帘线钢精炼工艺技术研究  

Study on Refining Technology of High Quality Cord Steel Production

作　　者：曾建华[1] 陈永[1] 王新华[2] 姜敏[2] 杨森祥 张敏[1] 潘红[1] 

机构地区：[1]攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000 [2]北京科技大学冶金与生态工程学院,北京100083 [3]攀钢集团攀枝花钢钒有限公司,四川攀枝花617062

出　　处：《钢铁钒钛》2015年第6期94-100,共7页Iron Steel Vanadium Titanium

摘　　要：针对高品质帘线钢对钢中夹杂物组分及钢液洁净度的严格要求,系统地开展了钢包顶渣组成和精炼工艺流程的研究。理论研究结果和生产实践表明,精炼过程将钢包顶渣二元碱度（CaO/SiO_2）控制在1.0左右,渣中Al_2O_3含量控制在6%~8%,可以将夹杂物基本控制在低熔点塑性区域;与De S-LD-LF-Ar-CC工艺相比,采用De SLD-LF-RH-CC生产工艺可以在实现夹杂物塑性化转变的同时进一步降低钢中T[O]、[N],提高钢液洁净度。所生产的帘线钢吨钢断丝率平均为0.47次/t,疲劳寿命在2万次以上。In order to meet the strict requirements of inclusion and cleanliness for high quality cord steel, top slag composition and refining process had been studied through predication and industrial practice. The results show that the inclusions can meet the requirements of plasticity at lower melting temperature when the tap slag basicity （CaO/SiO2） and A1203 content are controlled at about 1.0 and in the range of 6% - 8%, respectively. Compared with the process of DeS-LD-LF-Ar-CC, the process of DeS-LD-LF- RH-CC can lead to inclusion meeting requirements of plasticity and further reducing content of T[ O ] and [ N ] , and thus improve the cleanliness. The average wire broken ratio of cord steel products is 0.47 time per ton and the fatigue lifetimes reached over 20,000 cycles .

关 键 词：帘线钢 夹杂物 精炼工艺 精炼渣 

分 类 号：TF76[冶金工程—钢铁冶金] TF769