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    • 1. 发明专利
      JPS59110490A Improvement of fatigue strength in welded joint part 失效
    • Improvement of fatigue strength in welded joint part
    • 焊接接头部分疲劳强度的改进
    • JPS59110490A
    • 1984-06-26
    • JP22164782
    • 1982-12-16
    • Kawasaki Heavy Ind Ltd
    • MOURI RIYOUSUKE , NAKAYAMA SHIGERU
    • B23K31/00 , B23K9/167
    • B23K9/167
    • PURPOSE:To improve easily and inexpensively the fatigue strength in a welded joint part in a short time by heating and remelting the surface layer of a weld bead by a heat source of a non-consumable electrode type and shaping the surface shape thereof then cooling the same. CONSTITUTION:A TIG welding torch 7 connecting to a power source 11 for welding and an inert gas source 12 is prepd. as a heat source in a welded Tee joint formed by joining base metals 1, 1 with a weld bead 2. Inert gas 10 is released from the tip 9 of the torch 7 and an arc is generated between a tungsten electrode 8 and the surface 2a of the weld bead in the atmosphere of said gas. The surface 2a of the weld bead is heated by the heat of said arc by which the surface layer 2b is remelted to flow by itself, and is shaped to a smooth surface condition 2c when cooled and solidified. An undercut 5 and crater (not shown) are buried to improve fatigue strength simultaneously with shaping in this case. It is effective to mix said layer with the surface layer 2b remelted with a suitable filler metal for added improvement of the fatigue strength.
    • 目的：通过加热和重熔非焊接电极类型的热源来焊接焊缝表面层，并且使其表面形状成形，从而在短时间内容易且廉价地改善焊接接头部件的疲劳强度，然后冷却 相同。 构成：连接到用于焊接的电源11的TIG焊枪7和惰性气体源12被制备。 作为通过将基底金属1,1与焊道2接合而形成的焊接T形接头中的热源。惰性气体10从焊炬7的尖端9释放，并且在钨电极8和表面2a之间产生电弧 的焊缝在所述气体的气氛中。 焊道的表面2a被表面层2b重新熔化的所述电弧的热量加热，自身流动，并且在冷却和固化时成形为光滑的表面状态2c。 在这种情况下，埋设有底切5和凹坑（未示出）以与成形同时提高疲劳强度。 将所述层与用合适的填充金属重熔的表面层2b混合是有效的，以增加疲劳强度。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 2. 发明专利
      JPS6030575A METHOD AND DEVICE FOR PLUG WELDING 失效
    • METHOD AND DEVICE FOR PLUG WELDING
    • JPS6030575A
    • 1985-02-16
    • JP14031783
    • 1983-07-29
    • KAWASAKI HEAVY IND LTD
    • NAKAYAMA SHIGERU , OKADA KOUICHI , MOURI RIYOUSUKE
    • B23K9/02 , B23K9/28
    • PURPOSE:To improve reliability of a joint and the efficiency of a welding operation by moving circularly a torch by means of an oscillating arm supported to a swiveling support in the stage of moving the torch along the circular hole of an upper base metal placed on a base metal. CONSTITUTION:A circular hole 13 is punched to an upper base metal 12 placed on a lower base metal 11 and the tip of a welding torch 21 is moved along the hole 13 to perform plug welding. A mechanism A for rotating the torch which applies circular motion to the torch 21 attached to the other end of an oscillating arm 18 supported in the central part by a rotary support 20 by turning the one end of aid arm by a pivotal pin 17 of a turning body 16 fitted 15 pivotally to a driving source 14. Welding is accomplished repeatedly by setting programmatically the welding conditions for the root pass, building-up and finishing according to the thickness of the material 12. The joint surface width and penetration depth necessary for design are thus substantially assured and the working efficiency is improved without requiring intricate edge preparation.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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