在抓纲治国大好形势的鼓午下,建华铸钢厂工人、技术人员和清华大学教师,在推广石蜡、聚乙烯蜡模料(分子量小于5000的低分子聚乙烯一般称聚乙烯蜡)的基础上,为提高其性能,在国内外一些有关褐煤蜡资料的启发下,又大胆地加入少量粗制褐煤蜡,经二个多月的试验,初步试验成功一种由8％聚乙烯蜡,8％褐煤蜡、84％石蜡(64℃)组成的新型中温模料(以下简称3# Under the auspices of a good grasp of the rule of the country, the workers, technicians and teachers of Tsinghua University in Jianhua Steel Plant are promoting the basis of paraffin wax and polyethylene wax (low molecular weight polyethylene with a molecular weight of less than 5000, commonly called polyethylene wax) , In order to improve its performance, some brown coal waxes at home and abroad are inspired to boldly add a small amount of crude montan wax. After more than two months’ trial, preliminary tests have been made successfully. An 8% polyethylene wax, 8 % Montan wax, 84% paraffin (64 ℃) composed of a new temperature model (hereinafter referred to as 3 #