SWRH82B高碳钢热轧盘条心部组织控制

doi:10.13251/j.issn.0254-6051.2024.03.017

金属热处理 ›› 2024, Vol. 49 ›› Issue (3): 103-107.DOI: 10.13251/j.issn.0254-6051.2024.03.017

SWRH82B高碳钢热轧盘条心部组织控制

王金涛, 沈奎, 李战卫, 张宇

江苏省(沙钢)钢铁研究院, 江苏张家港 215625

收稿日期:2023-09-01 修回日期:2024-01-22 出版日期:2024-03-25 发布日期:2024-04-24
通讯作者: 沈奎,高级工程师,硕士,E-mail:shenkui2004@163.com
作者简介:王金涛(1994—),女,助理工程师,硕士,主要研究方向为钢铁材料组织与性能开发,E-mail:wangjt-iris@shasteel.cn。

Control of core microstructure in hot rolled SWRH82B high carbon steel wire rod

Wang Jintao, Shen Kui, Li Zhanwei, Zhang Yu

Institute of Research of Iron & Steel, Shasteel, Zhangjiagang Jiangsu 215625, China

Received:2023-09-01 Revised:2024-01-22 Online:2024-03-25 Published:2024-04-24

摘要/Abstract

摘要： 研究了不同吐丝温度以及不同水箱水量分布高-中-低、高-低-高对SWRH82B高碳钢盘条组织和性能的影响。结果表明,将吐丝温度提高到910±10 ℃,水箱水量按高-低-高分布使盘条的心表温差由18 ℃提升到30 ℃,提高心部冷却速度,降低网状渗碳体的产生,使网状渗碳体检出率由70%降低至5%,网状渗碳体级别由E级降为C级,盘条1/4直径位置处索氏体片层间距由153 nm降为138 nm,盘条的抗拉强度由1174 MPa提高至1187 MPa,从Ø6.5 mm到Ø2.1 mm的连续拉拔断丝率由9次/100 t降至1次/100 t,有效改善了热轧盘条的拉拔性能。

关键词: 高碳钢, 盘条, 网状渗碳体, 轧制工艺, 拉拔性能

Abstract: Effects of different spinning temperatures and different water tank water amount distributions (high-medium-low, high-low-high) on the microstructure and properties of SWRH82B high carbon steel wire rod were investigated. The results show that when the spinning temperature is increased to 910±10 ℃ and the water in the water tank is distributed according to high-low-high, the temperature difference between the core and the surface of the wire rod increases from 18 ℃ to 30 ℃, the cooling rate of the core of the wire rod is improved, the formation of network cementite is reduced, the detection rate of network cementite is reduced from 70% to 5%, and the grade of network cementite is reduced from grade E to grade C. At the position of 1/4 diameter of wire rod, the lamellar spacing of the sorbite decreases from 153 nm to 138 nm, and the tensile strength of wire rod increases from 1174 MPa to 1187 MPa. For continuous drawing the rod from Ø6.5 mm to Ø2.1 mm, the breaking rate is reduced from 9 times /100 t to 1 time /100 t, which effectively improves the drawing performance of hot rolled wire rod.

Key words: high carbon steel, wire rod, network cementite, rolling process, drawing properties

中图分类号:

TG142.1

王金涛, 沈奎, 李战卫, 张宇. SWRH82B高碳钢热轧盘条心部组织控制[J]. 金属热处理, 2024, 49(3): 103-107.

Wang Jintao, Shen Kui, Li Zhanwei, Zhang Yu. Control of core microstructure in hot rolled SWRH82B high carbon steel wire rod[J]. Heat Treatment of Metals, 2024, 49(3): 103-107.

