用冷硬树脂砂试制镁合金铸型的工艺尝试  

Technical Trial of the Cold Hardening Resin Sand in the Casting of Magnesium Alloy

作　　者：韩佐英[1] 单志发[1] 张家裕[1] 

机构地区：[1]西北工业大学

出　　处：《热加工工艺》1990年第3期23-25,共3页Hot Working Technology

摘　　要：本文针对镁合金用冷硬树脂型砂,提出了几种防燃附加物的选配和用量;通过控制树脂加入量,改善型砂的溃散性;采用两砂造型以简化造型工艺、节约冷硬树脂砂用量;结合镁合金机匣铸件特点,采用冷铁内移和冒口外调等工艺措施,达到使铸件精确美观。This paper elucidates the use of the cold hardening resin sand in the casting of magnesium alloy, and puts forward several combustion protective ahents and their proportionings in the sand.On the other hand the dispersivity of the sand can be improved by controlling the content of resin, and molding process can be simplified and the cold hardening resin sand can be saved by twin-sand molding, and the precision and smoothness of the casting can be improved as well.

关 键 词：冷硬树脂砂 镁合金铸型 造型工艺 

分 类 号：TG242[金属学及工艺—铸造]