我厂从1965年开始试生产高磷耐磨铸铁机床铸件,现已用于生产六角车床、刨齿机、铣齿机、镗床、滚齿机上相对滑动的零件。铸件质量一般良好,耐磨性比一级铸铁提高近一倍。1975年采用高磷铸铁的铸件共九百多吨,单件重量从十几公斤到几吨,壁厚从1O毫米到18O毫米(表1)。 I plant from 1965 trial production of high-phosphorus wear-resistant cast iron machine tool castings, is now used in the production of hexagonal lathe, planing machine, milling machine, boring machine, hobbing machine relative sliding parts. Casting quality is generally good, wear resistance than the first grade castings to nearly double. In 1975 the use of high-phosphorus cast iron castings a total of 900 tons, a single weight from a dozen kilograms to several tons, wall thickness from 1O mm to 18O mm (Table 1).