1.北京科技大学工程技术研究院,北京 100083
2.东北特殊钢集团股份有限公司,大连 116105
张宇迪(1997―),女,硕士生;E-mail:g20209231@xs.ustb.edu.cn
刘建华(1966―),男,教授,博士生导师;E-mail:liujianhua@metall.ustb.edu.cn
收稿:2023-03-15,
纸质出版:2023-12-01
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张宇迪,刘建华,何杨等.增氮析氮法去除钢中夹杂物工艺实践[J].特殊钢,2023,44(06):53-57.
Zhang Yudi,Liu Jianhua,He Yang,et al.Industrial Experimental Study on Removal of Inclusions in Steel by Nitrogen Addition and Release Method[J].Special Steel,2023,44(06):53-57.
张宇迪,刘建华,何杨等.增氮析氮法去除钢中夹杂物工艺实践[J].特殊钢,2023,44(06):53-57. DOI: 10.20057/j.1003-8620.2023-00040.
Zhang Yudi,Liu Jianhua,He Yang,et al.Industrial Experimental Study on Removal of Inclusions in Steel by Nitrogen Addition and Release Method[J].Special Steel,2023,44(06):53-57. DOI: 10.20057/j.1003-8620.2023-00040.
在42CrMoA合金结构钢LF-RH精炼生产中,进行了原生产工艺和增氮析氮法去除钢中夹杂物技术工业试验研究,获得了良好的实验效果。通过系统取样,发现在增氮析氮法LF精炼过程中,通过底吹增氮法可使钢中T[N]含量增至260×10
-6
以上,满足RH真空精炼过程中以气泡形式析氮的需求;增氮析氮法还具有良好的全氧去除效果,经RH真空处理后,平均T[O]含量下降率可达37.4%;增氮析氮法也具有良好的夹杂物去除效果,经处理后单位面积夹杂物数量由原有的8.771个/mm
2
降为3.585个/mm
2
,去除率达34.6%;在各类夹杂物中,增氮析氮法对氧化铝夹杂去除效率最高,处理后可将钢中Al
2
O
3
夹杂比例由83%降为74%,有效提升了42CrMoA合金结构钢洁净度。
In the refining production of LF-RH of 42CrMoA alloy structural steel, the original production process and the industrial test technology of steel inclusion removal by nitrogen addition and release method were carried out, and the good experimental results were obtained. Through systematic sampling, it was found that adding nitrogen through bottom blowing during the LF refining process can increase T[N] in the steel to 260 × 10
-6
, and meet the demand of nitrogen release in the form of bubbles during RH vacuum refining process; Nitrogen addition and release method also had good total oxygen removal effects, after RH vacuum treatment, the average T[O] content reduction can reach 37.4%; Nitrogen addition and release method also had good inclusion removal effect, the number of inclusion per unit area can be reduced from the original 8.771 pieces / mm
2
to 3.585 pieces / mm
2
after treatment, and the removal rate can reach 34.6%; In all kinds of inclusions, nitrogen extraction method had the highest removal efficiency of alumina inclusion, the proportion of Al
2
O
3
inclusion in steel can be reduced from 83% to 74% after treatment, which effectively improved the cleanliness of 42CrMoA alloy structural steel.
刘建华 , 张杰 , 李康伟 . 气泡去除夹杂物技术研究现状及发展趋势 [J]. 炼钢 , 2017 , 33 ( 2 ): 1 - 9+14 .
杨虎林 , 何平 , 翟玉春 . 气泡尾流去除钢液中夹杂物机理的水模型研究 [J]. 特殊钢 , 2014 , 35 ( 1 ): 15 - 18 .
赵晶晶 , 程树森 . 精炼时利用小气泡搅拌去除钢液中的氢和夹杂物 [J]. 特殊钢 , 2010 , 31 ( 2 ): 29 - 32 .
刘建华 , 李巍 , 何杨 , 等 . 长水口吹氩生成微小气泡工业实验研究 [J]. 工程科学学报 , 2022 , 44 ( 7 ): 1183 - 1191 .
