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公开(公告)号：US11697857B2
公开(公告)日：2023-07-11
申请号：US17196303
申请日：2021-03-09
Applicant: General Electric Company
Inventor： Theodore Francis Majka
CPC classification number: C21D9/0068 , C21D1/613 , C21D6/004 , C22C38/44 , C22C38/52 , C21D2211/008
Abstract: A method of making a forged, martensitic, stainless steel alloy is provided. The alloy is a forged preform of martensitic, pitting corrosion resistant stainless steel alloy comprising, by weight: 12.0 to 16.0 percent chromium; greater than 16.0 to 20.0 percent cobalt, 6.0 to 8.0 percent molybdenum, 1.0 to 3.0 percent nickel, 0.02 to 0.04 percent carbon; and the balance iron and incidental impurities. The alloy has a microstructure that comprises a retained austenite phase less than or equal to 2 percent by volume of the microstructure. The method heats the preform to a solutionizing temperature to form a solutionized microstructure. The preform is cooled with a liquid to room temperature. The preform is immersed in a cryo-liquid to transform the retained austenite phase in the microstructure to martensite. The preform is heated to a temperature of less than 600° F. for a time sufficient to form a tempered forged preform.
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公开(公告)号：US11639537B2
公开(公告)日：2023-05-02
申请号：US17625781
申请日：2019-12-20
Applicant: JOHN COCKERILL S.A.
Inventor： Michel Dubois , Michel Boyer
Abstract: A gas blower device for blowing gas onto a surface of a traveling strip includes a plenum in the form of a hollow box for containing gas and comprising two side surfaces, a back surface and a front surface opposite to the back surface. The front surface having a profile of convex type symmetry with respect to a mid-plane perpendicular to the plane of the strip, so that a middle ridge of the front surface is located at the smallest distance from the plane of the strip. The front surface further presenting multiple tubular nozzles protruding at the front surface and having a gas outlet orifice facing in use the traveling strip. All the outlet orifices are essentially in a plane parallel to the strip plane. The gas blower device further includes a gas intake tube for feeding the plenum with gas.
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43.发明授权公开(公告)号：US11636976B2
公开(公告)日：2023-04-25
申请号：US16623191
申请日：2018-11-05
Inventor： Qingjiang Wang , Zongbo Liao , Yulin Lin , Changgeng Huang
IPC: H01F41/02 , C21D9/00 , C21D1/773 , B22F3/24 , C21D1/613 , H01F1/057 , F27B5/02 , F27B5/04 , F27B5/18 , F27B9/02 , F27D9/00 , H01L21/67 , F27B5/06
Abstract: Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25° C. and at least differs by 550° C. from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25° C. and at least differs by 300° C. from the heat treatment temperature of the heat treatment chamber; and the cooling chamber has a pressure of 50 kPa to 100 kPa. The device provided by the present invention can increase the cooling rate and production efficiency, and improve product consistency.
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公开(公告)号：US11326218B2
公开(公告)日：2022-05-10
申请号：US16324791
申请日：2017-07-31
Applicant: LINDE AKTIENGESELLSCHAFT
Inventor： Gerd Waning , Sebastian Berger
Abstract: The invention relates to a cooling device (100) for cooling at least one element (150, 151) passing through said device, comprising a metal block (115), having a first side and a second side, and comprising a cooling channel (130) for cyrogenic gas. The at least one element (150, 151) can be guided along the sides of the first side of the metal block (115), the cooling channel (130) is at least partially in heat conductive connection with the second side of the metal block (115), and the cooling channel (130) has an attachment (131) on a first end for the entry of cryogenic gas and an attachment on a second end for the exit of cryogenic gas. The invention also comprises a hardening device having such a cooling device (100) and a method for cooling at least one element (150, 151) passing through said device.
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公开(公告)号：US11198919B2
公开(公告)日：2021-12-14
申请号：US16422089
申请日：2019-05-24
Applicant: National Oilwell Vareo, L.P.
Inventor： David Martin Ellis , Luis Marcos Cadena , Christopher Alan Conrey , Daryl Stevenson
Abstract: A system for air quenching a heat treated element comprises a tubular component, an internal air quench device moveably disposed within the interior of the tubular component, and an external air quench device moveably disposed about the tubular component. The internal air quench device comprises a nozzle configured to induce an airflow within the tubular component. The external air quenching device can comprise an annular ring disposed about the tubular component that is configured to generate a cone of air about the tubular component.
