The self-compensated contraction caused by graphite dilatation in the solidification process of nodular cast iron makes casting with less flow-off or casting without flow-off possible.
利用球墨铸铁凝固过程中的石墨化膨胀，进行自身补缩，可以实现少胃口或无冒口铸造。
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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