发明名称 |
PULVERMETALLKOERPER MIT HOHER KERBSCHLAGZAEHIGKEIT UND VERFAHREN ZU SEINER HERSTELLUNG. |
摘要 |
<p>A copper infiltrated ferrous powder metal part infiltrated with copper or a copper alloy characterized as having after infiltration a residual uninfiltrated porosity of less than about 7 volume percent and a maximum pore size of the residual uninfiltrated porosity of less than about 125 micrometers, said porosity and pore size values being taken from a worst field of view in a functionally critical area of said metal part. Preferably, the part has an overall density of at least 7.50 g/cm<3> and a diffusion depth of copper into the steel matrix of less than about 4 micrometers as determined by chemical etching or less than about 8 micrometers as determined by electron dispersive X-ray analysis (EDXA).</p> |
申请公布号 |
AT71669(T) |
申请公布日期 |
1992.02.15 |
申请号 |
AT19860305440T |
申请日期 |
1986.07.15 |
申请人 |
SCM METAL PRODUCTS INC. |
发明人 |
SVILAR, MARK;GLANCY, STEPHAN;KLAR, ERHARD |
分类号 |
B22F3/26;C22C33/02;(IPC1-7):C22C33/02 |
主分类号 |
B22F3/26 |
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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