Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 A
For the control of cord steel inclusion， long time soft bubbling treatment is usually chosen to improve the cleanliness of molten steel， but it will lead to the increased erosion of magnesia-carbon bricks. Through the industrial production test， the effects of soft blowing time after LF refining on...
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Editorial Office of Special Steel
2024-11-01
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| Series: | Teshugang |
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| Online Access: | http://www.specialsteeljournal.com/fileup/1003-8620/PDF/2024-00099.pdf |
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| author | Zhao Haoqian, Zhang Yuming, Ma Bo, Gong Yanjie, Meng Yaoqing |
| author_facet | Zhao Haoqian, Zhang Yuming, Ma Bo, Gong Yanjie, Meng Yaoqing |
| author_sort | Zhao Haoqian, Zhang Yuming, Ma Bo, Gong Yanjie, Meng Yaoqing |
| collection | DOAJ |
| description | For the control of cord steel inclusion， long time soft bubbling treatment is usually chosen to improve the cleanliness of molten steel， but it will lead to the increased erosion of magnesia-carbon bricks. Through the industrial production test， the effects of soft blowing time after LF refining on the composition and quantity of oxide inclusions of cord steel wire rod were studied by means of FEI Explorer 4 automatic scanning electron microscopy. Becca standard score and Kobe Standard Max-T （ave） score were used to evaluate the inclusion of wire rod. The results showed that the composition of oxide inclusions larger than 3 μm in the wire rod was similar to that in the process of soft blowing time of 45 min and 25 min after LF refining， and the density of inclusions was 135 /100 mm2 and 103 /100 mm2， respectively. The density of inclusions in the process of soft blowing time of 25 min after LF refining was slightly lower. Expanding the number of comparison tests， the score of Kobe standard Max-T （ave） and Becca standard indicate that the inclusions control of soft bubbling process for 20-25 min did not become worse or slightly improved. The control of low melting point inclusions in cord steel was mainly through controlling Al content， refining slag and other process parameters， and the inclusions that lead to the failure of the final product are often inconsistent with the types of endogenous inclusions. For cord steel， it can be considered to reduce the soft blowing time after LF refining. |
| format | Article |
| id | doaj-art-df78b2e2a44e4a33ab32b745ae2bf3f9 |
| institution | Kabale University |
| issn | 1003-8620 |
| language | zho |
| publishDate | 2024-11-01 |
| publisher | Editorial Office of Special Steel |
| record_format | Article |
| series | Teshugang |
| spelling | doaj-art-df78b2e2a44e4a33ab32b745ae2bf3f92024-11-19T06:11:30ZzhoEditorial Office of Special SteelTeshugang1003-86202024-11-01456535610.20057/j.1003-8620.2024-00099Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 AZhao Haoqian, Zhang Yuming, Ma Bo, Gong Yanjie, Meng Yaoqing0（1 Technology Center of Xingtai Iron and Steel Co.， Ltd.， Xingtai 054027， China；2 Hebei Xinggang Technology Co.， Ltd.， Xingtai 054799， China；3 Hebei Innovation Center for Wire Rod， Xingtai 054027， China；4 Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education， Wuhan University of Science and Technology， Wuhan 430081， China）For the control of cord steel inclusion， long time soft bubbling treatment is usually chosen to improve the cleanliness of molten steel， but it will lead to the increased erosion of magnesia-carbon bricks. Through the industrial production test， the effects of soft blowing time after LF refining on the composition and quantity of oxide inclusions of cord steel wire rod were studied by means of FEI Explorer 4 automatic scanning electron microscopy. Becca standard score and Kobe Standard Max-T （ave） score were used to evaluate the inclusion of wire rod. The results showed that the composition of oxide inclusions larger than 3 μm in the wire rod was similar to that in the process of soft blowing time of 45 min and 25 min after LF refining， and the density of inclusions was 135 /100 mm2 and 103 /100 mm2， respectively. The density of inclusions in the process of soft blowing time of 25 min after LF refining was slightly lower. Expanding the number of comparison tests， the score of Kobe standard Max-T （ave） and Becca standard indicate that the inclusions control of soft bubbling process for 20-25 min did not become worse or slightly improved. The control of low melting point inclusions in cord steel was mainly through controlling Al content， refining slag and other process parameters， and the inclusions that lead to the failure of the final product are often inconsistent with the types of endogenous inclusions. For cord steel， it can be considered to reduce the soft blowing time after LF refining.http://www.specialsteeljournal.com/fileup/1003-8620/PDF/2024-00099.pdftire cord steel； lf refining； soft bubbling time； inclusion； al2o3 content |
| spellingShingle | Zhao Haoqian, Zhang Yuming, Ma Bo, Gong Yanjie, Meng Yaoqing Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 A Teshugang tire cord steel； lf refining； soft bubbling time； inclusion； al2o3 content |
| title | Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 A |
| title_full | Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 A |
| title_fullStr | Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 A |
| title_full_unstemmed | Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 A |
| title_short | Effect of LF Soft Bubbling Time on Inclusions in Tire Cord Steel LX82 A |
| title_sort | effect of lf soft bubbling time on inclusions in tire cord steel lx82 a |
| topic | tire cord steel； lf refining； soft bubbling time； inclusion； al2o3 content |
| url | http://www.specialsteeljournal.com/fileup/1003-8620/PDF/2024-00099.pdf |
| work_keys_str_mv | AT zhaohaoqianzhangyumingmabogongyanjiemengyaoqing effectoflfsoftbubblingtimeoninclusionsintirecordsteellx82a |