热塑性酚醛树脂覆膜砂的研究进展  

Research Advance of Novolak Type Phenolic Resin Coated Sand

作　　者：张伟民 任国平 秦升益 

机构地区：[1]北京仁创铸造有限公司,100085

出　　处：《高分子通报》2004年第3期99-105,共7页Polymer Bulletin

摘　　要：综述了生产热塑性酚醛树脂覆膜砂的原材料 ,混砂工艺 ,再生砂和理论进展等 ,并提出今后覆膜砂的发展方向。The present situation and the recent progress of novolak type phenolic resin coated sand used for shell moulding were reviewed,including raw material,mixing method,reclaimed resin coated sand and theoretic progress. The developing tendency was also discussed in this paper.

关 键 词：热塑性酚醛树脂 覆膜砂 混砂工艺 再生砂 添加剂 原砂 固化剂 壳型铸造工艺 

分 类 号：TG221[金属学及工艺—铸造]