A Study on Static Recrystallization of Saw Steel 75Cr1 Based on CSP Process

宋娜娜; 鲍思前; 赵刚; 蔡珍; 徐洋; 黄祥斌

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A Study on Static Recrystallization of Saw Steel 75Cr1 Based on CSP Process

更新时间：2026-01-21

- A Study on Static Recrystallization of Saw Steel 75Cr1 Based on CSP Process
- Special Steel Vol. 38, Issue 5, Pages: 5-9(2017)
- 作者机构：
  
  1. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉,430081
  2. 武汉钢铁(集团)公司研究院,武汉,430080
- 作者简介：
- 基金信息：
- DOI：
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- Online First：08 July 2022，
  
  Published：08 July 2017
- 稿件说明：
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宋娜娜, 鲍思前, 赵刚, et al. A Study on Static Recrystallization of Saw Steel 75Cr1 Based on CSP Process[J]. Special Steel, 2017, 38(5): 5-9.
DOI：

宋娜娜, 鲍思前, 赵刚, et al. A Study on Static Recrystallization of Saw Steel 75Cr1 Based on CSP Process[J]. Special Steel, 2017, 38(5): 5-9. DOI：

摘要

试验用75Cr1钢（/%:0.76C

0.30Si

0.70Mn

0.45Cr

0.010P

0.003S）的CSP流程为150t BOF-LF-60mm板坯连铸-连轧。通过Thermecmastor-Z热模拟实验机对取自锯片钢75Cr1 60mm铸坯的试样进行了双道次热压缩实验

分析了温度（1000~1150℃）

变形量（0.1~0.22）

变形速率(0.1~10s

-1

)以及道次间隔时间（1~80s）对其静态再结晶的影响

并采用2%应力补偿计算了不同变形条件下的静态再结晶百分率

建立了基于CSP工艺锯片钢75Cr1静态再结晶动力学模型。利用VB编制模拟软件

结合现场生产工艺参数

预报CSP工艺生产75Cr1钢热轧过程中组织演变

得出75Cr1钢合适的精轧工艺-精轧人口温度1150℃

变形量0.22

应变速率1s

-1

道次间隔时间30s。

Abstract

The CSP flowsheet of tested steel 75Cr1 (/% : 0.76C

0.30Si

0.70Mn

0.45Cr

0.010P

0.003S) is 150t BOF-LF-60mm Slab Casting-Continuous Rolling. The test of double-pass hot deformation of sample taking from 60mm casting slab of steel 75Cr1 has been carried out by Thermecmastor-Z thermal simulator to analyze the effect of temperature (1000~1150°C )

deformation (0.1 ~0.22)

strain rate (0.1 ~ 10

-1

) and pass interval time ( 1~80s) on static recrystallization of steel. And static recrystallization fraction in different deformation conditions is calculated by using 2% stress compensation method

and the static recrystallization kinetic model of saw steel 75Cr1 based on CSP process is established. The evolution of structure of steel 75Cr1 in hot-rolling process of CSP flowsheet may

predict by VB simulation software combined with process parameters at situ. It is obtained that the suitable finishing rolling process parameters for steel 75Cr1 are finishing inlet temperature of steel 1150℃，deformation 0.22

strain rate 1s

-1

and pass interval time 30s.

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