A miniature electromagnetic valve is also used to control the flow-off. 微型电磁阀可快速控制水流的通断。
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。