Material with high resistance to wear

Material and method for the production of material with isotropic, mechanical properties and improved wear resistance and high hardness potential. Method includes producing in a powder metallurgical (PM) method a slug or ingot from a material of ledeburite tool steel alloy, and subjecting one of the slug or ingot or a semi-finished product produced from the slug or ingot to full annealing at a temperature of over 1100° C., but at least 10° C. below the fusing temperature of the lowest melting structure phase with a duration of over 12 hrs. In this manner, an average carbide phase size of the material is increased by at least 65%, a surface shape of the material is rounded and a matrix is homogenized. Method further includes subsequently processing the material into thermally tempered tools with high wear resistance occurs or into parts to which abrasive stress is applied.

PRESS HARDENED STEEL WITH SURFACE LAYERED HOMOGENOUS OXIDE AFTER HOT FORMING

A press-hardened steel is provided. The press-hardened steel has an alloy matrix including from about 0.01 wt. % to about 0.35 wt. % carbon, from about 1 wt. % to about 9 wt. % chromium, from about 0.5 wt. % to about 2 wt. % silicon, and a balance of iron. The alloy matrix is greater than or equal to about 95 vol. % martensite. A first layer is disposed directly on the alloy matrix. The first layer is continuous, has a thickness of greater than or equal to about 0.01 μm to less than or equal to about 10 μm, and includes an oxide enriched with chromium and silicon. A second layer is disposed directly on the first layer, and includes an oxide enriched with Fe. Methods of preparing the press-hardened steel are also provided. 1. A press-hardened steel comprising: carbon (C) at a concentration of greater than or equal to about 0.01 wt. % to less than or equal to about 0.35 wt. %,', 'chromium (Cr) at a concentration of greater than or equal to about 1 wt. % to less than or equal to about 9 wt. %,', 'silicon (Si) at a concentration of greater than or equal to about 0.5 wt. % to less than or equal to about 2 wt. %, and', 'a balance of iron (Fe),', 'the alloy matrix being greater than or equal to about 95 vol. % martensite;, 'an alloy matrix comprisinga first layer disposed directly on the alloy matrix, the first layer being continuous, having a thickness of greater than or equal to about 0.01 μm to less than or equal to about 10 μm, and comprising an oxide enriched with Cr and Si; anda second layer disposed directly on the first layer, the second layer comprising an oxide enriched with Fe.2. The press-hardened steel according to claim 1 , wherein the alloy matrix further comprises:manganese (Mn) at a concentration of greater than or equal to about 0.01 wt. % to less than or equal to about 3 wt. %,molybdenum (Mo) at a concentration of greater than or equal to about 0.01 wt. % to less than or equal to about 0.8 wt. %,niobium (Nb) at a concentration of greater than or equal to ...

METHOD FOR ROLLING/DRAWING NICKEL-FREE HIGH-NITROGEN STAINLESS STEEL MATERIAL, THIN SEAMLESS TUBE OF NICKEL-FREE HIGH-NITROGEN STAINLESS STEEL, AND METHOD OF MANUFACTURING THE SAME

Provided is a method of rolling/drawing a nickel-free high-nitrogen stainless steel material, the method including: an intermediate annealing process S in which a nickel-free high-nitrogen stainless steel material made of a fine grain structure having a maximum crystal grain size of 30 μm or less is annealed at a temperature of 900° C. or higher and 1000° C. or lower and then is air-cooled to room temperature; a rolling/drawing process S in which the nickel-free high-nitrogen stainless steel material is extended while being thinned or being reduced in diameter; and a final solution treatment process S in which the nickel-free high-nitrogen stainless steel material is heated to a temperature of 1200° C. or higher and 1400° C. or lower and then is air-cooled to room temperature. A nickel-free high-nitrogen stainless steel raw tube made of a fine grain structure having a maximum crystal grain size of 30 μm or less is subjected to plastic working according to the method of rolling/drawing the nickel-free high-nitrogen stainless steel material to obtain a thin seamless tube for the nickel-free high-nitrogen stainless steel stent. The thin seamless tube for the nickel-free high-nitrogen stainless steel stent is made of a fine grain structure having a maximum crystal grain size of 30 μm or less. 1. A method of rolling/drawing a nickel-free high-nitrogen stainless steel material , the method comprising:an intermediate annealing process in which a nickel-free high-nitrogen stainless steel material made of a fine grain structure having a maximum crystal grain size of 30 um or less is annealed at a temperature of 900° C. or higher and 1000° C. or lower and then is air-cooled to room temperature;a rolling/drawing process in which the nickel-free high-nitrogen stainless steel material is extended while being thinned or being reduced in diameter after the intermediate annealing process; anda final solution treatment process in which the nickel-free high-nitrogen stainless steel ...

COOLING METHOD AND DEVICE FOR COOLING A WIRE AND CORRESPONDING WIRE-PROCESSING INSTALLATION

Cooling device () for cooling a wire (), comprising a first chamber () and a second cooling chamber () through which the wire () passes. The device also comprises cooling liquid driving means () for driving the cooling liquid from the first chamber () to the second chamber () through at least one coding liquid inlet (). Through the driving means () and the cooling liquid inlet (), a jet of coding liquid is projected on the wire path at a mean speed of at least 0.6 m/s, and at a distance between 6 and 13 times the diameter of the wire (). Cooling is performed in an inert gas atmosphere inside the second chamber (). The invention also relates to a corresponding installation and a corresponding wire cooling method. 1. A cooling method for cooling a wire running along a wire path in a cooling device for cooling a wire , comprising:a first containing chamber for containing a cooling liquid, further comprising:a second cooling chamber comprising a wire inlet and a wire outlet arranged with respect to one another such that they define a wire path and at least one cooling liquid inlet and one cooling liquid outlet,cooling liquid driving means fluidically connecting said first and second chambers for driving said cooling liquid from said first chamber to said second chamber through said at least one cooling liquid inlet,said cooling liquid outlet furthermore extending into said first chamber, such that when said cooling device is in operation, the distal end of said cooling liquid outlet is submerged in the cooling liquid held in said first chamber,said driving means and the cross-section of said at least one cooling liquid inlet being dimensioned to project a jet of cooling liquid on said wire path, whereinthe device further comprises means for introducing inert gas, functionally associated with said second chamber to create an inert gas atmosphere inside said second chamber during the cooling of said wire, andthe method further comprises:a cooling liquid projection step, ...

HIGH STRENGTH GALVANIZED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME

A high strength galvanized steel sheet has a composition including, C: 0.02% or more and 0.30% or less, Si: 0.01% or more and 2.5% or less, Mn: 0.1% or more and 3.0% or less, P: 0.003% or more and 0.08% or less, S: 0.01% or less, Al: 0.001% or more and 0.20% or less, Ti: 0.03% or more and 0.40% or less and the balance being Fe and inevitable impurities, and a zinc-coated layer having a coating weight per surface of 20 g/mor more and 120 g/mor less. The concentration ratio of C to Ti (C/Ti) in a portion within 10 μm from the surface of the base steel sheet is 0.8 or more and 1.5 or less, and the total amount of oxides of one or more selected from Fe, Si, Mn, P, Al and Ti formed in a surface portion within 100 μm from the surface of the base steel sheet is 0.05 g/mor less. 1. A high strength galvanized steel sheet , composed of a steel sheet having a chemical composition comprising , by mass % , C: 0.02% or more and 0.30% or less , Si: 0.01% or more and 2.5% or less , Mn: 0.1% or more and 3.0% or less , P: 0.003% or more and 0.08% or less , S: 0.01% or less , Al: 0.001% or more and 0.20% or less , Ti: 0.03% or more and 0.40% or less and the balance being Fe and inevitable impurities , and a zinc-coated layer on both surfaces of the base steel sheet having a coating weight per surface of 20 g/mor more and 120 g/mor less , wherein the concentration ratio of C to Ti (C/Ti) in a portion within 10 μm from the surface of the base steel sheet immediately under the zinc-coated layer is , in terms of atomic ratio , 0.8 or more and 1.5 or less , and wherein the total amount of oxides of one or more selected from Fe , Si , Mn , P , Al and Ti formed in a portion within 100 μm from the surface of the base steel sheet immediately under the zinc-coated layer is , in terms of oxygen amount , 0.05 g/mor less per side.2. The high strength galvanized steel sheet according to claim 1 , wherein a solid solution Ti concentration in a portion within 10 μm from the surface of the base steel ...

NON-SCALING HEAT-TREATABLE STEEL AND METHOD FOR PRODUCING A NON-SCALING COMPONENT FROM SAID STEEL

A non-scaling heat-treatable steel with particular suitability for producing hardened or die-hardened components is disclosed, characterized by the following chemical composition in % by weight: C 0.04-0.50; Mn 0.5-6.0; Al 0.5-3.0; Si 0.05-3.0; Cr 0.05-3.0; Ni less than 3.0; Cu less than 3.0; Ti 0.010-≦0.050; B 0.0015-≦0.0040; P less than 0.10; S less than 0.05; N less than 0.020; remainder iron and unavoidable impurities. Further disclosed is a method for producing a non-scaling hardened component from the steel and a method for producing a hot strip from a steel. 129.-. (canceled)30. A non-scaling heat treatable steel , particularly suited for producing hardened or die hardened components , having the following chemical composition in weight %:C: 0.04-0.50Mn: 0.5-6.0Al: 0.5-3.0Si: 0.05-3.0Cr: 0.05-3.0Ni: less than 3.0Cu: less than 3.0Ti: 0.010-≦0.050B: 0.0015-≦0.0040P: less than 0.10S: less than 0.05N: less than 0.020remainder iron and unavoidable impurities.31. The non-scaling heat treatable steel of claim 30 , wherein Al+Si+Cr≧1 weight %.32. The non-scaling heat treatable steel of claim 31 , wherein Al+Si+Cr≧2 weight %.33. The non-scaling heat treatable steel of claim 32 , wherein Al+Si+Cr≧3 weight %.34. The non-scaling heat treatable steel of claim 30 , wherein Mn+Ni+Cu≧1 weight %.35. The non-scaling heat treatable steel of claim 34 , wherein Mn+Ni+Cu≧2 weight %.36. The non-scaling heat treatable steel of claim 35 , wherein Mn+Ni+Cu≧3 weight %.37. A method for producing a non-scaling claim 30 , hardened component from the steel of claim 30 , comprising:{'sub': 2', '2, 'heating a pre-product in a nitrogen containing atmosphere to austenizing temperature, said nitrogen containing atmosphere optionally containing H, CO and CO; and'}quenching the pre-product.38. The method of claim 37 , further comprising forming the pre-product into a component.39. The method of claim 37 , wherein the atmosphere has a dew point of below 0° C.40. The method of claim 37 , wherein ...

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME

A non-oriented electrical steel sheet having high magnetic flux density and a low iron loss at a high frequency is produced by subjecting a slab containing, in mass %, C: not more than 0.0050%, Si: 2.8 to 6.5%, Mn: 0.05 to 2.0%, P: not more than 0.10%, S: not more than 0.0050%, Al: 0.3 to 2.0%, N: not more than 0.0050% and Zn: 0.0005 to 0.0050% to a hot rolling, a hot-band annealing, a cold rolling and a finish annealing, a dew point in the hot-band annealing is set to 0 to 70 ° C. and an atmosphere of the finish annealing has a nitrogen content of not more than 30 vol % and a dew point of not higher than −20° C., and a ratio of the amount of nitrogen present as AlN in an entire sheet thickness to the amount of nitrogen present as AlN in a layer from one-side surface of steel sheet to a depth of 1/20 of sheet thickness is made to not less than 5.0. 1. A non-oriented electrical steel sheet having a chemical composition comprising C: not more than 0.0050 mass % , Si: 2.8 to 6.5 mass % , Mn: 0.05 to 2.0 mass % , P: not more than 0.10 mass % , S: not more than 0.0050 mass % , Al: 0.3 to 2.0 mass % , N: not more than 0.0050 mass % , Zn: 0.0005 to 0.0050 mass % , Ti: not more than 0.0030 mass % , Nb: not more than 0.0030 mass % , O: not more than 0.0050 mass % and the remainder being Fe and inevitable impurities , characterized in that t , Nand Nsatisfy the following equation (1):{'br': None, 'i': t×N', 't/', 'N, 'sub': 2', '1, '()/{(10)×}≥5.0 \u2003\u2003(1),'}{'sub': 1', '2, 'where t (mm) represents a steel sheet thickness, N(mass %) represents a concentration of nitrogen present as AlN in a layer from a one-side surface of the steel sheet to a depth of 1/20 of the sheet thickness, and N(mass %) represents a nitrogen concentration present as AlN in an entire sheet thickness.'}2. The non-oriented electrical steel sheet according to claim 1 , which contains one or two selected from Sn: 0.005 to 0.20 mass % and Sb: 0.005 to 0.20 mass % claim 1 , in addition to the above ...

