钛合金精密铸造氧化钇型壳制备工艺研究  

Preparation Technology of Investment Casting Cerium Oxide Mold Shell for Titanium Alloy

作　　者：范李鹏[1] 王宝兵[1,2] 冯港雯 姬艳硕 张旭亮 徐信锋[1] 顾辉旺 杨剑 FAN Lipeng;WANG Baobing;FENG Gangwen;JI Yanshuo;ZHANG Xuliang;XU Xinfeng;GU Huiwang;YANG Jian(Shanghai Spaceflight Precision Machinery Institute,Shanghai 201600,China;Shanghai Jiaotong University,School of Materials Science and Engineering,Shanghai 200240,China)

机构地区：[1]上海航天精密机械研究所,上海201600 [2]上海交通大学材料科学与工程学院,上海200240

出　　处：《铸造技术》2020年第10期946-948,949,共4页Foundry Technology

基　　金：上海市青年科技启明星计划资助项目(18QB1401400)。

摘　　要：采用碳酸锆铵为粘结剂,氧化钇级配粉为耐火材料制备钛合金精密铸造面层涂料,对型壳的面层和背层进行TG-DSC热分析,以优化型壳的焙烧工艺。对焙烧后的型壳形貌进行观察,测试了型壳强度,结果表明:氧化钇型壳的常温强度和高温残余强度满足钛合金熔模精密铸造工艺对型壳材料的强度要求。The surface coating of titanium alloy precision casting was prepared by using ammonium zirconium carbonate as binder and yttrium oxide gradation powder as refractory.TG-DSC thermal analysis was carried out on the surface and back layer of the shell to optimize the firing process of the shell.The morphology of the fired shell was observed and the strength of the fired shell was tested.The results show that the normal temperature and high temperature residual strength of yttria shell can meet the requirements of titanium alloy investment casting process.

关 键 词：钛合金 熔模铸造 氧化钇型壳 制备工艺 

分 类 号：TG249[金属学及工艺—铸造]