【摘要】 挤压铸造的压力、保压时间和压下速度是影响高速钢轧辊缩孔的重要因素。采用浇注温度 14 0 0 14 5 0℃、压力15 0MPa、保压时间 12 0 15 0s ,压下速度 14 16mm/s ,可获得组织致密、无偏析、加工量少的高速钢轧辊。更多还原

【Abstract】 The effects of extrusion casting process on the properties of HSS roll are researched,pressure,pressing time and pressing speed are three important factors affecting shrinkage cavity,as pouring temperature is 1400~1450℃,pressure is 150MPa,pressing time is 120~150s,pressing speed is 14~16mm/s,HSS roll having compact structure,no segregation and small working allowance is obtained .更多还原