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    Sealed wire rope and strand and method of making
    4.
    发明授权
    Sealed wire rope and strand and method of making 失效
    密封钢丝绳及其制造方法

    公开(公告)号：US3800522A

    公开(公告)日：1974-04-02

    申请号：US3800522D

    申请日：1972-08-09

    Applicant: BETHLEHEM STEEL CORP

    Inventor： HUGHES C ,  GRAHAM H

    IPC: D07B1/16 ,  D07B7/14 ,  D02G3/36

    CPC classification number: D07B1/162 ,  D07B1/165 ,  D07B5/002 ,  D07B7/145 ,  D07B2201/2044 ,  D07B2201/2046 ,  D07B2201/2054 ,  D07B2201/2077 ,  D07B2201/2081 ,  D07B2201/2082 ,  D07B2207/404 ,  D07B2801/12 ,  D07B2801/24

    Abstract: A wire rope or strand is impregnated with a plastic foam type internal sealant to cushion the wires and strands and provide corrosion protection by (a) initially impregnating the strand with a foamable plastic composition, (b) heating the strand under ''''free-blowing'''' conditions to foam the plastic composition uniformly about the wires or strands, and (c) preferably finally collapsing the foam material upon the surface of the strand by means of a cold die to form a dense outer plastic jacket. The foamable plastic composition before foaming serves as a lubricant within the stranding die so that no additional stranding lubricant is required. The resulting plastic impregnated wire rope or strand has uniform low interwire foam filler densities. Alternative constructions of impregnated rope or strand can be made.

    Abstract translation: 钢丝绳或股线用塑料泡沫型内部密封剂浸渍以缓冲电线和股线，并通过（a）最初用可发泡塑料组合物浸渍线材提供防腐蚀保护，（b）在“自由吹制” 使塑料组合物均匀地围绕电线或股线发泡的条件，以及（c）最好通过冷模将泡沫材料最终塌陷在股线的表面上，以形成致密的外部塑料外壳。 发泡前的可发泡塑料组合物在绞合模具内用作润滑剂，因此不需要额外的绞合润滑剂。 所得到的塑料浸渍钢丝绳或股线具有均匀的低的线间泡沫填料密度。 可以制成浸渍绳索或绞线的替代结构。

    Tendons for prestressed concrete and process for making such tendons
    7.
    发明授权
    Tendons for prestressed concrete and process for making such tendons 失效
    用于预制混凝土的方法和制造这种方法的过程

    公开(公告)号：US3646748A

    公开(公告)日：1972-03-07

    申请号：US3646748D

    申请日：1970-03-24

    Applicant: FREDERIC A LANG

    Inventor： LANG FREDERIC A

    IPC: B29C47/02 ,  D07B1/14 ,  D07B1/16 ,  D07B7/14 ,  E04C5/01 ,  E04C5/08

    CPC classification number: E04C5/08 ,  B29C47/0016 ,  B29C47/02 ,  D07B1/144 ,  D07B7/12 ,  D07B7/145 ,  D07B2201/2023 ,  D07B2201/2044 ,  D07B2201/2046 ,  D07B2201/2075 ,  D07B2201/2077 ,  D07B2501/2023 ,  E04C5/01

    Abstract: A tendon suitable for posttensioning concrete and for use in other applications comprising a multiple-wire strand incased in a corrosion inhibitor in an amount sufficient to provide a circular enclosure greater than the outside diameter of the strand and having a seamless plastic jacket tightly covering said incased strand. A process of making said tendon which comprises the steps of coating and filling the interstices of a multiple-wire strand with a corrosion inhibitor, passing same through a circular die of a diameter greater than the strand to remove excess corrosion inhibitor and to form a circular enclosure of said inhibitor around said strand, and melt extruding a plastic jacket around said incased strand.

    Abstract translation: 一种适用于后固定混凝土并用于其它应用的钢筋，其中包括以腐蚀抑制剂的形式存在的多股线，其数量足以提供大于该股线的外径的圆形外壳，并且具有紧密覆盖所述被切割的无缝塑料外套 股。 制造所述腱的方法包括以下步骤：用腐蚀抑制剂涂覆并填充多股线股的间隙，使其通过直径大于股线的圆形模具以除去多余的腐蚀抑制剂并形成圆形 所述抑制剂围绕所述线束包围，并且围绕所述被绞合的线材熔融挤出塑料护套。

    Corrosion Protection of Cables in a Concrete Structure
    10.
    发明申请
    Corrosion Protection of Cables in a Concrete Structure 审中-公开
    混凝土结构中电缆的腐蚀保护

    公开(公告)号：US20140048975A1

    公开(公告)日：2014-02-20

    申请号：US13585180

    申请日：2012-08-14

    Applicant: David Whitmore

    Inventor： David Whitmore

    IPC: H01B13/22

    CPC classification number: E04C5/015 ,  B28B23/02 ,  C04B20/1003 ,  C04B20/1014 ,  C04B2111/26 ,  C23F11/00 ,  D07B7/12 ,  D07B2201/2077 ,  D07B2205/2046 ,  D07B2205/30 ,  D07B2205/3017 ,  D07B2501/2023 ,  E04C5/08 ,  E04C5/10 ,  E04G21/12 ,  G01N19/10 ,  H01B13/221 ,  C04B32/02 ,  D07B2801/16

    Abstract: Steel reinforcing cables in concrete are protected against corrosion by injecting a carrier fluid and corrosion inhibitors into interstitial spaces between the wires of the cable at a first location along the cable and causing the fluid to pass through the interstitial spaces between the wires of the cable to a second location along the cable. The cable comprises an array of wires confined together and intimately surrounded by a covering material which is engaged with a periphery of the cable so that there are insufficient interconnected spaces between the cable and the covering material to allow passage of fluid longitudinally along the cable outside the cable itself. The method can be used with pre-stressed concrete, with post-tensioned bonded cables and with extruded un-bonded mono-strand cables.

    Abstract translation: 通过在电缆的第一位置沿着电缆注入载体流体和腐蚀抑制剂到电缆的电线之间的间隙空间中并且使流体通过电缆的电线之间的间隙，将混凝土中的钢筋加固电缆防止腐蚀 沿着电缆的第二个位置。 电缆包括限定在一起并且被覆盖材料紧密包围的电线阵列，所述覆盖材料与电缆的周边接合，使得电缆和覆盖材料之间的互连空间不足以允许流体沿着电缆沿着电缆的外部通过 电缆本身。 该方法可与预应力混凝土一起使用，具有后张紧的粘合电缆和挤出的未粘合单股电缆。

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