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2. 发明授权

US4891493A Narrow gap arc welding process and apparatus therefor 失效
标题翻译：窄间隙电弧焊接工艺及其设备
公开(公告)号：US4891493A
公开(公告)日：1990-01-02
申请号：US943840
申请日：1986-12-11
申请人： Shozo Sato , Toshikazu Shimoyama , Susumu Shono , Osa Matsumoto , Hiromasa Kamei , Takehiko Imada
发明人： Shozo Sato , Toshikazu Shimoyama , Susumu Shono , Osa Matsumoto , Hiromasa Kamei , Takehiko Imada
IPC分类号： B23K9/02 , B23K9/30 , B23K35/02
CPC分类号： B23K35/0261 , B23K9/0213 , B23K9/30
摘要： A narrow gap arc welding process comprises steps of defining a narrow gap between a pair of members to be welded arranged so as to face each other at a predetermined distance, feeding a consumable electrode into a guide cylinder which is movable along the narrow gap, and generating electric arc between the tip of the consumable electrode and the members to be welded to unite them with each other, wherein the consumable electrode, while being deformed plastically to have a wave-like pattern with a pitch of about 10 to 30 mm and a molding width of about 2 to 5 mm depending on welding conditions, is fed into the narrow gap with the direction of the molding width being in line with the direction of the width of the narrow gap and the direction of the tip of the consumable electrode being changed so as to point out one after the other facing edge of the members to be welded alternately at a high frequency. Also, an apparatus for practicing the process is described.
摘要翻译：窄间隙电弧焊接方法包括以下步骤：在要被焊接的一对构件之间以预定距离彼此面对地定义窄间隙，将可消耗电极馈送到沿着窄间隙移动的引导筒中;以及在可消耗电极的前端与被焊接部件之间产生电弧，使其彼此结合，其中消耗电极在塑性变形时具有约10〜30mm的间距的波状图案，以及根据焊接条件形成约2〜5mm的成型宽度，沿着成形宽度的方向与狭窄间隙的宽度方向一致，并且消耗电极的前端方向为改变为以高频率交替地指向要被焊接的构件的另一个面对边缘。此外，描述了用于实施该过程的装置。

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