预应力钢绞线用大规格82B盘条冬季时效期的系统控制

doi:10.11896/cldb.18060134

材料导报

2019, Vol. 33

Issue (14): 2408-2412 https://doi.org/10.11896/cldb.18060134

金属与金属基复合材料

预应力钢绞线用大规格82B盘条冬季时效期的系统控制

方文¹, 王海宾², 张朝磊¹, 王宏斌², 马晓艺³

1 北京科技大学材料科学与工程学院,北京 100083;
2 河钢集团宣钢公司,宣化 075100;
3 青海大学机械工程学院,西宁 810016

System Control of Aging Period in Winter for Large Diameter 82B for Prestressing Stranded Wire

FANG Wen¹, WANG Haibin², ZHANG Chaolei¹, WANG Hongbin², MA Xiaoyi³

1 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083;
2 HBIS Group Co., Ltd., Xuansteel Company, Xuanhua 075100;
3 School of Mechanical Engineering, Qinghai University, Xining 810016

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摘要针对目前业界广泛存在的大规格82B时效期较长的问题,结合河钢集团宣钢公司高速线材生产线装备与控制实践,研究了Φ12.5 mm规格82B盘条冬季时效期系统控制。结果表明:通过控制加热炉加热段温度在1 060~1 080 ℃,精轧后1^#~4^#水冷箱水量分配比例调整为400∶350∶150∶100,控制相变后到集卷筒之间冷速不超过1.7 ℃/s,集卷小车到卸卷小车之间冷速不超过0.13 ℃/s,实现了冬季在环境温度为-12~-22 ℃的条件下,盘条下线7 d后即可在工业大生产中稳定进行冷拉拔加工的技术突破,冬季拉拔速度可由常规的4.5~5.5 m/s提高至6.0 m/s。

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关键词: 预应力钢绞线控轧控冷时效期拉拔速度

Abstract: The phenomenon of large diameter 82B wire rods have longer aging period is widespread in industry. The systematic control for aging period in winter of 82B wire rods with Φ12.5 mm was investigated by industrial mill trials in HBIS group Xuansteel company. The results show that: by controlling the heating temperature at 1 060—1 080 ℃ in the heating furnace, adjusting the distribution rate of water quantity between 1#—4# water block, controlling the cooling rate less than 1.7 ℃/s from the completion of phase transformation to coil collecting device and the cooling rate no more than 0.13 ℃/s between coil collection car and stripper car, the 82B wire rods (rolling off the assembly line 7 d) cold drawing process can be undertaken steadily in large industrial production when the drawing temperature lies at -12—-22 ℃ in winter, the drawing speed is improved from 4.5—5.5 m/s to 6.0 m/s.

Key words: prestressing stranded wire controlled rolling and cooling aging period drawing speed

发布日期: 2019-06-19

ZTFLH:

TG142.1

基金资助: 青海省基础研究计划项目(2017-ZJ-751)

通讯作者: zhangchaolei@ustb.edu.cn

作者简介: 方文,北京科技大学材料科学与工程专业硕士研究生。在张朝磊副教授指导下进行研究,目前主要研究领域为材料成形理论与组织性能控制。张朝磊,北京科技大学材料科学与工程学院副教授,入选青海省“高端创新人才千人计划”。2013年1月毕业于北京科技大学材料加工工程专业,获工学博士学位。毕业后留校工作至今,主要从事材料组织性能控制,先进钢铁材料成分组织设计、质量控制与应用技术等研究工作。在国内外期刊以第一作者发表论文30余篇,授权发明专利10余项。

引用本文:

方文, 王海宾, 张朝磊, 王宏斌, 马晓艺. 预应力钢绞线用大规格82B盘条冬季时效期的系统控制[J]. 材料导报, 2019, 33(14): 2408-2412.
FANG Wen, WANG Haibin, ZHANG Chaolei, WANG Hongbin, MA Xiaoyi. System Control of Aging Period in Winter for Large Diameter 82B for Prestressing Stranded Wire. Materials Reports, 2019, 33(14): 2408-2412.

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http://www.mater-rep.com/CN/10.11896/cldb.18060134 或 http://www.mater-rep.com/CN/Y2019/V33/I14/2408

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