过热温度与保温时间对短流程熔炼质量的影响
Effects of Overtemperature and Holding Time on Melt Quality in Short-cut Melting Process
李明弟1, 贾贵平2, 王志刚1, 王远成1
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作者单位:(1.山东建筑大学 材料工程学院,山东 济南 250101;2.山东中文集团 青州豪章铸造有限公司,山东 青州261310)
中文关键字:过热温度; 保温时间; 短流程; 熔炼
英文关键字:overtemperature; holding time; short-cut process; melting
中文摘要:根据短流程熔炼工艺特点,采用热分析、金相分析、断口分析和力学性能测试等手段,对短流程熔炼工艺的过热温度与保温时间对铁水质量的影响进行了实验研究。结果表明,短流程熔炼过热温度在1510~1540 ℃,保温时间10~15 min时,通过改变热力学和动力学条件,可以得到相对纯净的高质量的铁液,最大限度地消除高炉铁液的遗传因素影响。
英文摘要:According to the characteristics of short-cut melting process, the effects of overtemperature and holding time on iron melt quality were studied by thermal analysis, metallographic analysis, fracture analysis and mechanical property measurement. The results show that the relative purity and high quality iron liquid can be obtained by controlling thermodynamics and dynamics conditions when the overtemperature in short-cut melting process is in the range of 1510~1540 ℃ and holding time is in the range of 10~15 min, which can greatly eliminate the inheritance of blast furnace iron liquid.