气化模铸造碳钢铸件含碳量的变化  

A STUDY ON CARBON CONTENT CHANGES OF CARBON STEEL CASTINGS IN EVAPORATIVE PATTERN CASTING

作　　者：佟天夫[1] 葛毓立[1] 

机构地区：[1]内蒙古工业大学材料工程系

出　　处：《内蒙古工业大学学报（自然科学版）》1996年第1期45-49,共5页Journal of Inner Mongolia University of Technology：Natural Science Edition

摘　　要：本文讨论气化模铸钢件合碳量变化的规律，包括表面增碳、表面脱碳和体积增碳等。试验表明，选择透气性良好的涂料，涂料厚度≤１．０ｍｍ，负压度０．０３～０．０４ＭＰａ，可将表面和体积增碳减少到０．０２％以下。The carbon content changes of carbon steel castings in evaporative pattern casting,suchas carbon pickup,surface decarburization and volume carburization,are discussed in this paper. The experimental results indicate that, when coating permeability is fairly high andcoating thickness and vacuum degree are kept at the range of ≤1.0mm and 0. 03～0. 04MParespectively,the surface and volume carburization can be decreased to below 0. 02%.

关 键 词：气化模铸造 碳钢铸件 含碳量 

分 类 号：TG26[金属学及工艺—铸造]