ASSEMBLY COMPONENT

The present invention relates to an assembly component of an alloy based on iron, nickel and/or cobalt containing at least 10% (w/w) chromium, the assembly component having an annular shape with an inner surface and an outer surface and a thickness between the inner surface and the outer surface in the range of 0.1 mm to 5 mm, the alloy having a content of nitrogen in solid solution providing a microhardness in the range of 250 HVto 370 HVat a depth from the surface in the range of 0 μm to 100 μm. The invention also relates to an assembly with the assembly component. 1. An assembly component of an alloy based on iron , nickel and/or cobalt containing at least 10% (w/w) chromium , the assembly component having an annular shape with an inner surface and an outer surface and a thickness between the inner surface and the outer surface in the range of 0.1 mm to 5 mm , the alloy having a content of nitrogen in solid solution providing a microhardness in the range of 250 HVto 370 HVat a depth from the surface in the range of 0 μm to 100 μm.2. The assembly component according to claim 1 , wherein the microhardness is in the range of 280 HVto 320 HVat a depth from the surface in the range of 0 μm to 100 μm.3. The assembly component according to claim 1 , wherein the assembly component has an average microhardness in the range of 280 HVto 320 HVover the thickness of the assembly component as calculated from at least 5 microhardness measurements claim 1 , which at least 5 microhardness measurements deviate with up to 15% from the average hardness.4. The assembly component according to claim 1 , wherein the nitrogen content is in the range of 0.1% (w/w) to 0.8% (w/w) at a depth from the surface in the range of 0 μm to 100 μm.5. The assembly component according to claim 3 , wherein the nitrogen content is in the range of 0.1% (w/w) to 0.8% (w/w) over the thickness of the assembly component.6. The assembly component according to claim 5 , wherein the nitrogen content deviates ...

COBALT-FREE, GALLING AND WEAR RESISTANT AUSTENITIC STAINLESS STEEL HARD-FACING ALLOY

A strain-hardenable stainless steel alloy includes hard secondary phases dispersed in an austenitic primary phase, the alloy including 0.3-0.6% nitrogen by weight. 1. A strain-hardenable stainless steel alloy comprising hard secondary phases dispersed in an austenitic primary phase , the alloy including 0.3-0.6% nitrogen by weight.2. The alloy of claim 1 , wherein the nitrogen content of the alloy is 0.44-0.55% by weight.3. The alloy of claim 1 , wherein the alloy consists essentially of claim 1 , by weight: 21.0 to 27.0% chromium; 3.0 to 7.0% manganese; 2.0 to 6.0% nickel; 1.5 to 4.0% silicon; 1.0 to 5.0% molybdenum; 0.9 to 1.3% carbon; 0.3-0.6% nitrogen; the balance iron and impurities.4. The alloy of claim 3 , wherein the alloy consists essentially of claim 3 , by weight: 21.0 to 27.0% chromium; 3.0 to 7.0% manganese; 2.0 to 6.0% nickel; 1.5 to 4.0% silicon; 1.0 to 5.0% molybdenum; 0.9 to 1.3% carbon; 0.44-0.55% nitrogen; the balance iron and impurities.5. The alloy of claim 4 , wherein the alloy consists essentially of claim 4 , by weight: 25.73% chromium; 4.78% manganese; 4.37% nickel; 3.34% silicon; 2.04% molybdenum; 1.21% carbon; 0.46% nitrogen; the balance iron and impurities.6. The alloy of claim 1 , wherein the hard phases comprise at least one of a carbide and a nitride.7. A hard-faced component claim 1 , comprising:a metallic component having a component surface;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a layer of the hard-facing alloy according to applied to the component surface.'}8. The component according to claim 7 , wherein the component is a valve seat. The present invention relates generally to a hard-facing alloy, and more particularly, the invention relates to a cobalt-free hard-facing alloy.Hard-facing alloys are used for a variety of applications including: valve seats, valve stems, turbine blades, lawn-mower blades, mixers, rollers, grinders, cutters, etc. These alloys offer a variety of properties including: high galling resistance ...

PROCESS FOR THE TREATMENT OF AN OPTIMISED STEEL MATERIAL

Process for the treatment of a steel material, wherein the grains of which it is composed comprise a matrix into which precipitates are incorporated, the precipitates comprising at least one metallic element selected from a metallic element M, a metallic element M′, a metallic element M″ or mixtures thereof; the microstructure of the steel being such that the grains are equiaxial and the average size of the grains being such that the average of their largest dimension “Dmax” and/or the average of their smallest dimension “Dmin” is in the range 10 μm to 50 μm. 1. A process for treating a steel material , comprising:hot isostatic pressing the steel material,wherein the steel material comprises grains comprising a matrix into which precipitates are incorporated 16% to 20% of chromium,', '8% to 14% of nickel,', '0.001% to 0.030% of carbon,', '0.001% to 0.050% of oxygen,', '0% to 2% of manganese,', '0% to 3% of molybdenum,', '0% to 1% of silicon, and', 'iron; and, 'i) the steel material comprises, as a percentage by weight 'wherein the steel material has a microstructure of equiaxed grains having an average grain size average size of from 10 μm to 50 μm at a largest dimension Dmax and/or a smallest dimension Dmin.', 'ii) the precipitates comprise at least one metallic element selected from the group consisting of a metallic element M, a metallic element M′, and a metallic element M″ wherein each of the metallic elements M, M′ and M″ is, if present, at least one selected independently from the group consisting of yttrium, titanium, iron, chromium, tungsten, silicon, zirconium, thorium, magnesium, manganese, aluminium, hafnium, and molybdenum; and'}2. The process according to claim 1 , wherein the hot isostatic pressing comprises the following steps in succession claim 1 , carried out in a chamber comprising an inert gaseous atmosphere under a pressure in a range of from 120 bar to 1800 bar:a) heating the steel material to a constant temperature in a range of from 600° C. ...

METHOD FOR REPAIRING DEFECTS ON HOT PARTS OF TURBOMACHINES THROUGH HYBRID HOT ISOSTATIC PRESSING (HIP) PROCESS

In a hot isostatic pressing (HIP) method, the component to be treated, affected by imperfections, like porosity, cracks and cavities in its structure, is placed into a container together with non-metallic material in form of powder or grains having size greater than the porosity and the cracks and imperfections of the component. During the HIP process, the non-metallic material presses on the whole surface of the embedded component in order to generate a combination of temperature and forces capable to reduce defects, embedded and not embedded, in the component itself. The component is not contaminated during the process thus allowing easily removal of the non-metallic material by a simple operation of mechanical cleaning or chemical washing. 1. A hot isostatic pressing method , the method comprising:placing a component affected by structural imperfections in a leak-free container;introducing a medium into the container to embed completely the component;outgassing the container to remove gases and water vapor from within the container;sealing the apertures of the container used to fill the container with the medium and to outgas the container;placing the container inside a pressurized heating vessel of a hot isostatic pressing apparatus;pressing and heating the container with predetermined pressure and temperature, for a predetermined holding time interval;extracting the component from the container andapplying a second cleaning to the component, whereinthe medium comprises non-metallic material in form of powder or grains the dimensions of which are larger than the minimum dimension of the larger structural imperfection of the component under treatment.2. The method according to claim 1 , wherein the predetermined pressure is applied through pressurized inert gas and ranges between 500 Bar (7250 Psi) and 3000 Bar (43500 Psi).3. The method according to claim 1 , wherein the predetermined temperature ranges between 480° C. (896° F.) and 1300° C. (2400° F.).4. The ...

A method for manufacturing a metal based component comprising a protrusion

The inventive concept relates to method for manufacturing a metal based component comprising at least one protrusion. The method comprises: providing a metal based substrate comprising a surface having at least one cavity; providing a metal based protrusion element comprising a first portion and a second portion, wherein said first portion has a shape that conforms to a shape of the cavity; arranging the first portion of the protrusion element in said cavity such that at least the second portion of the protrusion element protrudes at least 5 mm from a surface of the metal based substrate, to form a substrate comprising a protrusion; placing said substrate comprising a protrusion in a canister such that a void is formed between the canister and the surface of the substrate comprising the protrusion; filling at least a portion of the void with a diamond powder such that the surface of the substrate comprising the protrusion is covered by the inert filler material; removing gas from the interface between said diamond powder and said substrate comprising

METHOD FOR PRODUCING A COMPONENT, COMPONENT AND PRESS FOR PRODUCING A COMPONENT

A method to produce a component from a workpiece via a press which includes at least one die to form the workpiece. The workpiece comprises at least one of a metal, a metal alloy and a coating and has a form of a hollow part. The method includes internal high-pressure forming and/or hydraulic back-pressure forming the workpiece via a fluid and the at least one die at a temperature below a first hardening temperature of the workpiece, and subsequently partially or completely hardening the workpiece by heating the workpiece above the first hardening temperature and then immediately cooling the workpiece. The heating and the cooling are each essentially conducted without a forming so that a fabricated component results. 111-. (canceled)12. A method to produce a component from a workpiece via a press which comprises at least one die to form the workpiece , wherein the workpiece comprises at least one of a metal , a metal alloy and a coating and has a form of a hollow part , the method comprising:internal high-pressure forming and/or hydraulic back-pressure forming the workpiece via a fluid and the at least one die, the internal high-pressure forming and/or the hydraulic back-pressure forming being conducted at a temperature below a first hardening temperature of the workpiece; andsubsequently partially or completely hardening the workpiece by heating the workpiece above the first hardening temperature and then immediately cooling the workpiece, the heating and the cooling each being essentially conducted without a forming so that a fabricated component results.13. The method as recited in claim 12 , wherein claim 12 ,the first hardening temperature is below a melting point of zinc phases; andthe heating of the workpiece above the first hardening temperature is to a temperature of above 700° C.14. The method as recited in claim 13 , wherein the temperature is above 840° C.15. The method as recited in claim 12 , wherein the fluid comprises at least one of water claim 12 , ...

MARTENSITE-BASED STAINLESS STEEL COMPONENT AND METHOD FOR MANUFACTURING THE SAME

Provided is a martensite-based stainless steel component that has a nitride layer on a surface of a martensite-based stainless steel with a constituent composition including, in percent by mass, 0.25 to 0.45% of C, 1.0% or less of Si, 0.1 to 1.5% of Mn, 12.0 to 15.0% of Cr, and 0.5 to 3.0% of Mo, with a remainder being Fe and impurities, wherein hardness at a position of a depth of 0.1 mm from a surface of the martensite-based stainless steel component is 650 HV or more, and a number density of carbide with an equivalent circle diameter of 1 μm or more is 100 particles/10000 μmin a sectional structure at the position of the depth of 0.1 mm from the surface of the martensite-based stainless steel component. Also, a method for manufacturing the martensite-based stainless steel component is provided. 1. A martensite-based stainless steel component that has a nitride layer on a surface of martensite-based stainless steel with a constituent composition of , in percent by mass , 0.25 to 0.45% of C , 1.0% or less of Si , 0.1 to 1.5% of Mn , 12.0 to 15.0% of Cr , and 0.5 to 3.0% of Mo , with the remainder being Fe and impurities ,wherein a hardness at a position of a depth of 0.1 mm from a surface of the martensite-based stainless steel component is 650 HV or more, and{'sup': '2', 'a number density of carbide particles with an equivalent circle diameter of 1 μm or more is 100 particles/10,000 μmor less in a sectional structure at a position of a depth of 0.1 mm from the surface of the martensite-based stainless steel component.'}2. The martensite-based stainless steel component according to claim 1 , wherein a thickness of a compound layer that the nitride layer has is 1 μm or less.3. The martensite-based stainless steel component according to claim 1 , wherein the constituent composition of the martensite-based stainless steel further includes claim 1 , in percent by mass claim 1 , 0.3% or less of Nb.4. The martensite-based stainless steel component according to claim 1 , ...

METHOD OF PRODUCING MARTENSITIC STAINLESS STEEL STRIP

In the method of producing a martensitic stainless steel strip, a quenching furnace of a quenching process includes at least a temperature raising unit and a holding unit. When a predetermined quenching temperature is set as T (° C.), the temperature raising unit is set to be within a temperature range of 0.7T (° C.) or higher and lower than T (° C.), and a set heating temperature on an exit side of the steel strip is set to be higher than a set heating temperature on an entry side of the steel strip when the steel strip passes through the temperature raising unit. The holding unit is set to the quenching temperature T (° C.). A time spent in the furnace by the steel strip in the temperature raising unit is equal to or longer than a time spent in the furnace by the steel strip in the holding unit. 1. A method of producing a martensitic stainless steel strip by performing the following processes continuously:an unwinding process in which a martensitic stainless steel strip with a thickness 1 mm or less is unwound;a quenching process in which the steel strip is passed through a quenching furnace in a non-oxidizing gas atmosphere and heated and then cooled;a tempering process in which the quenched steel strip is passed through a tempering furnace in a non-oxidizing gas atmosphere and tempered; anda winding process in which the tempered steel strip is wound,wherein the quenching furnace of the quenching process comprises at least a temperature raising unit and a holding unit,wherein, when a predetermined quenching temperature is set as T (° C.), the temperature raising unit is set to be within a temperature range of 0.7 T (° C.) or higher and lower than T (° C.), and a set heating temperature on an exit side of the steel strip is set to be higher than a set heating temperature on an entry side of the steel strip when the steel strip passes through the temperature raising unit,wherein the holding unit is set to the quenching temperature T (° C.), andwherein a time spent ...

Corrosion resistant article and methods of making

An article and method of forming the article are disclosed. The article has a surface comprising a duplex nanostructured ferritic alloy. The surface includes a plurality of nanofeatures that include complex oxides of yttrium and titanium disposed in an iron-bearing alloy matrix. The iron-bearing alloy matrix includes both a ferrite phase and an austenite phase. Further, a concentration of a chi phase or a sigma phase in the duplex nanostructured ferritic alloy at the surface is less than about 5 volume percent. The method generally includes the steps of milling, thermo-mechanically consolidating, annealing, and then cooling at a rate that hinders the formation of chi and sigma phases in the duplex nanostructured ferritic alloy at the surface.

