| 工艺因素对82B钢280 mm x325 mm铸坯凝固过程的影响 |
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| 引用本文： | 吕进,徐东,郑冰,庞洪轩,邹志鹏,杨昕昆.工艺因素对82B钢280 mm x325 mm铸坯凝固过程的影响[J].特殊钢,2022,43(2):12-15. |
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| 作者姓名： | 吕进 徐东 郑冰 庞洪轩 邹志鹏 杨昕昆 |
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| 作者单位： | 1河北工程大学河北省高品质冷傲钢技术创新中心，邯郸056038,
2安阳市新普钢铁有限公司技术中心，安阳455003；
3辽宁科技大学冶金学院，鞍山114051 ；
4河北普阳钢铁集团河北省高韧性风塔钢工程研究中心，邯郸056305；
5河北普阳钢铁集团河北省高塑韧性耐磨钢板技术创新中心，邯郸056305 |
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| 摘 要： | 为模拟不同工艺条件下的连铸坯的凝固过程,采用有限元法模拟了82B钢连铸的凝固过程,获得280 mm×325 mm连铸坯的温度场。结果表明,随拉速从0.60 m/min增加到0.76 m/min,凝固时fs=1处与fs=0处皆后移,但中心凝固时间反而增加了9.8%。随过热度由15℃增加到50℃时,凝固末端fs=1处同样后移,约后移1.1 m。根据模拟结果改进连铸工艺,当拉速从0.60 m/min增加到0.76m/min,增加轻压下工艺可改善低倍质量。
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| 关 键 词： | 280mmx325mm连铸坯 温度场 二次冷却区 数值模拟 SWRH82B钢 |
| 收稿时间： | 2021-08-09 |
Effects of Technological Factors on Solidified Process During Continuous Casting of 82B Steel 280 mm x 325 mm Bloom |
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| Lü Jin,Xu Dong,Zheng Bing,Pang Hongxuan,Zou Zhipeng,Yang Xinkun.Effects of Technological Factors on Solidified Process During Continuous Casting of 82B Steel 280 mm x 325 mm Bloom[J].Special Steel,2022,43(2):12-15. |
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| Authors: | Lü Jin Xu Dong Zheng Bing Pang Hongxuan Zou Zhipeng Yang Xinkun |
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| Abstract: | In order to simulate solidification process of the bloom continuous casting under different technological factors ,the solidification process of 82B steel is simulated by using finite element method, and temperature field of 280 mm x 325 mm casting bloom is obtained. The results show that the solidification at fs=1 and fs =0 both move backward with the increase of the casting speed from 0. 60 m/min to 0. 76 m/min, but the solidification time of center increases by 9. 8% ； when the superheat increases from 15 °C to 50°C , the solidification end （fs=1） also moves backward about 1. 1 m. Based on simulation result to improve casting process, as casting speed increasing from 0. 60 m/min to 0. 76 m/min, with adding soft reduction, it is availebe to improve macrostructure quality. |
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