α淀粉对机器造型黄壤土天然粘土砂性能的影响

Influence of α-Amylase on Natural Yellow Loam Clay-boned Sand in Machine Molding

为解决将黄壤土天然粘土型砂直接应用在机器造型上,有时出现成型困难、起模不完整、表面安定性差的问题。本文开展了附加物对黄壤土天然粘土砂机器造型性能影响的研究。结果表明,在黄壤土天然粘土砂中加入一定量的α淀粉,对黄壤土天然粘土砂的机器造型性能产生积极的影响。

To solve the problems of imperfect pattern,poorstability of surface,which result from natural clay sand being directly applied in machine molding,the research on influence of additives on the natural clay sand performance of machine molding of yellow loam clay-boned sand was launched.The results show that adding a certain amount of α-amylase into natural yellow loam clay-boned sand has a positive effect on the properties of the sand machine molding.