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公开(公告)号：US11376817B2
公开(公告)日：2022-07-05
申请号：US16931927
申请日：2020-07-17
Applicant: Kennametal Inc.
Inventor： Martin G. Perez , Michael J. Meyer , Qingjun Zheng
IPC: B32B15/01 , B32B15/18 , C22C29/08 , B32B18/00 , B32B7/05 , C22C38/08 , B32B7/027 , C22C19/03 , C22C1/04 , B32B15/16 , C22C19/07 , C22C38/10
Abstract: Wear resistant articles are described herein which, in some embodiments, mitigate CTE differences between wear resistant components and metallic substrates. In one aspect, an article comprises a layer of sintered cemented carbide bonded to a layer of iron-based alloy via a metal-matrix composite bonding layer, wherein coefficients of thermal expansion (CTE) of the sintered cemented carbide layer, metal matrix composite bonding layer, and iron-based alloy layer satisfy the relation: x = ( C T E WC - C T E M M C ) ( C T E M M C - C T E Fe ) wherein 0.5≤x≤2 and CTE WC, CTE MMC and CTE Fe are the CTE values for the sintered cemented carbide, metal matrix composite, and iron-based alloy in 1/K respectively at 900° C. to 1100° C.
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公开(公告)号：US10967466B2
公开(公告)日：2021-04-06
申请号：US15492413
申请日：2017-04-20
Applicant: Kennametal Inc.
Inventor： Qingjun Zheng , Michael Meyer , Martin G. Perez , Abdelhakim Belhadjhamida
IPC: C22C19/05 , B23P6/04 , B23K1/00 , B23K35/02 , B23K35/30 , B23K101/00 , B23K103/08
Abstract: Methods of superalloy article repair are provided. In some embodiments, a method for repairing a nickel-based superalloy article comprises providing a layered assembly over a damaged region of the nickel-based superalloy article, the layered assembly comprising a nickel-based superalloy preform, an infiltration alloy preform and a melting point depressant component. The layered assembly is heated to form a nickel-based filler alloy metallurgically bonded to the damaged region, wherein primary carbide and secondary carbide phases are present in the nickel-based filler alloy in a combined amount of 0.5 to 10 vol. %.
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公开(公告)号：US20140345423A1
公开(公告)日：2014-11-27
申请号：US14458918
申请日：2014-08-13
Applicant: Kennametal Inc.
Inventor： Terry W. Kirk , Hongbo Tian , Xin Deng , Debangshu Banerjee , Qingjun Zheng
CPC classification number: C22C29/10 , B22F2998/00 , B22F2998/10 , C22C29/06 , C22C29/067 , C22C29/08 , B22F3/02 , B22F9/04 , B22F3/10 , B22F2304/15
Abstract: Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength.
Abstract translation: 通过压制，粉碎，成型和烧结的步骤制造包含相对少量金属粘合剂的硬质合金丸。 碳化物颗粒可以用作耐磨硬面材料，其应用于各种类型的工具。 碳化物颗粒提供改善的机械性能，例如硬度和磨损性，同时保持所需的韧性和强度水平。
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公开(公告)号：US20250065348A1
公开(公告)日：2025-02-27
申请号：US18943396
申请日：2024-11-11
Applicant: Kennametal Inc.
Inventor： Andrew Ruminski , Qingjun Zheng , Jacob Poremski , Jerry Dean
Abstract: A multi-component electro-mechanical flame spray deposition system is disclosed having a first electro-mechanical feeder and a second electro-mechanical feeder, each in communication with a mixing hopper, and wherein the mixing hopper is in communication with a powder nozzle having an orifice, and a combustion torch having an orifice, wherein the orifice of the powder nozzle is in juxtaposition to the orifice of the combustion torch. A method of using the multi-component electro-mechanical flame spray deposition system is provided for depositing substrates on or to articles of manufacture.
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公开(公告)号：US20240246100A1
公开(公告)日：2024-07-25
申请号：US18158243
申请日：2023-01-23
Applicant: Kennametal Inc.
Inventor： Andrew Ruminski , Qingjun Zheng , Jacob Poremski , Jerry Dean
CPC classification number: B05B7/206 , B05B7/1463 , B05B7/1486
Abstract: A multi-component electro-mechanical flame spray deposition system is disclosed having a first electro-mechanical feeder and a second electro-mechanical feeder, each in communication with a mixing hopper, and wherein the mixing hopper is in communication with a powder nozzle having an orifice, and a combustion torch having an orifice, wherein the orifice of the powder nozzle is in juxtaposition to the orifice of the combustion torch. A method of using the multi-component electro-mechanical flame spray deposition system is provided for depositing substrates on or to articles of manufacture.
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Patent Agency Ranking
公开(公告)号：US11000921B2
公开(公告)日：2021-05-11
申请号：US16396123
申请日：2019-04-26
Applicant: Kennametal Inc.
Inventor： Qingjun Zheng , Robert J. Vasinko
Abstract: Welding rods and associated cladded articles are described herein. Briefly, a welding rod comprises a hard particle component dispersed in a nickel-based alloy matrix or cobalt-based alloy matrix, the hard particle component comprising tungsten carbide particles having an average size of less than 45 μm, and the nickel-based alloy matrix or the cobalt-based alloy matrix comprising at least one metal carbide forming element.
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公开(公告)号：US09499888B2
公开(公告)日：2016-11-22
申请号：US14458918
申请日：2014-08-13
Applicant: Kennametal Inc.
