Home Journals Articles Updates About
CN
image
收藏切换
Study on Cold Crack Sensitivity of Bridge Steel Q345qDNH
收藏切换
Xing-long Xue1, Hui-hui Wei2
Rare Earth Steel | 2021, 47(4) : 43 - 45
Less
收藏切换
Rare Earth Steel | 2021, 47(4): 43-45
• Quality of Variety and Experiment and Research •
Study on Cold Crack Sensitivity of Bridge Steel Q345qDNH
Full
Xing-long Xue1, Hui-hui Wei2
Affiliations
  • 1.Inner Mongolia Baotou Steel Rare Earth Steel Plate 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: 2021-08-25 doi: 10.13647/j.cnki.btgkj.2021.04.011
Outline
收藏切换

The inclined Y-groove welding crack test, maximum hardness test in heat affected zone and rigid butt-joint cracking test for bridge steel Q345qDNH produced by Baotou Steel are carried out. The test results showed that the cold crack sensitivity of bridge steel Q345qDNH with thickness of 20 mm was not great and its cold cracks could be avoided without preheating or using the preheating temperature system of 50 ℃ in actual welding process.

Q345qDNH  /  inclined Y-groove welding crack test  /  maximum hardness test in heat affected zone  /  rigid butt-joint cracking test
薛兴隆, 魏慧慧. 桥梁钢Q345qDNH冷裂纹敏感性研究. 包钢科技, 2021 , 47 (4) : 43 -45 . DOI: 10.13647/j.cnki.btgkj.2021.04.011
Xing-long Xue, Hui-hui Wei. Study on Cold Crack Sensitivity of Bridge Steel Q345qDNH[J]. Science & Technology of Baotou Steel, 2021 , 47 (4) : 43 -45 . DOI: 10.13647/j.cnki.btgkj.2021.04.011
Appendix
Less
Year 2021 volume 47 Issue 4
71
10
Cite this Article
BibTeX
Article Info
doi: 10.13647/j.cnki.btgkj.2021.04.011
  • Receive Date：2021-03-16
  • Online Date：2026-10-20
  • Published：2021-08-25
Article Data
Affiliations
History
  • Received：2021-03-16
Affiliations
    1.Inner Mongolia Baotou Steel Rare Earth Steel Plate 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
References
Share
https://castjournals.cast.org.cn/joweb/xtg/EN/10.13647/j.cnki.btgkj.2021.04.011
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
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
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House