摘要
本文从测试酸催化的酚醛树脂砂的终强度入手,研究了数十种催化荆在树脂中的行为,寻找出一种评价催化剂催化效率的方法。首次提出了一系列酚醛树脂用新型催化剂,这类催化剂可消除树脂砂在混制过程中的刺激性气味及在浇注时的烟雾。
Various catelysts were investigated in this arti- cle in terms of the strength of phenolic resin bonded sand. The behaviour of the catalysts for the resins was discussed. A method of evaluation of the effi- ciency of the catalysts was proposed. Aseries of new kinds of phenolic catalysts were given firstly in this paper. They could eliminate the irritating odour during sand mix preparation and decrease smoke e- volved from phenolic resin bonded sand when pour- ing molten metals.
出处
《粘接》
CAS
1993年第4期20-22,共3页
Adhesion
关键词
酚醛树脂
催化剂
Phenolic Resin
Catalyst
CatalyticMechanism
