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我厂原来挤压各种螺丝坯和铆钉用的铆钉模(也叫挤压模),形状如图1,装在摩擦压力机上使用。这种铆钉模在使用和制造上存在着很多缺点:
I plant the original squeeze a variety of screw billet and rivet rivet die (also known as extrusion die), the shape shown in Figure 1, mounted on the friction press to use. This rivet die in use and manufacturing there are many shortcomings: