苏联《铸造生产》杂志1970年第7期,介绍了一种铸件时效处理的新工艺,称为热冲击法。现将内容译述如下,供参考。 热冲击法时效工艺的原理是使铸件快速加热,在加热过程中形成的热应力正好与铸造残余应力相叠加,引起塑性变形,从而达到降低残余内应力和强化铸铁基体的目的。 大家知 The Soviet Union, “Casting Production” magazine in 1970 No. 7, introduced a casting aging treatment of new technology, called the thermal shock method. The content is now translated as follows, for reference. Thermal shock aging process is the principle of the rapid casting of the heat, the heating process in the formation of thermal stress coincided with the casting residual stress superimposed, causing plastic deformation, so as to reduce residual stress and strengthen the purpose of cast iron matrix. We all know