High-pressure-torsion apparatuses and methods of modifying material properties of workpieces using such apparatuses

A high-pressure-torsion apparatus ( 100 ), comprising a working axis ( 102 ), a first anvil ( 110 ), a second anvil ( 120 ), and an annular body ( 130 ). The annular body ( 130 ) comprises a first total-loss convective chiller ( 140 ), a second total-loss convective chiller ( 150 ), and a heater ( 160 ). Each of the first total-loss convective chiller ( 140 ) and the second total-loss convective chiller ( 150 ) is translatable between the first anvil ( 110 ) and the second anvil ( 120 ) along the working axis ( 102 ), is configured to be thermally convectively coupled with a workpiece ( 190 ), and is configured to selectively cool the workpiece ( 190 ). The heater ( 160 ) is positioned between the first total-loss convective chiller ( 140 ) and the second total-loss convective chiller ( 150 ) along the working axis ( 102 ), is translatable between the first anvil ( 110 ) and the second anvil ( 120 ) along the working axis ( 102 ), and is configured to selectively heat the workpiece ( 190 ).

SEPARATOR PRODUCTION METHOD

A method of manufacturing a separator includes subjecting a metal thin sheet material to be transported to stepwise forming working at an identical location by a plurality of press machines having different working shapes and arranged sequentially from an upstream side to a downstream side in a transport direction of the metal thin sheet material to form a flow passage groove. The thin sheet material is subjected to annealing treatment in at least one space of spaces between the press machines arranged adjacent to each other in the transport direction of the thin sheet material. 1. A method of manufacturing a separator comprising:subjecting a metal thin sheet material to be transported to stepwise forming working at an identical location by a plurality of press machines having different working shapes and arranged sequentially from an upstream side to a downstream side in a transport direction of the metal thin sheet material to form a flow passage groove,wherein the thin sheet material is subjected to annealing treatment in at least one space of spaces between the press machines arranged adjacent to each other in the transport direction of the thin sheet material.2. The method of manufacturing the separator according to claim 1 , wherein the annealing treatment is performed at least between the press machine arranged on the most upstream side and the press machine arranged on a downstream side adjacent to the press machine arranged on the most upstream side.3. The method of manufacturing the separator according to claim 1 , wherein the annealing treatment is performed under an oxygen-free or non-oxidizing gas atmosphere.4. The method of manufacturing the separator according to claim 1 , wherein cooling treatment is performed on the thin sheet material after the annealing treatment. The present invention relates to a method of manufacturing a separator used for a fuel cell.In a metal separator used for a fuel cell, a flow passage groove for making gas flow is formed ...

NON-SCALING HEAT-TREATABLE STEEL AND METHOD FOR PRODUCING A NON-SCALING COMPONENT FROM SAID STEEL

A non-scaling heat-treatable steel with particular suitability for producing hardened or die-hardened components is disclosed, characterized by the following chemical composition in % by weight: C 0.04-0.50; Mn 0.5-6.0; Al 0.5-3.0; Si 0.05-3.0; Cr 0.05-3.0; Ni less than 3.0; Cu less than 3.0; Ti 0.0104-≤0.050; B 0.0015-≤40.0040; P less than 0.10; S less than 0.05; N less than 0.020; remainder iron and unavoidable impurities. Further disclosed is a method for producing a non-scaling hardened component from the steel and a method for producing a hot strip from a steel. 1. A non-scaling heat treatable steel , comprising a following chemical composition in weight %:C: 0.04-0.50Mn: 0.5-6.0Al: 0.5 to 3.0Si: 0.05-3.0Cr: 0.05-3.0Ni: less than 3.0Cu: less than 3.0Ti: 0.010-≤0.050B: 0.0015-≤0.0040P: less than 0.10S: less than 0.05N: less than 0.020remainder iron and unavoidable impurities,wherein a total content of aluminum, silicone and chromium is at least 1.0 weight % to inhibit scaling.2. The non-scaling heat treatable steel of claim 1 , wherein Al+Si+Cr≥2 weight %.3. The non-scaling heat treatable steel of claim 1 , wherein Al+Si+Cr≥3 weight %.4. The non-scaling heat treatable steel of claim 1 , wherein Mn+Ni+Cu≥1 weight %.5. The non-scaling heat treatable steel of claim 1 , wherein Mn+Ni+Cu≥2 weight %.6. The non-scaling heat treatable steel of claim 1 , wherein Mn+Ni+Cu≥3 weight %. This application is a divisional of prior filed copending U.S. application Ser. No. 14/387,158, filed Sep. 22, 2014, the priority of which is hereby claimed under 35 U.S.C. § 120 and which is the U.S. National Stage of International Application No. PCT/DE2013/000165, filed Mar. 19, 2013, which designated the United States and has been published as International Publication No. WO 2013/139327 and which claims the priority of German Patent Application, Serial No. 10 2012 006 470.5, filed Mar. 23, 2012, and German Patent Application, Serial No. 10 2013 004 905.9, filed Mar. 15, 2013 pursuant to ...

RESISTANCE ANNEALING FURNACE TO ANNEAL AT LEAST ONE METAL OR METAL ALLOY WIRE, STRAND, STRING, WIRE ROD OR STRIP

Resistance annealing furnace to anneal at least one metal or metal alloy wire, strand, string, wire rod or strip, the annealing furnace having at least two electric axles provided with respective electric contact rings for conveying the metal or metal alloy wire, strand, string, wire rod or strip, and a DC voltage generator, which can be supplied by an AC voltage (Uac) to generate an annealing voltage (Uann) applied between the two electric axles so as to produce an electric current in the portion of the metal or metal alloy wire, strand, string, wire rod or strip extending between the two electric axles, which provokes an annealing due to the Joule effect. At least one of the electric contact rings is made of a non-metal electric conductor material, for example graphite. 1. A resistance annealing furnace to anneal at least one metal or metal alloy wire , strand , string , wire rod or strip , the annealing furnace comprising:at least two electric axles provided with respective electric contact rings for conveying the at least one metal or metal alloy wire, strand, string, wire rod or strip; andDC voltage generating means, which can be supplied by an AC voltage to generate an annealing voltage applied between the at least two electric axles so as to produce an electric current in a portion of the at least one metal or metal alloy wire, strand, string, wire rod or strip extending between the at least two electric axles, which provokes an annealing due to the Joule effect,wherein at least one of the electric contact rings is made of a non-metal electric conductor material.2. The annealing furnace according to claim 1 , wherein the non-metal electric conductor material consists of graphite.3. The annealing furnace according to claim 2 , wherein the graphite is isotropic graphite.4. The annealing furnace according to claim 2 , wherein the graphite has a resistivity with a value ranging from 1000 to 1300 μΩ·cm.5. The annealing furnace according to claim 2 , wherein the ...

ULTRA HIGH-STRENGTH AIR-HARDENING MULTIPHASE STEEL HAVING EXCELLENT PROCESSING PROPERTIES, AND METHOD FOR MANUFACTURING A STRIP OF SAID STEEL

An ultra-high-strength air-hardenable multiphase steel having minimal tensile strengths in a non air hardened state of 950 MPa and excellent processing properties, includes the following elements in % by weight: C≥0.075 to ≤0.115; Si≥0.400 to ≤0.500; Mn≥1,900 to ≤2,350; Cr≥0.200 to ≤0.500; Al≥0.005 to ≤0.060; N≥0.0020 to ≤0.0120; S≤0.0030; Nb≥0.005 to ≤0.060; Ti≥0.005 to ≤0.060; B≥0.0005 to ≤0.0030; Mo≥0.200 to ≤0.300; Ca≥0.0005 to ≤0.0060; Cu≤0.050; Ni≤0.050; remainder iron, including usual steel accompanying smelting related impurities, wherein for a widest possible process window during continuous annealing of hot rolled or cold rolled strips made from said steel a sum content of M+Si +Cr in said steel is a function of a thickness of the steel strips according to the following relationship: for strip thicknesses of up to 1.00 mm the sum content of M+Si+Cr is ≥2.800 and ≤3.000%, for strip thicknesses of over 1.00 to 2.00 mm the sum of Mn+Si+Cr is ≥2.850 and ≤3.100%, and for strip thicknesses of over 2.00 mm the sum of Mn+Si+Cr is ≥2.900 and ≤3.200%. 137-. (canceled)38. An ultra-high-strength air-hardenable multiphase steel having minimal tensile strengths in a non air hardened state of 950 MPa and excellent processing properties , said steel comprising the following elements in % by weight:C≥0.075 to ≤0.115Si≥0.400 to ≤0.500Mn≥1,900 to ≤2,350Cr≥0.200 to ≤0.500Al≥0.005 to ≤0.060N≥0.0020 to ≤0.0120S≤0.0030Nb≥0.005 to ≤0.060Ti≥0.005 to ≤0.060B≥0.0005 to ≤0.0030Mo≥0.200 to ≤0.300Ca≥0.0005 to ≤0.0060Cu≤0.050Ni≤0.050remainder iron, including usual steel accompanying smelting related impurities, wherein for a widest possible process window during continuous annealing of hot rolled or cold rolled strips made from said steel a sum content of M+Si+Cr in said steel is a function of a thickness of the steel strips according to the following relationship:for strip thicknesses of up to 1.00 mm the sum content of M+Si+Cr is ≥2.800 and ≤3.000%,for strip thicknesses of over 1.00 ...

NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME

A non-grain oriented electrical steel sheet according to an exemplary embodiment of the present invention includes Si: 1.0 to 4.0%, Mn: 0.1 to 1.0%, Al: 0.1 to 1.5%, Zn: 0.001 to 0.01% B: 0.0005 to 0.005%, and a balance including Fe and inevitable impurities. 1. A non-grain oriented electrical steel sheet comprising Si: 1.0 to 4.0% , Mn: 0.1 to 1.0% , Al: 0.1 to 1.5% , Zn: 0.001 to 0.01% , B: 0.0005 to 0.005% by wt % , and a balance including Fe and inevitable impurities.2. The non-grain oriented electrical steel sheet of claim 1 , further comprisingP: 0.001 to 0.1 wt %, C: 0.005 wt % or less, S: 0.001 to 0.005 wt %, N: 0.005 wt % or less, and Ti: 0.005 wt % or less.3. The non-grain oriented electrical steel sheet of claim 1 , further comprisingone or more of Sn and Sb alone or as a sum amount of 0.06 wt % or less.4. The non-grain oriented electrical steel sheet of claim 1 , further comprisingone or more of Cu: 0.05 wt % or less, Ni: 0.05 wt % or less, Cr: 0.05 wt % or less, Zr: 0.01 wt % or less, Mo: 0.01 wt % or less, and V: 0.01 wt % or less.5. The non-grain oriented electrical steel sheet of claim 1 , wherein{'sup': '2', 'for a steel sheet surface, a density of a Si oxide with a particle diameter of 50 to 200 nm is 5 units/μmor less.'}6. The non-grain oriented electrical steel sheet of claim 1 , wherein{'sub': 15/50', '50, 'an iron loss (W) is 2.80 W/kg or less, and a magnetic flux density Bis 1.70 T or more.'}7. A manufacturing method of a non-grain oriented electrical steel sheet comprising:a step of heating a slab including Si: 1.0 to 4.0%, Mn: 0.1 to 1.0%, Al: 0.1 to 1.5%, Zn: 0.001 to 0.01%, B: 0.0005 to 0.005%. and a balance including Fe and inevitable impurities by wt %;a step of hot-rolling the slab to manufacturing a heat rolled sheet;a step of cold rolling the heat rolled sheet to manufacturing a cold rolled sheet; anda step of final annealing the cold rolled sheet.8. The manufacturing method of the non-grain oriented electrical steel sheet of claim 7 ...

METHOD OF WELDING SUPERALLOYS

A method of welding a superalloy component includes the following sequential steps. A welding step for welding a cavity using a filler metal in an inert atmosphere, where the cavity is located in the component. A covering step for covering the filler metal and a portion of the component with a weld filler layer in the inert atmosphere. The weld filler layer has a greater ductility than material comprising the component and/or material comprising the filler metal. A second covering step for covering the weld filler layer with a braze material, and subsequently performing a brazing operation. A heat treating step heat treats the component. 1. A method of welding a superalloy component , the method comprising the following sequential steps:(a) welding a cavity using a filler metal in an inert atmosphere, the cavity located in the component;(b) covering the filler metal and a portion of the component with a weld filler layer in the inert atmosphere, the weld filler layer having a greater ductility than material comprising the component and material comprising the filler metal;(c) covering the weld filler layer with a braze material, and performing a brazing operation;(d) heat treating the component.2. The method of claim 1 , the superalloy component comprised of a high gamma prime superalloy.3. The method of claim 2 , the high gamma prime superalloy comprising at least one of:B-1900, GTD-111, Inconel 100, Inconel 713, Inconel 738, Inconel 792, Inconel 939, MAR-M-246, MAR-M-509, Rene 77, Rene 108, Rene 125, or U-500, CM 247, Mar M 247.4. The method of claim 1 , the filler metal comprising one of:GTD-262, GTD-111, R-108LC, R-108, MarM 247, IN 738, GTD-222.5. The method of the inert atmosphere comprising:argon gas, nitrogen gas, helium gas or carbon dioxide gas.6. The method of claim 1 , the weld filler layer comprising at least one of:nickel, H-230, Inconel 600, Inconel 617, Inconel 625, or Yanalloy.7. The method of claim 1 , the braze material comprising at least one of: ...

