The hardness distribution without obviously declining gradient in one range of the hardened layer produced by plasma quenching is rather different from that by conventional quenching.

等离子表面淬火硬化层的硬度分布，在某一区域内无明显的硬度梯度，这与常规淬火方法的结果不太一样。

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The result shows it is viable that 45 steel ooze boron oil quenching replacing conventional 45 steel found produces tower wheel in water tank drawbench .

用45钢渗硼油淬用来代替传统的45钢铸造生产水箱拉丝机中的塔轮是可行的。

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The quenching deformation of complex sections can not be avoided because it is not easy to control the deformation with conventional method.

复杂零件的淬火变形是不可避免的，用常规方法很难控制变形。

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