Method of and apparatus for extrusion
    93.
    发明授权
    Method of and apparatus for extrusion 失效
    挤出方法和设备

    公开(公告)号:US4773954A

    公开(公告)日:1988-09-27

    申请号:US12586

    申请日:1987-02-09

    Abstract: A method of and apparatus for simultaneously extruding a coating comprising a plurality of layers of dissimilar plastic compounds having substantially different melting points onto a moving electrical conductor wherein the plastic compounds are mechanically and thermally separated. Separating the two plastics prevents thermal degradation of the two extrudates by causing their melt temperatures to remain substantially constant.

    Abstract translation: 一种用于同时挤出涂层的方法和装置,其包括具有实质上不同熔点的多个不同塑料化合物层到移动电导体上,其中塑料化合物被机械和热分离。 分离两种塑料通过使它们的熔融温度保持基本上恒定来防止两种挤出物的热降解。

    Production of cross-linked polymeric extruded articles
    95.
    发明授权
    Production of cross-linked polymeric extruded articles 失效
    交联聚合挤压制品的生产

    公开(公告)号:US4528155A

    公开(公告)日:1985-07-09

    申请号:US512958

    申请日:1983-07-12

    Applicant: Danny S. Elder

    Inventor: Danny S. Elder

    Abstract: In a method of producing an extruded, cross-linked cable coating of filled polyethylene wherein the extruder is charged with commingled polyethylene pellets and filler-EPR masterbatch pellets containing a peroxide cross-linking agent, the peroxide is incorporated in the masterbatch pellets by application to and absorption in the pellets during advance of the pellets to the extruder, while the pellets are continuously maintained at an elevated temperature for preventing bleed-out of absorbed peroxide.

    Abstract translation: 在制造填充聚乙烯的挤出的交联电缆涂层的方法中,其中挤出机装有混合的聚乙烯颗粒和含有过氧化物交联剂的填料-EPR母料颗粒,将过氧化物通过应用于母料颗粒 并且在将颗粒提前到挤出机期间在颗粒中吸收,同时将颗粒连续地保持在高温以防止吸收的过氧化物渗出。

    Method for the extrusion of thermoplastic material composites
    96.
    发明授权
    Method for the extrusion of thermoplastic material composites 失效
    热塑性材料复合材料的挤出方法

    公开(公告)号:US4302409A

    公开(公告)日:1981-11-24

    申请号:US144049

    申请日:1980-04-28

    Abstract: Method for dispersing a fluid additive within only a portion of a stream of thermoplastic material comprising the steps of(a) flowing said stream of thermoplastic material into a channel having walls of substantially circular cross section, into which there has been placed a rotating mixer head having in the surface thereof a plurality of alternate lands and grooves each of said lands and grooves having an upstream end and a downstream end, said lands alternating with said grooves and being arranged in pairs, each of said pairs having a land in loose clearance with said wall followed by a land in close clearance with said wall, said mixer head having an unobstructed internal passage positioned therein over a substantial portion of its terminal length and a plurality of conduits severally connecting elongated zones between said lands pairs and said hollow internal passage, and(b) injecting said fluid additive into said channel at a position between said upstream and downstream ends of said lands and grooves.

    Abstract translation: 用于将流体添加剂分散在热塑性材料流的仅一部分内的方法,包括以下步骤:(a)将所述热塑性材料流流入具有基本圆形横截面壁的通道中,其中放置有旋转混合器头 在其表面上具有多个替代的焊盘和槽,每个所述焊盘和槽具有上游端和下游端,所述焊盘与所述槽交替成对并且成对布置,每个所述对具有松散间隙的焊盘, 所述壁随后与所述壁紧密地间隔开,所述混合器头部具有位于其末端长度的大部分上的不受阻碍的内部通道,以及多个导管,其在所述焊盘对和所述中空内部通道之间分别连接细长区域, 和(b)在所述上游和下游端之间的位置处将所述流体添加剂注入所述通道 说土地和沟槽。

    Method for extruding a cross-linked material
    97.
    发明授权
    Method for extruding a cross-linked material 失效
    挤出交联材料的方法

    公开(公告)号:US4234531A

    公开(公告)日:1980-11-18

    申请号:US008574

    申请日:1979-02-01

    Applicant: Robert Jocteur

    Inventor: Robert Jocteur

    Abstract: A method of extruding a cross-linked material, more particularly an insulating cross-linked material around an electrical cable. In an extrusion machine comprising a housing terminated with an extrusion head and provided with a filtering means adjacent the outlet end of said housing, the cross-linkable product is fed without addition of a cross-linking agent, said cross-linking agent being first introduced in said cross-linkable material downstream said filtering means. The cross-linkable material is kept in the housing at an elevated temperature to be in a fluid state, the cross-linking agent being introduced at a temperature slightly lower than its reaction temperature, whereby the extrudate may be at a temperature near the maximum temperature admissible for the extrusion of said material.

    Abstract translation: 一种在电缆周围挤出交联材料,更具体地是绝缘交联材料的方法。 在挤出机中,包括用挤出头端接的壳体,并且邻近所述壳体的出口端设有过滤装置,所述可交联产物在不加入交联剂的情况下进料,所述交联剂首先被引入 在所述过滤装置下游的所述可交联材料中。 可交联材料在升高的温度下保持在壳体中以处于流体状态,交联剂在略低于其反应温度的温度下引入,由此挤出物可处于接近最高温度的温度 允许用于挤出所述材料。

    Tire rubber extruder automatic loading and management system

    公开(公告)号:US09919468B1

    公开(公告)日:2018-03-20

    申请号:US14512363

    申请日:2014-10-10

    Abstract: A tire rubber extruder automatic loading and management system is provided for continuous and automatic control of a rubber extrusion line. Batches of rubber slab material, whether for sidewall or tread, are connected in an automated manner to provide a continuous material stream for feeding a tread extruder supply conveyor within a tire manufacturing system. Joiner between adjacent slabs are implemented utilizing a stitched joint of material. Stitch pins are driven through both rubber slab layers to a specific depth into a clearance hole to create an optimized rubber mechanical adhesion zone. The result is a funnel shaped adhesion channel penetrating entirely through the layers of material perpendicular to the direction slab movement and tension. The resulting “rivet” like button structures are extremely strong, have no Impurities that could otherwise be added via adhesives, and can be formed in an automated manner within the available process cycle times.

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