, in order to avoid the deformation during welding, strong force shall not be used for assembly during connecting pipe. 管子对口后应垫置牢固,避免焊接过程中产生变形,管道连接时不得强力组对。РAll assembled welding joint size ply with the requirement of design document or drawing. 所有组对好的焊接接头尺寸应满足设计文件或图纸的要求。РWelding 焊接РOperation requirement during the whole welding (including pipe welding, non-destruction inspection, weld repair; etc) see pipe welding method statement of pipe fabrication plant. 整个焊接过程(包括管道焊接、无损检测、焊口返修等工序)的操作和要求详见管道预制厂管道焊接方案和焊接工艺卡。РSuperficial treatment of stainless steel pipe weld 不锈钢管道焊缝的表面处理РIf there is requirement in design document regulation or implementation standard, superficial treatment shall be used for all stainless steel pipe weld, remove oxidizing layer until the base metal color shall be exposed.
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