发明名称 |
Verfahren zur Herstellung von Teilen aus pulverförmigem Material. |
摘要 |
Provided is a method of manufacturing sintered parts from particulate material, e.g., metal or ceramic parts. The method comprises mixing together predetermined amounts of powdered particulate material and a binder, which mixture is then molded under heat and pressure. The binder comprises at least a lower melting point component and a higher melting point component, with the lower melting point component remaining in a liquid state, becoming semi-solid or relatively soft upon cooling to ambient temperatures. Prior to sintering, the lower melting point component of the binder is selectively dissolved in a liquid solvent, and the higher melting point component is removed upon heating at temperatures below the sintering temperature. The result is a process which eliminates or prevents the formation of oxides, substantially reduces the time required for debinding and sintering, and essentially eliminates cracking in the finished part. |
申请公布号 |
DE3854547(D1) |
申请公布日期 |
1995.11.09 |
申请号 |
DE19883854547 |
申请日期 |
1988.10.06 |
申请人 |
RISI INDUSTRIES, INC., CHULA VISTA, CALIF., US |
发明人 |
JOHNSON, KENNETH P., DIAMOND BAR, CA 91765, US |
分类号 |
B22F3/02;B22F1/00;B22F3/10;B22F3/22;C04B35/632;C04B35/634;C04B35/638;C04B38/00;C22C33/02 |
主分类号 |
B22F3/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|