浅谈热处理气源和金相标准中的某些问题  

Discuss on some problems in heat treatment gas sources and metallurgical standards

作　　者：李志义 李晓澎 陈希原 

机构地区：[1]重庆长江工业炉制造有限公司,重庆401329 [2]重庆海森机电设备开发公司,重庆400039

出　　处：《金属热处理》2008年第3期112-115,共4页Heat Treatment of Metals

摘　　要：提出了热处理中的天然气等气源和渗碳淬火件非马氏体组织、残留奥氏体及气体氮碳共渗件金相组织检查等标准中存在的问题,并提出了具体的修改建议。同时,提出了渗碳采用净化后的天然气、氨水、甲醇不但可提高产品质量,而且还具有提高渗碳速度、降低气源消耗和延长设备使用寿命等作用。This paper presents the problems of the standards of the heat treatment gas sources （ e. g. natural gas）, nonmartensite microstructure in the parts carburized and quenched, remaining austenite and gas nitrocarburizing microstructure and puts forward the revision proposal. Meanwhile, it also presents that the carburizing using purified natural gas ammonia water and methyl alcohol, methane can not only improve the quality of products, but also enhance the carburizing speed,reduce the gas consumption and extend the lifespan of equipment and so on.

关 键 词：天然气净化 甲醇净化 氨水净化 渗碳 氮碳共渗 浅腐蚀 

分 类 号：TG157[金属学及工艺—热处理]