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一些铝的锻件和铸件为了达到设计的最小物理性能都是在冷水中淬火。遇到不能接受的变形或开裂时习惯改用热水。但是热水淬火有代表性的结果是,明显降低机械性能和大大增加潜在的晶间腐蚀。大约30年前,SEA介绍了I型聚乙烯共聚物淬火介质代替热水。这些淬火介质在仍然达到Mil手册5设计的最低性能的前题下,能得到明显的,常常是意想不到的减少残余应力和变形的优点。但是即使这些淬火介质已使用了很长时间,当要使用和如何检测时仍然广泛存在不了解如何应用。本文的目的就是解决这些问题。
Some aluminum forgings and castings are quenched in cold water in order to achieve the minimum physical properties of the design. In the event of unacceptable deformation or cracking habits switch to hot water. However, the representative result of hot water quenching is that it significantly reduces the mechanical properties and greatly increases the potential for intergranular corrosion. About 30 years ago, SEA introduced Type I polyethylene copolymer quenchant instead of hot water. These quench media have the obvious, often unexpected, advantage of reducing residual stresses and deformations while still achieving the minimum performance that Mil Handbook 5 designs. But even though these quench media have been used for a long time, they are still widely used when and how to detect them. The purpose of this article is to solve these problems.