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101. 发明授权

US5336338A Bearing components and process for producing same 失效
标题翻译：轴承部件及其制造方法
公开(公告)号：US5336338A
公开(公告)日：1994-08-09
申请号：US983448
申请日：1992-12-02
申请人： Kazutoshi Toda
发明人： Kazutoshi Toda
IPC分类号： C21D1/18 , C21D1/78 , C21D6/04 , C21D9/40 , C22C38/00 , C23C8/22 , C23C8/80 , F16C33/12 , F16C33/30 , F16C33/34 , F16C33/62 , C21D1/06
CPC分类号： F16C33/64 , C21D1/78 , C21D6/04 , C21D9/40 , C23C8/80 , F16C33/30 , Y10S148/906
摘要： A bearing component is prepared from a carburazing steel and having a surface hardness of 63 to 67 in terms of Rockwell hardness C and a surface retained austenite content of at least 20% to less than 25%. The bearing component is produced by a process including the step of carburizing and quenching a bearing component workpiece prepared from a carburizing steel and machined to a predetermined shape, the step of subjecting the resulting workpiece to a preliminary tempering treatment, the step of subjecting the tempered workpiece to a sub-zero treatment and the step of subjecting the treated workpiece to a main tempering treatment. Further, the bearing component is produced by another process including the step of carburizing and quenching a bearing component workpiece prepared from a carburizing steel and machined to a predetermined shape, the step of subjecting the resulting workpiece to a secondary hardening treatment and the step of subjecting the hardened workpiece to a main tempering treatment.
摘要翻译：轴承部件由碳化钢制成，表面硬度为洛氏硬度C为63〜67，表面残留奥氏体含量为20％以上且小于25％。所述轴承部件通过以下工序来制造，该方法包括对由渗碳钢制成的加工成预定形状的轴承部件工件进行渗碳淬火的工序，对所得到的工件进行预备回火处理的工序，工件进行次零处理以及对经处理的工件进行主回火处理的步骤。此外，轴承部件通过包括以下步骤制造的方法，该方法包括渗碳淬火由渗碳钢制成并被加工成预定形状的轴承部件工件，对所得到的工件进行二次硬化处理的步骤和硬化工件进行主回火处理。

102. 发明授权

US5259200A Process for the cryogenic treatment of metal containing materials 失效
标题翻译：含金属材料的低温处理工艺
公开(公告)号：US5259200A
公开(公告)日：1993-11-09
申请号：US753162
申请日：1991-08-30
申请人： Dennis J. Kamody
发明人： Dennis J. Kamody
IPC分类号： C21D1/00 , C21D1/30 , C21D1/613 , C21D6/04 , F25D13/06 , C21D9/18
CPC分类号： C21D1/00 , C21D6/04 , C21D1/30 , C21D1/613 , Y10S148/905
摘要： A process for treating an article of metal containing material such as tool steel so as to improve the properties such as shockability, wearability, stability and hardness of the article. In one embodiment, the process comprises immersing the article at ambient temperature into liquid cryogenic material for a time period up to or equal to a set time period equal to the minimum cross-sectional dimension in inches times ten minutes. The article is then withdrawn from contact with the liquid cryogenic material and immediately subjected to a flow of air sufficient to raise the temperature of the article to ambient temperature in a period of time equal to or less than ten minutes plus ten minutes per minimum cross-sectional dimension in inches.
摘要翻译：一种用于处理诸如工具钢的含金属材料的方法，以改善制品的冲击性，耐磨性，稳定性和硬度等性能。在一个实施方案中，该方法包括将物品在环境温度下浸入液态低温材料中一段时间，该时间段等于等于十进制十分钟的最小横截面尺寸的设定时间段。然后将制品从与液体低温材料接触中取出，并立即经受足以在物品的温度等于或小于十分钟加上每十分钟最小十分钟的时间将物品的温度升高至环境温度的空气流中。截面尺寸（英寸）。

