球化合金和孕育方法对GhMoRct球墨铸铁组织及性能的影响
구화합금화잉육방법대GhMoRct구묵주철조직급성능적영향
Effect of Inoculant Alloy and Inoculation Method on Structure and Properties GhMoRct Ductile Cast Iron
  • 万方数据
    铸造 주조
    FOUNDRY
    2010年 2期 149-152,156 ,共5页

    程武超%赵新武%党波涛%白广跃

    정무초%조신무%당파도%백엄약

    球墨铸铁%球化合金%孕育%碳当量%铸态珠光体%显微缩松%力学性能 毬墨鑄鐵%毬化閤金%孕育%碳噹量%鑄態珠光體%顯微縮鬆%力學性能
    구묵주철%구화합금%잉육%탄당량%주태주광체%현미축송%역학성능
    ductile iron%inoculant alloy%inoculation%carbon equivalent%as-cast pearlite%microshrink-age%mechanical properties
    采用两种不同的球化合金对GHMoRct球墨铸铁进行球化处理,合理配制炉料,用长效复合孕育剂随流孕育;运用均衡凝固技术,调整合适的CE,利用石墨化膨胀产生的自补缩效果消除显微缩松,生产出了基体组织和力学性能都符合技术要求的产品.
    채용량충불동적구화합금대GHMoRct구묵주철진행구화처리,합리배제로료,용장효복합잉육제수류잉육;운용균형응고기술,조정합괄적CE,이용석묵화팽창산생적자보축효과소제현미축송,생산출료기체조직화역학성능도부합기술요구적산품.
    Two different kinds of inoculant alloy were used to spheroidize GHMoRct (QTRSi4Mo1) ductile iron, and the reasonable furnace charge as well as metal-stream inoculation with long-acting compound inoculant were employed. By means of equilibrium solidification technology, appropriate CE was obtained, and so the microscopic porosity can be eliminated by self-feeding effect produced by graphitizing expansion. Finally the qualified products, whose matrix structure and mechanical properties meet the specification, were gained.
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