发明名称 |
Piston ring and thermal spray coating used therein, and method for manufacturing thereof |
摘要 |
The piston ring of the present invention comprises a thermal spray coating comprising chromium carbide particles having an average particle size of 5 mum or less, and a matrix metal composed of a Ni-Cr alloy or a Ni-Cr alloy and Ni at least on an outer peripheral surface, said thermal spray coating having an average pore diameter of 10 mum or less and a porosity of 8% or less by volume. A piston ring having excellent wear resistance, scuffing resistance and peeling resistance with little attackability on a mating member is obtained by forming a homogeneous thermal spray coating having a fine microstructure.
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申请公布号 |
US7291384(B2) |
申请公布日期 |
2007.11.06 |
申请号 |
US20050531423 |
申请日期 |
2005.04.15 |
申请人 |
KABUSHIKI KAISHA RIKEN |
发明人 |
OBARA RYOU;TAKIGUCHI KATSUMI;HOSOTSUBO YUKIO |
分类号 |
B32B5/16;B32B5/18;B32B15/00;C23C4/06;C23C4/10 |
主分类号 |
B32B5/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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