BODY COMPONENT OR CHASSIS COMPONENT OF A MOTOR VEHICLE HAVING IMPROVED CRASH PERFORMANCE, AND METHOD FOR PRODUCING SAME

The disclosure is related to a body component or chassis component for a motor vehicle having at least one surface segment composed of a three-layer sheet-metal composite having a central layer and two outer layers, which bound the central layer on the outside and which are integrally joined to the central layer face to face. The outer layers are composed of a stainless steel alloy having a microstructure selected from the group of ferritic, austenitic, or martensitic microstructure and the central layer is composed of a heat-treatable steel alloy, and the body component or chassis component has a bending angle of greater than 80°, determined in the plate bending test according to VDA 238-100, having an Rp0.2 yield strength of greater than 900 MPa. 1. A body component or chassis component for a motor vehicle , comprising at least one surface section consisting of a triple-layer laminated metal sheet having a center layer and two external layers which bound the center layer on the outside and are connected over an extensive area and materially to the center layer , wherein the external layers are composed of a rust-resistant steel alloy with a microstructure selected from the group consisting of ferritic , austentic or martensitic microstructures and the center layer is composed of a heat-treatable steel alloy , and the body component or chassis component has a bending angle greater than 80° , determined in the plate bending test according to VDA 238-100:2010 , with an Rp0.2 proof stress greater than 900 MPa.2. (canceled)3. The body component or chassis component as claimed in claim 1 , wherein the bending angle is greater than 95° claim 1 , and the Rp0.2 proof stress is greater than 950 MPa.4. The body component or chassis component as claimed in claim 1 , wherein the bending angle is greater than 90° claim 1 , in particular greater than 100° claim 1 , preferably greater than 110°.5. The body component or chassis component as claimed in claim 1 , wherein the product ...

Cobalt-free, galling and abrasion resistant austenitic surface hardened stainless steel alloy

Device for alleviating residual stress of pipe

본 발명은 특히 배관 외주면을 압박시킴으로써 잔류응력을 제거시키는 배관 잔류응력 완화장치에 관한 것으로서, 중심이 원형으로 절개되는 고정원반과, 상기 고정원반과 대향되게 배치되며 중심이 원형으로 절개되는 회전원반과, 상기 고정원반과 힌지결합되며, 고정원반과 회전원반 사이에 복수개가 원형으로 배치되는 가압편과, 상기 회전원반을 회동시키는 회전수단;을 포함하되, 상기 회전원반에는 가압편을 회전원반의 중심으로 안내하는 안내공이 형성되어 회전원반의 회전되면서 가압편이 상기 안내공을 따라 가변되는 것을 특징으로 함으로써, 배관 외주면 전체에 걸쳐 동시에 고른 압력이 가해지므로 배관 외주면 전체 잔류 응력이 균일하게 제거되면서 외주면 형상이 고르게 교정될 수 있고, 장비를 배관 외주면에 장착시키는 데 따르는 체결과정이 전혀 필요없게 되어 작업시간이 현저하게 단축되며, 구조가 단순하고 부피를 거의 차지하지 않으므로 협소한 장소에서도 얼마든지 작업이 가능하며, 소수의 작업자로도 잔류응력 제거 작업이 가능하면서, 현저하게 저렴한 비용으로 제작 가능한 배관 잔류응력 완화장치를 제공하고자 한다. In particular, the present invention relates to a pipe residual stress relieving device for removing residual stress by pressurizing the outer circumferential surface of a pipe, and more particularly, to a pipe residual stress relieving device for removing residual stress by pressurizing an outer circumferential surface of a pipe, comprising a fixed disk having a center cut in a circular shape, a rotating disk facing the fixed disk, A pressing piece hingedly coupled to the fixed disk and having a plurality of pressing pieces arranged in a circular shape between the fixed disk and the rotating disk and rotating means for rotating the rotating disk, The uniform pressure is simultaneously applied to the entire outer circumferential surface of the pipe, so that the residual stress on the entire circumferential surface of the pipe is uniformly removed, and the outer circumferential surface shape And can be calibrated evenly, and a device for mounting the equipment on the outer circumferential surface of the pipe Since the result is not needed at all, the working time is remarkably shortened, the structure is simple, and it occupies almost no volume. Therefore, it is possible to work any time in a narrow space, and a small number of workers can perform residual stress removing work, And to provide a piping residual stress relieving device which can be manufactured at low cost.

assembly parts

본 발명은 10 %(w/w) 이상의 크롬을 함유하는 철, 니켈 및/또는 코발트에 기초한 합금의 조립 부품에 관한 것이고, 상기 조립 부품은 내부 표면 및 외부 표면을 갖는 환형 형상을 가지며 0.1mm 내지 5mm 범위의 내부 표면과 외부 표면 사이의 두께를 가지며, 상기 합금은 표면으로부터 0 μm 내지 100 μm 범위의 깊이에서 250 HV 0.05 내지 370 HV 0.05 범위의 마이크로 경도를 제공하는 고용체 내의 질소 함량을 갖는다. 본 발명은 또한 조립 부품을 구비한 조립품에 관한 것이다.

Hot-rolled steel sheet for non-oriented electrical steel sheet

Superhigh-strength, air-hardening, multiphase steel, having excellent process characteristics, and method of producing said steel

FIELD: metallurgy. SUBSTANCE: invention relates to high-strength, air-hardening, multiphase steel used for production of cold-rolled or hot-rolled strips. Steel has the following composition, wt %: C from 0.075 to 0.145, Si from 0.400 to 0.500, Mn from 1.900 to 2.350, Cr from 0.200 to 0.500, Al from 0.005 to 0.060, N from 0.0020 to 0.0120, S 0.0030 or less, Nb from 0.005 up to 0.060, Ti from 0.005 to 0.060, B from 0.0005 to 0.0030, Mo from 0.200 to 0.300, Ca from 0.0005 to 0.0060, Cu 0.050 or less, Ni 0.050 or less, the rest—iron and unavoidable impurities. EFFECT: steel has tensile strength in non-tempered state equal to 950 MPa, required moldability and weldability. 37 cl, 6 dwg, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 721 767 C2 (51) МПК C22C 38/38 (2006.01) C21D 8/02 (2006.01) C21D 9/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22C 38/38 (2020.02); C21D 8/02 (2020.02); C21D 9/46 (2020.02) (21)(22) Заявка: 2017120860, 06.11.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ЗАЛЬЦГИТТЕР ФЛАХШТАЛЬ ГМБХ (DE) 22.05.2020 18.11.2014 DE 10 2014 017 274.0 (43) Дата публикации заявки: 19.12.2018 Бюл. № 35 (56) Список документов, цитированных в отчете о поиске: EP 2426230 A1, 07.03.2012. RU 2321668 C2, 10.04.2008. RU 2507297 C1, 20.02.2014. WO 2012100762 A1, 02.08.2012. (45) Опубликовано: 22.05.2020 Бюл. № 15 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.06.2017 2 7 2 1 7 6 7 Приоритет(ы): (30) Конвенционный приоритет: R U 06.11.2015 (72) Автор(ы): ШУЛЬЦ, Томас (DE), ШЁТЛЕР, Йоахим (DE), КЛЮГЕ, Саша (DE) DE 2015/100474 (06.11.2015) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 7 2 1 7 6 7 WO 2016/078644 (26.05.2016) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) СВЕРХВЫСОКОПРОЧНАЯ, ЗАКАЛИВАЮЩАЯСЯ НА ВОЗДУХЕ, МНОГОФАЗНАЯ СТАЛЬ, ОБЛАДАЮЩАЯ ОТЛИЧНЫМИ ТЕХНОЛОГИЧЕСКИМИ ХАРАКТЕРИСТИКАМИ, И СПОСОБ ...

SUPERHIGH-STRENGTH Hardening airborne, MULTI-PHASE STEEL WITH EXCELLENT TECHNOLOGICAL CHARACTERISTICS, AND METHOD FOR PRODUCING INDICATED STEEL

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 120 860 A (51) МПК C22C 38/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017120860, 06.11.2015 (71) Заявитель(и): ЗАЛЬЦГИТТЕР ФЛАХШТАЛЬ ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 18.11.2014 DE 10 2014 017 274.0 35 R U (43) Дата публикации заявки: 19.12.2018 Бюл. № (72) Автор(ы): ШУЛЬЦ Томас (DE), ШЁТЛЕР Йоахим (DE), КЛЮГЕ Саша (DE) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.06.2017 DE 2015/100474 (06.11.2015) (87) Публикация заявки PCT: WO 2016/078644 (26.05.2016) R U (54) СВЕРХВЫСОКОПРОЧНАЯ ЗАКАЛИВАЮЩАЯСЯ НА ВОЗДУХЕ, МНОГОФАЗНАЯ СТАЛЬ, ОБЛАДАЮЩАЯ ОТЛИЧНЫМИ ТЕХНОЛОГИЧЕСКИМИ ХАРАКТЕРИСТИКАМИ, И СПОСОБ ПОЛУЧЕНИЯ УКАЗАННОЙ СТАЛИ (57) Формула изобретения 1. Сверхвысокопрочная, закаливаемая на воздухе, многофазная сталь с минимальным пределом прочности на разрыв в незакаленном на воздухе состоянии, равном 950 МПа, с отличными технологическими характеристиками, включающая элементы (содержание в % по массе): C от ≥ 0,075 до ≤ 0,115 Si от ≥ 0,400 до ≤ 0,500 Mn от ≥ 1,900 до ≤ 2,350 Cr от ≥ 0,200 до ≤ 0,500 Al от ≥ 0,005 до ≤ 0,060 N от ≥ 0,0020 до ≤ 0,0120 S ≤ 0,0030 Nb от ≥ 0,005 до ≤ 0,060 Ti от ≥ 0,005 до ≤ 0,060 B от ≥ 0,0005 до ≤ 0,0030 Mo от ≥ 0,200 до ≤ 0,300 Ca от ≥ 0,0005 до ≤ 0,0060 Cu ≤ 0,050 Ni ≤ 0,050, Стр.: 1 A 2 0 1 7 1 2 0 8 6 0 A Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" 2 0 1 7 1 2 0 8 6 0 (86) Заявка PCT: A 2 0 1 7 1 2 0 8 6 0 A R U 2 0 1 7 1 2 0 8 6 0 Стр.: 2 R U причем остальное приходится на железо и неизбежные примеси, в которой в соответствии с возможным наиболее широким технологическим интервалом во время непрерывного отжига горячей полосы и холодной полосы, изготовленной из этой стали, суммарное содержание (Mn + Si + Cr) установлено в зависимости от толщины полученной полосы следующим образом: вплоть до 1,00 мм: сумма (Mn + Si + Cr) ≥ 2,800 и ≤ 3,000%, свыше 1,00 до 2,00 мм: ...

Patent RU2017120860A3

ВУ"? 2017120860” АЗ Дата публикации: 26.07.2019 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017120860/02(036117) 06.11.2015 РСТ/ОЕ2015/1004774 06.11.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 10 2014 017 274.0 18.11.2014 РЕ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СВЕРХВЫСОКОПРОЧНАЯ ЗАКАЛИВАЮЩАЯСЯ НА ВОЗДУХЕ, МНОГОФАЗНАЯ СТАЛЬ, ОБЛАДАЮЩАЯ ОТЛИЧНЫМИ ТЕХНОЛОГИЧЕСКИМИ ХАРАКТЕРИСТИКАМИ, И СПОСОБ ПОЛУЧЕНИЯ УКАЗАННОЙ СТАЛИ Заявитель: ЗАЛЬЦГИТТЕР ФЛАХШТАЛЬ ГМБХ, ОЕ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [ ] приняты во внимание все пункты (см. Примечания) [Х] приняты во внимание следующие пункты: 1-22 [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) С22С 35/38 (2006.01) С21О 8/02 (2006.01) С21О 9/46 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) С22С38/00-С22С38/60, С21108/00, С21108/02, С21109/00, С2109/46 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепеь, ]-Р]а\ Ра, РАТЕМТЗСОРЕ, Раеагсв, ...

Hot isostatic pressing apparatus and method for cooling such apparatus

FIELD: systems for cooling articles arranged in loading compartment of furnace chamber of apparatus for hot isostatic pressing. SUBSTANCE: in order to provide uniform cooling of loading compartment of furnace chamber, hot pressurized working fluid is discharged out of loading compartment and cold working fluid is fed under pressure in such a way that it flows downwards through discharged pressurized hot working fluid outside loading compartment. Prepared by such process mixed working fluid is fed under pressure to loading compartment. EFFECT: enhanced uniformity of cooling loading compartment of furnace chamber. 22 cl, 4 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2 302 924 (13) C2 (51) ÌÏÊ B22F 3/15 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004125861/02, 17.02.2003 (72) Àâòîð(û): ÁÅÐÃÌÀÍ Êàðë (SE) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 17.02.2003 (73) Ïàòåíòîîáëàäàòåëü(è): Àâóðå Òåêíîëîäæèç ÀÁ (SE) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 20.02.2002 SE 0200487-7 (43) Äàòà ïóáëèêàöèè çà âêè: 27.05.2005 (45) Îïóáëèêîâàíî: 20.07.2007 Áþë. ¹ 20 2 3 0 2 9 2 4 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: WO 01/14087 A1, 01.03.2001. SU 1061934 A, 23.12.1983. EP 0438083 A1, 24.07.1991. US 6250907 Â1, 26.06.2001. US 4756680 À, 12.07.1988. US 4532984 À, 06.08.1985. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 20.09.2004 2 3 0 2 9 2 4 R U (87) Ïóáëèêàöè PCT: WO 03/070402 (28.08.2003) C 2 C 2 (86) Çà âêà PCT: SE 03/00255 (17.02.2003) Àäðåñ äë ïåðåïèñêè: 191036, Ñàíêò-Ïåòåðáóðã, à/ 24, "ÍÅÂÈÍÏÀÒ", ïàò.ïîâ. À.Â.Ïîëèêàðïîâó (54) ÓÑÒÐÎÉÑÒÂÎ ÄËß ÃÎÐß×ÅÃÎ ÈÇÎÑÒÀÒÈ×ÅÑÊÎÃÎ ÏÐÅÑÑÎÂÀÍÈß È ÑÏÎÑÎÁ ÎÕËÀÆÄÅÍÈß ÒÀÊÎÃÎ ÓÑÒÐÎÉÑÒÂÀ (57) Ðåôåðàò: Ïðåäëîæåííîå èçîáðåòåíèå îòíîñèòñ ê îõëàæäåíèþ èçäåëèé, ðàñïîëîæåííûõ â çàãðóçî÷íîì îòäåëåíèè ïå÷íîé êàìåðû óñòðîéñòâà äë ãîð ÷åãî èçîñòàòè÷åñêîãî ïðåññîâàíè . Äë îáåñïå÷åíè ðàâíîìåðíîãî îõëàæäåíè çàãðóçî÷íîãî îòäåëåíè ïå÷íîé êàìåðû èç ...