103. 发明授权

US5183518A Cryogenically super-hardened high-chromium white cast iron and method thereof 失效
标题翻译：低温高铬白铸铁及其制备方法
公开(公告)号：US5183518A
公开(公告)日：1993-02-02
申请号：US830464
申请日：1992-02-06
申请人： Roman Radon
发明人： Roman Radon
IPC分类号： C21D5/04 , C21D6/00 , C21D6/04 , C22C37/08
CPC分类号： C22C37/08 , C21D5/04 , C21D6/04 , C21D6/002
摘要： A highly abrasion-resistant, high-chromium white cast iron alloy containing the following elemental analysis in percent by weight: 2.4-3.8% carbon, 0.4 to 2.0% manganese, 0.2 to 1.9% silicon, 0.0 to 3.0% copper, 1.5 to 4.5% nickel, 12.0 to 29.0% chromium, and the remainder iron; and super-hardened by placement in a cooling medium at a temperature of at least -55.degree. C. for a time sufficient to cause the iron alloy to have a hardness of at least about 700 HB.
摘要翻译：含有重量百分比如下元素分析的高耐磨，高铬白铸铁合金：2.4-3.8％碳，0.4-2.0％锰，0.2-1.9％硅，0.0-3.0％铜，1.5-4.5 ％镍，12.0〜29.0％铬，其余为铁; 并通过在至少-55℃的温度下放置在冷却介质中进行过硬化足以使铁合金具有至少约700BB的硬度的时间。

104. 发明授权

US5044422A Cryogenic processing of orthopedic implants 失效
标题翻译：骨科植入物的低温加工
公开(公告)号：US5044422A
公开(公告)日：1991-09-03
申请号：US590698
申请日：1990-10-01
申请人： Charles A. Lenker
发明人： Charles A. Lenker
IPC分类号： A61F2/30 , A61F2/32 , A61F2/34 , A61F2/46 , C21D1/00 , C21D6/04
CPC分类号： C21D6/04 , A61F2/32 , C21D1/00 , A61F2/3094 , A61F2002/3233 , A61F2002/3493 , A61F2002/4654 , Y10S623/923
摘要： A cryogenic method for strengthening an orthopedic implant prior to its use is disclosed. The cryogenic method for strengthening an orthopedic implant includes the steps of placing the orthopedic implant and/or the implant material in a treatment chamber which is kept at room temperature, applying the total number of temperature steps to the orthopedic implant, as a first variable, to bring the orthopedic impalant and/or the implant material in the treatment chamber to -320.degree. F. or below, applying the total number of temperature steps to the orthopedic implant, as a second variable, to bring the orthopedic implant and/or the implant material in the treatment chamber to +295.degree. F., or below, depending on material type, applying the total number of temperature steps to the orthopedic implant, as a third variable, to bring the orthopedic implant and/or the implant material in the treatment chamber to room temperature.
摘要翻译：公开了一种用于在使用之前加强整形外科植入物的低温方法。用于加强整形外科植入物的低温方法包括以下步骤：将整形外科植入物和/或植入材料放置在保持在室温下的治疗室中，将总体数量的温度步骤作为第一变量施加到整形外科植入物，将整形外科植入物和/或植入物材料在处理室中降至-320°F或更低，将总数量的温度步骤作为第二变量施加到矫形植入物，以使整形外科植入物和/或根据材料类型将处理室中的植入物材料加热到+295°F或更低，根据材料类型将总体温度步数施加到矫形植入物，作为第三变量，将矫形植入物和/或植入材料置于处理室达到室温。

