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Evolution Rules of Non-metallic Inclusions in Smelting Process of Heavy Rail
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Da-xian Zhang1, Lei Ni2, Rui-dong Qiao2, Xiao-guang Ma1, Jian-ping Tang1, Yuan-you Xiao3
Science & Technology of Baotou Steel | 2022, 48(6) : 15 - 18
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Science & Technology of Baotou Steel | 2022, 48(6): 15-18
• Production Practices and Management •
Evolution Rules of Non-metallic Inclusions in Smelting Process of Heavy Rail
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Da-xian Zhang1, Lei Ni2, Rui-dong Qiao2, Xiao-guang Ma1, Jian-ping Tang1, Yuan-you Xiao3
Affiliations
  • 1 Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2 Steel-making Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 3 School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China
Published: 2022-12-25
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The changes of morphology, component and size for non-metallic inclusions in smelting process are studied with metalloscope and scanning electron microscope-energy spectrum analysis by sampling in each link of technological process of heavy rail. The results showed that the non-metallic inclusions in smelting process were spherical and their main components were CaO-SiO2-MgO-Al2O3 as well as the proportion of content for each component was changed regularly with technological links, sizes were decreased gradually and quantity was reduced with the advance of technological process. The main source of inclusions in rail could be judged according to the change laws of components for inclusions in each process of smelting process for heavy rail. It could be inferred that the large size inclusions in heavy rail steel are compound inclusions composed of deoxidation product that is not upfloated combining with foreign inclusions during continuous casting process by analyzing the scanning electron microscope-energy spectrum detection results for large size inclusions in heavy rail.

heavy rail  /  technological process  /  inclusion
Da-xian Zhang, Lei Ni, Rui-dong Qiao, Xiao-guang Ma, Jian-ping Tang, Yuan-you Xiao. Evolution Rules of Non-metallic Inclusions in Smelting Process of Heavy Rail[J]. Science & Technology of Baotou Steel, 2022 , 48 (6) : 15 -18 .
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Article Info
  • Receive Date：2022-10-12
  • Online Date：2025-11-24
  • Published：2022-12-25
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  • Received：2022-10-12
Affiliations
    1 Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    2 Steel-making Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    3 School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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