熔模精密铸造陶瓷型売面层脱落研究  

Research on the First Coat Spalling of Ceramic Shell Mold in Investment Casting

作　　者：曾洪[1] 赵代银[1] 张松泉[1] 伍林[1] 何建[1] 杨照宏[1] 巩秀芳[1] 杨功显[1] Zeng Hong;Zhao Daiyin;Zhang Songquan;Wu Lin;HeJian;Yang Zhaohong;Gong Xiufang;Yang Gongxian(State Key Laboratory of Long-life High Temperature Materials,Dongfang Turbine Co.,Ltd.,Deyang Sichuan,618000)

机构地区：[1]长寿命高温材料国家重点实验室东方汽轮机有限公司,四川德阳618000

出　　处：《东方汽轮机》2019年第4期53-55,共3页Dongfang Turbine

基　　金：四川省科技支撑计划项目(2014GZ0114先进大功率燃气轮机组关键技术研究及其产业化)。

摘　　要：文章提出了定量表征陶瓷型壳面层与过渡层结合强度的方法。分析了熔模精密铸造过程中引起陶瓷型壳面层脱落的两种原因:面层与过渡层结合强度低和施加于面层与过渡层的作用力超过结合强度。总结了解决陶瓷型壳面层脱落方法,增加面层与过渡层结合强度和减小施加于面层与过渡层的作用力。The test method of bonding strength between the first coat and the intermediate coat was proposed in this paper.The two factors leading to the first coat spalling of ceramic shell mold in investment casting were analyzed:the bonding strength between the first coat and the intermediate coat is low;the stress applied between the first coat and the intermediate coat is higher than the bonding strength.Two methods of preventing the first coat from spalling were summarized:increase the bonding strength between the first coat and the intermediate coat;decrease the stress applied between the first coat and the intermediate coat.

关 键 词：熔模精密铸造 陶瓷型壳 面层 脱落 

分 类 号：TQ174[化学工程—陶瓷工业]