在标准件的生产中,大量采用效率较高的搓丝工艺制造螺栓。搓丝板的材料通常采用Cr12MoV或9CrSi等合金工具钢。搓丝板的齿纹采用滚压加工。搓丝板磨损后,有的采取退火处理重新制造;多数工厂则按报废处理,浪费了大量的合金工具钢。针对这种情况,我们车间组成了三结合小组,破除迷信、解放思想,大闹技术革新,终于试验成功搓丝板多线磨削新工艺。利用这种新工艺,不仅 In the production of standard parts, a large number of high efficiency rolling wire manufacturing process bolts. Rolling board materials are usually used Cr12MoV or 9CrSi alloy tool steel. Roll tooth pattern using rolling. Roll wear, some take annealing to re-create; most factories press scrap, wasting a lot of alloy tool steel. In response to this situation, our workshop formed a combination of three groups, to get rid of superstition, emancipate the mind, slamming the technological innovations, and finally test the successful multi-wire rolling new technology. Take advantage of this new craft, not only