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Patent Agency Ranking
公开(公告)号：US11035016B2
公开(公告)日：2021-06-15
申请号：US16393985
申请日：2019-04-25
Applicant: Consolidated Engineering Company, Inc.
Inventor： Scott P. Crafton
Abstract: A quench system for applying cooling air to one or more hot metallic components that are supported on a component support having a substantially open construction. The quench system includes a housing having sidewalls that define a cooling chamber with peripheral portions proximate the sidewalls and a center portion spaced inwardly from the sidewalls. The quench system also includes a conveyance system that is configured to carry the component support into the center portion of the cooling chamber, as well as a forced air fan that generates a bulk flow of cooling air through the cooling chamber. The quench system further includes a plurality of nozzle baffles extending inwardly from the plurality of sidewalls to define a narrowing region within the housing between the forced air fan and the conveyance system, whereby, during operation of the fan, cooling air flowing through the peripheral portions of the cooling chamber is redirected into the center portion of the cooling chamber.
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47.发明申请公开(公告)号：US20210142944A1
公开(公告)日：2021-05-13
申请号：US16623191
申请日：2018-11-05
Inventor： Qingjiang Wang , Zongbo Liao , Yulin Lin , Changgeng Huang
IPC: H01F41/02 , C21D9/00 , C21D1/773 , B22F3/24 , C21D1/613 , H01F1/057 , F27B5/02 , F27B5/04 , F27B5/18
Abstract: Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25° C. and at least differs by 550° C. from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25° C. and at least differs by 300° C. from the heat treatment temperature of the heat treatment chamber; and the cooling chamber has a pressure of 50 kPa to 100 kPa. The device provided by the present invention can increase the cooling rate and production efficiency, and improve product consistency.
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公开(公告)号：US10934603B2
公开(公告)日：2021-03-02
申请号：US15539298
申请日：2015-01-09
Applicant: ILLINOIS TOOL WORKS INC.
Inventor： Dorival Goncalves Tecco
IPC: B23K26/352 , C21D9/46 , C21D9/52 , C21D9/04 , C21D9/08 , B23K26/08 , B23K26/70 , B23K26/00 , B23K26/06 , B23K26/073 , C21D1/613
Abstract: An inline thermal treatment system for thermally treating a continuous product includes a housing comprising a first opening and second opening respectively configured to allow the continuous product to enter and to exit the housing. The system includes at least one laser coupled to a laser power source and configured to output at least one laser beam that impinges upon and heats the portion of the continuous product.
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公开(公告)号：US20200181723A1
公开(公告)日：2020-06-11
申请号：US16706616
申请日：2019-12-06
Applicant: Peter Paulin
Inventor： Peter Paulin
Abstract: A method for thermal processing bullets to yield a refined grain structure, the method includes obtaining one or more bullets, disposing the one or more bullets within a chamber having a temperature gradient between ambient temperature and cryogenic temperature, the chamber having a plurality of temperature zones, moving the one or more bullets between the plurality of temperature zones of the chamber at a predetermined rate, and returning the one or more bullets to the ambient temperature.
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公开(公告)号：US20200071781A1
公开(公告)日：2020-03-05
申请号：US16090781
申请日：2016-04-05
Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
Inventor： Hirohisa KAWAMURA
Abstract: Cooling equipment comprising: a plurality of injection units in a continuous annealing furnace including heating zone, soaking zone, and cooling zone through which strip-shaped steel sheet is sequentially fed, the injection units arranged in cooling zone in row along feed direction of steel sheet and injecting, from injection nozzles, cooling gas containing hydrogen, onto steel sheet; and hydrogen concentration adjustment unit adjusts hydrogen concentration of cooling gas such that hydrogen concentration distribution is formed in which, in a space of the cooling zone where plurality of injection units are disposed, hydrogen concentration at upstream region is higher than hydrogen concentration at downstream region; plurality of injection nozzles arranged along feed direction of steel sheet, and each of injection nozzles extending toward steel sheet; and injection nozzles positioned at both sides in array direction inclined to slope toward a center of the array direction on progression toward tips of injection nozzles.
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