响应面分析法优化锆英粉陶瓷型真空干燥工艺  

Optimization of Vacuum Drying Parameters for Zr-based Ceramic Mold with Response Surface Methodology(RSM)

作　　者：张业明[1] 曾明[1] 胡丽[1] 刘新刚[1] 张聪正[1] 

机构地区：[1]西华大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2009年第11期1036-1038,共3页Special Casting & Nonferrous Alloys

摘　　要：采用胶态浇注成型技术和真空干燥方法制备表面无裂纹的锆英粉陶瓷铸型。通过统计试验设计的方法对陶瓷型真空干燥进行优化。采用单因素试验,对影响真空干燥工艺的真空度、真空干燥温度、真空干燥时间3因素进行考察。利用Box-Behnken设计对此3个主要因素的最佳水平进行进一步研究。结果表明,在真空度、真空干燥温度和真空干燥时间分别为0.06MPa、81℃和5h时,陶瓷型铸型的干燥收缩率和强度分别为0.686%和6.39MPa。Zr-based ceramic mold with surface crack free was prepared by the colloidal pouring forming technology and vacuum drying method.Vacuum drying parameters for ceramic mold were optimized by statistical experiment design.Vacuum,vacuum drying temperature and vacuum drying time influencing the processing were investigated by single factor experiment.The optimized processing parameters were presented by the Box-Behnken design.The drying shrinkage rate and compressive strength of the ceramic mold reach 0.686%,6.39MPa with 0.06MPa at 81℃ for 5 hours.

关 键 词：真空干燥 BOX-BEHNKEN设计 响应面分析法 收缩率 抗压强度 

分 类 号：TG249[金属学及工艺—铸造]