... chain intermittent fillet welding并列断续角焊缝; 链式断续角焊 chemical welding化学焊 circular seam welding环缝对接焊 ...
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铝合金因其独特的物理、化学性能对mig焊有特殊的要求。
Al - alloys have special requirements on MIG welding due to their unique physical and chemical properties.
文章叙述了X80管线钢的化学成分、力学性能，并重点介绍了采用全自动焊和手工焊的焊接材料及焊接工艺。
This paper depicts the chemical composition, mechanical performance of X80 line pipes, giving emphasis to the welding materials and welding processes of fully automatic welding and manual welding.
对低碳钢管线用的氩弧焊丝的化学成分、机械性能、 可焊性能、 耐腐蚀性能进行对比分析，为合理选用焊丝提供了依据。
The chemical composition, mechanic property, weldability and corrosion resistance of argon arc welding wire for low carbon steel pipe line are contrasted and analyzed.
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