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分析了X1K型集装箱快运平车C级钢锁座焊缝裂纹产生的原因,通过改进焊接工艺,采取焊前预热措施,解决了C级钢锁座焊缝裂纹问题,并提出用B级钢代替C级钢是避免锁座焊缝裂纹产生和改善焊接工艺的有效办法。
The reason of cracks in weld of C-type steel lock seat of X1K container express truck was analyzed. The welding crack of C-type steel lock seat was solved by improving the welding process and adopting preheating before welding. Replacing C-class steels is an effective way to avoid the generation of weld cracks in the lock seat and to improve the welding process.