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一、前言冷滚轧螺纹是一种新的高效率的螺纹加工工艺。由一对装在轧丝机上的滚丝模对工件施加压力,使工件产生塑性变形,进而就能加工出各种规格的螺纹。这项新工艺我厂从一九五七年就开始试验。经过十几年的实践,模索出了一些经验。先后制造出40吨、80吨和120吨的螺纹轧丝机(均自行设计);轧制螺纹从三角(尖牙)螺纹发展到梯形螺纹;轧制螺纹的材料有碳钢、合金钢和不锈钢。轧制出的螺纹光洁度可达8,精度可达2级。
I. Introduction Cold rolling thread is a new high-efficiency thread processing. A pair of rolling dies mounted on the rolling machine exert pressure on the workpiece to cause plastic deformation of the workpiece, which in turn can produce a variety of threads. The new craft started its experiment in 1957. After more than ten years of practice, the model came out with some experience. Has produced 40 tons, 80 tons and 120 tons of thread rolling machine (both designed); rolling thread from the triangle (canine) thread to the trapezoidal thread; rolled thread materials are carbon steel, alloy steel and stainless steel . Rolled thread finish up to 8, accuracy up to 2 levels.