获得抑制剂法生产低温高磁感取向硅钢的抑制剂控制研究进展  

Research Advances in Inhibitors Control of Low-temperature High Magnetic Induction Grain-oriented Silicon Steel Production with Acquired Inhibitor Method

作　　者：付兵[1,2] 项利[1] 仇圣桃[1] 成国光[2] 

机构地区：[1]中国钢研科技集团有限公司连铸技术国家工程研究中心,北京100081 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《过程工程学报》2014年第1期173-180,共8页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(编号:50934009)

摘　　要：综述了国内外大钢铁企业与研究机构采用获得抑制剂法生产低温高磁感取向硅钢的开发及应用情况,分析了以该法生产高磁感取向硅钢过程中抑制剂的控制技术,包括固有抑制剂组成方案、气态渗氮方式与工艺及高温退火工艺的制定.研究表明,固有抑制剂组成方案的设计思路大体一致,化合物抑制剂以AlN为主、硫化物为辅,同时添加少量Sn,Sb等单元素抑制剂,但组成元素含量存在一定差别;在脱碳退火后用NH3进行非平衡渗氮处理已成为气态渗氮的主要方式,但最佳方式仍未明确,具体选择需依据实际生产条件,相应脱碳及渗氮工艺的控制条件差别较大;高温退火工艺中升温制度差别不大,升温阶段退火气氛中N2含量的选择存在差别.此外,分析了抑制剂控制技术目前存在的关键问题,并指出了进一步的研究方向.The current application and exploitation on production of low-temperature high magnetic induction grain-oriented silicon steel with acquired inhibitor method at both iron and steel enterprises and research institutions in the world are reviewed. The control techniques of inhibitors, which include the composition design for inherent inhibitors, nitriding method and process, and secondary recrystallization annealing, are thoroughly analyzed and proposed. It is indicated that the design ideas for inherent inhibitors are basically identical. The main inhibitor is A1N, the auxiliary inhibitor is sulfide, and a small amount of elements can also be as the auxiliary inhibitor, such as Sn, Sb, etc. However, the content of elements consisting of inhibitors has some difference. Nitriding with NH3 after decarburization has become the main method currently, but the most appropriate selection of nitriding method, which depends on the actual production conditions, is still not definite. Meanwhile, the corresponding control conditions of nitriding and decarburization annealing have obvious differences. And there is no difference in two kinds of heating program used for secondary recrystallization annealing, but the selected N2 content in the annealing atmosphere has some difference. Finally, the key problems on the control techniques of inhibitors are analyzed, and the further research directions are pointed out.

关 键 词：抑制剂 高磁感取向硅钢 获得抑制剂法 ALN 渗氮 析出 

分 类 号：TG142.7[一般工业技术—材料科学与工程]