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通过实例探讨了浇注时首股铁水流进入型腔后,在远离直浇道的底面和侧面产生气孔的原因。认为这类气孔与型砂种类无关,仅与首流铁水质量及浇注系统的设置有关,通过改进浇注系统和提高铁水质量可消除这类气孔
The causes of stomatal formation on the bottom and sides of the sprue were discussed through examples after the first strand of molten iron poured into the cavity during pouring. It is considered that such stomata have nothing to do with the type of sand, only with the first-class hot metal quality and the setting of the pouring system, such stomata can be eliminated by improving the pouring system and improving the hot metal quality