The demand to welding process of high - frequency welding pipe is introduced, some related parameters proposed.

介绍了高频焊管对焊接工艺的要求, 提出了有关工艺及技术参数.

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This article describes the whole process of JCOE longitudinal submerged welding pipe made from rolling plate.

简述了采用热轧卷板制造直缝埋弧焊接钢管的全过程.

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This article describes the whole process of longitudinal submerged arc welding pipe made from rolling plate.

采用卷板制造直缝埋弧焊接钢管,在国内甚至世界上尚属首次.

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The structure characteristic of a type fly cutter suitable for manufacturing helix welding pipe are introduced.

介绍了一种适合于螺旋焊管生产的新型飞切机的结构和特点.

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Meanwhile the specific ways to improve J 55 welding pipe quality are put forward.

同时提出了提高J55焊管质量的具体途径.

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