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大家知道,每个阀门都有带梯形螺纹的阀杆,它的作用是使阀杆端头的阀瓣作上下往复直线运动,并且在密封面上产生一定的压力,以得到良好的封闭作用。它本身精度要求虽然不高,但是切削加工的生产效率很低,不能满足生产发展的需要。在党的社会主义建设总路线的光辉照耀下,在党的八届八中全会的鼓舞下,我厂职工解放思想,破除迷信,发挥了敢想、敢干的精神,在技术资料
We all know that each valve has a trapezoidal thread stem, its role is to make the valve stem reciprocating linear motion up and down the valve, and in the sealing surface to produce a certain pressure to get a good closure. Although its own precision requirements are not high, but the cutting production efficiency is very low, can not meet the needs of the development of production. Inspired by the brilliant general line of the party’s socialist construction, inspired by the 8th Plenary Session of the 8th CPC Central Committee, our factory workers have emancipated their minds and superseded superstitions and have played their dare to think and dare to work hard. In the technical data