新配方水基淬火介质的制备及冷却特性

Preparation and cooling characteristic of a new formula water-based quenching medium

配制出一种新配方水基淬火介质,该淬火介质由聚烷撑乙二醇(PAG)、冷速调整添加剂、防锈剂、消泡剂、防腐剂和水组成;研究了新配方水基淬火介质的冷却特性并与水、淬火油和UCON E淬火介质进行了对比。结果表明,新配方水基淬火介质的冷却特性介于水和油之间,3%PAG淬火介质的最大冷却速度为322.5℃·s^(-1),300℃下的冷却速度为112.4℃·s^(-1),与5%UCON E淬火介质相当。

A new prescription of water-based quenching medium consisting of polyalkylene glycol（ PAG）,cooling rate adjustment additive,rust preventive,antifoam,preservative and water was developed. The cooling characteristic of the water-based quenching medium was analyzed by comparing with that of water,quenching oil and UCON E quenching medium. The results show that the cooling characteristic of the water-based quenching medium is intermediate between water and quenching oil. The maximum cooling speed of the quenching medium with 3% PAG concentration is 322. 5 ℃ ·s^（-1）,and the cooling speed at 300 ℃ is 112. 4 ℃ ·s^（-1）,which is comparable to that of 5% UCON E quenching medium.