参考文献

[1]秦树超, 黄翠环, 赵昊乾, 等. SWRH82B高碳钢盘条断面收缩率低的机理分析[J]. 金属热处理, 2018, 43(10): 243-246.
Qin Shuchao, Huang Cuihuan, Zhao Haoqian, et al. Mechanism analysis of low percentage of area reduction of SWRH82B high carbon steel wire rod[J]. Heat Treatment of Metals, 2018, 43(10): 243-246.
[2]Liao L L, Wei H, Li L Z, et al. Causes and control mechanism of abnormal structure in the center of SWRH82B wire-rod-steel[J]. Materials Science Forum, 2019, 944(1): 294-302.
[3]沈奎, 麻晗, 孙国才, 等. 过共析钢碳含量对晶界渗碳体的影响[J]. 热加工工艺, 2022, 51(12): 133-137.
Shen Kui, Ma Han, Sun Guocai, et al. Effect of carbon content on grain boundary cementite of hypereutectoid steel[J]. Hot Working Technology, 2022, 51(12): 133-137.
[4]Wei F, Zhang T, Xu L, et al. Study of phase transformation behavior of SWRH82B high-carbon steel and its abnormal core structure[J]. Materials Research Express, 2019, 6(10): 1-13.
[5]李平, 王雷, 周青峰, 等. 82B中心网状渗碳体产生原因及改善方法[J]. 钢铁研究学报, 2014, 26(9): 33-36.
Li Ping, Wang Lei, Zhou Qingfeng, et al. Formation reasons and countermeasures of cementite network in the center of 82B wire rods[J]. Journal of Iron and Steel Research, 2014, 26(9): 33-36.
[6]周青峰, 王敏花, 马建超, 等. SWRH82B小方坯中心偏析的改善[J]. 上海金属, 2014, 36(1): 48-54.
Zhou Qingfeng, Wang Minhua, Ma Jianchao, et al. Improvement of central segregation in SWRH82B billets[J]. Shanghai Metals, 2014, 36(1): 48-54.
[7]王雷, 李月云, 胡磊, 等. 高碳钢盘条斯太尔摩冷却相变研究[J]. 热加工工艺, 2018, 47(22): 191-199.
Wang Lei, Li Yueyun, Hu Lei, et al. Study on phase transformation of high carbon steel wire rod during Stellmor cooling process[J]. Hot Working Technology, 2018, 47(22): 191-199.
[8]王忠伟, 花凌冬. 高速线材斯太尔摩线控冷工艺改进[J]. 金属制品, 2020, 46(5): 45-49.
Wang Zhongwei, Hua Lingdong. Improvement of high speed wire rod Stelmor line cooling process[J]. Metal Products, 2020, 46(5): 45-49.
[9]卢立华, 王雷, 麻晗. 82B中心网状渗碳体形成规律及影响因素[J]. 热加工工艺, 2015, 44(8): 97-99.
Lu Lihua, Wang Lei, Ma Han. Regularity and influence factors of cementite network in center of 82B wire rods[J]. Hot Working Technology, 2015, 44(8): 97-99.
[10]皇祝平, 李解, 周正东, 等. 82B盘条中心网状渗碳体形成原因及改善措施[J]. 金属制品, 2022, 48(2): 26-29.
Huang Zhuping, Li Jie, Zhou Zhengdong, et al. Formation reason and improvement measure of center network cementite in 82B wire rod[J]. Metal Products, 2022, 48(2): 26-29.
[11]李桂英, 姜世全. 82B盘条质量研究[J]. 金属制品, 2005, 31(3): 42-44.
Li Guiying, Jiang Shiquan. Investigation of 82B wire rod quality[J]. Metal Products, 2005, 31(3): 42-44.
[12]李长胜, 马志军, 王进, 等. 高碳82B线材控轧控冷工艺优化实践[J]. 山东冶金, 2014, 36(1): 20-21.
Li Changsheng, Ma Zhijun, Wang Jin, et al. Optimization practice on controlled rolling and controlled cooling process of high carbon 82B wire rod[J]. Shandong Metallurgy, 2014, 36(1): 20-21.
[13]洪树利. 帘线钢盘条索氏体片层间距控制生产实践[J]. 鞍钢技术, 2011(2): 56-58.
Hong Shuli. Production practice of controlling lamellar spacing of sorbite structure of cord steel coil[J]. Angang Technology, 2011(2): 56-58.
[14]沈奎, 廖舒纶, 于学森, 等. 减少帘线钢改判率的工艺实践[J]. 热加工工艺, 2015, 37(3): 66-69.
Shen Kui, Liao Shulun, Yu Xuesen, et al. Process practice in reducing commuted rate of tire cord steel[J]. Shanghai Metals, 2015, 37(3): 66-69.
[15]郝芳, 王福明, 金桂香, 等. 吐丝温度对82B高碳钢动态CCT曲线的影响[J]. 金属热处理, 2011, 36(12): 4-8.
Hao Fang, Wang Fuming, Jin Guixiang, et al. Effect of loop laying temperature on dynamic CCT curve of high carbon steel 82B[J]. Heat Treatment of Metals, 2011, 36(12): 4-8.

