双介质淬火

根据现有淬火介质冷却速度特性曲线，建立数学模型，计算出换热系数h，从而计算出冷却过程的时间，为完善和发展双介质淬火工艺开拓了新的途径。

In this paper a mathematical model is proposed for calculating the heat transfer coefficient on the basis of avaiable cooling rate curves and the time of cooling process is worked out .

双介质淬火冷却时间计算方法的研究

Study of the Calculating Method of Cooling Time for Interrupted Quenching

本文通过用过饱和硝盐水溶液作冷却介质淬火和用盐水&油双介质淬火处理碳素工具钢的理论依据及工艺结果的比较，对两种工艺的替代进行了研究。

In this paper , the theoretical foundations and technological results of quenching of carbon tool steel in supersaturated nitrate solution are compared with those of interrupted quenching ( salt water-oil ), and the possible replacement between the two processes is studied .