发明名称 |
SETT ATT AV METALLPULVER FRAMSTELLA HALLFASTA LANGSTRECKTA EMNEN SAMT ANORDNING |
摘要 |
<p>An annular die and a matingly provided annular punch cooperate for stepwise building-up a hollow; the punch has one or two channels to which powder is fed; the amount for each feed is limited so that the height of the powder compressed in each step is about 0.6 to 0.8 times the annular dimension of the product to be made.</p> |
申请公布号 |
SE443935(B) |
申请公布日期 |
1986.03.17 |
申请号 |
SE19780010099 |
申请日期 |
1978.09.26 |
申请人 |
MANNESMANN AG |
发明人 |
O * WESSEL |
分类号 |
B22F3/02;B22F3/17;B22F5/10;(IPC1-7):B22F3/02;B22F3/12;B22F3/20 |
主分类号 |
B22F3/02 |
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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