熔模精密铸造用陶瓷型壳脱蜡开裂研究及解决方法  

Research and Solution on Crack of Ceramic Shell Mold During the Dewax in Investment Casting

作　　者：曾洪[1] 伍林[1] 张松泉[1] 杨照宏[1] 巩秀芳[1] 杨功显[1] 

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

出　　处：《东方汽轮机》2017年第4期57-59,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：文章介绍了一种解决陶瓷型壳开裂的方法,包括采用陶瓷型壳制作工艺,制得一定厚度的陶瓷型壳;在陶瓷型壳容易出现裂纹部位的陶瓷型壳外表面沿常见裂纹方向覆盖一定厚度的蜡片;将陶瓷型壳放入脱蜡设备中,采用高温高压水蒸汽进行脱蜡。该方法可以有效消除型壳在脱蜡过程中产生裂纹。This paper introduces the solution to crack of ceramic shell mold during dewax in investment casting, including making ceramic shell mold with a certain thickness by using the ceramic shell making process, a wax sheet covered with a certain thickness on the outer surface of the ceramic shell which is prone to cracks, and dewaxing in the autoclave with high temperature and high pressure steam. This method can eliminate the crack effectively.

关 键 词：熔模精密铸造 陶瓷型壳 开裂 蜡片 

分 类 号：TQ174[化学工程—陶瓷工业]