石膏型熔模精铸水性硅溶胶制壳工艺研究  

Shell Process of Plaster Mold Investment Casting Using Water-based Silica Sol

作　　者：万红[1] 熊博文[1,2] 徐志锋[1,2] 

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063 [2]南昌航空大学轻合金加工科学与技术国防学科重点实验室,江西南昌330063

出　　处：《铸造技术》2010年第12期1658-1659,共2页Foundry Technology

摘　　要：以石膏型熔模精铸生产金属工艺品为例,在制壳工艺中以水性硅溶胶代替水作为粘结剂来增强石膏型壳的透气性,提高石膏型壳的力学性能,有效地阻止了石膏型壳的开裂。以水性硅溶胶作为粘结剂的石膏型熔模精铸生产的铸件,形状完整、轮廓清晰、表面质量更好。Taking the producing of metal artworks by plaster mold investment casting as an example.The permeability and mechanical properties of shell were obvious improved,and the cracking was hindered effectively by substituting water-based binder for water during the fabrication of shell.

关 键 词：石膏型熔模精铸 水性硅溶胶 制壳工艺 

分 类 号：TG249.5[机械工程—精密仪器及机械]