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1. 发明授权

US4490599A Apparatus for flash welding of pipes 失效
标题翻译：管道闪光焊接设备
公开(公告)号：US4490599A
公开(公告)日：1984-12-25
申请号：US295568
申请日：1981-08-24
申请人： Vladimir K. Lebedev , Sergei I. Kuchuk-Yatsenko , Vasily A. Sakharnov , Boris A. Galian
发明人： Vladimir K. Lebedev , Sergei I. Kuchuk-Yatsenko , Vasily A. Sakharnov , Boris A. Galian
IPC分类号： B23K11/093 , B23K11/04 , B23K11/32
CPC分类号： B23K11/0935
摘要： An internal apparatus for flash welding pipes together in end to end relationship both under factory conditions and in the field, for example in laying trunk pipelines, comprises an elongate supporting member carrying an axially movable clamping assembly with electrode jaws for clamping one pipe, an axially immovable clamping assembly with electrode jaws for clamping the other pipe, and a doughnut-type welding transformer. The welding transformer is disposed at the side of the axially immovable clamping assembly, which is distant from the joint. The axially immovable clamping assembly is mounted on the elongate supporting member in a manner to provide an annular clearance therebetween such that there are extending therethrough two coaxial contact tubes, which are electrically insulated from one another and connect the welding transformer with the electrode jaws, whereby in operation a welding circuit is established.
摘要翻译：用于在工厂条件和现场的端到端关系中将管子一起闪光焊接在一起的内部装置，例如在铺设干线管道中包括一个细长的支撑构件，该支撑构件承载具有用于夹紧一个管子的电极爪的可轴向移动的夹紧组件，不可移动的夹紧组件，带有用于夹紧另一根管子的电极爪和一个环形焊接变压器。焊接变压器设置在远离接头的轴向不可移动的夹紧组件的侧面。轴向不可移动的夹紧组件以在其间提供环形间隙的方式安装在细长支撑构件上，使得其中延伸穿过两个彼此电绝缘并且将焊接变压器与电极钳口连接的两个同轴接触管，由此在操作中建立了焊接电路。

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