Some batches of production showed that microstructure of nodular iron in investment casting can reach to 2 grade nodularization, 6 grade nodule size and 10% pearlite.
经批生产考核，精铸球铁铸件的金相组织可达到球化级别2级，石墨球大小6级，珠光体含量10 %的要求。
The production of light nodular graphite iron parts with high ductility in investment casting was expounded in all aspects including both technological analysis and processing control.
对熔模精密铸造高韧度球墨铸铁小件的生产，从工艺分析到生产过程的控制进行阐述。
The production of light nodular graphite iron parts with high ductility in investment casting was expounded in all aspects including both technological analysis and processing control.
对熔模精密铸造高韧度球墨铸铁小件的生产，从工艺分析到生产过程的控制进行阐述。
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