Inventor： Terry W. Kirk , Hongbo Tian , Xin Deng , Debangshu Banerjee , Qingjun Zheng
CPC classification number: C22C29/10 , B22F2998/00 , B22F2998/10 , C22C29/06 , C22C29/067 , C22C29/08 , B22F3/02 , B22F9/04 , B22F3/10 , B22F2304/15
Abstract: Carbide pellets including relatively small amounts of metallic binder are produced by steps of pressing, comminuting, shaping and sintering. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength.
Abstract translation: 通过压制，粉碎，成型和烧结的步骤制造包含相对少量金属粘合剂的硬质合金丸。 碳化物颗粒可以用作耐磨硬面材料，其应用于各种类型的工具。 碳化物颗粒提供改善的机械性能，例如硬度和磨损性，同时保持所需的韧性和强度水平。
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公开(公告)号：US09346101B2
公开(公告)日：2016-05-24
申请号：US13833411
申请日：2013-03-15
Applicant: Kennametal Inc.
Inventor： Qingjun Zheng , Yixiong Liu , James A Faust , Danie J De Wet , Sudharsan Subbaiyan , Piyamanee Komolwit , Mark J Rowe
CPC classification number: B22F7/04 , B22F3/10 , B22F7/008 , B22F7/062 , B22F7/08 , B32B15/011 , B32B15/015 , C22C1/0433 , C22C19/002 , C22C19/005 , C22C19/03 , C22C19/055 , C22C19/056 , C22C19/057 , C22C19/058 , C22C38/04 , C22C38/22 , C22C38/36 , C22C38/38
Abstract: In one aspect, methods of making cladded articles are described herein. A method of making a cladded article, in some embodiments, comprises disposing over a surface of a metallic substrate a sheet comprising organic binder and powder metal or powder alloy having a solidus temperature at least 100° C. less than the metallic substrate and heating the powder metal or powder alloy to provide a sintered metal or sintered alloy cladding metallurgically bonded to the metallic substrate.
Abstract translation: 在一个方面，本文描述了制作包覆制品的方法。 在一些实施方案中，制造包覆制品的方法包括在金属基材的表面上设置包含有机粘合剂和粉末金属或粉末合金的片材，该片材具有比金属基底小至少100℃的固相线温度，并加热 粉末金属或粉末合金，以提供冶金结合到金属基底上的烧结金属或烧结合金包层。
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公开(公告)号：US11247268B2
公开(公告)日：2022-02-15
申请号：US16783564
申请日：2020-02-06
Applicant: Kennametal Inc.
Inventor： Qingjun Zheng , Yixiong Liu , James A. Faust , Mark J. Rowe , Danie J. De Wet , Sudharsan Subbaiyan , Michael J. Meyer
IPC: B22F7/00 , B22D23/06 , B23K35/30 , B23K35/02 , B22F5/10 , C22C1/10 , C22C29/02 , C22C32/00 , B22F3/10 , C22C9/01 , C22C9/06 , C22C9/10 , C22C14/00 , C22C19/05 , C22C19/07 , C22C38/22 , C22C38/36 , C22C38/38 , B22F7/06
Abstract: In one aspect, methods of making freestanding metal matrix composite articles and alloy articles are described. A method of making a freestanding composite article described herein comprises disposing over a surface of the temporary substrate a layered assembly comprising a layer of infiltration metal or alloy and a hard particle layer formed of a flexible sheet comprising organic binder and the hard particles. The layered assembly is heated to infiltrate the hard particle layer with metal or alloy providing a metal matrix composite, and the metal matrix composite is separated from the temporary substrate. Further, a method of making a freestanding alloy article described herein comprises disposing over the surface of a temporary substrate a flexible sheet comprising organic binder and powder alloy and heating the sheet to provide a sintered alloy article. The sintered alloy article is then separated from the temporary substrate.
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10.发明申请公开(公告)号：US20160245099A1
公开(公告)日：2016-08-25
申请号：US14628912
申请日：2015-02-23
Applicant: KENNAMETAL INC.
Inventor： Joel T. Dawson , Danie DeWet , Qingjun Zheng
CPC classification number: F01D5/288 , B22F5/04 , B22F7/06 , B22F2998/10 , B23K35/00 , B23K35/3046 , C23C24/08 , F01D5/005 , F01D11/12 , F05D2230/22 , F05D2230/31 , F05D2300/175 , F05D2300/5023 , B22F1/0059 , B22F3/18 , B22F3/10
Abstract: A method of imparting wear-resistance to a contact face of a turbine blade Z-notch comprising applying a flexible cladding sheet comprising a Co-based cladding alloy and an organic binder to the contact face of the Z-notch, heating the turbine blade Z-notch with flexible cladding sheet thereon to volatilize the organic binder and remove it from the cladding sheet, and further heating the turbine blade Z-notch with flexible cladding sheet thereon to sinter the cladding sheet by liquid phase sintering, thereby cladding the cladding sheet to the contact face to produce a wear-resistant layer thereon.
Abstract translation: 一种赋予涡轮叶片Z形切口的接触面的耐磨性的方法，包括将包含Co基包层合金和有机粘合剂的柔性包层片施加到Z形切口的接触面，加热涡轮叶片Z - 在其上具有柔性包覆片，使有机粘合剂挥发并将其从包覆片上除去，并且用柔性包覆片进一步加热涡轮叶片Z形切口，通过液相烧结烧结包覆片，从而将包覆片包覆 接触面以在其上产生耐磨层。
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