据《铸造》1995年第8期周霞、高钦报道:由于淀粉的粘结力低,作为砂芯主粘结剂使用一直被认为是不可能的。作者通过添加少量其他附加物,提高β淀粉粘结力,能够满足铸铁生产制芯的要求。研究在淀粉砂中添加膨润土、石墨粉和NaH_2PO_4,并研究了该淀粉砂的性能, According to “Casting” No.8 of 1995 Zhou Xia and Gao Qin reported that due to the low cohesion of starch, it has been considered impossible to use it as a sand core binder. By adding a small amount of other additives, the authors improve the β-starch cohesion to meet the requirements of cast iron production cores. Study the addition of bentonite, graphite powder and NaH 2 PO 4 in the starch sand, and studied the properties of the starch sand,