程瑾琦 , 张立强 , 伏凯旋 , 等 . 钢包长水口吹氩自动控制系统研究与应用 [J]. 钢铁研究学报 , 2022 , 34 ( 6 ): 562 - 570 .
Zhang S , Liu J , He Y , et al . Bubble formation by argon injection through the down-leg snorkel with Ruhrstahl-Heraeus (RH) circulating flow [J]. Journal of Materials Processing Technology , 2022 , 306 : 117647 .
Arai M , Watanabe K , Okimoto S , et al . Production of clean steel by pressure elevating and reducing method [J]. Tetsu-to-Hagane , 1993 , 79 ( 9 ): 121 - 124 .
张裕嘉 . 增压减压法净化低碳钢及镍基高温合金JG4246A的研究 [D]. 上海 : 上海大学 , 2019 .
Li K . W, Liu J.H, Zhou J.B, et al. Micro non-metallic inclusion removal from molten steel with gas bubbles generated by the nitrogen absorbing and releasing method [J]. Chinese Journal of Engineering , 2015 , 37 ( 9 ): 1124 - 1129 .
Zhang J E , Liu J H , Yu S J , et al . Production of Clean Steel Using the Nitrogen Elevating and Reducing Method [J]. Metals , 2018 , 8 ( 7 ): 560 - 575 .
王晓峰 , 唐复平 , 李镇 , 等 . 反应诱发微小异相净化钢水技术 [J]. 钢铁 , 2014 , 49 ( 10 ): 18 - 23 .
张杰 . 溶气气浮技术去除钢中夹杂物研究 [D]. 北京 : 北京科技大学 , 2020 .
Li K W , Liu J H , Zhang J , et al . Theoretical Analysis of bubble nucleation in molten steel supersaturated with nitrogen or hydrogen [J]. Metallurgical and materials Transactions B , 2017 , 48 ( 4 ): 2136 - 2146 .
张杰 , 刘建华 , 闫柏军 , 等 . 增氮析氮法去除硅锰脱氧钢中夹杂物的研究 [J]. 工程科学学报 , 2018 , 40 ( 8 ): 937 - 944 .
郑禹 , 姜培扬 , 张豪臻 , 等 . 盾构机轴承套圈用钢42CrMo连续加热奥氏体晶粒长大模型 [J]. 特殊钢 , 2014 , 35 ( 6 ): 57 - 59 .
刘鹏 . 风电齿圈用钢F42CrMo4探伤缺陷分析和工艺改进 [J]. 特殊钢 , 2019 , 40 ( 4 ): 16 - 18 .
金启邦 , 孙世平 , 王青海 , 等 . 控轧控冷和冷床保温工艺对42CrMo钢 <math id="M9"><mi>ϕ</mi></math> https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=50099875&type= https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=50099874&type= 1.86266661 2.53999996 50 mm轧材力学性能的影响 [J]. 特殊钢 , 2021 , 42 ( 5 ): 72 - 74 .
张越 , 吕泽安 , 马建祎 , 等 . 轻压下和拉速对42CrMo钢410 mm×530 mm铸坯轧成 <math id="M10"><mi>ϕ</mi></math> https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=50099875&type= https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=50099874&type= 1.86266661 2.53999996 195 mm材的低倍和中心C偏析的影响 [J]. 特殊钢 , 2021 , 42 ( 4 ): 35 - 38 .
邢建森 . 连铸增氮的影响因素与控制 [J]. 天津冶金 , 2017 ( S1 ): 24 - 26 .
左小坦 , 陈永峰 , 陶群南 , 等 . 高合金钢中氮含量控制分析 [J]. 工业加热 , 2019 , 48 ( 4 ): 13 - 15+20 .
程礼梅 , 张立峰 , 沈平 . 钢铁冶金过程中的界面现象 [J]. 工程科学学报 , 2018 , 40 ( 10 ): 1139 - 1157 .
杨虎林 . 高品质特殊钢中微气泡快速过滤去除夹杂物技术研究 [D]. 沈阳 : 东北大学 , 2014 .
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