论文部分内容阅读
研究了VRH法在聚丙烯酸盐为基的新型CO_2硬化树脂砂中的适用性及其空度、CO_2吹气量和吹气保持时间、粘结剂加入量对型芯强度的影响。
The applicability of VRH method to polyacrylate-based new type of CO 2 hardened resin sand was studied. The effects of void volume, blowing amount of CO 2, blowing holding time, and amount of binder on the strength of core were studied.