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公开(公告)号：EP3162475A1
公开(公告)日：2017-05-03
申请号：EP15812153.3
申请日：2015-06-17
发明人： HASHIMOTO Kimiaki
IPC分类号： B22F5/10 , B22F1/00 , C22C1/04 , C22C9/00 , C22C9/06 , C22C19/07 , C22C29/00 , C22C32/00 , F01L3/02
CPC分类号： F01L3/02 , B22F1/0003 , B22F3/16 , B22F5/008 , B22F2301/10 , B22F2301/15 , B22F2301/35 , B22F2304/10 , B22F2998/10 , C22C1/0425 , C22C1/0433 , C22C9/00 , C22C9/06 , C22C19/07 , C22C38/002
摘要： To provide a press-fit, sintered valve seat having high valve coolability and wear resistance for use in a high-efficiency engine, and its production method, Cu powder having an average particle size of 45 µm or less and purity of 99.5% or more is used to form a network-connected Cu matrix, even though a relatively large amount of hard Co-based alloy particles are added; and Fe-P alloy powder is used for densification by liquid-phase sintering.
摘要翻译： 为了提供用于高效率发动机的具有高阀门可冷却性和耐磨损性的压配烧结阀座及其制造方法，提供平均粒径为45μm以下且纯度为99.5％以上的Cu粉末 用于形成网络连接的Cu基体，尽管添加了相对大量的硬Co基合金颗粒; 并且通过液相烧结使用Fe-P合金粉末致密化。
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公开(公告)号：EP3358156A1
公开(公告)日：2018-08-08
申请号：EP16851635.9
申请日：2016-09-28
发明人： HASHIMOTO Kimiaki
CPC分类号： F01L3/02 , B22F1/00 , B22F1/0011 , B22F5/008 , B22F2201/20 , B22F2301/10 , B22F2301/15 , B22F2301/35 , B22F2304/10 , C22C1/04 , C22C19/07 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24 , C22C38/34
摘要： To provide a press-fitting, sintered valve seat having excellent valve coolability enabling use in high-efficiency engines, as well as excellent deformation resistance and wear resistance, first and second hard particles differing in hardness are dispersed in a total amount of 25-70% by mass in a network-shaped Cu matrix, the second hard particles having hardness of 300-650 HV0.1, lower than that of the first hard particles, and 0.08-2.2% by mass of P is contained in the sintered valve seat.
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公开(公告)号：EP3406865A1
公开(公告)日：2018-11-28
申请号：EP17870625.5
申请日：2017-12-01
发明人： HASHIMOTO Kimiaki
IPC分类号： F01L3/02 , B22F5/10 , B22F7/00 , B22F7/02 , C22C1/05 , C22C9/00 , C22C9/02 , C22C19/07 , C22C27/04 , C22C38/00 , C22C38/12 , C22C38/22 , C22C38/24 , C22C38/36
摘要： To provide a sintered valve seat having excellent valve coolability making it usable for high-efficiency engines, as well as excellent deformation resistance, wear resistance and detachment resistance, the valve seat is provided with a two-layer structure having a seat layer repeatedly abutting a valve face, and a support layer abutting bottom and inner peripheral surfaces of a valve-seat-press-fitting opening of a cylinder head; the seat layer containing at least one selected from Co-based hard particles and Fe-based hard particles in a matrix of Cu or its alloy; and the support layer containing at least one selected from Fe particles and Fe alloy particles in a matrix of Cu or its alloy.
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