发明名称 |
Piston ring comprises metal casting material comprising spherical gas bubbles occupying metal casting material |
摘要 |
<p>Piston ring (1) comprises a metal casting material (2) comprising spherical gas bubbles occupying 5-10 vol.% of metal casting material. An independent claim is also included for producing piston ring, comprising (a) preparing a melt of the starting materials, (b) casting the melt into a prefabricated mold, and (c) storing the spherical gas bubbles in the piston ring while cooling the gas bubbles.</p> |
申请公布号 |
DE102010042413(A1) |
申请公布日期 |
2012.04.19 |
申请号 |
DE20101042413 |
申请日期 |
2010.10.13 |
申请人 |
FEDERAL-MOGUL BURSCHEID GMBH |
发明人 |
MITTLER, RICHARD;PELSOECZY, LASZLO |
分类号 |
B22D15/02;C22C38/04;F16J9/00 |
主分类号 |
B22D15/02 |
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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