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本文介绍了结707 NiW 手工电焊条的设计研究情况,重点讨论了焊条药皮中 CaCO_3与 CaF_2之比、钨(W)的加入量、焊接线能量等因素对焊条工艺性能、熔敷金属的扩散氢含量、焊缝金属组织及性能的影响。
In this paper, the design and research of the knot 707 NiW electrode are introduced. The factors such as the ratio of CaCO_3 to CaF_2, the amount of tungsten (W), the energy of the welding wire and so on, Content, weld metal microstructure and properties.