through-hardening steel的意思|示意

Hardening. This is the process of heating to a temperature above the critical range, and cooling rapidly enough through the critical range to appreciably harden the steel.

淬火。这个工艺是把材料加热到临界温度范围之上，然后迅速冷却到临界温度范围以下，使钢材明显变硬。

An overall chromium coating improves the corrosion resistance of the generally used through-hardening rolling bearing steel.

一个总铬涂层提高了耐腐蚀性能的普遍使用，通过硬化滚动轴承钢。