冷焊是应用机械力、分子力或电力使得焊材扩散到器具表面的一种工艺（方法）。在微观尺度下该现象与材料表面原子的扩散密切相关。
The cylinder is large steel casting with poor weldability. In light of the conditions on site, high nickel A507 electrode and cold welding methodology were selected.
汽缸是焊接性差的大型铸钢件，根据现场情况，选用高镍的A507焊条，采用冷焊法进行缺陷补焊处理。
参考来源 - 南海市发电A厂1号机汽缸裂纹的补焊处理 Repair welding for cracks on No.1 steam turbine cylinder in Nanhai A Power Plant·2,447,543篇论文数据，部分数据来源于NoteExpress
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