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分析了曲轴淬火裂纹产生的主要原因，提出采用水溶性淬火介质解决淬火裂纹的措施；指出在淬火硬化层范围内，调整中频参数对淬火裂纹影响很小。
The main reason of crankshaft crack was analyzed. The measures to solve the quench crack by water - soluble quenching medium were put forward. It was pointed out that the adjustment of medium frequency parameters had little effect on the quench crack in the range of quench hardening layer.