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公开(公告)号:US5725952A
公开(公告)日:1998-03-10
申请号:US351279
申请日:1994-12-07
IPC分类号: B29C39/02 , B29C70/34 , B29C70/46 , B29C70/86 , B29D99/00 , B29K105/08 , B29L31/34 , D02G3/04 , D03D15/00 , H01B3/00 , H01B7/17 , H01B17/12 , H01B19/00 , D02G3/00
CPC分类号: H01B19/00 , B29C70/347 , B29C70/465 , B29C70/865 , H01B17/12 , B29L2031/3412 , Y10T428/2918 , Y10T428/2929 , Y10T428/2933 , Y10T428/2936 , Y10T428/2938 , Y10T428/2964 , Y10T428/2969 , Y10T428/30
摘要: A composite article is formed from yarn, comprising high strength fibres and fusible blocking material, and outer fusible material. The yarn is formed into its required shape and placed in a mould. The outer fusible material is introduced into the mould and its temperature is raised so as to melt the lower-melt temperature blocking fibres of the yarn. Under the action of temperature and pressure in the mould, the blocking material fuses so as to fill any interstices between the strength fibres, and the yarn is enclosed within the outer fusible material. The method is useful for forming electrical insulators of high strength glass fibre in the form of a loop (4) blocked against flow of moisture by polypropylene and enclosed within non-tracking polyethylene electrically insulating material (6).
摘要翻译: PCT No.PCT / GB93 / 01210 Sec。 371日期1994年12月7日第 102(e)日期1994年12月7日PCT Filed 1993年6月8日PCT公布。 出版物WO93 / 26016 PCT 日期1993年12月23日复合制品由包含高强度纤维和易熔粘合材料的纱线以及外部可熔材料形成。 纱线形成其所需的形状并放置在模具中。 将外部可熔材料引入模具中,并且升温其温度,以熔化纱线的下部熔融温度阻挡纤维。 在模具中的温度和压力的作用下,阻塞材料熔化以填充强度纤维之间的任何间隙,并且纱线被包封在外部可熔材料内。 该方法可用于形成环状(4)形式的高强度玻璃纤维的电绝缘体,阻止聚丙烯流入水分并封闭在非追踪聚乙烯电绝缘材料(6)内。
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公开(公告)号:US06844503B2
公开(公告)日:2005-01-18
申请号:US10479193
申请日:2002-06-25
CPC分类号: H01B17/14 , H01B17/325 , H01B19/00 , Y10T29/49227 , Y10T29/5313
摘要: A method of providing a shed (2) for a high-voltage insulator (1) includes providing a substantially tubular substrate (3), providing an extruder (10) having an extruder head (11) defining an extrusion direction (A), using the extruder (10) to extrude the shed (2) and applying the shed (2) on the substrate (3) while rotating the substrate relative to the extruder head (11). The extrusion direction (A) substantially coincides with the longitudinal axis of the substrate (3), and the substrate (3) is fed through the extruder head (11).
摘要翻译: 提供用于高压绝缘体(1)的棚(2)的方法包括提供基本上管状的基底(3),提供具有限定挤出方向(A)的挤出机头部(11)的挤出机(10),使用 所述挤压机(10)在使所述基板相对于所述挤压机头部(11)旋转的同时挤压所述梭口(2)并将所述梭口(2)施加在所述基板(3)上。 挤出方向(A)基本上与基材(3)的纵向轴线重合,并且基材(3)通过挤压机头部(11)进料。
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