Effect of Soft Reduction and Cast Speed on Macrostructure and Centre C Segregation of 42CrMo Steel Φ195 mm Bar Rolled from 410 mm x 530 mm Cast Bloom

Special Steel ›› 2021, Vol. 42 ›› Issue (4): 35-38.

Special Issue: 连铸工艺

Previous Articles Next Articles

Effect of Soft Reduction and Cast Speed on Macrostructure and Centre C Segregation of 42CrMo Steel Φ195 mm Bar Rolled from 410 mm x 530 mm Cast Bloom

Zhang Yue^1,2, Lii Zean³, Ma Jianyi^1,2, Zhong Qian⁴, Wang Zhanzhong^{1 ,2},Peng Feng^1,2

1. Steel Research Institute, Daye Special Steel Co Ltd, Huangshi 435001;
2. High Quality Special Steel Key Laboratory of Hubei, Daye Special Steel Co Ltd, Huangshi 435001;
3. Huanggang Normal University, School of Electromechanical and Automobile Engineering, Huanggang 438001；
4. Converter Plant, Daye Special Steel Co Ltd, Huangshi 435001;

Received:2020-12-17 Online:2021-07-15 Published:2022-03-09

轻压下和拉速对42CrMo钢410 mm x 530 mm铸坯轧成Φ195 mm材的低倍和中心C偏析的影响

张越^1,2，吕泽安³，马建祎^1,2，钟骞⁴，王占忠^1,2，彭峰^1,2

1. 大冶特殊钢有限公司棒材研究所，黄石435001 ；
2. 大冶特殊钢有限公司高品质特殊钢湖北省重点实验室，黄石435001；
3. 黄冈师范学院机电与汽车工程学院，黄冈438001 ；
4. 大冶特殊钢有限公司转炉厂，黄石435001；

作者简介:张越(1987-)，男，工程师，2010年武汉科技大学(本科)毕业，新产品开发和研究。

Abstract

Abstract: The effects of soft reduction (0 ~ 8 mm) and casting speed (0.42 ~ 0.49 m/min) of cast bloom on macrostructure and segregation of 42CrMo steel Φ195 mm rolled product are tested. The results show at present process condition that when the superheat degree of 42CrMo steel is controlled at 20 ~ 30℃ with secondary cooling specific water content 0.3 L/kg, mold and end electromagnetic stirring 100 A/l.5 Hz and 400 A/8 Hz, the casting speed 0. 49 m/min and the total soft reduction 6 ~ 8 mm, the internal quality of 42CrMo steel rolled product can be efiectively improved.

摘要： 对比试验了铸坯的轻压下量(0～8 mm)及拉速(0.42～0.49 m/min)对42CrMo钢Φ195 mm轧材低倍组织和偏析的影响。结果表明,在现有工艺条件下,42CrMo钢过热度控制在20～30 ℃,二冷比水量0.30 L/kg,结晶器电搅100A/1.5 Hz,末端电搅400A/8 Hz,连铸拉速控制在0.49 m/min,总压下量6～8 mm,能有效改善42CrMo钢轧材的内部质量。

关键词: 42CrMo钢, 中心疏松, 中心偏析, 轻压下, 拉速

Zhang Yue, Lii Zean, Ma Jianyi, Zhong Qian, Wang Zhanzhong, Peng Feng. Effect of Soft Reduction and Cast Speed on Macrostructure and Centre C Segregation of 42CrMo Steel Φ195 mm Bar Rolled from 410 mm x 530 mm Cast Bloom[J]. Special Steel, 2021, 42(4): 35-38.

张越, 吕泽安, 马建祎, 钟骞, 王占忠, 彭峰. 轻压下和拉速对42CrMo钢410 mm x 530 mm铸坯轧成Φ195 mm材的低倍和中心C偏析的影响[J]. 特殊钢, 2021, 42(4): 35-38.

Effect of Soft Reduction and Cast Speed on Macrostructure and Centre C Segregation of 42CrMo Steel Φ195 mm Bar Rolled from 410 mm x 530 mm Cast Bloom

轻压下和拉速对42CrMo钢410 mm x 530 mm铸坯轧成Φ195 mm材的低倍和中心C偏析的影响

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 0

Recommended Articles

Metrics

Comments