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    • 5. 发明专利
    • Pc-steel stranded wire and rust-proof double-coating film binding structure formation processing method for use in such pc-steel stranded wire
    • PC钢丝绳和防腐双层涂膜结合结构加工方法用于这种PC钢丝绳
    • JP2005007267A
    • 2005-01-13
    • JP2003173275
    • 2003-06-18
    • Kurosawa Construction Co Ltd黒沢建設株式会社
    • HASUI TAKESHIFUJIKAWA KOJI
    • D07B1/16B05D7/20B05D7/24D07B7/14D07B7/18E04C5/08
    • E04C5/08D07B1/0693D07B7/145D07B7/185D07B2201/201D07B2201/2012D07B2201/2013D07B2501/2023Y10T428/2933Y10T428/2936Y10T428/2938Y10T428/294Y10T428/2947
    • PROBLEM TO BE SOLVED: To form a thick coating layer over the surface layer (external surface) of a PC-steel stranded wire without damaging the flexibility thereof as well as a bonding strength when bonded to concrete, so as to improve tensile fatigue characteristic and avoid exposure of under-materials due to damaged coating layer. SOLUTION: The subject method of this invention comprises the following steps A to C. Step A is a pre-treatment for carrying out an under-material adjustment by unbinding the returning side-wire of the PC-steel stranded wire 1 from its core-wire. Step B is a primary coating treatment for loosely stranding a side-wire with respect to the core-wire, and then applying synthetic resin powder as a coating material to the whole surface layer except a spirally ditched portion formed due to stranding, thus forming a resin coating layer only on the surface layer. Step C is a secondary coating treatment for unbinding the side-wire of the PC-steel stranded wire 1 from the core-wire thereof, applying, by way of core-wire adjustment means, the synthetic resin powder coating material to the periphery of the unbound core-wire as well as side-wire, thereby separately forming resin coating layers producing double coating in certain portions of the side-wire. A final step is to strand the side-wire with respect to the core-wire to return the side-wire to its original position, thereby ensuring that the doubly coated portion appears on the surface layer of the PC-steel stranded wire. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:在PC钢绞线的表面层(外表面)上形成厚的涂层,而不损害其柔性以及当与混凝土结合时的接合强度,以便改善拉伸强度 疲劳特性,避免涂层受损的材料暴露。 解决方案:本发明的主题方法包括以下步骤A至C.步骤A是通过将PC钢绞线1的返回侧线从未接合的方式进行材料调整的预处理 其核心线。 步骤B是用于相对于芯线松散地绞合侧线的主要涂层处理,然后将合成树脂粉末作为涂层材料施加到整个表面层,除了由于绞合形成的螺旋沟槽部分,从而形成 树脂涂层仅在表面层上。 步骤C是用于将PC钢绞线1的侧线与其芯线断开接合的二次涂覆处理,通过芯线调整装置将合成树脂粉末涂料施加到 未结合的芯线以及侧线,从而在侧线的某些部分分别形成生产双层涂层的树脂涂层。 最后一步是将侧线相对于芯线绞合以将侧线返回到其原始位置,从而确保双重涂覆部分出现在PC钢绞线的表面层上。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Cord for reinforcing rubber article and tire
    • 用于加强橡胶制品和轮胎的绳
    • JP2008291380A
    • 2008-12-04
    • JP2007137103
    • 2007-05-23
    • Bridgestone Corp株式会社ブリヂストン
    • FUKUDA YUKIMASAISHIZAKA HIROKI
    • D07B1/06B60C9/00
    • D07B1/0633D07B2201/201D07B2201/2012
    • PROBLEM TO BE SOLVED: To improve deterioration in fatigue durability of a cord with relative slippage between filaments with twist disorder produced when repetitively applying great bending input to the cord by suppressing fretting abrasion in the interior of the cord and improving force of constraint acting among the filaments. SOLUTION: The cord is obtained by arranging at least one sheath layer composed of the plurality of filaments around a core composed of one or a plurality of filaments. At least one of the sheath filaments composing the sheath has a covering layer of a polymer and an opening partially exposing the sheath filament in the interior is provided in the covering layer. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过抑制帘线内部的磨损磨损并改善约束力,从而在通过向绳索重复施加大的弯曲输入时产生的扭转紊乱的长丝之间的相对滑动来改善帘线的疲劳耐久性的劣化 在细丝之间作用。 解决方案:通过将由多根细丝组成的至少一个护套层围绕由一根或多根细丝构成的芯片排列而得到。 构成护套的护套长丝中的至少一个具有聚合物的覆盖层,并且在覆盖层中设置部分地露出内部的护套细丝的开口。 版权所有(C)2009,JPO&INPIT