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    • 3. 发明申请
    • Heat treatment method and device for piping
    • 管道热处理方法及装置
    • US20060113010A1
    • 2006-06-01
    • US11290468
    • 2005-12-01
    • Noboru SaitouNobuyoshi YanagidaShoji HayashiSatoshi KannoKunio Enomoto
    • Noboru SaitouNobuyoshi YanagidaShoji HayashiSatoshi KannoKunio Enomoto
    • C21D9/08
    • C21D9/50C21D1/42C21D9/08Y02P10/253
    • In a method for heat treatment of an existing pipe constituting a piping system, for converting the residual stress at a welded metallic portion and a welding heat influenced portion of the inside surface of the pipe, into a compressive stress and thereby generate the compressive stress in the inside surface of the existing pipe, a coolant is retained in the pipe; an arbitrary portion of the outside surface of the pipe is heated; thereby a temperature distribution little in temperature difference is produced in the wall surface of the pipe at the heated portion; and then the coolant is allowed to flow. By converting the residual stress at the welded metallic portion and the welding heat influenced portion of the inside surface of the pipe, into the compressive stress, stress corrosion cracking generated from the welded metallic portion and the welding heat influenced portion can be suppressed.
    • 在构成管道系统的现有管道的热处理方法中,用于将焊接金属部分的残余应力和管内表面的焊接热影响部分变形为压缩应力,从而产生压缩应力 现有管道的内表面,冷却剂被保留在管道中; 管道的外表面的任意部分被加热; 从而在加热部分的管的壁表面产生温差很小的温差; 然后允许冷却剂流动。 通过将焊接金属部分的残余应力和管内表面的焊接热影响部分转化为压缩应力,可以抑制从焊接金属部分和焊接热影响部分产生的应力腐蚀裂纹。
    • 10. 发明申请
    • STEEL CORD FOR REINFORCING RUBBER ARTICLE AND PNEUMATIC RADIAL TIRE
    • 用于增强橡胶制品和气动径向轮胎的钢丝绳
    • US20090283193A1
    • 2009-11-19
    • US12092198
    • 2006-10-30
    • Shoji Hayashi
    • Shoji Hayashi
    • B60C9/02
    • D07B1/062B60C9/0007B60C9/2006D07B1/0626D07B2201/2006D07B2201/2018D07B2201/2022D07B2201/2023D07B2201/2028D07B2201/2029D07B2201/206D07B2401/206D07B2501/2046D07B2501/2076D07B2801/12
    • There is provided a steel cord for reinforcing rubber article having superior durability, and a pneumatic radial tire improved in steering stability and durability by using it. There is also provided a pneumatic radial tire satisfactorily combining steering stability, durability, and good cost performance required for a high performance radial tire intended for the application to a high performance passenger car. The steel cord for reinforcing rubber article has a 1×n structure composed of a plurality of steel filaments stranded in the same direction at the same stranding pitch, wherein the number of the steel filaments is 6 to 12 and the diameter of the steel filaments is 0.08 to 0.21 mm. In the pneumatic radial tire having a carcass (1), as a framework, extending toroidally between a pair of bead parts (11), with a crown part of the carcass being reinforced with a belt layer (2), the above-described steel cord for reinforcing rubber article is applied to a cord constituting the belt layer.
    • 提供了具有优异的耐久性的增强橡胶制品用钢丝帘线和通过使用它提高了操纵稳定性和耐久性的充气子午线轮胎。 还提供了一种令人满意地将操纵稳定性,耐久性以及旨在用于高性能乘用车的高性能子午线轮胎所需的良好成本性能的充气子午线轮胎。 用于增强橡胶制品的钢丝绳具有1xn结构,其以相同绞合间距以相同方向绞合的多根钢丝组成,其中钢丝数为6〜12,钢丝的直径为0.08〜 0.21毫米。 在具有胎体(1)的充气子午线轮胎作为框架,在一对胎圈部件(11)之间环状延伸,胎体的胎冠部分被带束层(2)加强,上述钢 将用于增强橡胶制品的帘线施加到构成带束层的帘线上。