105. 发明授权

US4336077A Method of cryogenically hardening an insert in an article 失效
标题翻译：在制品中低温硬化插入物的方法
公开(公告)号：US4336077A
公开(公告)日：1982-06-22
申请号：US189957
申请日：1980-03-03
申请人： J. Michael Leach , Walter L. Harvey
发明人： J. Michael Leach , Walter L. Harvey
IPC分类号： B23P15/10 , C21D6/04 , F16J9/22 , C21D1/18 , F16J1/04
CPC分类号： C21D6/04 , B23P15/10 , F16J9/22 , F05C2201/021 , F05C2251/042 , Y10T29/49256 , Y10T29/49274
摘要： A method of cryogenically hardening and expanding an insert in an article is disclosed. Particularly, gray iron piston ring insert (14) having an austenitic matrix is treated in a piston body (12) by impinging a cryogenic medium thereon. This changes the matrix microstructure of the insert to at least about 25 Vol. % martensite and desirably increases the hardness level thereof to at least about 95 on the Rockwell "B" scale in the desired regions thereof. The volume of the insert is also expanded to be more securely received in the piston body.
摘要翻译： PCT No.PCT / US80 / 00227 Sec。 371日期1980年3月3日 102（e）1980年3月3日PCT PCT 1980年3月3日PCT公布。出版物WO81 / 02586 日本1981年9月17日。公开了一种在制品中低温硬化和膨胀插入物的方法。特别地，具有奥氏体基体的灰铸铁活塞环插入件（14）通过在其上冲击低温介质在活塞体（12）中进行处理。这将插入物的基质微结构改变至至少约25 Vol。％的马氏体，并希望在其所需区域的洛氏“B”刻度上将其硬度水平提高至至少约95。插入件的体积也被扩大以更牢固地容纳在活塞体中。

106. 发明授权

US2445294A Cooling apparatus for treating cutting tools 失效
标题翻译：用于处理切削工具的冷却装置
公开(公告)号：US2445294A
公开(公告)日：1948-07-13
申请号：US58084945
申请日：1945-03-03
申请人： SUPER TREAT INC
发明人： NELSON ARTHUR L
IPC分类号： C21D1/56 , C21D1/63 , C21D6/04 , C21D9/22
CPC分类号： C21D1/63 , C21D1/56 , C21D6/04 , C21D9/22

107. 发明公开

US20240194383A1 Soft Magnetic Iron Alloy Plate, Method for Manufacturing Soft Magnetic Iron Alloy Plate, and Iron Core and Rotating Electric Machine Employing Soft Magnetic Iron Alloy Plate 审中-公开
公开(公告)号：US20240194383A1
公开(公告)日：2024-06-13
申请号：US18286240
申请日：2022-02-18
申请人： Hitachi, Ltd.
发明人： Matahiro KOMURO , Tomohiro TABATA , Shinya TAMURA , Yusuke ASARI , Shohei TERADA
IPC分类号： H01F1/20 , C21D1/18 , C21D1/76 , C21D3/08 , C21D6/00 , C21D6/04 , C21D9/46 , C22C38/00 , C22C38/10
CPC分类号： H01F1/20 , C21D1/18 , C21D1/76 , C21D3/08 , C21D6/007 , C21D6/04 , C21D9/46 , C22C38/001 , C22C38/10 , C21D2211/008 , C22C2202/02
摘要： A soft magnetic iron alloy plate having saturation magnetic flux density higher than that of an electromagnetic pure iron plate without an excessive increase in an iron loss, a method for manufacturing the soft magnetic iron alloy plate, and an iron core and a rotating electric machine using the soft magnetic iron alloy plate are provided. A soft magnetic iron alloy plate according to the present invention includes chemical composition containing 2 to 10 at. % of N, 0 to 30 at. % of Co, 0 to 1.2 at. % of V, and a remaining portion including Fe and impurities, and in a thickness direction of the soft magnetic iron alloy plate, an outer nitrogen concentration transition region where N concentration on a main surface is 1 to 4 at. % and N concentration increases toward the inner side from the main surface, a high nitrogen concentration region where maximum N concentration is higher than N concentration of the main surface and less than 11 at. %, and a variation range of N concentration is within 1 at. %, and an inner nitrogen concentration transition region where N concentration decreases toward the inner side from the high nitrogen concentration region and minimum N concentration is lower than N concentration in the high nitrogen concentration region and is 1 at. % or more.

