发明名称 |
Kneading disc for a screw extruder |
摘要 |
In order to improve the wear-resistance of highly stressed surfaces of a kneading disc in a helical extruding machine, the exposed tips of the kneading disc are provided with inserts of an extremely wear-resistant, hard material. In a variety of embodiments, the tips of the lenticular kneading disc are provided with bores and recesses for receiving the hard inserts. Advantageously, the recesses are cylindrical wells in which cylindrical inserts are soldered or cemented. The inserts may be made from hard metals or ceramics, for example tool steel or tungsten carbide or the like.
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申请公布号 |
US4215942(A) |
申请公布日期 |
1980.08.05 |
申请号 |
US19780952048 |
申请日期 |
1978.10.17 |
申请人 |
WERNER & PFLEIDERER |
发明人 |
CHRISTEN, WOLFGANG;GNADIG, GERHARD;GRIMMINGER, ALBERT;PRZYBYLLA, FRITZ;SEUFERT, WILHELM |
分类号 |
B01F7/00;B01F7/10;B29C47/58;B29C47/60;B29C47/64;(IPC1-7):B29B1/06 |
主分类号 |
B01F7/00 |
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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