深拉深钢板用高分子涂膜的润滑性能研究

Research on the Lubrication Behavior of Macromolecule Film for Deep Drawing Steel Plate

近年来,我们研制成功一种高分子涂膜。为了评价其润滑性能,对低碳钢、不锈钢和铝板的拉深试验,均采用机油、氯化石蜡、高分子涂膜三种润滑剂。对比各项评价指标可以看出:高分子涂膜的润滑性能最佳。它不仅能提高极限拉深变形程度,而且能降低拉深力。同时,它还能有效防止粘结瘤的产生。因此,可获得壁厚减薄率小和优良表面质量的拉深件。使用高分子涂膜,可收到明显的技术、经济效果。

Of late years, we succeeded in developing a kind of macromolecule film. In order to estimate its lubrication behavior, the tests of drawing mild steel, stainless steel and aluminium sheet billets are lubricated with three kinds of lubricat: the machine oil, chlorinated paraffin and macromolecule film. Comparing all estimated indexes, it is seen that the lubrication behavior of macromolecule film is optimal. (?)ot Only can the macromolecule film raise limiting drawing deformation degree, but it also can reduce drawing pressure. At the same time, it can prevent producing seizing tumcur effectively yet. So a draw piece having a small reduction of wall thickness and good surface quality may be obtained. Make use of the macromolecule film, remarkable technologic and economic results may be achieved.