| 硅钙钡在生产HRB400E钢中的应用 |
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| 引用本文： | 徐磊,白澈力格尔.硅钙钡在生产HRB400E钢中的应用[J].天津冶金,2014(5):7-9. |
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| 作者姓名： | 徐磊 白澈力格尔 |
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| 作者单位： | 1. 天津冶金集团轧三钢铁有限公司供应部,天津,301606
2. 天津冶金集团轧三钢铁有限公司炼钢厂,天津,301606 |
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| 摘 要： | 为提高脱氧效率,降低中包水口堵塞事故,通过在HRB400E钢生产中应用硅钙钡,有效降低了钢水氧活度,投入量为1.9 kg/t时即可满足钢水溶解氧20×10~(-6)~30×10~(-6)的工艺要求。与铝系合金脱氧相比,连铸中包水口堵塞事故率也由原来的9.1%降低到2.3%。经硅钡钙脱氧后的成品棒材力学性能符合HRB400E抗震钢筋国标要求,值得推广应用。
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| 关 键 词： | 硅钡钙 复合脱氧 氧活度 力学性能 |
Application of Si-Ca-Ba to HRB400E Steel Production |
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| XU Lei,BAI Chelige'er.Application of Si-Ca-Ba to HRB400E Steel Production[J].Tianjin Metallurgy,2014(5):7-9. |
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| Authors: | XU Lei BAI Chelige'er |
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| Affiliation: | XU Lei,BAI Chelige＇er ( Supply Division 1and Steel-making Plant2 of Zhasan Iron and Steel Co., Ltd., Tianjin 301606, China ) |
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| Abstract: | In order to improve deoxidation efficiency and reduce nozzle clogging accidents,Si-Ca-Ba is adopted in the production of HRB400 E steel,which effectively lowers oxygen activity in molten steel.When 1.9 kg/t Si-Ca-Ba is added,the process requirement of dissolving 20 × 10^-6- 30 × 10^-6 oxygen in steel can be met.Compared with aluminum-based alloy deoxidation,the rate of nozzle clogging incident in tundish has decreased from 9.1%to 2.3%.The mechanical properties of the finished bar with Si-Ca-Ba deoxidation treatment comply with the national standard requirements on HRB400 E aseismic reinforcement bar and the product is worthy of promotion and application. |
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| Keywords: | Si-Ca-Ba compound deoxidation oxygen activity mechanical property |
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