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在拉延工作中,为了保証拉延的工件不致被擦伤或造成破裂,以及延长冲模的寿命,应該使用潤滑剂。优良的潤滑剂要具有最好的摩擦系数和良好的粘附性,而且还能在冲模和冲压材料之間形成坚实的薄膜。要滿足这些要求,单独使用某一种潤滑材料,是办不到的,所以要采用几种化工材料配制而成的潤滑剂。而这种潤滑剂对金属表面不会起化学作用,容易擦掉,价廉,并且滿足安全技术的要求。下面介紹几种实用的潤滑剂。一号拉延油的配制
In the drawing work, in order to ensure that the workpiece will not be pulled or scratches caused by rupture, and extend the life of the die, you should use lubricants. Excellent lubricant to have the best friction coefficient and good adhesion, but also in the die and stamping material to form a solid film. To meet these requirements, the use of a certain type of lubricating material alone is impossible, so the use of several chemical materials formulated lubricant. This lubricant will not play a chemical role on the metal surface, easy to wipe, cheap, and to meet the safety requirements. Here are some practical lubricants. Preparation of a drawing oil