中频感应电炉熔炼灰铸铁的工艺与质量控制

针对中频感应电炉熔炼灰铸铁的特点和电炉铁液的特性,分析了原材料选用、炉料配比、化学成分、增碳率、熔炼温度和孕育处理等对灰铸铁的强度等性能的影响,阐述了中频感应电炉熔炼灰铸铁铁液的工艺与质量控制及改进,提出高纯净度铁液对确保灰铸铁铸件高质量和高性能的重要性。结果表明,通过工艺改进,可以提高灰铸铁铸件的质量和性能、减少或消除铸造缺陷、降低废品率。

Melting technology and Quality Control of Gray Cast Iron in Intermediate Frequency Induction Furnace

According to the characteristics of medium frequency induction furnace melting gray cast iron and the characteristics of electric molten iron,the effects of raw materials selection,charge ratio,chemical composition,carbon rate,melting temperature and inoculation treatment on the strength and performance of gray cast iron were analyzed.The process,quality control and improvement of melting molten iron of gray cast iron in intermediate frequency induction furnace were described.The results show that the quality and performance of gray cast iron castings can be improved,the casting defects can be reduced or eliminated,and the reject rate can be reduced.