| 80 t转炉-LF-VD-CC流程冶炼N80-1石油套管钢的工艺实践 |
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| 引用本文： | 张勇,康建光,任焕,何明辉.80 t转炉-LF-VD-CC流程冶炼N80-1石油套管钢的工艺实践[J].特殊钢,2010,31(5):33-35. |
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| 作者姓名： | 张勇 康建光 任焕 何明辉 |
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| 作者单位： | 1. 东北大学材料与冶金学院，沈阳 110000；
2. 黑龙江建龙钢铁有限公司技术处,双鸭山 155100; |
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| 摘 要： | N80-1石油套管钢36Mn2V(%):0.34～0.38C、0.25～0.40Si、1.45～1.70Mn、≤0.020P、≤0.015S、0.01～0.04Al、0.11～0.16V,(Sn+Sb+As+Pb+Bi)≤0.035,O]≤35×10-6,N]≤80×10-6,H]≤2.5×10-6由80 t顶底复吹转炉-LF-VD-Φ210～270 mm圆坯连铸工艺冶炼。通过高拉碳补吹氧、控制终点C],控制出钢回磷≤0.008%,使用碱度3.2～4.0的精炼渣系等工艺措施,使该钢P为0.012%～0.019%,S为0.003%～0.005%,O](11～22)×10-6,N](39～76)×10-6,H](1.5～2.1)×10-6,其成分、组织和性能均达到用户以及API Spec5CT标准要求。
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| 关 键 词： | 转炉 N80-1石油套管钢 工艺实践 |
| 收稿时间： | 2010-03-23 |
Practice of Process for Steelmaking of N80-1 Oil Casing Pipe Steel by 80 t Converter-LF-VD-CC Flow Sheet |
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| Zhang Yong,Kang Jianguang,Ren Huan,He Minghui.Practice of Process for Steelmaking of N80-1 Oil Casing Pipe Steel by 80 t Converter-LF-VD-CC Flow Sheet[J].Special Steel,2010,31(5):33-35. |
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| Authors: | Zhang Yong Kang Jianguang Ren Huan He Minghui |
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| Affiliation: | 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110000；
2. Technical Department, Heilongjiang Jianlong Iron and Steel Co, Shuangyashan 155100； |
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| Abstract: | The N80-1 oil casing pipe steel (36Mn2V, % : 0.34-0.38C, 0.25-0.40Si, 1.45-1.70Mn, ≤ 0.020P, ≤ 0.015S, 0.01 -0.04Al, 0.11-0.16V, (Sn + Sb + As + Pb + Bi) ≤ 0.035, O] ≤ 35 x 10-6, N] ≤ 80 x 10-6, H] ≤ 2.5 x 10-6 is melted by 80t top and bottom combined blown converter-LF-VD-Φ210 ~ 270 mm round bloom casting process. With process measures such as catch carbon and reblow practice, controlling end C] , controlling rephosphorization W0. 008% at tapping, and using basicity 3.2-4.0 refining slag, the P content in steel is 0.012%-0.019% , S is 0.003%-0.005%, while O] (11 -22) x 10-6, N] (39 ~76) x 10-6 and H] (1.5-2.1) x 10-6, and the analysis, structure and properties of steel are all meeting the requirements of consumer and standard API Spec 5CT. |
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| Keywords: | Converter N80-1 Oil Case Pipe Steel Process Practice |
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