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公开(公告)号:US4215942A
公开(公告)日:1980-08-05
申请号:US952048
申请日:1978-10-17
CPC分类号: B29C47/0844 , B01F7/105 , B29C47/0845 , B29C47/58 , B29C47/60 , B29C47/64 , B29C47/0009
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.
摘要翻译: 为了提高螺旋挤压机中捏合盘的高应力表面的耐磨性,捏合盘的露出头部设有极耐磨硬质材料的刀片。 在各种实施例中,透镜式捏合盘的尖端设置有用于接收硬插入件的孔和凹部。 有利地,凹槽是圆柱形孔,其中圆柱形刀片被焊接或胶合。 插入件可以由硬质金属或陶瓷制成,例如工具钢或碳化钨等。