Si_3N_4用于400MPa高强钢筋的工艺研究  

Experimental investigation on application of Si_3N_4 to producing 400 MPa reinforcing bar steel

作　　者：王厚昕[1] 李正邦[2] 

机构地区：[1]中信微合金化技术中心,北京100004 [2]钢铁研究总院冶金工艺研究所,北京100081

出　　处：《材料与冶金学报》2007年第3期180-183,187,共5页Journal of Materials and Metallurgy

基　　金：国家自然科学基金资助项目(50574032)

摘　　要：热轧400 MPa高强钢筋(HRB400)是钢铁产业政策中重点推广的产品.本试验通过3种试验方案,系统研究了Si3N4作为增氮剂用于生产V微合金化Ⅲ级钢筋的可行性.结果表明采用Si3N4和FeV的加入量分别为0.5 kg/t和0.6 kg/t,完全可以达到甚至超过采用加入0.5 kg/tVN时的合理V,N配比,且钢筋性能优良稳定,是生产HRB400Ⅲ级钢筋的一种新合金化工艺..HRB400 （400MPa） is a hot rolled ribbed bar with high strength, which is emphatically applied to construction according to the national Iron ＆ Steel industry policy. Three test schemes was carried out to validate the feasibility of applying Si3 N4 as nitrogen addition to producing V - alloyed HRB400. The results showed that it is a better feasible process to apply Si3 N4 and FeV to producing HRB400 reinforcing bar steel than using VN alloying. The addition of 0.5 kg/t Si3 N4 and 0. 6 kg/t FeV is the best proportion for making reinforcing bars with good properties.

关 键 词：HRB400 微合金化 钢筋 SI3N4 

分 类 号：TF724[冶金工程—钢铁冶金]