发明名称 |
Method for preparing a composite metal sintered article |
摘要 |
A composite metal sintered article combining a metal shell which has been electroformed and/or electroless plated and/or vapor deposited, positioned inside or outside of a metal sintered compact. A method of making the composite metal sintered article using both a powder metallurgy process and a surface treating process. This composite metal sintered article has excellent surface properties and high dimensional accuracy and is favorably used for many kinds of forming molds, dies and structural members, especially for press molds in making glassware.
|
申请公布号 |
US4261745(A) |
申请公布日期 |
1981.04.14 |
申请号 |
US19780974521 |
申请日期 |
1978.12.29 |
申请人 |
TOYO KOHAN CO., LTD. |
发明人 |
WATANABE, TADAO;OHHORI, MITSUO;OHTA, AKIO;KONDO, YOSHIKAZU |
分类号 |
B22F3/12;B22F5/00;B22F7/08;C03B11/06;C03B40/00;(IPC1-7):B22F7/04 |
主分类号 |
B22F3/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|