热处理工作者长期的理论研究和生产实践证明,淬火冷却过程对淬火质量起决定性作用,而决定淬火冷却过程的是冷却介质的物理化学性质,如沸点、汽化热、热传导系数,比热、粘度、比重、溶解特性以及逆溶性等。同时又和介质相对淬火工件的流速和流向(即流场)有关,如介质搅动情况等。为了获得良好的淬火效果,人们常以制备“理想淬火介质”来达到。然而用这种改变介质物理化学性质的方法往往涉及复杂的化学制备工艺,而且制得的介质常常存在易 Heat treatment workers long-term theoretical studies and production practices have shown that quench cooling process on the quenching quality plays a decisive role, and decided to quench the cooling process is the physical and chemical properties of the cooling medium, such as boiling point, heat of vaporization, thermal conductivity, specific heat, viscosity, Specific gravity, solubility characteristics and inverse solubility. At the same time and the relative quenching medium relative to the flow rate and flow direction (ie, flow field), such as medium agitation and so on. In order to obtain a good quenching effect, people often to prepare “ideal quenching medium” to achieve. However, using this method of changing the physicochemical properties of a medium often involves complex chemical processes and the resulting medium often