二氧化碳(CO_2)气硬树脂砂用促硬剂的研究  

Research on Oxyanion for CO_2 Gas Curing Resin Sand

作　　者：李润霞[1] 白彦华[2] 孙万柏[2] 

机构地区：[1]沈阳航空工业学院工程基础部 [2]沈阳工业大学

出　　处：《沈阳航空工业学院学报》1999年第4期27-30,共4页Journal of Shenyang Institute of Aeronautical Engineering

摘　　要：本文介绍了一种对碱性甲阶酚醛树脂有促硬作用的盐，在树脂中加入强碱和该促硬剂后，形成了稳定液态粘结剂，吹CO2气体硬化后可得到较高的即时抗压强度和24小时抗压终强度。In this paper, through a large number of experiments an alkaline phenolicresin with better binding function and a kind of oxyanion which can cause the resin to hardenare developed. When KOH and hardeners are added into the resin, the satble binder informed. Instant strength and the final strength of the samples are increased after CO2 ispassed.

关 键 词：气硬树脂砂 制芯 促硬剂 铸造 二氧化碳 

分 类 号：TG221.1[金属学及工艺—铸造]