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Current Status of Domestic Production Technology for Heavy Rail
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Li-hong Guo1, Yang Liu2, Hu-dong Xue2
Science & Technology of Baotou Steel | 2023, 49(3) : 67 - 71
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Science & Technology of Baotou Steel | 2023, 49(3): 67-71
• Varieties and Quality and Experimental Study •
Current Status of Domestic Production Technology for Heavy Rail
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Li-hong Guo1, Yang Liu2, Hu-dong Xue2
Affiliations
  • 1 Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China
  • 2 Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China
Published: 2023-06-25
Outline
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In this article, the current status of processes and equipment for smelting and rolling heavy rail steel in domestic manufacturing enterprises of heavy rail is mainly introduced. The advantages and disadvantages of different steel-making processes are analyzed through comparing the technical indicators achieved by different control modes of different smelting processes, pretreatment of hot metal, smelting with oxygen top-blown converter, refining with ladle furnace (LF), vacuum degassing and continuous bloom casting; the effects of different processes on product quality and the product range that can be rolled are analyzed through comparing the process characteristics of different layout forms of rolling modes such as continuous rolling modes of universal three stands, universal three stands 2+1, universal five stands 2+2+1 and universal four stands 3+1 so that the advantages and disadvantages of different rolling processes are elaborated. In addition, the straightening machine and detection equipment of heavy rail are briefly introduced.

heavy rail  /  smelting  /  rolling  /  mill layout
Li-hong Guo, Yang Liu, Hu-dong Xue. Current Status of Domestic Production Technology for Heavy Rail[J]. Science & Technology of Baotou Steel, 2023 , 49 (3) : 67 -71 .
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Year 2023 volume 49 Issue 3
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Article Info
  • Receive Date：2023-04-01
  • Online Date：2025-11-20
  • Published：2023-06-25
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  • Received：2023-04-01
Affiliations
    1 Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China
    2 Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China
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Citations
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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