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随着工农业生产的飞跃发展,为满足对滚动轴承不断增长的需要,沈阳地区一些生产、科研、教学单位三结合,利用稀土镁钼球墨铸铁制造轴承内外环。做出的几种型号的滚动轴承,分别在大车、小型拖拉机、汽车上进行实载试验,经过四个多月的运行,使用一直正常。一、铸造工艺(一)铁水化学成分的选择化学成分的选择,根据轴承本身工作条件对机械性能的要求和球墨铸铁轴承的铸造工艺、热处理工艺
With the rapid development of industrial and agricultural production, in order to meet the growing demand for rolling bearings, some production, scientific research and teaching units in Shenyang are combined to produce inner and outer rings of bearings using rare earth magnesium molybdenum nodular cast iron. Several models made of rolling bearings, respectively, in carts, small tractors, cars on-load test, after more than four months of operation, the use has been normal. First, the casting process (A) the choice of chemical composition of hot metal The choice of chemical composition, according to the bearing conditions of their own mechanical properties of the requirements and ductile iron castings casting process, heat treatment process