| E级船板钢钙处理工艺研究 |
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| 引用本文： | 孙宝芳,包燕平,刘建华,李太全,岳峰,肖大恒,陈奇明.E级船板钢钙处理工艺研究[J].特殊钢,2007,28(6):46-48. |
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| 作者姓名： | 孙宝芳 包燕平 刘建华 李太全 岳峰 肖大恒 陈奇明 |
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| 作者单位： | 1北京科技大学冶金与生态工程学院，北京100083；
2湘潭钢铁公司技术中心，湘潭411100 |
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| 摘 要： | 通过Als-O]平衡和Ca残-Als平衡的热力学计算,研究了湘钢Nb-Ti微合金化E级船板钢(0.10%C)两种钙处理工艺:两步法(LF+喂Ca-Si线-VD+喂Ca-Si线)和一步法(LF-VD+喂Ca-Si线)对钢中夹杂物形态和力学性能的影响。结果表明,当钢中S≤0.003%,TO]≤15×10-6,Als控制在0.02%～0.04%时,进行一步法钙处理后钢中≤4μm的球形夹杂物达93%,-40℃的横向冲击功为156～240J。
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| 关 键 词： | E级船板钢 Ca处理 力学性能 |
| 收稿时间： | 2007-05-29 |
| 修稿时间： | 2007-05-29 |
A Study on Precess of Calcium Treatment for Grade E Hull Steel |
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| Sun Bao-fang,Bao Yan-ping,Liu Jian-hua,Li Tai-quan,Yue Feng,Xiao Da-heng,Chen Qi-ming.A Study on Precess of Calcium Treatment for Grade E Hull Steel[J].Special Steel,2007,28(6):46-48. |
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| Authors: | Sun Bao-fang Bao Yan-ping Liu Jian-hua Li Tai-quan Yue Feng Xiao Da-heng Chen Qi-ming |
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| Affiliation: | 1 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ；
2 Technical Center, Xiangtan Iron & Steel Corp, Xiangtan 411100 |
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| Abstract: | The effect of two processes of calcium treatment: two step process (LF + Ca-Si wire feeding - VD + Ca- Si wire feeding) and one step process (LF - VD + Ca-Si wire feeding) at Xiangsteel on morphology of inclusions and mechanical properties of Nb-Ti microalloying grade E hull steel (0. 10%C) has been studied by thermodynamic calculation on equilibrium of Als - O] and equilibrium of Caresidual- Als. Results showed that as S in steel ≤0. 003% , TO] ≤15 x 10-6, and controlled Als in steel 0. 02% ?0. 04% , after one step process of calcium treatment the W4 pun spherical inclusions in steel were up to 93% , and cross impact energy at -40 t was 156 -240 J. |
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| Keywords: | Grade E Hull Plate Ca Treatment Mechanical Properties |
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