为解决工程机械中大型伞齿轮和大薄片类零件的热处理后的变形问题,我厂自制一台脉动淬火压床,并于1974年上半年投产使用。该压床是利用压模对齿轮进行多次周期性的加压和卸压,即变形、整形、再变形、再整形,使齿轮内部的应力不断重新分布和减小,直至达到理想的变形。压床主要部位结构见图1。 In order to solve the large-scale bevel gear construction and engineering machinery parts after the heat treatment of the deformation, I plant a pulsating quenching press, and put into operation in the first half of 1974. The press is the use of stamper on the gear several times of periodic pressurization and pressure relief, that is, deformation, shaping, re-deformation, re-shaping, so that the stress within the gear continue to redistribute and reduce until the desired deformation. The main parts of the structure shown in Figure 1.