复杂薄壁件熔模铸造制模工艺的研究  

Pattern Making Technology of Investment Casting for Complex Thin-Walled Part

作　　者：梁艳峰[1] 董晟全[1] 丁宏[1] 李高宏[1] 

机构地区：[1]西安工业大学材料与化工学院,陕西西安710032

出　　处：《铸造》2010年第8期800-802,807,共4页Foundry

摘　　要：研究了某型号大马力车辆发动机上的复杂薄壁件熔模铸造制模工艺。分析了铸件结构以及分型面和压型尺寸等因素,并设计制作出模具。综合考察了注蜡温度、注蜡速度、保压时间及冷却时间对蜡模质量的影响,获得了较优的制模工艺。在注蜡压力5MPa,保压时间25s,注蜡温度58℃,注蜡速度8mL/s,冷却时间10min时,所得到的蜡模质量良好。The experiment was carried out to study the pattern making technology of investment casting for complex thin-walled casting used in engine of high-powered vehicles.The die was designed and fabricated through analysis of casting structure,mold parting and pattern die size.The effects of four factors,such as the injection temperature,injection rate,dwell time and cooling time,on the wax pattern quality were analyzed.When injection rate is 8 mL/s,wax temperature is 58 ℃,wax injection pressure is 5 MPa,and dwell time is 25 s,a good wax pattern can be obtained after 10 min cooling.

关 键 词：复杂薄壁件 熔模铸造 制模工艺 蜡模质量 

分 类 号：TG249.5[机械工程—精密仪器及机械]