Method of manufacturing separator

提供一种能够精确制造具有高质量的隔板的隔板制造方法。在隔板(10)的制造方法中，利用具有不同加工形状并且顺次布置在金属的薄板材(12)的运送方向上的多个压力机(23至25)，对运送的金属薄板材(12)的相同的部位进行逐步成形加工，以形成流道槽(11)。在薄板材(12)的运送方向上彼此相邻的压力机(23)与压力机(24)之间并且在压力机(24)与压力机(25)之间，对薄板材(12)进行退火处理。

Method of metal part producing

FIELD: machine building. SUBSTANCE: invention relates to turbine machines and can be used during production of metal part, intended for turbomachine blade reinforcement on its front and rear edges. Method involves stage, on which, at least, one winding metal strip (102, 102') from thin metal foil with recesses, is positioned on forming equipment. Strip has possibility of manual deformation in cold state in space in three directions (X, Y, Z). At next stage performing isostatic pressing of, at least, one metal winding strip (102, 102') in equipment. At that, metal strip (102, 102') sintering takes place with production of metal part. EFFECT: result is manufacturing process simplification due to fewer operations and avoiding use of complex equipment. 9 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 607 389 C2 (51) МПК B21D 53/78 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2013120341, 05.10.2011 (24) Дата начала отсчета срока действия патента: 05.10.2011 Дата регистрации: (72) Автор(ы): ДАМБРИН,Брюно,Жак,Жерар (FR), ГОДОН,Тьерри (FR), ПЕРРУ,Ален,Робер,Ив (FR) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: WO 2009/039282 A1, 26.03.2009. RU 05.10.2010 FR 1058077 2297538 C2, 20.04.2007. RU 2318121 C1, 27.02.2008. EP 1574270 A1, 14.09.2005. (45) Опубликовано: 10.01.2017 Бюл. № 1 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.05.2013 (86) Заявка PCT: FR 2011/052323 (05.10.2011) (87) Публикация заявки PCT: 2 6 0 7 3 8 9 (43) Дата публикации заявки: 20.11.2014 Бюл. № 32 R U (73) Патентообладатель(и): СНЕКМА (FR) 27.12.2016 2 6 0 7 3 8 9 R U Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и партнеры" (54) СПОСОБ ИЗГОТОВЛЕНИЯ МЕТАЛЛИЧЕСКОЙ ДЕТАЛИ (57) Формула изобретения 1. Способ изготовления (200) металлической детали (30) для усиления лопатки ...

Quenching method

提出一种使淬火工件变形小和硬度符合要求的淬火方法，该淬火方法使用冷却剂，且进行特别控制，使被处理工件在淬火浴槽内的整个冷却过程中，淬火浴槽的表面始终处于压力下。

Method for repairing defects on hot parts of turbomachines through hybrid hot isostatic pressing (hip) process

열간 등압 압축 성형(HIP) 방법에서, 그 구조에 기공, 크랙, 공동 등의 결함을 갖는 처리될 부품이 부품의 기공, 크랙 및 결함보다 큰 사이즈를 갖는 분말 또는 알갱이 형태의 비금속 재료와 함께 컨테이너 내에 배치된다. HIP 프로세스 중에, 그 비금속 재료는 그 내에 매립된 부품의 전체 표면을 가압하여, 부품 자체 내에 내재되거나 내재되지 않은 결함을 감소시킬 수 있는 온도와 힘의 조합을 생성한다. 그 프로세스 중에 부품은 오염되지 않으며, 이에 따라 기계적 클리닝 또는 화학적 워싱의 간단한 공정에 의해 비금속 재료의 용이한 제거를 가능하게 한다. In the hot isostatic compression molding (HIP) method, a part to be treated having defects such as pores, cracks, and cavities in its structure is placed in a container together with a non-metallic material in the form of powder or granules having a size larger than the pores, cracks and defects of the part. are placed During the HIP process, the non-metallic material presses the entire surface of the part embedded therein, creating a combination of temperature and force that can reduce defects that are inherent or not within the part itself. During the process, the parts are not contaminated, thus enabling easy removal of non-metallic materials by simple processes of mechanical cleaning or chemical washing.

METHOD FOR PRODUCING METAL PARTS

1. Способ изготовления (200) металлической детали (30), в котором:- позиционируют на этапе (230), по меньшей мере, одну извилистую металлическую полоску (102, 102'), выполненную из гибкой металлической фольги, содержащей множество выемок, на формующем оборудовании (410, 420), при этом упомянутая металлическая извилистая полоска выполнена деформируемой вручную в холодном состоянии в трех направлениях в пространстве (X, Y, Z);- производят на этапе (240) изостатическое прессование упомянутой, по меньшей мере, одной металлической извилистой полоски (102, 102') в оборудовании (400), осуществляющем спекание упомянутой металлической извилистой полоски (102, 102') для получения упомянутой металлической детали (30).2. Способ по п.1, отличающийся тем, что перед упомянутым этапом (230) позиционирования вырезают на этапе (220) множество выемок (110), по меньшей мере, в одной гибкой металлической извилистой полоске (101) для формирования, по меньшей мере, одной извилистой металлической полоски (102, 102').3. Способ по п.1, отличающийся тем, что упомянутую, по меньшей мере, одну металлическую извилистую полоску формируют соединением двух слоев металлической фольги (101), вырезанной на упомянутом этапе (220) вырезания множества выемок (110).4. Способ по п.1, отличающийся тем, что перед этапом (230) позиционирования изготовляют, по меньшей мере, один металлический сектор, по меньшей мере, из одной гибкой металлической фольги (101), при этом упомянутая извилистая металлическая полоска образована на этапе (220) вырезанием множества выемок (110) в упомянутом, по меньшей мере, одном гибком металлическом секторе.5. Способ по одному из пп.1-4, отличающийся тем, что на этапе (220) вырезания выемок (110) выре� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2013 120 341 A (51) МПК B23P 15/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013120341/02, 05.10.2011 (71) Заявитель(и): СНЕКМА (FR) Приоритет(ы): (30) ...

MATERIAL WITH HIGH RESISTANCE TO WEAR

1. Способ получения материалов с изотропными механическими свойствами, улучшенной износостойкостью и высоким потенциалом закалки, при котором из ледебуритного инструментального стального сплава PM-способом с помощью распыления жидкого металла азотом получают порошок сплава и с помощью горячего изостатического прессования данного порошка получают HIP-заготовку или HIP-болванку, эту HIP-заготовку и/или изготовленную из нее заготовку подвергают высокому отжигу при температуре выше 1100°C, но по меньшей мере на 10°C ниже температуры плавления самой низкоплавкой фазы структуры, с продолжительностью более 12 ч, при этом средний размер включений карбидной фазы материала повышается по меньшей мере на 65%, их поверхность скругляется, а матрица гомогенизируется, после чего проводят дальнейшую обработку для получения термически улучшенных инструментов с высокой износостойкостью или элементов, подвергаемых абразивной нагрузке.2. Способ по п.1, при котором в качестве инструментального стального сплава используют материал - быстрорежущую сталь с химическим составом, мас.%Углерод (C) от 0,8 до 1,4Хром (Cr) от 3,5 до 5,0Молибден (Mo) от 0,1 до 10,0Ванадий (V) от 0,8 до 10,5Вольфрам (W) от 0,1 до 10,0Кобальт (Co) от 1,0 до 12,0,а также Si, Mn, S, N и альтернативно Ni, Al, Nb, Ti, и примеси, остальное железо, причем содержание углерода в матрице после улучшения устанавливают от 0,45 до 0,75, а средний диаметр фаз карбида устанавливают как 2,8 мкм или более, предпочтительно 3,2 мкм или более.3. Способ по п.1, при котором в качестве инструментального стального сплава применяют материал - сталь для холодной обработки с химическим составом, мас.%Углерод (C) от 1,0 до 3,0Хром (Cr) до 12,0Молибден (Mo) о РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК B22F 3/15 (11) (13) 2013 120 934 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013120934/02, 07.05.2013 (71) Заявитель(и): БЕЛЕР ЭДЕЛЬШТАЛЬ ГМБХ УНД КО КГ (AT) Приоритет(ы): (30) ...

PROCESS FOR PRODUCING A METAL PIECE

A method for making a metallic part, includes positioning at least one metallic coil formed from flexible metal foil including a plurality of notches, on a shaping tool, the at least one coil being manually deformable when cold along three directions in space (X, Y, Z); hot isostatic pressing the at least one metallic coil in a tool causing compaction of the metallic coil so as to obtain the metallic part.

Device for the carbon dioxide quenching of steel components after they have been subjected to a thermochemical treatment operation such as cementation

A device (10) for quenching with carbon dioxide comprises: (A) a quenching enclosure (12); (B) a high pressure reservoir (14) containing carbon dioxide; (C) a system (16, 18) for circulating carbon dioxide from the high pressure reservoir to the quenching enclosure; (D) a recuperation system (20, 22, 28, 36) for circulating at least part of the carbon dioxide present in the enclosure after a quenching operation towards the high pressure reservoir. The recuperation system comprises a low pressure reservoir (20), a system (22, 24) for circulating carbon dioxide from the enclosure to the low pressure reservoir and a system (26, 28, 29, 30) for circulating carbon dioxide from the low pressure reservoir to the high pressure reservoir.

STEEL COMPOSITION

OPTIMIZED STEEL MATERIAL

TITRE : MATÉRIAU EN ACIER OPTIMISÉ. Matériau en acier dont les grains qui le composent comprennent une matrice dans laquelle sont incorporés des précipités, les précipités comprenant au moins un élément métallique choisi parmi un élément métallique M, un élément métallique M', un élément métallique M'' ou leurs mélanges ; la microstructure de l'acier étant telle que les grains sont équiaxes et la taille moyenne des grains étant telle que la moyenne de leur plus grande dimension "Dmax" et/ou la moyenne de leur plus petite dimension "Dmin" est comprise entre 10 µm et 50 µm. Le matériau en acier présente des propriétés mécaniques optimisées, stables et isotropes, notamment afin que le matériau en acier puisse résister au mieux à des contraintes mécaniques et/ou thermiques. Figure d’abrégé : Figure 5. TITLE: OPTIMIZED STEEL MATERIAL. Steel material, the grains of which it is composed comprise a matrix in which precipitates are incorporated, the precipitates comprising at least one metallic element chosen from among a metallic element M, a metallic element M', a metallic element M'' or mixtures thereof; the microstructure of the steel being such that the grains are equiaxed and the average size of the grains being such that the average of their largest dimension "Dmax" and/or the average of their smallest dimension "Dmin" is between 10 μm and 50 µm. The steel material has optimized, stable and isotropic mechanical properties, in particular so that the steel material can best resist mechanical and/or thermal stresses. Abstract Figure: Figure 5.

GAS QUENCHING INSTALLATION AND CORRESPONDING QUENCHING METHOD

STEEL COMPOSITION

La présente invention concerne une composition d'acier comprenant, en pourcentages en poids de la composition totale: Carbone : 0,05-0,40, de préférence 0,10-0,30 ; Chrome : 2,50-5,00, de préférence 3,00-4,50; Molybdène : 4,00-6,00; Tungstène : 0,01-1,80, de préférence 0,02-1,50 ; Vanadium : 1,00-3,00, de préférence 1,50-2,50; Nickel : 2,00-4,00; Cobalt : 2,00-8,00, de préférence 3,00-7,00; Fer : solde ainsi que les impuretés inévitables, optionnellement comprenant en outre, un ou plusieurs des éléments suivants : Niobium : ≤ 2,00 ; Azote : ≤ 0,50, de préférence ≤ 0,20 ; Silicium : ≤ 0,70, de préférence 0,05-0,50; Manganèse : ≤ 0,70, de préférence 0,05-0,50; Aluminium : ≤ 0,15, de préférence ≤ 0,10 ; la teneur combinée en Niobium + Vanadium étant comprise dans la gamme 1,00-3,50 ; et la teneur en Carbone + Azote étant comprise dans la gamme 0,05-0,50. Elle concerne en outre son procédé de fabrication, l'ébauche d'acier obtenu et un organe mécanique le comprenant. The present invention relates to a steel composition comprising, in percentages by weight of the total composition: Carbon: 0.05-0.40, preferably 0.10-0.30; Chromium: 2.50-5.00, preferably 3.00-4.50; Molybdenum: 4.00-6.00; Tungsten: 0.01-1.80, preferably 0.02-1.50; Vanadium: 1.00-3.00, preferably 1.50-2.50; Nickel: 2.00-4.00; Cobalt: 2.00-8.00, preferably 3.00-7.00; Iron: balance and unavoidable impurities, optionally further comprising one or more of the following: Niobium: ≤ 2.00; Nitrogen: ≤ 0.50, preferably ≤ 0.20; Silicon: ≤ 0.70, preferably 0.05-0.50; Manganese: ≤ 0.70, preferably 0.05-0.50; Aluminum: ≤ 0.15, preferably ≤ 0.10; the combined Niobium + Vanadium content being in the range 1.00-3.50; and the carbon + nitrogen content being in the range 0.05-0.50. It also relates to its manufacturing process, the steel blank obtained and a mechanical member comprising it.