108. 发明申请

US20220290268A1 CASE-HARDENED STEEL PART FOR USE IN AERONAUTICS 有权
公开(公告)号：US20220290268A1
公开(公告)日：2022-09-15
申请号：US17607998
申请日：2020-04-30
申请人： SAFRAN HELICOPTER ENGINES
发明人： Cyril Roger VERNAULT , Bruno PETROIX
IPC分类号： C21D9/32 , C22C38/10 , C22C38/06 , C21D6/04 , C21D6/00 , C23C8/34
摘要： The present invention relates to a steel part for use in aeronautics, comprising a substrate, the substrate comprising at least carbon, cobalt, aluminium and nickel, and having an average atomic fraction of carbon between 0.09% and 0.17%, an average atomic fraction of cobalt between 15.5% and 18.5%, an average atomic fraction of aluminium less than 0.1%, an average atomic fraction of nickel between 7.2% and 9.8%, the part being case-hardened and also comprising a nitrided layer, the nitrided layer at least partially covering the substrate and having a thickness between 5 μm to 180 μm, preferably between 50 μm and 150 μm.

109. 发明申请

US20220275989A1 Deep Cryogenic Treatment Chamber for Industrial Applications 有权
公开(公告)号：US20220275989A1
公开(公告)日：2022-09-01
申请号：US17670895
申请日：2022-02-14
申请人： Jack Cahn
发明人： Jack Cahn
IPC分类号： F25D3/10 , C21D1/613 , F25D29/00 , C21D1/78 , C21D9/22 , C21D6/04
摘要： Apparatus and method for construction of a rectangular deep cryogenic treatment chamber using an insulated, steel structure capable of large size and large volume cold thermal treatment. Apparatus includes end or top-mounted closure, liquid nitrogen delivery and distribution mechanisms, fan motors, cold diffusion-less thermal exchange, external heating element, electrical wiring and machined components. The design facilitates both low temperature, dry vapor thermal processing of metal and metal-matrix components down to −320° F. to enhance wear, corrosion, mechanical, thermal and electrical characteristics, and also post-cryogenic tempering capability to 300° F. The apparatus describes an external, LN2 storage dewar and solenoid-activated, gravity fed cryogen delivery via distribution hubs and distributed flow tubes. The apparatus also describes integrated deep cryogenic treatment authentication, test, validation and certification equipment. The process and method of treatment results in certification documents that authenticate and confirm treatment of the subject parts, reflect test and measurement of improved characteristics, retained data for archival purposes and to provide scientific evidence and proof of such treatment to a third-party not present at time of treatments, test or certification

110. 发明授权

US10851433B2 Manufacturing method of mechanical component using martensitic stainless steel, rotating device, rolling bearing and rolling bearing unit 有权
公开(公告)号：US10851433B2
公开(公告)日：2020-12-01
申请号：US16218928
申请日：2018-12-13
申请人： NSK LTD.
发明人： Chikara Matsuzawa , Takafumi Yasuhara , Hiroshi Nishizawa , Norihiro Aoki , Koji Takano , Masaru Kuge
IPC分类号： C21D6/02 , C21D9/00 , F16C33/32 , F16C33/62 , F16C33/64 , F16C19/06 , C21D9/40 , C21D1/18 , C21D6/00 , C21D6/04 , C22C38/00 , C22C38/22
摘要： A martensitic stainless steel containing, by mass %, C: 0.20% to 0.40%, N: 0.1% or less, Mo: 3% or less, and Cr: 12.0% to 16.0%, such that 0.3%≤C+N≤0.4% and a PI value (=Cr+3.3Mo+16N) is 18 or more, with the remainder being substantially Fe and unavoidable impurities is quenched from a temperature of 1,030° C. to 1,140° C. and subjected to a subzero treatment and tempering so as to obtain a prior austenite crystal grain size of a surface layer of 30 μm to 100 μm and a surface hardness of 58 HRc to 62 HRc.

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