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1.发明授权公开(公告)号：US10969010B2
公开(公告)日：2021-04-06
申请号：US15906941
申请日：2018-02-27
发明人： Min Gyun Chung
摘要： Provided herein is a coating method for a vehicle shift fork and the methods includes: preparing a Fe—Cr—Mo-based composition such as a powder; pretreating the shift fork by washing a pad part of the shift fork to remove impurities; forming a coating layer on the pad part using the Fe—Cr—Mo-based powder by high velocity oxygen fuel spraying (HVOF) method; and cooling the coating layer at a rate of about 106 to about 108 K/s to form an amorphous coating layer. Further provided are an amorphous coating formed by high velocity oxygen fuel spraying (HVOF) method and a shift fork including the amorphous coating.
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公开(公告)号：US20200173507A1
公开(公告)日：2020-06-04
申请号：US16784033
申请日：2020-02-06
发明人： Yoon Cheol Kim , Jai Min Han , Yoon Joo Rhee , Min Gyun Chung , Byung Chan Lee , Jae Young Lee
摘要： A method of manufacturing a brake disc of heterogeneous materials, may include a disc device and a hub device formed in a cast-bonding manner using different materials, includes performing a first casting for casting the disc device using a grey cast-iron material, performing a preparation step by placing the disc device in a casting mold as an insert, performing a second casting for preparing a brake disc cast product by injecting molten aluminum alloy into the casting mold and casting the hub device to be cast-bonded to the disc device, and performing an oxynitriding process for forming an oxynitride layer by smoothing a surface of the brake disc cast product and performing heat treatment in a gaseous atmosphere at a temperature ranging from 425 to 500° C.
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公开(公告)号：US20180142745A1
公开(公告)日：2018-05-24
申请号：US15796378
申请日：2017-10-27
发明人： Min Gyun Chung , Jai Min Han , Yoon Cheol Kim , Byung Chan Lee , Yoon Joo Rhee , Jae Young Lee , In Seop Kim , Jeong Ho Shin
IPC分类号： F16D65/12
CPC分类号： F16D65/123 , F16D65/125 , F16D2065/1316 , F16D2065/1344 , F16D2065/1376 , F16D2200/0013 , F16D2250/0015 , F16D2250/003
摘要： A solid type brake disc includes a hat part that includes a circular body that is fitted on a rotary shaft of a wheel and a plurality of hollow protrusions that are formed around the outer surface of the body and each have an internal space. The solid type brake disc also includes a friction part that includes a ring body that has a center hole and receives the hat part in the center hole and projections that protrude toward the hollow protrusions and are inserted in the internal spaces to be covered with the hollow protrusions.
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公开(公告)号：US09970542B2
公开(公告)日：2018-05-15
申请号：US14557501
申请日：2014-12-02
发明人： Min Gyun Chung , Jeong Uk An
CPC分类号： F16H63/32 , B05B7/00 , B32B15/01 , C23C4/06 , F16H2063/327
摘要： A shift fork having an improved abrasion resistance includes two or more coating layers in which a molybdenum (Mo) sprayed coating layer and a copper (Cu) sprayed coating layer are alternately formed on a surface of a pad.
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公开(公告)号：US20160369857A1
公开(公告)日：2016-12-22
申请号：US14932694
申请日：2015-11-04
发明人： Min Gyun Chung , Yoon Cheol Kim
CPC分类号： F16D65/127 , C22C21/02 , C22C38/04 , C23C4/06 , C23C4/129 , C23C4/18 , F16D65/123 , F16D2065/1344
摘要： A drum in hat brake disc that includes a main braking part and a hat part coupled to the main braking part with a sprayed coating layer formed on a frictional surface of therein. And a manufacturing method includes the steps of casting a main braking part and seating the main braking part in a mold and injecting an aluminum alloy melt into the mold to form a hat part. The method also includes the steps of cooling the main braking part and the hat part and separating the mold to manufacture the drum in hat brake disk. The method includes polishing a surface of an inner diameter part of the hat part and performing a short blast process of the surface using alumina. The method also includes forming a sprayed coating layer on the inner diameter part subjected to the short blast process.
摘要翻译： 一种帽子制动盘，其包括主制动部分和与主制动部分联接的帽部分，其上形成有在其上的摩擦表面上的喷涂层。 并且制造方法包括以下步骤：铸造主制动部件并将主制动部件放置在模具中，并将铝合金熔体注入模具中以形成帽部。 该方法还包括冷却主制动部件和帽部件并分离模具以制造帽制动盘中的滚筒的步骤。 该方法包括：研磨帽子部分的内径部分的表面，并使用氧化铝进行表面的短喷射处理。 该方法还包括在经受短冲击处理的内径部分上形成喷涂层。
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公开(公告)号：US20210190158A1
公开(公告)日：2021-06-24
申请号：US17184090
申请日：2021-02-24
发明人： Min Gyun Chung , Jai Min Han , Yoon Joo Rhee , Byung Chan Lee , Jae Young Lee , Yoon Cheol Kim
摘要： Disclosed are a brake disk and a method for manufacturing the same. In particular, the brake disk may include a friction surface formed of cast iron, and the friction surface of the brake disk is divided into a plurality of sections in a circumferential direction. Preferably, an average of the numbers per unit area of eutectic cells formed on surfaces of the sections may not be greater than 300 ea/cm2.
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公开(公告)号：US10655687B2
公开(公告)日：2020-05-19
申请号：US16191675
申请日：2018-11-15
发明人： Yoon Cheol Kim , Jai Min Han , Min Gyun Chung , Jae Young Lee , Byung Chan Lee , Yoon Joo Rhee , Sung Jin Hong , Eun Pa Cho , Chi Deuk Ahn
摘要： This invention relates to a paper friction material and a method of manufacturing the same, wherein the paper friction material is configured such that dispersibility and bondability are increased between a filler and a matrix. The paper friction material which is suitable for use in a vehicle, includes a friction base including pulp and a coating layer formed on the friction base using a mixture of latex and a functional material. The OH reactive group of the pulp and the aromatic ring of the latex are hydrogen-bonded so that the friction base and the coating layer are coupled with each other.
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公开(公告)号：US20190177827A1
公开(公告)日：2019-06-13
申请号：US15978649
申请日：2018-05-14
发明人： Ill Joo Lee , Chul Ho Kim , Min Gyun Chung , Yong Sang Joo , Jae Young Lee
摘要： A coating method for a friction part according to the present disclosure includes the steps of: fabricating a wire comprising, by weight, 0.1% to 1.0% of La2O3 and a balance of Mo; and applying, by flame spraying, the fabricated wire to a surface of the friction part, whereby the friction part has improved wear resistance.
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公开(公告)号：US20160061321A1
公开(公告)日：2016-03-03
申请号：US14557501
申请日：2014-12-02
发明人： Min Gyun Chung , Jeong Uk An
CPC分类号： F16H63/32 , B05B7/00 , B32B15/01 , C23C4/06 , F16H2063/327
摘要： A shift fork having an improved abrasion resistance includes two or more coating layers in which a molybdenum (Mo) sprayed coating layer and a copper (Cu) sprayed coating layer are alternately formed on a surface of a pad.
摘要翻译： 具有改善的耐磨性的换挡叉包括两个或更多个涂覆层，其中钼（Mo）喷涂涂层和铜（Cu）喷涂涂层交替地形成在垫的表面上。
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公开(公告)号：US11193194B2
公开(公告)日：2021-12-07
申请号：US15978649
申请日：2018-05-14
发明人： Ill Joo Lee , Chul Ho Kim , Min Gyun Chung , Yong Sang Joo , Jae Young Lee
IPC分类号： C22C38/00 , C22C38/02 , C22C38/40 , C23C4/11 , C23C4/129 , C22C38/60 , C22C38/18 , C22C38/08 , C22C38/04
摘要： A coating method for a friction part according to the present disclosure includes the steps of: fabricating a wire comprising, by weight, 0.1% to 1.0% of La2O3 and a balance of Mo; and applying, by flame spraying, the fabricated wire to a surface of the friction part, whereby the friction part has improved wear resistance.
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