钛合金熔模铸造型壳用水基面层氧化锆浆料的制备  

Preparation of Water-Based Surface Slurry with ZrO_2 Powders for Titanium Alloy Investment Casting Shell

作　　者：李婷[1] 姚正军[1] 魏东博[1] 周文斌[1] 葛伟 赵瑞晋 吴昌辉 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京211100 [2]南京宝泰特种材料有限公司,南京211100

出　　处：《机械工程材料》2013年第10期29-33,共5页Materials For Mechanical Engineering

摘　　要：开发了一种高质量钛合金熔模铸造型壳用水基面层浆料制备工艺，并研究了配料顺序、搅拌转速及粉液比对浆料、型壳性能的影响。结果表明：当浆料粉液比为5．0～5．5g·mL^-1，搅拌转速为40-50r·min^-1，并且按照锆溶胶、添加剂、ZrO2粉的加料顺序配置浆料时，浆料及型壳的综合性能最为优异，此时浆料的黏度为30-35s，获得的型壳表面粗糙度低于2．0μm、室温抗弯强度在4．0MPa左右。A preparation process for high quality water-based surface slurry for titanium alloy investment casting shell was developed and the effects of ratio of powder to liquid, preparation order, stirring speed on the properties of slurry and shell were studied. ＂][＇he result shows that the best overall performance of slurry and shell, viscosity of slurry in 30--35 s, surface roughness less than 2.0 μm and bending strength around 4. 0 MPa, were given when the ratio of powder to liquid was controlled between 5.0 to 5.5 g · mL^-1, stirring speed was in 40- 50 r ·min ^-1 with the preparation order of zirconium sol, additive, ZrO2 powder.

关 键 词：钛合金 熔模铸造型壳 浆料 粉液比 

分 类 号：TG249.5[机械工程—精密仪器及机械]