铸造2011，Vol.60Issue(11)：1141-1144,4.
高铬铸铁热电偶保护管的铸造工艺
Casting Technology for Thermocouple Protection Tubes of High Chrome Cast Iron
摘要
Abstract
Thermocouple protection tubes of high chrome cast iron with good surface finish and suitable for mass production have been successfully made by investment casting process. The advantages and disadvantages of core tube (rod) of stainless steel, graphite and quartz tubes were analyzed and results show that protection tubes with quartz core rod have smooth surface, low cost, high process yield. The hardness of protection tube is HRC 58.7. The pyramidal shape carbides were found in the microstructure. A large number of compounds (Fe,Cr)7C3 were found by X-ray diffraction, which can improve the wear resistance of castings.关键词
高铬铸铁/热电偶保护管/熔模铸造/组织性能Key words
high chrome cast iron/ thermocouple protection tube/ investment casting/ microstructure property分类
矿业与冶金引用本文复制引用
薛志勇,陈雨峰,马明珠,张小燕..高铬铸铁热电偶保护管的铸造工艺[J].铸造,2011,60(11):1141-1144,4.基金项目
中央高校基本科研业务费专项资金(项目编号09MG27). （项目编号09MG27）