SWRH82B高碳钢热轧盘条心部组织控制

Control of core microstructure in hot rolled SWRH82B high carbon steel wire rod

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李月云, 王雷, 李建华, 张宇. 大规格SWRS82B钢盘条同圈抗拉强度波动原因分析及改善措施[J]. 金属热处理, 2024, 49(1): 273-278.
[2]	范振霞, 张育明, 董庆, 赵昊乾, 李亚硕, 魏巧灵. ER70S-6钢盘条冷拔断裂原因分析及工艺优化措施[J]. 金属热处理, 2023, 48(8): 272-275.
[3]	王明明, 马飞, 裴未迟, 李冬冬, 龙海洋, 纪宏超, 刘帅. 汽车用高强塑积中锰钢的研究进展[J]. 金属热处理, 2022, 47(9): 272-280.
[4]	高志喆, 陈小艳, 王永金, 苏盛睿, 陈俊豪, 李佳康, 陈正家. 热处理对复合铸造高铬高碳钢/碳钢耐磨材料微观组织及力学性能的影响[J]. 金属热处理, 2022, 47(8): 163-167.
[5]	卓城之, 高丽, 顾炜华, 雍岐龙, 陆忠. Nb-V微合金化高碳钢在弹性盖板针布用钢丝上的运用[J]. 金属热处理, 2022, 47(1): 69-72.
[6]	吉光, 高秀华, 龙金花. 微合金元素Nb对高碳合金钢动态再结晶行为的影响[J]. 金属热处理, 2021, 46(8): 26-29.
[7]	彭宁琦, 何航, 罗登, 范明, 李中平. 高强韧耐候桥梁钢Q500qENH的生产工艺[J]. 金属热处理, 2021, 46(8): 139-143.
[8]	杨晓伟, 陈焕德, 周云, 张宇. 轧制工艺对V-Nb微合金化HRB600E钢筋组织及性能的影响[J]. 金属热处理, 2021, 46(8): 150-155.
[9]	王海宾, 贾建平, 张朝磊, 卢伟永, 王建忠, 李娜. 大规格82B钢盘条的冬季时效行为[J]. 金属热处理, 2021, 46(4): 95-99.
[10]	万志健, 刘学华, 赵海, 江波, 邹强. 钒对高碳珠光体钢组织及拉伸性能的影响[J]. 金属热处理, 2021, 46(3): 140-145.
[11]	顾炜华, 卓城之, 陆忠, 高丽, 张永清, 雍岐龙. 碳含量对铌微合金化高碳钢制金属针布耐磨性的影响[J]. 金属热处理, 2021, 46(12): 72-75.
[12]	庞卓锐, 付立铭, 索忠源, 单爱党. 双相区轧制对铁素体/马氏体双相钢组织性能的影响[J]. 金属热处理, 2020, 45(9): 37-40.
[13]	闫士彩, 李颖. 退火温度对0Cr25Al5热轧态盘条钢组织及性能的影响[J]. 金属热处理, 2020, 45(9): 121-124.
[14]	笪光杰, 杨忠民, 王凯, 陈颖, 王慧敏, 李少华. 奥氏体化温度和冷却速率对含Nb高碳钢组织性能的影响[J]. 金属热处理, 2020, 45(6): 1-6.
[15]	董丽丽, 卢晓禹, 杨源远, 麻永林, 杨维宇. 短流程CSP和2250mm轧制生产50W600无取向硅钢组织及性能对比[J]. 金属热处理, 2020, 45(3): 119-121.