硅溶胶型壳脱壳性能的改良方法  

Improved Methods for Silica Sol Mould Shelling Performance

作　　者：刘朝晖[1,2] 王强[1,2] 

机构地区：[1]井冈山大学,江西吉安343009 [2]吉安市仿生包装工程技术研究中心,江西吉安343009

出　　处：《热加工工艺》2013年第11期69-71,共3页Hot Working Technology

基　　金：江西省教育厅2012年度科技项目(GJJ12467);2012年江西省科技厅科技计划项目(20123BBJ70194)

摘　　要：硅溶胶制壳是当前国内外精密铸造行业的主流生产工艺。为了改善硅溶胶型壳的脱壳性能,采取控制硅溶胶二氧化硅的含量、用快干硅溶胶做粘接剂、改进制壳工艺、控制焙烧温度的方法,在保证型壳有足够的高温强度下,尽量降低残留强度、提高脱壳性。实践证明效果较好,能在行业内推广使用。Silica sol shell is the mainstream production process of precision casting industry in China and abroad. In order to improve the shelling performance, by controlling the content of sol silica, using quick-drying sol as adhesive and controlling the calcination temperature, to guarante the shell strength at high temperature, the residual strength can be decreased, and then the shelling performance can be improved. The production practices prove that it has good performance, which is suitable for the popularization and application.

关 键 词：型壳 脱壳性 硅溶胶 精密铸造 

分 类 号：TG249.5[机械工程—精密仪器及机械]