A new hot-top casting mold was explored based on the conventional hot-top casting, and low frequency electromagnetic field was applied in the process of casting.
在传统热顶铸造基础上，开发了一种新的热顶铸造结晶器，并在铸造过程中施加了低频电磁场。
Low pressure casting is the process of metal liquid filled in mould down-top in virtue of pressure of crucible.
低压铸造是利用坩锅内气压，将金属液体由下而上充填模具的过程。
On these basis, we have studied the new casting technique of the tank's engine top which poured by the electromagnetic pump associated with rational melting and purifying process.
在此基础上进行了以电磁泵充型为技术核心辅之以合理的铝液熔化、净化工艺的坦克发动机缸盖铸造新工艺研究。
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