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球铁件形成皮下气孔的主要原因是铁水中的熔渣进入型腔 ,带入的气体成为析出核心 ,以及铁水与铸型反应产生的气体侵入铁水 ,因此防止措施应从减少熔渣产生和阻止熔渣进入型腔以及限制型砂水份等几方面着手。
The main reason for the formation of subcutaneous pores in the ductile iron is that the molten slag in the molten iron enters the cavity and the entrained gas becomes the core of the precipitation and the gas generated by the reaction between the molten iron and the mold intrudes into the molten iron. Therefore, prevention measures should reduce slag generation and prevent melting Slag into the cavity and limit the amount of sand and other aspects of water proceed.