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1. 发明授权

US06379479B1 Steel member surface treatment method 有权
标题翻译：钢构件表面处理方法
公开(公告)号：US06379479B1
公开(公告)日：2002-04-30
申请号：US09612282
申请日：2000-07-07
申请人： Kouji Ohbayashi , Michio Maruki , Takao Taniguchi , Yoshimi Watanabe
发明人： Kouji Ohbayashi , Michio Maruki , Takao Taniguchi , Yoshimi Watanabe
IPC分类号： C21D109
CPC分类号： C21D1/09 , C21D2211/008
摘要： In a steel member surface treatment method, only a surface layer portion of the steel member is heated to its melting point or higher to form a melt, by high density energy-beam irradiation. Subsequently, the melted portion is rapidly cooled to a martensitic transformation region, to form a martensitic structure. The temperature increasing rate in irradiation of the surface layer of the steel member is preferably 7500° C./second or greater. Thereby, thermal strain and quenching failure are reduced even if the steel member is a thin plate component and a high production efficiency can be achieved.
摘要翻译：在钢构件表面处理方法中，通过高密度能量束照射，仅将钢构件的表层部分加热至其熔点或更高以形成熔体。随后，将熔融部分迅速冷却至马氏体转变区，形成马氏体组织。钢构件的表层的照射时的升温速度优选为7500℃/秒以上。因此，即使钢构件是薄板构件并且可以实现高生产效率，热应变和淬火失效也降低。

2. 发明授权

US5961751A Surface processing method for a steel member and surface processed steel member 失效
标题翻译：钢构件和表面处理钢构件的表面处理方法
公开(公告)号：US5961751A
公开(公告)日：1999-10-05
申请号：US632805
申请日：1996-04-17
申请人： Michio Maruki , Takao Taniguchi , Kouji Ohbayashi , Yoshimi Watanabe , Naohisa Momiyama
发明人： Michio Maruki , Takao Taniguchi , Kouji Ohbayashi , Yoshimi Watanabe , Naohisa Momiyama
IPC分类号： F16H45/02 , C21D1/09 , C21D9/00
CPC分类号： C21D9/0068 , C21D1/09 , F16H2045/0294 , F16H45/02
摘要： A surface hardening method, in which a surface layer on a thin steel plate member is stably melted and solidified to provide a high surface resistance against wear includes irradiation with a high density energy beam to melt a process surface portion of the steel member followed by rapid cooling. The melted surface portion includes a fully melted layer and an adjacent imperfectly or partially melted layer. At least the cooling to solidify the molten steel is performed in a short time period less than an austenitic transformation completion time at temperatures below melting, e.g., one-twentieth of the normal austenitic transformation time, and preferably both heating to melt the surface layer and cooling to solidify and harden the surface layer are performed in a time period less than the normal austenitic transformation completion time period. The high density energy beam can be divided to irradiate plural regions to melt the surfaces of the plural regions at the same time. The thermal capacity (or thickness) of the entire steel member can be designed to be as small as four times the thermal capacity of the process portion (or depth of melted portion) and still allow self cooling of the steel member to produce surface hardening. Additionally the melted-hardened surface has improved smoothness such as exhibited by a roughness which is only sixty percent or less of the roughness of non-processed surfaces.
摘要翻译：一种表面硬化方法，其中薄钢板构件上的表面层稳定地熔融和固化以提供高耐磨性表面，包括用高密度能量束照射以熔化钢构件的工艺表面部分，然后快速冷却。熔融的表面部分包括完全熔化的层和相邻的不完全或部分熔融的层。在低于熔融温度的温度下，例如在正常的奥氏体相变时间的二十分之内，至少在短时间内进行低于奥氏体相变完成时间的冷却，优选两者加热以熔化表面层，在小于正常奥氏体转变完成时间段的时间内进行冷却固化和硬化表面层。高密度能量束可以被分割以照射多个区域以同时熔化多个区域的表面。整个钢构件的热容量（或厚度）可以设计成小到加工部分的热容量的四倍（或熔化部分的深度），并且仍然允许钢构件的自冷却以产生表面硬化。此外，熔融硬化表面具有改善的平滑度，例如粗糙度显示的仅为非处理表面粗糙度的百分之六十或更少。

3. 发明授权

US5788034A Lockup clutch for a torque converter and method of thermally treating a lockup clutch piston 失效
标题翻译：用于变矩器的锁止离合器和用于热处理锁止离合器活塞的方法
公开(公告)号：US5788034A
公开(公告)日：1998-08-04
申请号：US632804
申请日：1996-04-17
申请人： Michio Maruki , Takao Taniguchi , Masataka Shimazaki , Fumitomo Yokoyama , Hideji Kato , Kouji Ohbayashi , Yoshimi Watanabe , Naohisa Momiyama , Masayoshi Imakire
发明人： Michio Maruki , Takao Taniguchi , Masataka Shimazaki , Fumitomo Yokoyama , Hideji Kato , Kouji Ohbayashi , Yoshimi Watanabe , Naohisa Momiyama , Masayoshi Imakire
IPC分类号： F16F15/12 , C21D9/00 , F16F15/10 , F16F15/123 , F16F15/134 , F16H45/02 , C21D1/06
CPC分类号： F16H45/02 , F16H2045/0294
摘要： A lockup clutch for torque converter which prevents engaging and disengaging shock when a transmission torque suddenly changes, includes a lockup clutch assembly, a lockup clutch piston operating the lockup clutch assembly, and a damper device disposed between the lockup clutch piston and an output member for absorbing changes of transmission torque occurring in association with the operation of the lockup clutch assembly. The lockup clutch piston is made of steel and has a thermally treated portion placed at a surface in contact with springs of the damper device wherein the thermally treated portion is hardened by rapid local melting with high density energy radiation such as electron beam followed by rapid cooling.
摘要翻译：一种用于变矩器的锁止离合器，其防止当传动扭矩突然变化时接合和分离冲击，包括锁止离合器组件，操作锁止离合器组件的锁止离合器活塞以及设置在锁止离合器活塞和输出构件之间的阻尼装置，吸收与锁止离合器组件的操作相关联的传递扭矩的变化。锁止离合器活塞由钢制成，并且具有放置在与阻尼器装置的弹簧接触的表面处的热处理部分，其中热处理部分通过快速局部熔化而固化，以高密度能量辐射如电子束随后快速冷却。

