发明名称 |
EXTRUSION HEAD FOR EXTRUDING PLASTOMERIC OR ELASTOMERIC MATERIAL ILAMENTS |
摘要 |
<p>An extrusion head for extruding a plastomeric or elastomeric material on at least two filaments having a diameter of the order of 0.1 mm. and having a high modulus of elasticity while maintaining a constant spacing between the filaments and a process for such extrusion. The head comprises a mandrel with a cylindrical portion and a frusto-conical portion, the mandrel having grooves equal in number to the number of filaments extending along the surfaces of both portions for guiding the filaments. The frusto-conical portion has channels between the grooves for feeding the material between the filaments. A die with an opening having parallel walls for guiding the filaments and having a conical surface spaced from the frusto-conical portion is mounted adjacent the latter to provide a space for flow of the material. A further element adjacent the die may be used to extrude further material over the filaments embedded in the material extruded therebetween.</p> |
申请公布号 |
CA1062862(A) |
申请公布日期 |
1979.09.25 |
申请号 |
CA19750242146 |
申请日期 |
1975.12.19 |
申请人 |
INDUSTRIE PIRELLI SOCIETA PER AZIONI |
发明人 |
FERRENTINO, ANTONIO;BROVEDAN, ANTONIO;SALA, ANGELO |
分类号 |
H01B13/14;B29B7/00;B29C47/00;B29C47/02;B29C47/20;B29C55/00;B29C65/70;B29C65/78;(IPC1-7):29F3/10 |
主分类号 |
H01B13/14 |
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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