在这种情况下不管零件尺寸如何，其表面总归有一定深度被硬化。
Under these circumstances there would always be some finite depth of surface hardening regardless of size.
因此，辊子需要较高的表面硬度和较深的硬化层深度。
Thus, these rolls require a higher surface hardness and must be hardened to a greater depth.
金属表面硬化层深度的检测及控制是目前机械工业部门急需解决的一个问题，它属于材料检测的范畴。
Nondestructive testing and quality control of metal hardened-depth is an important problem to be solved in machinery industry. It belongs to material property testing.
双程磨削淬硬可使表面硬化层深度及其均匀性、显微硬度及耐磨性得到进一步提高；
The depths and its uniformity of the surface hardened layer, its microhardness and wear resistance are further improved under two-passes grinding.
硬化层深度是等离子弧表面淬火效果的重要指标之一，而硬化层深度与工艺参数、淬火过程中温度场的变化密切相关。
Hardening depth related to the technical parameters and the quenching temperature field is an important target by plasma surface quenching.
与干磨相比，湿磨硬化层表面残余压应力有所提高，但其硬化层深度减少了约30%。
Compared with the dry-grinding, the surface compress residual stresses of the hardened layer under wet-grinding is increased, but its depth of hardened layer reduces about 30%.
用有限元法对非均匀介质的涡流检测信号进行了数值模拟，并针对检测信号采用逼近的方法预测了表面硬化层深度。
The numerical simulation on the eddy signals was introduced by approaching method based on Finite Elements theory to predict the hardened depth.
金属表面硬化层深度的检测是一项非常重要而又困难的工作。
Nondestructive testing of metal hardened depth is an important and difficult job, which belongs to material property testing.
金属表面硬化层深度的检测是一项非常重要而又困难的工作。
Nondestructive testing of metal hardened depth is an important and difficult job, which belongs to material property testing.
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