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为了实现低温钢铁路支座在-50℃低温性能,确保产品强度与低温冲击性能均比ZG16Mn有所提高,通过材质成分设计,电弧炉冶炼、浇注工艺和铸件热处理工艺的制订,所生产的试件达到了产品要求的低温性能,并按策划好的工艺完成了生产订单。
In order to achieve the low-temperature performance of low-temperature steel rail bearing at -50 ℃, to ensure product strength and low temperature impact performance than ZG16Mn have improved, through the composition of the material composition, electric arc furnace smelting, pouring process and casting heat treatment process formulation, production test Pieces of products meet the requirements of low-temperature performance, and according to the planned process completed the production order.