发明名称 |
CABLE MANUFACTURING PROCESS AND APPARATUS FOR CARRYING OUT THE PROCESS |
摘要 |
<p>A method for manufacturing a cable, the cable including at least one transmissive element and at least one coating layer made of a polymeric material and arranged at a radially outer position with respect to the transmissive element. The method includes the steps of: a) feeding the polymeric material to an extrusion apparatus including an extrusion head, the extrusion head including a male die; a female die coaxially arranged with respect to the male die; a conveying channel, at least one portion of which is defined between the male die and the female die; and b) controlling a cross-sectional area of the at least one portion of the conveying channel in response to a detected quantity, the quantity being caused to vary during the manufacturing of the cable as a function of the actual extrusion speed. An extrusion apparatus for carrying out the process.</p> |
申请公布号 |
EP1874521(A1) |
申请公布日期 |
2008.01.09 |
申请号 |
EP20050741197 |
申请日期 |
2005.04.27 |
申请人 |
PRYSMIAN CAVI E SISTEMI ENERGIA S.R.L. |
发明人 |
CASTIGLIONI, WALTER PA;BALCONI, LUCA,PIRELLI P.A;BAREGGI, ALBERTO .A.;BELLI, SERGIO,PIRELLI P.A |
分类号 |
B29C47/28 |
主分类号 |
B29C47/28 |
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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