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我厂大吨位液压式万能试验机在整机测试过程中,在试样夹持部位的上下钳口壳体与机体工作台的20°楔角之间,存在着相对位移和变形。随着负载拉力的逐渐增大,两者之间的滑移也随之增大,有时伴有“异常的声响,这是两接触面相对摩擦产生的,这个问题成了机器总成出厂的主要问题。我们经过反复试验研究,在生产实践中总结出一套较为理想的磷化工艺规程,用此工艺代替原来发黑工艺,能够在工件表面形
I plant large tonnage hydraulic universal testing machine in the whole test process, the upper and lower clamping parts of the sample clamping shell and body bench 20 ° wedge angle, there is a relative displacement and deformation. With the gradual increase in load tension, the slip between the two also increases, sometimes accompanied by ”abnormal sound, which is the relative friction between the two contact surfaces, the problem has become the machine assembly factory The main problem.After repeated trial and error research, we concluded a set of relatively ideal phosphating process rules in the production practice, using this process instead of the original blackening process,