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.
本文总结了影响化学镀镍金可焊性的复杂因素如：前处理的影响、化学镀镍过程的影响、浸金的影响、浸金后水洗的影响、焊料的影响。
This paper servers as a summary review of the complex factors such as the prepare, the process of electroless nickel, immersion gold, the rinse after immersion gold, the solder.
提出了在混凝土结构上化学植筋，再通过塞焊和灌浆安装钢梁节点板的新方法。
This paper puts up a new method for installing steel beam joints on concrete structures by chemically-planted steel bars.
利用化学镀镍作阻挡层，化学镀金作可焊层，可得到良好的焊接效果。
Good soldering result may be obtained by applying electroless nickel as barrier layer and electroless gold as top layer to provide solderability.
利用化学镀镍作阻挡层，化学镀金作可焊层，可得到良好的焊接效果。
Good soldering result may be obtained by applying electroless nickel as barrier layer and electroless gold as top layer to provide solderability.
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