CAJ | 학술논문

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。
아국구묵주철생산기술근년래취득교대진전，포괄고순생철재내적원보재료상품화공응유료보장；구화、잉육처리공예유교대개진；국내외출현료각충목전표준중몰유적성능우이적신일대신패호구철，여규강화고강도철소체구철、고강도고충격인성저온철소체구철、고강도고소성주광체구철이급고얼오씨체구철；구철건생산전업화정도、질량은정성화일치성정재불단제고。아국구철행업이구비생산고단구철건기본조건，정처우유대변강관건시기。동시지출료존재문제화금후발전방향。
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 .