抗震钢筋钢LF吹氮气合金化工艺研究与应用  

STUDY AND APPLICATION OF LF BLOWING NITROGEN ALLOYING PROCESS FOR EARTHQUAKE RESISTANT STEEL

作　　者：刘晓峰 程殿 杜亚伟[2] 

机构地区：[1]重庆钢铁股份有限公司 [2]安阳钢铁集团有限责任公司

出　　处：《河南冶金》2017年第5期7-9,31,共4页Henan Metallurgy

摘　　要：吹氮气合金化是一种新型氮化合金技术。通过理论分析抗震钢筋钢钢水吹氮气合金化增氮的热力学和动力学影响因素,在重钢80 t LF进行吹氮气合金化工艺现场试验。提出了合理控制LF大流量吹氮气前的钢水温度、氮气流量、吹氮气时间等工艺控制措施。实践结果表明:抗震钢筋钢未加入任何含氮合金,经LF吹氮气合金化工艺后钢水增氮效果良好,氮含量稳定,钢材力学性能够满足国家标准。Blow-ing nitrogen alloying is a new kind of nitriding alloy technology. Through theoretical analysis of influen-cing factors of ther^nodynamics and kinetics of aseismic reinforcement steel grade blowing nitrogen alloying nitriding,by blo-wing nitrogen alloying process field test in CISC 80 t LF is carried out in Chongqing Steel. Nitrogen flow rate and blowing time before controlling LF large flow rate blowing nitrogen are put for^-ard. The practice results show that the nitrogen free alloy is not added to the anti-seismic steel ba r ,the nitrogen adding effect is good after the LF blowing nitrogen alloying process, and the nitrogen content is stable, the mechanical properties of the steel could meets the requirments of national standard as well.

关 键 词：抗震 钢筋钢 LF氮气 合金化 实践 

分 类 号：TF76[冶金工程—钢铁冶金]