取向硅钢脱碳退火的试验研究  

Decarburizing Annealing of Grain Oriented Silicon Steel

作　　者：张晨[1] 项利[1] 董廷亮[1] 岳尔斌[1] 仇圣桃[1] 

机构地区：[1]先进钢铁流程及材料国家重点实验室,钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《钢铁研究学报》2009年第12期55-58,共4页Journal of Iron and Steel Research

基　　金：国家十一五科技支撑计划资助项目(2006BAE03A14)

摘　　要：通过取向硅钢脱碳退火的实验室研究,比较了炉内气氛、退火时间、水温对不同初始碳含量的取向硅钢脱碳效果的影响,结果表明:控制气氛中合理的PH2O/PH2比,适当延长退火时间,保持一定的水温,有助于改善最终的脱碳效果;初始碳含量为0.036%的取向硅钢,试验退火条件下均可获得良好的脱碳效果。初始碳含量为0.051%的取向硅钢,较优脱碳退火方案为:炉温825℃、气氛30%H2+70%N2(体积分数)、时间7 min、水温60℃。Through the experimental research on decarburizing annealing of grain oriented silicon steel, the influence of atmosphere, holding time and water temperature on decarburizing action of grain oriented silicon steels with different initial C content is analysised. The results show that controlling appropriate PH2O/PH2 ratio in the shielding gas atmosphere or extending the holding time properly is good for decarbonization. Grain oriented silicon steel with 0. 036 % initial C content can get good results under different conditions. As for steel with 0. 051 %initial C content, the best scheme for deearburizing annealing is： 825℃ for furnace temperature, 30%H2 ＋70%N2 for at- mosphere, 7 min for holding time and 60℃for water temperature.

关 键 词：取向硅钢 脱碳退火 碳含量 

分 类 号：TG161[金属学及工艺—热处理]