface, Fig. 2 (not shown). The fibres extend unidirectionally and are substantially normal to the contact surface. The fibres may be all of the same material, e.g. a base metal, or of different materials. They are provided in a matrix material, e.g. silver. Suitable material combinations are silver/nickel, copper/tungsten and silver/titanium. The element is produced by upsetting a cut-off length of fibre impregnated wire. In the second embodiment the contact surface is cold welded to the stem which may be copper.

Switching contactor

本发明提供一种电接触器，包括：第一端子，所述第一端子与分别位于一个固定导电体的两个相反表面的一对定触头连接；第二端子；与所述第二端子连接的一对导电的动臂，每个动臂的远离所述第二端子的连接处的末端具有动触头；所述两个动触头与两个定触头分别形成并联的第一开关和第二开关。其中，所述第一开关总是比第二开关先闭合，比第二开关先断开。实施本发明，电接触器的部分动触头、定触头先进行闭合与断开，该种触头承担了电流切换与电流承载功能。其他动触头、定触头承担电流承载功能。因此，可以减小部分动触头、定触头的尺寸或者其表层银合金的厚度，从而降低成本。

Graphene composite material for sliding contact

FIELD: manufacturing technology.SUBSTANCE: invention relates to a metal composite material for sliding contact of a power switch. Metallographic composite product in the form of sliding contact, in which graphene flakes are dispersed in metal matrix, which is Ag, Al, Au, Pt, In, Sn or Cu, or their combination. Graphene is present in amount within range from 0.005 to 0.5 wt% graphene flakes have average long axis within range from 100 nm to 50 mcm.EFFECT: improved tribological properties.15 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 720 281 C1 (51) МПК B22F 1/00 (2006.01) B22F 9/24 (2006.01) H01H 1/023 (2006.01) B82Y 30/00 (2011.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B22F 1/00 (2020.02); B22F 9/24 (2020.02); H01H 1/023 (2020.02); B82Y 30/00 (2020.02) (21)(22) Заявка: 2019134766, 10.04.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 28.04.2020 (73) Патентообладатель(и): АББ ШВАЙЦ АГ (CH) 12.04.2017 EP 17166142.4 (56) Список документов, цитированных в отчете о поиске: CN 105575684 A, 11.05.2016. YEE MAXINE SWEE-LI ET AL. Green synthesis of graphene-silver nanocomposite and its application as a potent marine antifouling agent. COLLOIDS AND SURFACES. Vol. 148, 09.09.2016, pp. 392401. RU 2536847 C2, 27.12.2014. RU 2012139358 A, 27.03.2014. (45) Опубликовано: 28.04.2020 Бюл. № 13 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12.11.2019 (86) Заявка PCT: 2 7 2 0 2 8 1 R U (87) Публикация заявки PCT: WO 2018/189146 (18.10.2018) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ГРАФЕНОВЫЙ КОМПОЗИЦИОННЫЙ МАТЕРИАЛ ДЛЯ СКОЛЬЗЯЩЕГО КОНТАКТА (57) Реферат: Изобретение относится к металлическому Cu, или их сочетание. Графен присутствует в композиционному материалу для скользящего количестве в пределах диапазона от 0,005 до 0,5 контакта переключателя электропитания. мас.%, чешуйки графена имеют среднюю ...

Sliding switch contact structure

Disclosed is a structure of a sliding switch contact : The sliding switch contact has a movable contact and a fixed contact which are formed of a stainless steel, an Fe-Ni alloy, an Fe-Ni-Co alloy, or an Fe-Ni-Cr alloy. With such structure, a contact material is provided that is usable in a high-temperature oil contained within a transmission, an engine or a brake hydraulic system of an automotive vehicle.

