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大断面重型球墨铸铁件电弧炉熔炼的生产实践
Practice of Electric Arc Furnace Melting of Large Section Heavy Ductile Iron Casting
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- DOI:
- 作者:
- 张亮亮 李克锐 卫东海 李增利 赵竟翔
ZHANG Liangliang;LI Kerui;WEI Donghai;LI Zengli;ZHAO Jingxiang
- 作者单位:
- 郑州机械研究所有限公司
Zhengzhou Research Insitute of Mechanical Engineering Co.,Ltd.,Zhengzhou 450001,China
- 关键词:
- 电弧炉 大断面 球墨铸铁 数值模拟
electric arc furnace heavy-section ductile iron casting numerical simulation
- 摘要:
- 介绍了采用电弧炉生产大断面球墨铸铁件的铸造工艺及生产过程,通过铸造过程数值模拟软件预测分析了凝固时间和铸造缺陷,确定了冷铁尺寸及布置。结果表明,采用高纯生铁、废钢等优质纯净的原材料、严格控制铁液温度和化学成分、合理的球化处理和强化孕育等技术措施,获得组织和性能符合要求的大断面球墨铸铁铸件。
The casting technology and production process of large section ductile iron produced by electric arc furnace are introduced.The solidification time and casting defects were predicted and analyzed by numerical simulation software of casting process.Determine the size and layout of the chills.The results show that the large-section ductile iron castings with satisfactory microstructure and performance can be obtained by using high purity raw materials such as pig iron and scrap steel,strict control of temperature and chemical composition of molten iron,reasonable spheroidization treatment and strengthened inoculation.