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球墨铸铁生产技术的新进展 被引量:13

New progress of the manufacturing technology of ductile iron
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摘要 我国球墨铸铁生产技术近年来取得较大进展,包括高纯生铁在内的原辅材料商品化供应有了保障;球化、孕育处理工艺有较大改进;国内外出现了各种目前标准中没有的性能优异的新一代新牌号球铁,如硅强化高强度铁素体球铁、高强度高冲击韧性低温铁素体球铁、高强度高塑性珠光体球铁以及高镍奥氏体球铁;球铁件生产专业化程度、质量稳定性和一致性正在不断提高。我国球铁行业已具备生产高端球铁件基本条件,正处于由大变强关键时期。同时指出了存在问题和今后发展方向。 The ductile iron production technology of China has made great progress in recent years . That includes that high purity pig iron , raw and auxiliary materials supply is guaranteed , modulariza-tion and inoculation process is improved .there is an new kind of excellent ductile iron that has no u-niform standard , such as silicon reinforced high strength ferrite ductile iron , ferrite ductile iron with high strength and high toughness at low temperature , high strength and high plasticity austenitic duc-tile iron and high Ni austenitic ductile Iron , and specialization of ductile iron castings production , and quality consistency and stability are improved .Now China Is in a critical period from a big country to a stronger with a basic production condition of high quality ductile iron .At the same time , the paper points out the existing problems and future development direction .
出处 《黑龙江冶金》 2014年第5期3-13,共11页
关键词 球墨铸铁 生产技术 新进展 发展方向 ductile iron production technology new development development direction
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