一种长输管道焊接工艺
本发明公开了一种涉及管道焊接领域,具体的说是一种长输管道焊接工艺。技术方案包括在钢管焊接接口处加工坡口;将钢管组对,组对完成后用钨极氩弧自动外根焊工艺进行焊接,所述焊接过程包括预热、根焊、热焊、填充焊及盖面焊。本发明工艺能够满足输氢管道等对根焊质量有严格要求的管道焊接需求,同时具备强地形适应性和高施工效率,实现降本增效。
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