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公开(公告)号：US4100002A
公开(公告)日：1978-07-11
申请号：US564070
申请日：1975-04-01
CPC分类号： H01B13/321
摘要： In a method of continuously producing a multi-stranded powder filled core for an electric cable, the conductors forming the core are kept apart over a length of their travel while powder is applied to them electrostatically, after which the conductors are brought together to form the core. Preferably the conductors are oil coated prior to the application of the powder, the formed core is passed through a powder bath, and a core wrap tape is oiled and applied to the core, the tape being also powder coated on its contacting surface if applied longitudinally to the core rather than helically. For a metal sheathed cable the metal tape forming the sheath may be oiled and powder coated on the surface contacting the core wrap prior to the application of the metal tape to the core unit, to form an intervening layer of powder between the core wrap and the sheath.
摘要翻译： 在连续生产用于电缆的多股粉末填充芯的方法中，形成芯的导体在其行进的一段长度上保持分开，同时将粉末静电施加到其上，之后将导体组合在一起形成 核心。 优选地，在施加粉末之前，导体是油涂层的，所形成的芯通过粉末浴，并且芯包裹带被油化并施加到芯上，如果沿纵向施加，则带也被粉末涂覆在其接触表面上 到核心，而不是螺旋。 对于金属护套电缆，在将金属带施加到核心单元之前，形成护套的金属带可以被油化并且在与芯包裹物接触的表面上被粉末涂覆，以在芯包裹和芯包装之间形成中间的粉末层 鞘。
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公开(公告)号：US3980807A
公开(公告)日：1976-09-14
申请号：US559175
申请日：1975-03-17
申请人： Leo Victor Woytiuk
发明人： Leo Victor Woytiuk
CPC分类号： H01B7/1875 , H01B13/221
摘要： A method of jacketing an electric cable having a corrugated metal sheath, in which the sheath is cleaned, a coating of thermosetting, castable polyurethane is applied to fill the troughs in the corrugations, a fabric is wrapped onto the coated sheath and coated with the same polyurethane, and thermoplastic polyurethane is extruded onto the cable to form a jacket. The coatings of the polyurethane serve as an adhesive for bonding the jacket to the metal sheath. A cable produced by this method comprises a layer of fabric circumscribing the corrugated metal sheath and a jacket of thermoplastic polyurethane overlying the sheath, the fabric being embedded in a layer of thermosetting, castable polyurethane bonding the jacket to the sheath.
摘要翻译： 一种将具有波纹金属护套（其中护套被清洁的电缆）的电缆护套的方法，用于填充波纹中的槽的热固性浇注聚氨酯涂层，将织物包裹在涂覆的护套上并用其涂覆 聚氨酯和热塑性聚氨酯挤出到电缆上以形成外套。 聚氨酯的涂层用作将护套粘合到金属护套上的粘合剂。 通过该方法生产的电缆包括一层围绕波纹金属护套的织物和覆盖护套的热塑性聚氨酯护套，该织物被嵌入一层热固性浇注聚氨酯中，将护套粘合到护套上。
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公开(公告)号：US4004077A
公开(公告)日：1977-01-18
申请号：US556294
申请日：1975-03-07
申请人： Leo Victor Woytiuk
发明人： Leo Victor Woytiuk
CPC分类号： H01B7/288
摘要： An electric cable having a multi-stranded core and a jacket, in which the voids between and around the core are at least partially filled with a mixture of a hydrophobic powder and a hydrophilic powder. The hydrophobic powder may be coated calcium carbonate and a hydrophilic powder may be polyacrylamide, in which case the polyacrylamide should be between 8% and 30% by weight of the mixture. Preferably the individual conductors are coated with a hydrophobic oil such as a low viscosity paraffinic oil.
摘要翻译： 一种具有多股芯和护套的电缆，其中芯之间和周围的空隙至少部分地填充有疏水性粉末和亲水性粉末的混合物。 疏水性粉末可以是包覆的碳酸钙，并且亲水性粉末可以是聚丙烯酰胺，在这种情况下，聚丙烯酰胺应为混合物的8重量％至30重量％。 优选地，各个导体涂覆有疏水性油，例如低粘度石蜡油。
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公开(公告)号：US4002819A
公开(公告)日：1977-01-11
申请号：US695845
申请日：1976-06-14
申请人： Leo Victor Woytiuk
发明人： Leo Victor Woytiuk
CPC分类号： H01B7/285
摘要： An electric cable having a multi-stranded core of insulated conductors and a jacket, in which the spaces between and around the conductors are at least partially filled with a mixture which forms a blockage to the penetration of water. The mixture comprises water repellant treated calcium carbonate and high molecular weight polyacrylamide resin which do not react with each other or when in contact with water. Preferably the individual conductors are coated with a hydrophobic liquid such as a low viscosity paraffinic oil.
摘要翻译： 一种电缆，其具有绝缘导体的多股芯体和护套，其中导体之间和周围的空间至少部分地填充有形成对水的渗透的阻塞的混合物。 该混合物包括防水处理的碳酸钙和不与彼此反应或当与水接触时的高分子量聚丙烯酰胺树脂。 优选地，各个导体涂覆有疏水液体，例如低粘度石蜡油。
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