Optimizing Continuous Casting Process to Improve SWRH82A Steel 150 mm x 150 nun Billet Center Carbon Segregation
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Optimizing Continuous Casting Process to Improve SWRH82A Steel 150 mm x 150 nun Billet Center Carbon Segregation
Special SteelVol. 43, Issue 4, Pages: 24-27(2022)
作者机构:
1. 东北特殊钢集团股份有限公司1总工办
2. 技术中心,大连,116000
作者简介:
基金信息:
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Online First:12 August 2022,
Published:12 August 2022
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毕胜, 宫哲, 王鑫, et al. Optimizing Continuous Casting Process to Improve SWRH82A Steel 150 mm x 150 nun Billet Center Carbon Segregation[J]. Special Steel, 2022, 43(4): 24-27.
DOI:
毕胜, 宫哲, 王鑫, et al. Optimizing Continuous Casting Process to Improve SWRH82A Steel 150 mm x 150 nun Billet Center Carbon Segregation[J]. Special Steel, 2022, 43(4): 24-27.DOI:
Optimizing Continuous Casting Process to Improve SWRH82A Steel 150 mm x 150 nun Billet Center Carbon Segregation
In order to reduce the center carbon segregation of SWRH82A steel 150mm x 150 mm cast billet
the experiments with different continuous casting processes including casting speed (1. 9 ~ 2. 3 m/min)
water ratio in secondary cooling zone (0. 75 ~ 1.24 L/kg)
degree of liquid superheat (25 - 28 °C )
mold electromagnetic stirring intensity (300 ~ 350 A) and end electromagnetic stirring intensity (300 ~ 470 A) have been carried out. The results prove that when the casting speed is 1. 9 ~2. 0 m/min
the liquid superheat is about 25 °C
the water ratio is 1. 01 L/kg
the mold electromagnetic stirring intensity is 350 A/3 Hz
and the end electromagnetic stirring intensity is 400 A/7 Hz
the billet center carbon segregation index can be large improved decreasing from original 1. 21 to 1. 05.