链条行业中的黑色金属冷挤压工艺的应用起源于70年代。主要用于成形精密滚子链条的滚子零件(图1)。在链条传动过程中。是以滚子与链轮齿面不断的啮合传递动力。因滚子主要承受挤压、冲击以及摩擦的作用,所以提高滚子的机械性能显得十分重要。对滚子零件的成形,多数工厂沿用拉深工艺。随着新技术、新工艺、新设备的引进和推广,目前有些工厂应用冷挤压工艺加工滚子。实践证明,经冷挤压加工后滚子的机械性能可大大提高。就 The use of ferrous metal cold extrusion in the chain industry originated in the 1970s. Mainly used for forming precision roller chain roller parts (Figure 1). In the chain drive process. Roller and sprocket tooth surface is constantly engaged transmission power. Due to the roller to withstand the main squeeze, impact and friction role, so to improve the mechanical properties of the roller is very important. Rolling part of the forming, most factories use deep drawing process. With the introduction of new technologies, new processes and new equipment, some factories currently use cold-extrusion processes to process the rollers. Practice has proved that the mechanical properties of the roller after cold extrusion processing can be greatly enhanced. on