Analysis on Sticking Defect of CSP Cold Rolled Steel Sheet Annealing in Bell Type Annealing Furnace

Special Steel ›› 2007, Vol. 28 ›› Issue (5): 56-57.

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Analysis on Sticking Defect of CSP Cold Rolled Steel Sheet Annealing in Bell Type Annealing Furnace

Ji Yunping¹ , Jin Zili¹ , Wang Quan² , Zhang Xiaoyan² , Ren Huiping¹

1. Material and Metallurgy School,Inner Mongolia University of Science and Technology,Baotou 014010;
2. Sheet Plant,Baotou Iron and Steel Co.,Ltd., Baotou 014010;

Received:2007-04-20 Online:2007-10-01 Published:2023-02-15

CSP冷轧薄板罩式退火过程粘结的分析和工艺改进

计云萍¹，金自力¹，王权²，张晓燕²，任慧平¹

1. 内蒙古科技大学材料与冶金学院，包头 014010;
2. 包钢薄板厂，包头 014010;

作者简介:计云萍(1972-)，女，硕士，讲师，内蒙古科技大学毕业，从事材料加工及组织性能研究.
基金资助:
内蒙古自治区科技厅攻关项目(基于CSP工艺的高附加值冷轧钢板的开发)

Abstract

Abstract: The mechanism and major effect factors for sticking of CSP 0.25~3.00 mm cold rolled sheet of steel SPCC (≤0. 10%C)during bell type hydrogen annealing process at Baotou Steel have been analyzed. The sticking defect rate of sheet obviously decreased by technology measures such as sclecting suitable coiling unit tension to avoid tension fluctuation; increasing coil and profile shape quality; annealing at 680 ℃ with low heating rate at 400～680 ℃,and cooling with process-furnace cooling to 560 ℃,air cooling to 380 ℃ then water cooling; and increasing H2 purity.

Key words: CSP Cold Rolling Sheet, Bell Type Fumace, Annealing, Sticking

摘要： 分析了包钢CSP工艺SPCC钢(≤0.10%C)0.25～3.00 mm冷轧薄板全氢罩式退火过程粘结的机理和主要影响因素。通过合理选择卷取单位张力,避免张力波动,提高卷形和板形质量;退火温度680℃,400～680℃采用慢速升温,冷却工艺为炉冷至560℃,空冷至380℃,水冷及采用提高H2的纯度等措施使粘结率显著降低。

关键词: CSP冷轧薄板, 罩式炉, 退火, 粘结

Ji Yunping , Jin Zili , Wang Quan , Zhang Xiaoyan , Ren Huiping. Analysis on Sticking Defect of CSP Cold Rolled Steel Sheet Annealing in Bell Type Annealing Furnace[J]. Special Steel, 2007, 28(5): 56-57.

计云萍, 金自力, 王权, 张晓燕, 任慧平. CSP冷轧薄板罩式退火过程粘结的分析和工艺改进[J]. 特殊钢, 2007, 28(5): 56-57.

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Analysis on Sticking Defect of CSP Cold Rolled Steel Sheet Annealing in Bell Type Annealing Furnace

CSP冷轧薄板罩式退火过程粘结的分析和工艺改进

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