RAPID COOLING PROCESS OF PARTS BY CONVECTIVE AND RADIATIVE TRANSFER

Magnetic substances

Motor vehicle component made of triple-layer laminated steel

Separator manufacturing method

OXIDE DISPERSION REINFORCED TEMPERED STRENGTH MARTENSITIC STEEL WITH HIGH CORROSION RESISTANCE, TENACITY AND MECHANICAL PROPERTIES AT HIGH TEMPERATURE, AND PROCESS FOR PRODUCTION THEREOF

Acier martensitique trempé renforcé par dispersion d'oxydes d'excellente résistance à la corrosion, ténacité et propriétés mécaniques à température élevée, et procédé de production de celui-ci. Il est fourni un acier martensitique trempé (ODS) renforcé par dispersion d'oxydes d'excellente résistance à la corrosion, ténacité et propriétés mécaniques à température élevée. L'acier ODS martensitique trempé contient une structure de double phase de martensite trempée et d'a-ferrite résiduelle, dans laquelle la teneur en l'a-ferrite résiduelle est contrôlée à au plus 30 % en volume. Il est également fourni un procédé de production de l'acier martensitique trempé ODS.

DEVICE FOR TEMPERING STEEL PARTS

Non-oriented electrical steel sheet and its manufacturing method

GAS CUTTING CELL FOR STEEL PARTS

L'invention concerne un procédé de trempe d'une charge en acier par écoulement d'un gaz au niveau de la charge par l'intermédiaire d'un moyen d'entraînement du gaz. Le moyen d'entraînement est commandé pour faire s'écouler le gaz au niveau de la charge à une vitesse qui varie selon un profil de vitesses dont au moins une partie comprend, successivement, un palier à une première vitesse (44) et un palier à une seconde vitesse (46) supérieure à la première vitesse. The invention relates to a method of quenching a steel charge by flowing a gas at the charge through a gas drive means. The driving means is controlled to flow the gas at the load at a speed which varies according to a velocity profile of which at least a portion comprises, successively, a bearing at a first speed (44) and a bearing at a second speed (46) greater than the first speed.

PROCESSING PROCESS OF OPTIMIZED STEEL MATERIAL.

TITRE : PROCÉDÉ DE TRAITEMENT D'UN MATÉRIAU EN ACIER OPTIMISÉ. Procédé de traitement d'un matériau en acier dont les grains qui le composent comprennent une matrice dans laquelle sont incorporés des précipités, les précipités comprenant au moins un élément métallique choisi parmi un élément métallique M, un élément métallique M', un élément métallique M'' ou leurs mélanges ; la microstructure de l'acier étant telle que les grains sont équiaxes et la taille moyenne des grains étant telle que la moyenne de leur plus grande dimension "Dmax" et/ou la moyenne de leur plus petite dimension "Dmin" est comprise entre 10 µm et 50 µm. Le matériau en acier présente des propriétés mécaniques optimisées, stables et isotropes, notamment afin que le matériau en acier puisse résister au mieux à des contraintes mécaniques et/ou thermiques. Figure d’abrégé : Figure 5. TITLE: PROCESS FOR PROCESSING OPTIMIZED STEEL MATERIAL. Process for treating a steel material, the grains of which it is composed comprise a matrix in which precipitates are incorporated, the precipitates comprising at least one metallic element chosen from among a metallic element M, a metallic element M', a metallic element M '' or mixtures thereof; the microstructure of the steel being such that the grains are equiaxed and the average size of the grains being such that the average of their largest dimension "Dmax" and/or the average of their smallest dimension "Dmin" is between 10 μm and 50 µm. The steel material has optimized, stable and isotropic mechanical properties, in particular so that the steel material can best resist mechanical and/or thermal stresses. Abstract Figure: Figure 5.

Method of producing martensitic stainless steel strip

In the method of producing a martensitic stainless steel strip (2), a quenching furnace (3) of a quenching process includes a temperature raising unit (3A) and a holding unit (3B). When a predetermined quenching temperature is set as T (°C), the temperature raising unit (3A) is set to a temperature range of 0.7T (°C) or higher and lower than T (°C), and a set heating temperature on an exit side of the steel strip (2) is set to be higher than a set heating temperature on an entry side of the steel strip (2). The holding unit (3B) is set to the quenching temperature T (°C). A time spent in the furnace (3) by the steel strip (2) in the temperature raising unit (3A) is equal to or longer than a time spent in the furnace (3) by the steel strip (2) in the holding unit (3B).

Cold work steel

A cold work steel has the following chemical composition in weight-%: 1.25 -1.75 % (C+N), however at least 0.5 % C 0.1 - 1.5 % Si 0.1 - 1.5 % Mn 4.0 - 5.5 % Cr 2.5 - 4.5 % (Mo+W/2), however max. 0.5 % W 3.0 - 4.5 % (V+Nb/2), however max. 0.5 % Nb max 0.3 % S balance iron and unavoidable impurities, and a microstructure which in the hardened and tempered condition of the steel contains 6-13 vol-% of vanadium-rich MX-carbides, -nitrides and/or carbonitrides which are evenly distributed in the matrix of the steel, where X is carbon and/or nitrogen, at least 90 vol-% of said carbides, nitrides and/or carbonitrides having an equivalent diameter, Deq, which is smaller than 3.0 ~m; and totally max. 1 vol-% of other, possibly existing carbides, nitrides or carbonitrides.

Non-oriented electrical steel sheet and its manufacturing method

질량％ 로, C : 0.0050 ％ 이하, Si : 2.8 ∼ 6.5 ％, Mn : 0.05 ∼ 2.0 ％, P : 0.10 ％ 이하, S : 0.0050 ％ 이하, Al : 0.3 ∼ 2.0 ％, N : 0.0050 ％ 이하, Zn : 0.0005 ∼ 0.0050 ％ 를 함유하는 슬래브를 열간 압연하고, 열연판 어닐링하고, 냉간 압연하고, 마무리 어닐링하여 무방향성 전기 강판을 제조할 때, 상기 열연판 어닐링 시의 노점을 0 ∼ 70 ℃, 상기 마무리 어닐링 시의 분위기의 질소 함유량을 30 vol％ 이하, 노점을 -20 ℃ 이하로 함으로써, 강판의 편측 표면으로부터 판두께 1/20 까지의 층에 있어서 AlN 으로서 존재하는 질소량에 대한, 전체 판두께에 있어서 AlN 으로서 존재하는 질소량의 비를 5.0 이상으로 함으로써, 자속 밀도의 저하나 생산성의 저하를 초래하지 않고, 고자속밀도 - 고주파 저철손의 무방향성 전기 강판을 얻는다

Tool steel

A tool steel, comprising high speed steel and cold working steel, produced from metal powder by compaction at a high pressure and a high temperature to full density. The steel is characterized in that a) at least 40% of the carbides of a randomly chosen section have a largest extension > 1.5 mum, b) at least 25% of the carbide area of a randomly chosen section is contributed by carbides with an extension > 3 mum, c) the steel contains carbides, the maximum size Lmax of these carbides and/or of carbide aggregates being a function of the diameter or smallest gauge of the product, and that d) the steel contains at least 0.7% carbon and at least 10% of one or several of the following metals: chromium, tungsten, molybdenum, and vanadium, or mixtures of these.

Steel for cold treatment

FIELD: metallurgy; steels for cold treatment. SUBSTANCE: proposed steel has the following composition, mass-%: 1.25-1.75 (C+N); at least 0.5%C; 0.1-1.5% Mn; 4.0-5.5% Cr; 2.5-4.5% (Mo+W/2); maximum 0.5%W; 3.0-4.5% (V+Nb/2); maximum 0.5%Nb; maximum 0.3% S; the remainder being iron and unavoidable admixtures. Microstructure of steel in hardened and tempered state contains 6-13 vol-% of vanadium-enriched MX carbides, -nitrides and/or carbo-nitrides smoothly distributed in base of steel, where X is carbon and/or nitrogen; at least 90% of said carbides, nitrides and/or carbo-nitrides have equivalent diameter D eq lesser than 3.0 mcm; total amount of other carbides, nitrides and/or carbo-nitrides does not exceed 1 vol-%. Proposed steel may be used for manufacture of tools by cutting, shearing and/or stamping in cold state or by molding metal powder. EFFECT: improved characteristics; increased impact viscosity. 25 cl,, 9 dwg, 3 tbl ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 290 452 (13) C9 (51) ÌÏÊ C22C 38/26 C22C 33/02 (2006.01) (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÑÊÎÐÐÅÊÒÈÐÎÂÀÍÍÎÅ ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ Ïðèìå÷àíèå: áèáëèîãðàôè îòðàæàåò ñîñòî íèå ïðè ïåðåèçäàíèè (21), (22) Çà âêà: 2003133976/02, 17.05.2002 (30) Êîíâåíöèîííûé ïðèîðèòåò: 21.06.2001 SE 0102233-4 (73) Ïàòåíòîîáëàäàòåëü(è): Óääåõîëüì Òóëèíã Àêòèåáîëàã (SE) R U (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 17.05.2002 (72) Àâòîð(û): ÑÀÍÄÁÅÐà Îää (SE), ÒÈÄÅÑÒÅÍ Ìàãíóñ (SE), ÉÅÍÑÑÎÍ Ëåííàðò (SE) (43) Äàòà ïóáëèêàöèè çà âêè: 10.05.2005 Îïóáëèêîâàíî íà CD-ROM: MIMOSA RBI 2006/36D 2 2 9 0 4 5 2 (45) Îïóáëèêîâàíî: 27.12.2006 RBI200636D (15) Èíôîðìàöè î êîððåêöèè: Âåðñè êîððåêöèè ¹ 1 (W1 C2) 2 2 9 0 4 5 2 R U (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: WO 0125499 À, 12.04.2001. SU 973661 À, 15.11.1982. RU 2164961 Ñ2, 10.04.2001. WO 9840180 À, 17.09.1998. C 9 C 9 (48) Êîððåêöè îïóáëèêîâàíà: 20.05.2007 Áþë. ¹ 14/2007 (85) Äàòà ïåðåâîäà çà âêè PCT ...

Improved steel without slag, method of manufacturing details without scale of this steel and method of obtaining hot-rolled steel strip

FIELD: metallurgy. SUBSTANCE: steel features the following chemical composition, in wt %: C 0.04-0.50, Mn 0.5-6.0, Al 0.5-3.0, Si 0.05-3.0, Cr 0.05-3.0, Ni less than 3.0 Cu less than 3.0, Ti 0.010-0.050, B 0.0015-0.0040, C less 0.10, S from more than 0.01 to 0.05, N less than 0.020, the rest is iron and unavoidable impurities. EFFECT: high resistance to scale formation. 27 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 618 958 C2 (51) МПК C21D 8/02 (2006.01) C22C 38/58 (2006.01) C22C 38/60 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014142690, 19.03.2013 (24) Дата начала отсчета срока действия патента: 19.03.2013 Дата регистрации: (72) Автор(ы): ШЁТТЛЕР, Йоахим (DE), ЛУТЕР, Фридрих (DE), МЮТЦЕ, Штефан (DE) Приоритет(ы): (30) Конвенционный приоритет: R U (73) Патентообладатель(и): ЗАЛЬЦГИТТЕР ФЛАХШТАЛЬ ГМБХ (DE) 11.05.2017 (56) Список документов, цитированных в отчете о поиске: JP 2011-224584 A, 10.11.2011. RU 23.03.2012 DE 10 2012006470.5; 15.03.2013 DE 10 2013004905.9 (45) Опубликовано: 11.05.2017 Бюл. № 14 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 23.10.2014 (86) Заявка PCT: DE 2013/000165 (19.03.2013) 2 6 1 8 9 5 8 (43) Дата публикации заявки: 20.05.2016 Бюл. № 14 2425171 C2, 27.07.2011. EP 1394276 B1, 27.10.2010. EP 2130938 A1, 09.12.2009. 2 6 1 8 9 5 8 R U WO 2013/139327 (26.09.2013) C 2 C 2 (87) Публикация заявки PCT: Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) УЛУЧШАЕМАЯ СТАЛЬ БЕЗ ОКАЛИНЫ, СПОСОБ ИЗГОТОВЛЕНИЯ ДЕТАЛИ БЕЗ ОКАЛИНЫ ИЗ ЭТОЙ СТАЛИ И СПОСОБ ПОЛУЧЕНИЯ ГОРЯЧЕКАТАНОЙ ПОЛОСЫ ИЗ СТАЛИ (57) Формула изобретения 1. Окалиностойкая сталь для изготовления закаленных деталей, имеющая следующий химический состав, мас.%: С: 0,04-0,50 Μn: 0,5-6,0 Al: 0,5-3,0 Si: 0,05-3,0 Cr: 0,05-3,0 Ni: менее 3,0 Cu: менее 3,0 Ti: 0,010-0,050 В: 0,0015-0,0040 P: менее 0,10 Стр.: 1 C 2 2 6 1 8 9 5 8 C 2 R U 2 6 1 8 9 5 8 Стр.: 2 R U ...

METHOD FOR COOLING A DEVICE FOR A HOT ISOSTATIC PRESS AND A DEVICE FOR A HOT ISOSTATIC PRESS

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2004 125 861 (13) A B 22 F 3/15 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004125861/02, 17.02.2003 (71) Çà âèòåëü(è): Ôëîó Õîëäèíãç ÑÀÃË (CH) (30) Ïðèîðèòåò: 20.02.2002 SE 0200487-7 (72) Àâòîð(û): ÁÅÐÃÌÀÍ Êàðë (SE) (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 20.09.2004 (74) Ïàòåíòíûé ïîâåðåííûé: Ïîëèêàðïîâ Àëåêñàíäð Âèêòîðîâè÷ (86) Çà âêà PCT: SE 03/00255 (17.02.2003) Àäðåñ äë ïåðåïèñêè: 191036, Ñàíêò-Ïåòåðáóðã, à/ 24, "ÍÅÂÈÍÏÀÒ", ïàò.ïîâ. À.Â.Ïîëèêàðïîâó (54) ÑÏÎÑÎÁ ÎÕËÀÆÄÅÍÈß ÓÑÒÐÎÉÑÒÂÀ ÄËß ÃÎÐß×ÅÃÎ ÈÇÎÑÒÀÒÈ×ÅÑÊÎÃÎ R U Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá îõëàæäåíè îáúåêòîâ, ïîìåùåííûõ â çàãðóçî÷íîå îòäåëåíèå ïå÷íîé êàìåðû ïå÷è óñòðîéñòâà äë ãîð ÷åãî èçîñòàòè÷åñêîãî ïðåññîâàíè , âêëþ÷àþùèé: âûïóñê ãîð ÷åé ðàáî÷åé ñðåäû ïîä äàâëåíèåì èç çàãðóçî÷íîãî îòäåëåíè , ïîäà÷ó õîëîäíîé ðàáî÷åé ñðåäû ïîä äàâëåíèåì ñ îáåñïå÷åíèåì åå ïðîõîæäåíè âíèç ÷åðåç âûïóñêàåìóþ ãîð ÷óþ ðàáî÷óþ ñðåäó ïîä äàâëåíèåì ñíàðóæè çàãðóçî÷íîãî îòäåëåíè è ââåäåíèå ïîëó÷åííîé òàêèì îáðàçîì ñìåøàííîé ðàáî÷åé ñðåäû ïîä äàâëåíèåì â çàãðóçî÷íîå îòäåëåíèå. 2. Ñïîñîá ïî ï.1, â êîòîðîì óêàçàííóþ ñìåøàííóþ ðàáî÷óþ ñðåäó ïîä äàâëåíèåì ïîñëå åå ââåäåíè â çàãðóçî÷íîå îòäåëåíèå âûïóñêàþò èç ýòîãî îòäåëåíè â êà÷åñòâå ãîð ÷åé ðàáî÷åé ñðåäû ïîä äàâëåíèåì, ñìåøèâàåìîé ñ õîëîäíîé ðàáî÷åé ñðåäîé ïîä äàâëåíèåì. 3. Ñïîñîá ïî ï.1 èëè 2, â êîòîðîì õîëîäíóþ ðàáî÷óþ ñðåäó ïîä äàâëåíèåì ââîä ò â ïå÷è â ïîòîê âûïóñêàåìîé ðàáî÷åé ñðåäû ïîä äàâëåíèåì íà áîëåå âûñîêîì óðîâíå, ÷åì óðîâåíü, íà êîòîðîì â çàãðóçî÷íîå îòäåëåíèå ïîäàþò ñìåøàííóþ ðàáî÷óþ ñðåäó ïîä äàâëåíèåì. 4. Ñïîñîá ïî ï.3, â êîòîðîì õîëîäíóþ ðàáî÷óþ ñðåäó ïîä äàâëåíèåì ââîä ò â âûïóñêàåìóþ ãîð ÷óþ ðàáî÷óþ ñðåäó ïîä äàâëåíèåì íà óðîâíå, íàõîä ùåìñ âûøå ïîëîâèíû âûñîòû çàãðóçî÷íîãî îòäåëåíè , ïðåäïî÷òèòåëüíî íà óðîâíå, íàõîä ùåìñ âáëèçè âåðõíåé ÷àñòè ýòîãî îòäåëåíè . 5. Ñïîñîá ïî ï.1 èëè 2, â êîòîðîì ãîð ÷óþ ðàáî÷óþ ñðåäó ïîä äàâëåíèåì ...

STEEL FOR THE PRODUCTION OF CEMENTED PARTS, CEMENTED PART PRODUCED WITH THIS STEEL AND METHOD FOR MANUFACTURING THE SAME

Acier pour la fabrication de pièces cémentées, caractérisé en ce que sa composition, en pourcentages pondéraux est : - 0,1% ≤ C ≤ 0,15% ; - 0,8% ≤ Mn ≤ 2% ; - 1% ≤ Cr ≤ 2,5% ; - 0,2% ≤ Mo ≤ 0,6% ; - traces ≤ Si ≤ 0,35% ; - traces ≤ Ni ≤ 0,7% ; - traces ≤ B ≤ 0,005% ; - traces ≤ Ti ≤ 0,1% ; - traces ≤ N ≤ 0,01% si 0.0005 % (5ppm) ≤ B ≤ 0,005%, et traces ≤ N ≤ 0.02 % si traces ≤ B ≤ 0.0005 % (5ppm); - traces ≤ Al ≤ 0,1% ; - traces ≤ V ≤ 0,3% ; - traces ≤ P ≤ 0,025% ; - traces ≤ Cu ≤ 1%, de préférence ≤ 0.6 % ; - traces ≤ S ≤ 0,1% ; le reste étant du fer et des impuretés résultant de l'élaboration. Pièce cémentée réalisée avec cet acier, et son procédé de fabrication. Steel for the manufacture of cemented parts, characterized in that its composition, in percentages by weight, is: - 0.1% ≤ C ≤ 0.15%; - 0.8% ≤ Mn ≤ 2%; - 1% ≤ Cr ≤ 2.5%; - 0.2% ≤ Mo ≤ 0.6%; - traces ≤ If ≤ 0.35%; - traces ≤ Ni ≤ 0.7%; - traces ≤ B ≤ 0.005%; - traces ≤ Ti ≤ 0.1%; - traces ≤ N ≤ 0.01% if 0.0005% (5ppm) ≤ B ≤ 0.005%, and traces ≤ N ≤ 0.02% if traces ≤ B ≤ 0.0005% (5ppm); - traces ≤ Al ≤ 0.1%; - traces ≤ V ≤ 0.3%; - traces ≤ P ≤ 0.025%; - traces ≤ Cu ≤ 1%, preferably ≤ 0.6%; - traces ≤ S ≤ 0.1%; the rest being iron and impurities resulting from the elaboration. Cemented part made with this steel, and its manufacturing process.

Non-directional electromagnetic steel sheet and manufacturing method thereof

對以質量%計含有C：0.0050%以下、Si：2.8%～6.5%、Mn：0.05%～2.0%、P：0.10%以下、S：0.0050%以下、Al：0.3%～2.0%、N：0.0050%以下、Zn：0.0005%～0.0050%的板坯進行熱軋、熱軋板退火、冷軋、最終退火而製造無方向性電磁鋼板時，藉由將所述熱軋板退火時的露點設為0℃～70℃、將所述最終退火時的環境的含氮量設為30 vol%以下且將露點設為-20℃以下，並且藉由將總板厚中以AlN形式存在的氮量相對於自鋼板的單側表面至板厚1/20的層中以AlN形式存在的氮量之比設為5.0以上，而在不導致磁通密度的降低及生產性的降低的情況下獲得高磁通密度-高頻低鐵損的無方向性電磁鋼板。

High-strength hot-dip galvanized steel sheet and method for producing same

Material with high resistance against wearing and the process for its production

Hot isostatic pressing of single crystal superalloy articles

A method for the densification of a shaped nickel base single crystal alloy article utilizing a pre-HIP, a hot isostatic pressing (HIP) step, and post-HIP solution heat treatment to enhance removal of casting porosity in a finished article.

Method for repairing defects on hot parts of turbomachines through hybrid hot isostatic pressing (hip) process

In a hot isostatic pressing (HIP) method, the component to be treated, affected by imperfections, like porosity, cracks and cavities in its structure, is placed into a container 11 together with non-metallic material 12 in form of powder or grains having size greater than the porosity and the cracks and imperfections of the component. During the HIP process, the non-metallic material presses 12 on the whole surface of the embedded component in order to generate a combination of temperature and forces capable to reduce defects, embedded and not embedded, in the component itself. The component is not contaminated during the process thus allowing easily removal of the non-metallic material by a simple operation of mechanical cleaning or chemical washing.

Process for the preparation of a dispersion strengthened copper material and dispersion strengthened copper material

Die Erfindungbetrifft Verfahren zur Herstellung eines dispersionsverfestigten Kupferwerkstoffes aufweisend die folgenden Schritte: Bereitstellen eines Pulvergemischs enthaltend mindestens 99 Ma-% Cu-Pulver, mindestens 0,6 Ma-% AlO-Pulver und mindestens 0,03 Ma-% B-Pulver, Kugelmahlen des Pulvergemischs zur Bildung von Partikeln aufweisend eine Cu-Matrix und darin eingeschlossene Dispersoide.Ein erfindungsgemäßer dispersionsverfestigter Kupferwerkstoff enthält mindestens 99 Ma-% Cu, mindestens 0,6 Ma-% AlOund mindestens 0,03 Ma-% B. The invention relates to methods of making a dispersion strengthened copper material, comprising the steps of providing a powder mixture containing at least 99 mole% Cu powder, at least 0.6 mole% AlO powder, and at least 0.03 mole% B powder, ball milling the A powder mixture for forming particles comprising a Cu matrix and dispersoids enclosed therein. A dispersion strengthened copper material according to the invention contains at least 99% by mass Cu, at least 0.6% by mass AlO and at least 0.03% by mass B.

Method of cooling a hot isostatic pressing device and a hot isostatic pressing device

A method of cooling a load provided in a load compartment in a furnace chamber of a furnace of a hot isostatic pressing device includes releasing hot pressure medium from the load compartment. Cool pressure medium is provided for enabling it to fall through the released hot pressure medium outside the load compartment. The thus obtained mixed pressure medium is led into the load compartment. A hot isostatic pressing device includes a load compartment having an aperture near an upper portion thereof configured to vent warm pressure medium into a region surrounding the compartment and a conduit configured to introduce cool pressure medium into the region surrounding the compartment for mixing with the warm medium. The compartment also includes an aperture near a lower portion thereof configured to receive a mix of warm and cool pressure medium from the region surrounding the compartment.

Cold Work

A cold work steel has the following chemical composition in weight-%: 1.25-1.75% (C+N), however at least 0.5% C 0.1-1.5% Si 0.1-1.5% Mn 4.0-5.5% Cr 2.5-4.5% (Mo+W/2), however max. 0.5% W 3.0-4.5% (V+Nb/2), however max. 0.5% Nb max 0.3% S balance iron and unavoidable impurities, and a microstructure which in the hardened and tempered condition of the steel contains 6-13 vol-% of vanadium-rich MX-carbides, -nitrides and/or carbonitrides which are evenly distributed in the matrix of the steel, where X is carbon and/or nitrogen, at least 90 vol-% of said carbides, nitrides and/or carbonitrides having an equivalent diameter, Deq, which is smaller than 3.0 mum; and totally max. 1 vol-% of other, possibly existing carbides, nitrides or carbonitrides.

Heat-treated steel product having high strength and excellent chemical conversion processability, and manufacturing method for same

Assembly component

The present invention relates to an assembly component of an alloy based on iron, nickel and/or cobalt containing at least 10% (w/w) chromium, the assembly component having an annular shape with an inner surface and an outer surface and a thickness between the inner surface and the outer surface in the range of 0.1 mm to 5 mm, the alloy having a content of nitrogen in solid solution providing a microhardness in the range of 250 HV 0.05 to 370HV 0.05 at a depth from the surface in the range of 0 µm to 100 µm. The invention also relates to an assembly with the assembly component.

Atmosphere control during continuous heat treatment of metal strips

A method for heat treating metallic strips inside a heat treatment chamber at a pressure greater than atmospheric pressure including passing the strips through at least one heating zone of the chamber and moving the strip through at least one cooling zone of the chamber. A first protective gas atmosphere containing nitrogen and hydrogen and/or helium is established in all but at least one cooling zone. The at least one cooling zone has a second protective atmosphere containing nitrogen and a second amount of hydrogen, the second amount of hydrogen is greater than the first amount. Nitrogen is introduced into the chamber, and a protective gas containing a third hydrogen content greater than the second hydrogen content is injected into the cooling zone, producing a gas exchange between one zone of the chamber having the first protective atmosphere and the cooling zone, and controlling the flow of introduction and injection.

METHOD FOR THE POWDER METALLURGICAL PRODUCTION OF OBJECTS

Process and apparatus for high pressure gas quenching in an atmospheric furnace

PROCESS AND APPARATUS FOR HIGH PRESSURE GAS QUENCHING IN AN ATMOSPHERIC FURNACE ABSTRACT Apparatus and process for recycling a quenching gas, such as helium, to be used with a treating gas, such as a carburizing gas, for the treating of components in an atmospheric furnace.

