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Optimization Measures for Longitudinal Crack on Low Cost H Beam Containing Ti
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Zhi-guo Hui1, Yan-qing Feng1, Zhen-dong Song1, Xiang-dong Bu1, Xiong-hui Lu2
Rare Earth Steel | 2020, 46(4) : 56 - 58
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Rare Earth Steel | 2020, 46(4): 56-58
• Quality of Variety and Experiment and Research •
Optimization Measures for Longitudinal Crack on Low Cost H Beam Containing Ti
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Zhi-guo Hui1, Yan-qing Feng1, Zhen-dong Song1, Xiang-dong Bu1, Xiong-hui Lu2
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
Published: 2020-08-25 doi: 10.13647/j.cnki.btgkj.2020.04.015
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In the paper, the causes of cracks are analyzed and measures for reducing crack rate are put forward aiming at the longitudinal cracks along web on the surface of finished product, the low cost Q355B containing Ti, produced with beam blank by Baotou Steel. The results showed that the cracks were caused by small cracks on continuous casting billet, which grew and formed in rolling process, the longitudinal cracks could be significantly reduced and crack rate of finished product could be reduced to less than 3% by the reasonable matching of casting speed and tundish temperature.

low cost containing Ti  /  Q355B  /  surface longitudinal crack
惠治国, 冯岩青, 宋振东, 卜向东, 卢雄慧. 含Ti低成本H型钢纵向裂纹优化措施. 包钢科技, 2020 , 46 (4) : 56 -58 . DOI: 10.13647/j.cnki.btgkj.2020.04.015
Zhi-guo Hui, Yan-qing Feng, Zhen-dong Song, Xiang-dong Bu, Xiong-hui Lu. Optimization Measures for Longitudinal Crack on Low Cost H Beam Containing Ti[J]. Science & Technology of Baotou Steel, 2020 , 46 (4) : 56 -58 . DOI: 10.13647/j.cnki.btgkj.2020.04.015
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Year 2020 volume 46 Issue 4
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Article Info
doi: 10.13647/j.cnki.btgkj.2020.04.015
  • Receive Date：2020-05-07
  • Online Date：2026-10-20
  • Published：2020-08-25
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  • Received：2020-05-07
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
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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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