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我厂生产的手用丝锥,螺纹部分是用螺丝搓板滚制成的。滚制螺纹所用的螺丝搓板,是用18高速钢,经热处理后,还需要进行精密的磨加工。在最初制造时,採用一般的高速钢热处理方法,结果发现滚丝时搓板牙齿有崩口和歪倒的现象;因此不能使用,影响了丝维的生产。我们认为搓极牙齿的崩口是与热处理后的应力,以及硬度、靱性等机械性能有关。牙齿的歪倒是由于热处理后,表面脱炭未被完全磨去的缘故。螺丝搓板的制造问题,曾成为我们丝维生产
I plant the hand tap, thread part is made of screw washboard roll. Roll screw thread used in the washboard is 18 high-speed steel, after heat treatment, but also the need for precision grinding. At the time of initial manufacture, a general high-speed steel heat treatment method was used. As a result, it was found that there was collapsing and collapsing of the washboard teeth during rolling; therefore, it was not usable and affected the production of the silk yarn. We think that the toothbrush rubbing teeth is related to the stress after heat treatment and the mechanical properties such as hardness and elasticity. Teeth crooked is due to heat treatment, the surface off charcoal is not completely worn away sake. Screw washboard manufacturing problems, has become our silk-dimensional production