high-frequency hardening

• 高频淬火

high-frequency hardening的用法和样例：

例句

1. Its original heat treament processes were graphitizing annealing,quenching and tempering,then high-frequency hardening.
   同时因齿条形状特殊，高频淬火时易将齿部完全淬透，不能满足用户要求。
2. The probability and main effect factors of superplastic welding of structural and tool steel after partly high frequency quenching have been examined.
   探讨了结构钢与工具钢待焊接区表面高频淬火后超塑焊接的可行性及影响因素。