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1. 发明申请

US20110023808A1 IRON-BASED SINTERED ALLOY FOR VALVE SEAT, AND VALVE SEAT FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于阀座的基于铁的烧结合金和用于内燃机的阀座
公开(公告)号：US20110023808A1
公开(公告)日：2011-02-03
申请号：US12935408
申请日：2009-03-25
申请人： Kenichi Sato , Hiroshi Oshige , Takeshi Haniu
发明人： Kenichi Sato , Hiroshi Oshige , Takeshi Haniu
IPC分类号： F01L3/00 , B32B15/02
CPC分类号： F01L3/02 , C22C1/0491 , C22C19/07 , C22C33/0285 , C22C38/44 , C22C38/52 , F01L2101/00
摘要： It is an object of the present invention to provide a valve seat product in which the amount of hard particles added to improve the wear resistance of a valve seat of an internal combustion engine is increased, and is excellent in the mechanical strength and machinability. In order to achieve the object, an iron-based sintered alloy material for a valve seat is employed which is made to contain a first hard particle having an average primary particle diameter of 5 to 20 μm and a second hard particle having an average primary particle diameter of 20 to 150 μm in a texture, wherein a particle size distribution curve measured by laser diffraction scattering analysis has N peaks (N is an integer equal to or larger than 2) and when particle diameters corresponding to the peak top positions are denoted as DT1 to DTN, a peak top particle diameter difference between neighboring DTn-1 and DTn(|DTn-1−DTn|: n is an integer equal to or larger than 2 and equal to or smaller than N) is in the range of 15 to 100 μm in at least one neighboring DTn-1 and DTn; and the total area ratio occupied by both of the first hard particle and the second hard particle constituting the mixed hard particle in the texture of the iron-based sintered alloy is 10 to 60% by area.
摘要翻译：本发明的目的是提供一种阀座产品，其中增加了用于提高内燃机的阀座的耐磨性的添加的硬质颗粒的量，并且机械强度和机械加工性优异。为了达到上述目的，使用了一种用于阀座的铁基烧结合金材料，其被制成含有平均一次粒径为5〜20μm的第一硬质粒子和具有平均一次粒子的第二硬质粒子直径为20〜150μm，其中通过激光衍射散射分析测量的粒度分布曲线具有N个峰（N是等于或大于2的整数），并且当与峰顶位置相对应的粒径被表示为 DT1〜DTN，相邻的DTn-1与DTn（| DTn-1-DTn |：n为2以上且等于或小于N的整数）之间的顶峰粒径差为15 在至少一个相邻的DTn-1和DTn中至100μm; 并且构成混合硬质粒子的第一硬质粒子和构成混合硬质粒子的第二硬质粒子的总面积比在铁基烧结合金的织构中为10〜60％。

2. 发明授权

US08733313B2 Iron-based sintered alloy for valve seat, and valve seat for internal combustion engine 有权
标题翻译：用于阀座的铁基烧结合金和用于内燃机的阀座
公开(公告)号：US08733313B2
公开(公告)日：2014-05-27
申请号：US12935408
申请日：2009-03-25
申请人： Kenichi Sato , Hiroshi Oshige , Takeshi Haniu
发明人： Kenichi Sato , Hiroshi Oshige , Takeshi Haniu
IPC分类号： F01L3/00
CPC分类号： F01L3/02 , C22C1/0491 , C22C19/07 , C22C33/0285 , C22C38/44 , C22C38/52 , F01L2101/00
摘要： It is an object of the present invention to provide a valve seat product in which the amount of hard particles added to improve the wear resistance of a valve seat of an internal combustion engine is increased, and is excellent in the mechanical strength and machinability. In order to achieve the object, an iron-based sintered alloy material for a valve seat is employed which is made to contain a first hard particle having an average primary particle diameter of 5 to 20 μm and a second hard particle having an average primary particle diameter of 20 to 150 μm in a texture, wherein a particle size distribution curve measured by laser diffraction scattering analysis has N peaks (N is an integer equal to or larger than 2) and when particle diameters corresponding to the peak top positions are denoted as DT1 to DTN, a peak top particle diameter difference between neighboring DTn-1 and DTn(|DTn-1−DTn|: n is an integer equal to or larger than 2 and equal to or smaller than N) is in the range of 15 to 100 μm in at least one neighboring DTn-1 and DTn; and the total area ratio occupied by both of the first hard particle and the second hard particle constituting the mixed hard particle in the texture of the iron-based sintered alloy is 10 to 60% by area.
摘要翻译：本发明的目的是提供一种阀座产品，其中增加了用于提高内燃机的阀座的耐磨性的添加的硬质颗粒的量，并且机械强度和机械加工性优异。为了达到上述目的，使用了一种用于阀座的铁基烧结合金材料，其被制成含有平均一次粒径为5〜20μm的第一硬质粒子和具有平均一次粒子的第二硬质粒子直径为20〜150μm，其中通过激光衍射散射分析测量的粒度分布曲线具有N个峰（N是等于或大于2的整数），并且当与峰顶位置相对应的粒径被表示为 DT1〜DTN，相邻的DTn-1与DTn（| DTn-1-DTn |：n为2以上且等于或小于N的整数）之间的顶峰粒径差为15 在至少一个相邻的DTn-1和DTn中至100μm; 并且构成混合硬质粒子的第一硬质粒子和构成混合硬质粒子的第二硬质粒子的总面积比在铁基烧结合金的织构中为10〜60％。

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