摘要
把热芯和壳芯砂加入膨润土型砂中研究了其对型砂性能的影响，并建议生产中应控制型砂中树脂对膨润土的含量。增加型砂中膨润土含量可减少树脂的不利影响。
Influence of resin core sand on the propertiss of bentonite molding sand is researched throughadding hot box core sand and shell core sand to bentonite molding sand,It is suggested that the ratio ofresin to bentonite be controlled in Foundry production。Increasing the amount of bentonite in molding sandcan decrease the harmful influence of resin and improve the properties of molding sand.
关键词
树脂芯砂
膨润土型砂
型砂
铸造
Resin core sand
Bentonite molding sand
Properties of molding sand
Influence
