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机床的普通丝杠一般用45钢制造,在正火或调质状态下使用,耐磨性差,寿命一般3—5年。机床大修时60%以上的丝杠要更换,每年全国要生产大量的丝杠备件,消耗数千吨钢材。因此,提高丝杠耐磨性,延长其使用寿命,是一个急待解决的问题。 据资料报道,西德从1966年开始对机床丝杠采用液体
Ordinary screw machine tool made of 45 steel, normalized or quenched and tempered condition, wear resistance is poor, life expectancy is generally 3-5 years. Machine overhaul when more than 60% of the screw to be replaced, the country each year to produce a large number of screw spare parts, consumption of thousands of tons of steel. Therefore, to improve the wear resistance of the screw, to extend its service life, is an urgent problem to be solved. According to reports, West Germany from 1966 on the use of liquid screw machine