China Mechanical Engineering ›› 2022, Vol. 33 ›› Issue (08): 986-992.DOI: 10.3969/j.issn.1004-132X.2022.08.014

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Effect of Cooling Processes of Hot Dip Galvanizing on C-warped Strip and Its Optimization Technology#br#

QIAN Sheng1,2;Lin Wei1;HU Wantong1;BAI Zhenhua1,3    

  1. 1.National Cold Rolling Strip Equipment and Process Engineering Technology Research Center,Yanshan University,Qinhuangdao,Hebei,066004
    2.College of Mechanical and Electrical Engineering,Huangshan University,Huangshan,Anhui,245041
    3.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,Hebei,066004
  • Online:2022-04-25 Published:2022-05-19

热镀锌冷却过程对C翘带钢影响及其优化技术

钱胜1,2;林威1;胡万通1;白振华1,3   

  1. 1.燕山大学国家冷轧板带装备及工艺工程技术研究中心,秦皇岛,066004
    2.黄山学院机电工程学院,黄山,245041 3.燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛,066004
  • 通讯作者: 白振华(通信作者),男,1975年生,教授、博士研究生导师。研究方向为机械设计及自动化、轧钢设备及工艺、板形控制及自动化。获国家科技进步一等奖1项、省部级科技进步一等奖3项、省部级科技进步二等奖3项、省部级科技发明二等奖2项、省部级科技进步三等奖4项。出版专著2部,发表论文80余篇。E-mail:bai_zhenhua@aliyun.com。
  • 作者简介:钱胜,男,1984年生,博士研究生、讲师。研究方向为轧钢设备与工艺、连续退火工艺与设备。发表论文6篇。E-mail:nds12121@163.com。
  • 基金资助:
    中央引导地方科技发展资金(206Z1004G);
    唐山市科技计划(20140209C)

Abstract: In order to solve the problems of uneven coating on steel strip surfaces, which was caused by the C-warped strip in a continuous annealing processes of hot-dip galvanizing unit, the influence mechanism of core technology in the cooling processes of C-warped defects was studied. The key process models, such as nozzle cooling model and actual vertical distance distribution model between cooling nozzle and steel strip, were established respectively. The C-warping influence model with warping inhibition rate and warping control sensitivity as quantitative indexes were proposed. And then, a comprehensive optimization method for complete key process parameters of the fan was established, and was realized to cooling control of refined partition of steel strips. At last, the method was applied to the productions of a hot dip galvanizing unit. The results show that the warping degree of the steel strips at the outlet of the unit is effectively reduced.

Key words: hot dip galvanizing, influence for C-shaped warp defect, warping inhibition rate, warp control sensitivity

摘要: 针对热镀锌机组连续退火过程中带钢C翘导致镀层不均的问题,研究了热镀锌冷却过程核心工艺对带钢C翘板形的影响机理,建立了喷嘴冷却模型、喷嘴与带钢实际垂直距离分布模型等关键工艺模型,提出以翘曲抑制率、翘曲控制灵敏度为量化指标的C翘影响模型,给出了完整的风机关键工艺参数综合优化方法,实现了带钢精细化分区冷却控制。某热镀锌机组的应用表明该方法可有效降低机组出口带材翘曲程度。

关键词: 热镀锌, C翘影响, 翘曲抑制率, 翘曲控制灵敏度

CLC Number: