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详细介绍了ＬＺＸ２型铝锭连续铸造机主链轮的铸铁冷焊修复方法。并从中摸索出了一套较理想的焊接工艺。采用这种方法修复的主链轮，保证了铝锭连续铸造机的正常运行，赢得了时间，减少了损失，取得了一定的经济效益。
The repair method of cast iron cold welding of main sprocket of LZX2 continuous casting machine is introduced in detail. And from which worked out a set of more ideal welding process. The main sprocket repaired in this way ensures the normal operation of the continuous casting machine of the aluminum ingot, has won the time, reduced the loss and achieved certain economic benefits.