预抽真空可控气氛罩式渗氮炉的设计及应用

李海东1，朱晓红1，宗国良2

Design and application of controlled atmosphere pre-vacuum bell-type nitriding furnace

Li Haidong1,Zhu Xiaohong1,Zong Guoliang2

金属热处理 . 2015, (4): 207 -209 . DOI: 10.13251/j.issn.0254-6051.2015.04.050