Smelting Process Optimization Practice for Cold Heading Steel 10B21

陈修君; 毕胜; 周伟基; 姚玉东; 王鑫

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Smelting Process Optimization Practice for Cold Heading Steel 10B21

更新时间：2026-01-21

- Smelting Process Optimization Practice for Cold Heading Steel 10B21
- Special Steel Vol. 43, Issue 4, Pages: 63-65(2022)
- 作者机构：
  
  1. 东北特殊钢集团股份有限公司总工办
  2. 东北特殊钢集团股份有限公司,大连,116000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：06 January 2022，
  
  Online First：19 August 2022，
  
  Published：19 August 2022
- 稿件说明：
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陈修君, 毕胜, 周伟基, et al. Smelting Process Optimization Practice for Cold Heading Steel 10B21[J]. Special Steel, 2022, 43(4): 63-65.
DOI：

陈修君, 毕胜, 周伟基, et al. Smelting Process Optimization Practice for Cold Heading Steel 10B21[J]. Special Steel, 2022, 43(4): 63-65. DOI：

摘要

针对10B21含硼钢(/%:0.18～0.23C

≤1.0Si

0.60～0.90Mn

≤0.025P

≤0.020S

≥0.015Alt

≥0.008B)盘条表面铁皮疤缺陷及连铸坯角部表面裂纹进行了分析

通过优化钢的成分控制(/%:0.020～0.050Alt

0.03～0.05Ti

≤0.0060N

0.000 8～0.0012B)提高拉速至2.3～2.4 m/min以保证铸坯过拉矫时温度≥980℃

采取将连铸二冷比水强度由原1.29 L/kg降至1.05 L/kg等措施

可以有效控制连铸坯角部表面裂纹的出现

轧制后的盘条表面铁皮疤缺陷率由原来的15%降到1%以下。

Abstract

According to analysis on the scab defects on the surface of 10B21 boron-containing steel (/% ：0.18 〜 0.23C

≤ l.0Si

0.60 ~0.90Mn

≤ 0.025P

≤ 0.020S

≥0.015 Alt

≥0.008B) wire rod and the surface cracks on the comers of continuous casting billet

by optimizing the composition control of steel (/% ：0.020 ~ 0.050Alt

0.03 〜0.05Ti

≤0.0060N

0.000 8 ~0.0012B)

increasing the drawing speed to 2.3 ~2.4 m/min to ensure the through stretching and straightening temperature of the slab ≥980 ℃；by reducing the specific water strength of the secondary cooling of continuous casting from original 1.29 L/kg to 1.05 L/kg

etc

that can effectively control the comer crack on the surface of continuous casting billet

the scale defect rate is declined from the original 15% to less than 1% after the roiled wire rod.

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