4. 发明授权

US5934126A Internally toothed member and method and apparatus for forming the same 失效
标题翻译：内齿构件及其形成方法和装置
公开(公告)号：US5934126A
公开(公告)日：1999-08-10
申请号：US982414
申请日：1997-12-02
申请人： Michio Maruki , Osamu Fukukawa , Hideyuki Nagai , Noah Utsumi , Mitsuhiko Ando , Naoji Kato
发明人： Michio Maruki , Osamu Fukukawa , Hideyuki Nagai , Noah Utsumi , Mitsuhiko Ando , Naoji Kato
IPC分类号： F16D13/60 , B21D53/28 , B21H5/00 , B21H7/18 , B21K1/30 , F16D13/52 , F16D25/0638 , B21H5/02
CPC分类号： F16D13/52 , B21H7/187 , B21K1/30 , F16D25/0638 , B21H7/182 , Y10T29/49471
摘要： An internally toothed member is shown suitable for use as a clutch drum in an automatic transmission. The internally toothed member has the shape of a cup with an open end and a central axis. The cup-shaped member has first internal teeth extending in the axial direction and second internal teeth extending further toward the open end of the member than the first internal teeth. The internal teeth are each formed on an inner circumferential surface of the cup-shaped member in each of a plurality of locations spaced in the circumferential direction. Also, a groove for receiving a snap ring is formed in the second internal teeth closer to the open end than end faces of the first internal teeth facing the open end. Because the first and second internal teeth are formed projecting radially inward, they do not lower the rigidity of the internally toothed member. Also, because it is not necessary to fix a cylindrical member to the outside of the internally toothed member for reinforcement, working man-hours can be reduced and it is possible to lower the cost of the internally toothed member.
摘要翻译：显示出适合用作自动变速器中的离合器鼓的内齿构件。内齿构件具有开口端和中心轴的杯形。杯状构件具有沿轴向延伸的第一内齿，并且第二内齿比第一内齿更向前延伸到构件的开口端。内齿分别形成在圆周方向间隔开的多个位置的杯状部件的内周面上。此外，在第二内齿形成比接近开口端的第一内齿的端面更靠近开口端的用于容纳卡环的槽。由于第一内齿和第二内齿形成为径向向内突出，所以它们不会降低内齿构件的刚性。此外，由于不需要将圆筒形构件固定到用于加强的内齿构件的外侧，所以可以减少工作时间，并且可以降低内齿构件的成本。

5. 发明授权

US5840136A Temperature-raising bainite forming process 失效
标题翻译：升温贝氏体形成过程
公开(公告)号：US5840136A
公开(公告)日：1998-11-24
申请号：US811147
申请日：1997-03-04
申请人： Michio Maruki , Kouji Ohbayashi , Takatoshi Suzuki
发明人： Michio Maruki , Kouji Ohbayashi , Takatoshi Suzuki
IPC分类号： C21D6/00 , C21D1/09 , C21D1/18 , C21D1/19 , C21D1/20 , C21D1/34 , C21D1/38 , C21D1/42 , C21D5/00 , C21D9/02 , C21D9/00
CPC分类号： C21D1/19 , C21D1/09 , C21D9/02 , C21D1/20 , C21D2211/00 , C21D2211/002
摘要： A bainite forming process for treating a steel material reduces the time required for a complete thermal treatment as well as the cycle time for the thermal treatment device without necessitating any special means for handling the steel material. The steel material is heated to a temperature higher than the austenitic transformation point, and temporarily quenched to an intermediate point temperature higher than the martensitic transformation point. Then, the temperature of the steel material is again raised towards the range corresponding to bainitic transformation to form a bainitic structure. The reheating is discontinued before the temperature corresponding to the austenitic transformation point is reached, and the steel material is then quenched. In the heating steps, only the portion to be treated by the bainite forming process is locally irradiated with a high-density energy beam.
摘要翻译：用于处理钢材的贝氏体形成方法减少了完全热处理所需的时间以及热处理装置的循环时间，而不需要用于处理钢材的任何特殊装置。将钢材加热至高于奥氏体相变点的温度，并暂时淬火至高于马氏体相变点的中间点温度。然后，将钢材的温度再次升高到与贝氏体转变相对应的范围，形成贝氏体组织。在达到与奥氏体相变点相应的温度之前，再加热停止，然后钢材淬火。在加热步骤中，只有通过贝氏体形成工艺处理的部分被高密度能量束局部照射。

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