Cold work alloy steel and method for making the same

본 발명은 부품의 분말야금학적 제조용 냉간가공 합금강, 특히 사용 품질이 개선된 공구의 분말야금학적 제조용 냉간가공 합금강에 대한 것이다. 본 발명에서는 휨 파괴 강도, 충격 휨 능력 및 내마모성과 같은 중요한 특성들을 높은 수준으로 끌어 올리기 위하여, 2.05 내지 2.65 중량 %의 C, 6.10 내지 9.80 중량 %의 Cr, 0.50 내지 2.40 중량 %의 W, 2.15 내지 4.70 중량 %의 Mo, 7.05 내지 9.0 중량 %의 V, 0.25 내지 2.45 중량 %의 Nb, 0.04 내지 0.22 중량 %의 N 및 2.6 중량 % 이하의 불순물 및 잔존물로서 제조시 발생되는 철(Fe)을 함유한 오염물을 포함하며, 부품의 분말야금학적 제조용 재료로서, 100ppm 보다 적은 산소(O) 함량 및 DIN 50 602의 테스트에 따라서 최대 3 K0-값에 해당하는 비금속 개재물의 함량 및 분자 배열을 갖는 합금이 사용된다. The present invention relates to cold-working alloy steel for powder metallurgy production of parts, in particular cold-working alloy steel for powder metallurgy production of tools with improved use quality. In the present invention, in order to bring up important properties such as flexural fracture strength, impact bending ability and wear resistance to a high level, 2.05 to 2.65 wt% C, 6.10 to 9.80 wt% Cr, 0.50 to 2.40 wt% W, 2.15 to 4.70 weight% Mo, 7.05 to 9.0 weight% V, 0.25 to 2.45 weight% Nb, 0.04 to 0.22 weight% N and up to 2.6 weight% impurities and iron (Fe) generated during preparation as residue As a powder metallurgical manufacturing material for contaminants, alloys containing oxygen (O) content of less than 100 ppm and nonmetallic inclusions and molecular arrangements of up to 3 K0-value according to the test of DIN 50 602 are used. do.

Gas quenching cell for steel parts.

La invencion se refiere a un metodo para templar una carga de acero al hacer fluir un gas alrededor de la carga usando un medio de impulsion de gas. El medio de impulsion de gas se controla tal que el gas fluya alrededor de la carga a una velocidad que varia de acuerdo al perfil de velocidad, al menos una parte del cual comprende, sucesivamente, una etapa a una primera velocidad (44) y una etapa a una segunda velocidad (46) que es mayor que la primera.

Cold workable steel for powder metallurgical manufacture of steel parts

Material with high wear resistance

FIELD: metallurgy. SUBSTANCE: invention refers to metallurgy, particularly to production of ledeburite tool steel by powder metallurgy method. Method of obtaining a material with isotropic mechanical properties, enhanced wear resistance and high tempering potential involves obtainment of powder out of ledeburite tool steel by powder metallurgy method by spraying liquid steel with nitrogen, and further obtainment of HIP blank by hot isostatic compression of the powder. The blank is overannealed at temperature above 1100°C and at least by 10°C below melting point of the most low-melting phase of steel structure for over 12 hours to ensure that average amount of carbide phase inclusions increases at least by 65%, inclusion surface rounding and matrix homogenisation, then the blanc is refined by quenching with further tempering . Material shows good isotropic mechanical properties, and share of carbide phases M 6 C- and MC carbides comprises at least 7.0 vol % after thermal refining, with average size of carbide phase inclusions over 2.8 mcm in the matrix. Carbon content in the matrix is 0.45-0.75 wt %. EFFECT: material shows high wear resistance. 9 cl, 10 dwg, 2 tbl

DEVICE AND METHOD FOR GAS BREAKDOWN

Method for thermomechanical processing of ingot metallurgy near gamma titanium aluminides to refine grain size and optimize mechanical properties

A method for thermomechanically processing gamma titanium aluminide alloy wrought products comprises the following steps: a) a near gamma titanium aluminide alloy ingot is cast; b) the ingot is hot isostatically pressed (HIP'ed) to seal off casting defects; c) the HIP'ed ingot is prepared into suitable forging preforms with or without intermediate homogenization heat treatment; d) the forging preforms are isothermally forged into suitable end product preforms at temperatures sufficiently close to the phase line between the alpha+gamma and alpha-two+gamma phase fields so as to break down the ingot microstructure and to yield a largely equiaxed gamma microstructure; and e) the end product preforms are processed into the desired wrought end products through a controlled rolling process or a closed-die forging operation.

DEVICES FOR TURNING UNDER HIGH PRESSURE AND METHODS OF CHANGING THE PROPERTIES OF THE MATERIAL OF THE BILLETS WITH THE USE OF SUCH DEVICES

Device for recovering and converting heat energy into electrical energy

本发明提供加工性、弯曲加工部的镀层密合性、延伸凸缘加工部的耐腐蚀性、表面外观优良的高强度热镀锌钢板。一种高强度热镀锌钢板，在钢板表面上具有每单面的镀层附着量为20～120g/m 2 的锌镀层，所述钢板含有C：0.02％以上且0.30％以下、Si：0.01％以上且2.5％以下、Mn：0.1％以上且3.0％以下、P：0.003％以上且0.08％以下、S：0.01％以下、Al：0.001％以上且0.20％以下、Ti：0.03％以上且0.40％以下，且余量由Fe和不可避免的杂质构成。在镀层下方距离钢板表面10μm以内的C与Ti的浓度比(C/Ti)以原子比计为0.8以上且1.5以下，并且在镀层下方距离钢板表面100μm以内的钢板表层部中生成的选自Fe、Si、Mn、P、Al、Ti中的一种以上的氧化物以氧量计合计为每单面0.05g/m 2 以下。

Method of welding superalloys

A method (100) of welding a superalloy component (10) includes the following sequential steps. A welding step (110) for welding a cavity (12) using a filler metal (14) in an inert atmosphere, where the cavity (12) is located in the component. A covering step (120) for covering the filler metal (14) and a portion of the component with a weld filler layer (18) in the inert atmosphere. The weld filler layer (18) has a greater ductility than material comprising the component and/or material comprising the filler metal (14). A second covering step (130) for covering the weld filler layer (18) with a braze material (20), and subsequently performing a brazing operation. A heat treating step (140) heat treats the component.

GAS CUTTING CELL FOR STEEL PARTS

Corrosion resistant product and method of its manufacture

Rapid cooling method for parts by convective and radiative transfer

Un procédé de refroidissement rapide de pièces métalliques à l~aide d~un gaz de refroidissement sous pression, se caractérisant en ce que le gaz de refroidissement comprend un (ou plusieurs) gaz principal absorbant le rayonnement infra-rouge, choisi de façon à améliorer le transfert thermique à la pièce en conjuguant les phénomènes de transferts radiatif et convectif, et de façon à optimiser le coefficient de transfert convectif.

Cold work steel alloy for powder metallurgical production of parts

Cold work steel

Rapid cooling of metal components involves using a cooling gas mixture including a gas that absorbs infrared radiation to improve heat transfer within the component by convection and radiation

Rapid cooling of metal components is carried with a cooling gas under pressure. The cooling gas includes one or more gases that absorb infrared radiation, to improve the heat transfer of the component in conjunction with the phenomena of radiation and convection transfer, and to improve the coefficient of convection transfer. A Independent claim is given for utilization of the method in an installation for the rapid cooling of metal components with the aid of a gas under pressure, optimized to operate with nitrogen, using a cooling gas including 20-80% of a gas absorbing infrared radiation and 80-20% of hydrogen and/or helium. The composition of the gas is adjusted so that it is not necessary to provide any significant modifications to the installation.

Grain refinement and optimization process of the mechanical properties for thermomechanical treatment of cast titanium aluminides below the gamma range

Steel alloy for manufacture of parts by method of powder metallurgy and method of manufacture of parts or tools from steel alloy

FIELD: alloyed tool steels for manufacture of parts by powder metallurgy method; tools for cold metal working. SUBSTANCE: proposed alloyed tool steel is used for manufacture of parts by powder metallurgy method. Proposed steel contains the following components, mass-%: carbon, 2.05-2.65; silicon, up to 2.0; manganese, up to 2.0; chromium, 6.10-9.80; tungsten, 0.50- 2.40; molybdenum, 2.15-4.70; vanadium, 7.0-5-9.0; niobium, 0.25-2.45; cobalt, up to 10.0; sulfur, up to 0.3; nitrogen, 0.04-0.22; nickel, up to 1.50; accompanying elements, up to 2.6; iron and technological admixtures being the remainder. Content of oxygen is lesser than 100 part per million. Proposed method includes preliminary refining of steel melt, spraying with nitrogen at degree of 99.999%, placing the powder in capsule and sealing this capsule, hot iso-static molding of powder followed by hot deformation. EFFECT: enhanced bending strength; enhanced wear resistance. 4 cl, 6 dwg, 2 tbl

The automobile component made of laminating three layers clad steel plate

本发明涉及一种汽车部件(1)，该汽车部件通过对可硬化钢合金金属板坯进行热成型压淬制成，其特征在于，该汽车部件由三层层压复合钢板构成，并且中间层(3)由可硬化的钢合金构成，而外层(4、5)由不锈钢合金，特别是精炼不锈钢合金构成。

Steel alloy and component comprising such a steel alloy

22 ABSTRACTA carburisable steel alloy suitable for bearing componentscomprising, in percent by weight:C 0.05-O.5 wt.%Cr 2.5-5.0 wt.%,Mo 4-6 wt.%,W 2-4.5 wt.%,V 1-3 wt.%,Ni 2-4 wt.%,Co 2-8 wt.%,optionally one or more of the following elements:Nb O-2 wt.%N O-O.5 wt.%Si O-O.7 wt.%,Mn O-O.7 wt.%,Al O-O.15 wt.%, wherein the combined amount of Nb+V is within the range 1-3.5wt.%, the combined amount of C+N is within the range 0.05-O.5wt.%, the balance being Fe and unavoidable impurities.

Class of ductile iron, and process of forming same

A new class of ductile iron is formed by the hot isostatic pressing of a ductile iron casting, followed by austempering of the ductile iron casting. Hot isostatic pressing can be carried out at a pressure in the range of 10,000 to 17,000 psi at a temperature above 1600° F., and usually in the range of 1850° F. to 2050° F. Austempering of the material is carried out by heating to the austenitizing temperature (about 1500° F. to 1800° F.), maintaining the austenitizing temperature for a suitable time period, and rapidly cooling to an austempering temperature (about 400° F. to 750° F.) to form ausferrite within the sample.

Metallic diffusion process and improved article produced thereby

A uniquely surface-modified metallic part (3) is provided by the utilization of microwave energy to promote diffusion of desired metals into the surface of the formed metallic part (3).

Metal diffusion method and improved article produced thereby

成形金属部品（３）の表面への所望の金属の拡散を促進するための、マイクロ波エネルギーの利用によって、独自に表面修飾された金属部品（３）が提供される。

Press mold device and manufacturing method of press hardening member

본 발명은 프레스 경화용 부품을 생산하는 강판 블랭크의 프레스 공정중 표면 산화막을 제거하도록 그 구조가 개선된 프레스 경화용 금형장치에 관한 것이다. 그 구성은, 강판 블랭크를 상,하부에서 프레스 가공하며 내부에 냉각수 공급부가 배치되는 상,하부 금형으로 구성된 프레스 경화용 금형과, 상,하부 금형의 내부에 배치되며 외부로부터 공급되는 에어를 강판 블랭크의 표면측으로 유도하여 산화막을 제거하기 위한 에어 송풍수단으로 구성된 것이다. 이에 따르면 본 발명은 상,하부 금형의 프레스 성형 직전에 고압의 에어를 강판 블랭크의 표면에 분사시켜 표면에 발생되는 산화막을 제거함으로써, 후처리 공정인 산화막 제거공정을 생략할 수 있으므로, 생산성이 향상되고 부품의 표면 품질을 향상시킬 수 있는 유용한 효과를 갖는다.

Atmosphere control during continuous heat treatment of metal strips

본 발명은 스트립을 챔버내의 가열구역과 냉각구역에 통과시키는 단계, 질소와 제1 보호가스 분위기보다 더 많은 제2수소를 포함하는 조정된 제2 보호가스가 있는 냉각구역을 제외한 챔버내에 질소와 제1수소를 포함하는 제1 보호가스 분위기를 형성하는 단계, 질소를 챔버내로 도입시키는 단계, 상기 냉각구역으로 제2 보호가스 분위기보다 더 많은 제3수소를 함유하고 있는 보호가스를 주입시키는 단계, 상기 제1 보호가스 분위기를 가지고 있는 챔버의 한 구역과 상기 냉각구역 사이의 가스 교환을 형성하는 단계 그리고 상기 질소의 도입 유량과 상기 보호가스의 주입 유량을 조절하는 단계를 포함하는 금속 스트립을 열처리를 하는 방법에 관한 것이다.

Thermoelectric conversion material

There is provided a thermoelectric conversion material made of a full-Heusler alloy and capable of enhancing figure of merit. In order to solve the above problem, the thermoelectric conversion material is made of the full-Heusler alloy represented by the following composition formula: (Fe 1-x M1 x ) 2+à (Ti 1-y M2 y ) 1+Õ (A 1-z M3 z ) 1+É . A composition in a ternary phase diagram of Fe-Ti-A is inside a hexagon having points (50,37,13), (45,30,25), (39.5,25,35.5), (50,14,36), (54,21,25), and (55.5,25,19.5) as apexes. Further, an amount of change ”VEC of an average valence electron number per atom VEC in the case of x = y = z = 0 satisfies a relation 0<|”VEC|‰¤0.2 or 0.2<|”VEC|‰¤0.3.

PROCESS FOR COOLING A DEVICE FOR ISOSTATIC HOT PRESSING AND A DEVICE FOR ISOSTATIC HOT PRESSING