Electric contact element and method for producing an electric contact element

The present invention relates to a method for producing an electric contact element from a semifinished product and to the electric contact element and the corresponding semifinished product. The method for producing an electric contact element (100), which can be electrically contacted by a mating contact, comprises the following steps: producing a wire (120) from a first electrically conductive material (112); coating the wire surface with a sheath (114) made of a second electrically conductive material; partially removing the sheath (114) in a direction along a longitudinal wire axis (118); forming at least one cylindrical semifinished product (110) by dividing the wire in a direction transverse to the longitudinal wire axis; fixing the semifinished product on a contact carrier (104) such that the second electrically conductive material is connected to the contact carrier; and reshaping the welded semifinished product so as to form the contact element (100), wherein a contact area (106), which is accessible for a mating contact, is formed by the first electrically conductive material.

Structure of sliding switch contact

Method for producing a powder

A method for producing a powder by pulverizing a stream of molten metal using a pulverization gas, which directly hits the molten metal stream, whereby a) a reactive gas is used as the pulverization gas such that a compound is formed by the reaction of the pulverization gas with the metal or an alloy component thereof and b) the temperature of the pulverization gas and the cooling speed are set such that the metal or the alloy component thereof is converted into the compound, to a substantial degree completely, in one step.

Electrical contacts with a reduced aluminum section

Electromechanical switching device wtih 2D layered material surfaces

An electromechanical switch comprises a first electrode 11 comprising layers 21 of a first 2D layered material exhibiting a first surface, and a second electrode 12 comprising layers 22 of a second 2D layered material exhibiting a second surface vis-à-vis or face to face with the first surface. Each of the 2D materials is electrically conducting and an actuator actuates one of the electrodes to modify a distance between the surfaces, to modify electrical conductivity transverse to the surfaces and enable current modulation between the electrodes. The electrodes may comprise a drain and a source and the actuator a gate electrode (fig 1,13). The surfaces may move parallel to each other, actuation modifying an overlap between them or move transversely with actuation modifying a transverse distance (fig 1, d). An active region comprising one of the surfaces may be surrounded by and level with an inactive region of insulating material (fig 10B, S5) such as hexagonal boron nitride. An actuatable electrode may pivot, flex, rotate and/or slide and comprise an anchored beam. Source and drain electrodes may be side-by-side and parallel to each other and bridged by a third electrode (fig 13, 122) that can rotate (fig 15). The 2D layer may comprise graphene, graphite, BN, MoS2, WS2, MoSe2, NbSe2 NbS2, NbTe2, TaS2, TaTe2 or TiSe2. Actuation may be electrostatic, piezoelectric, magnetic, by thermal deformation, or by material stress. The switch may be micro-electromechanical or nano-electromechanical.

Switching contactor

A switching electrical power contactor having a bi-blade type switch, has ferrous plates attached to the blades to increase the current carrying capacity and reduce the resistance of the switch. The contactor is incorporated on the outside of a mains meter enclosure or in a wall box for a mains meter, within the space defined by the sprung jaws of the meter socket.

GRADIENT PROTECTIVE COATING

On/off loadbreak switch

A method for assembling a switch apparatus including a main housing, a fixed contact supported by the main housing, a shaft supported by the main housing for pivotal movement relative thereto, a movable contact supported by the shaft for common movement therewith, and a motor assembly for moving the shaft relative to the main housing between a closed position wherein the movable contact engages the fixed contact and an open position wherein the movable contact is spaced from the fixed contact, the method comprising the steps of assembling the shaft and the movable contact to provide a shaft and contact assembly, locating the main housing in surrounding relation to the shaft and contact assembly, placing the movable contact in engagement with the fixed contact, and securing the shaft and contact assembly relative to the main housing.

Improvements in switching contactors (II)

Methods for manufacturing a stud of an electric contact and an electric contact

Electromechanical low voltage switch

The invention relates to an electromechanical low voltage switch comprising a moveable switching element (10) which comprises an electrically conductive support (12) and at least one contact electric piece (8, 9) which is arranged on said support (12), characterised in that said support (12) is made at least partially of a metal or an alloy, the density thereof being less than 5 g/cm 3 .

Contact material and its production method