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Research on Smelting Process Control of Rare Earth Steel and Mechanism of Nozzle Clogging
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Feng Yang1, 2, Yu-shuang Zhang3
Rare Earth Steel | 2019, 45(6) : 27 - 32
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Rare Earth Steel | 2019, 45(6): 27-32
• Production Practice and Management •
Research on Smelting Process Control of Rare Earth Steel and Mechanism of Nozzle Clogging
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Feng Yang1, 2, Yu-shuang Zhang3
Affiliations
  • 1.Inner Mongolia Enterprise Key Laboratory of Rare Earth Steel Products Research & Development, 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
  • 3.Baotou Iron and Steel Vocational Technical College, Baotou 014010, Inner Mongolia Autonomous Region, China
Published: 2019-10-25 doi: 10.13647/j.cnki.btgkj.2019.06.007
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In the paper, the control for each process of smelting rare earth is introduced. The test results showed that the rare earth was still with deoxygenation and desulfuration when the contents of oxygen and sulfur in steel were ultra low as well as the inclusions in steel were mainly tiny rare earth oxysulfides with the size of 3~5 μm. There is serious nozzle clogging during pouring process and the blockage is mainly cold steel. Such measures as improving the cleanness of molten steel and rare earth alloy, increasing pouring temperature and developing new-type nozzle are proposed by analyzing the mechanism of nozzle clogging to solve the problem of pouring nozzle clogging for rare earth steel.

rare earth steel  /  smelting  /  cleanness  /  inclusion  /  nozzle clogging
杨峰, 张玉双. 稀土钢冶炼工艺控制及水口堵塞机理的研究. 包钢科技, 2019 , 45 (6) : 27 -32 . DOI: 10.13647/j.cnki.btgkj.2019.06.007
Feng Yang, Yu-shuang Zhang. Research on Smelting Process Control of Rare Earth Steel and Mechanism of Nozzle Clogging[J]. Science & Technology of Baotou Steel, 2019 , 45 (6) : 27 -32 . DOI: 10.13647/j.cnki.btgkj.2019.06.007
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Year 2019 volume 45 Issue 6
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doi: 10.13647/j.cnki.btgkj.2019.06.007
  • Receive Date：2019-09-16
  • Online Date：2026-10-20
  • Published：2019-10-25
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History
  • Received：2019-09-16
Affiliations
    1.Inner Mongolia Enterprise Key Laboratory of Rare Earth Steel Products Research & Development, 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
    3.Baotou Iron and Steel Vocational Technical College, Baotou 014010, Inner Mongolia Autonomous Region, 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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