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根据用拉丝模孔型测量记录仪绘制的曲线,对国内外的拉丝模孔型进行剖析,分析其设计思想,认为:目前我国的拉丝模孔型基本是承袭了五十年代的设计理论而研磨制造的,其使用寿命短、更不适宜高速拉拔;而国外拉丝模的入口锥和工作锥加长,润滑锥适当减小,定径带平直,长度合理,工作锥与定径带交接面无过渡角或减到最小。
According to the curve drawn by the drawing die hole type measuring recorder, the drawing pattern of the drawing die at home and abroad is analyzed and the design idea is analyzed. It is considered that the die pattern of drawing die in our country basically inherits the design theory of the 1950s and grinds Manufactured, its service life is short, more unsuitable for high-speed drawing; and foreign drawing dies entrance cone and working cone longer, the appropriate reduction of lubrication cone, diameter and diameter straight, reasonable length, working cone and the diameter of the transfer surface No transition angle or minimum.