Abstract
Cold drawing products obtained from preliminarily rolled sheets of HDPE, PP, POM, PC, ABS and PVC were studied on their elastic and thermal recovery, and secular change of dimension. The optimum amount of reduction in thickness in rolling, and effect of heat treatment, were made clear in order to attain the best qualities of cold drawing products. The cold drawing products obtained from preliminarily rolled sheet was found to have extremely good dimensional stability by low of reduction in thickness and cross rolling.
This cold drawing process was applied to make small cups and dishes, and good results were obtained.
