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- Title
差温轧制连铸钢坯芯部孔洞压合过程数值模拟.
- Authors
王斌; 宁新禹; 李方坡; 李海军
- Abstract
Based on the high permeability temperature gradient rolling technology by temperature-deformation coupling control, the effects of the intensive water cooling before rolling and rolling reduction ratio on void closure in the core of the bloom were studied by numerical simulation using DEFORM software. The results show that temperature gradient greatly affects the deformation flow of the bloom. Increasing the water-cooling time increases the temperature difference between the core and the surface of the continuous casting steel, which leads to a larger temperature gradient, so that the deformation permeability of rolling can be enhanced effectively. Moreover, an increasing reduction ratio of the single-pass rolling combined with the temperature gradient can further increase the deformation flow in the core of the bloom, which promotes the void closure, so that the quality of the continuous casting steel can be greatly improved.
- Subjects
STEEL founding; CONTINUOUS casting; CAST steel; HIGH strength steel; HIGH temperatures; ROLLING (Metalwork); HOT rolling
- Publication
Journal of Northeastern University (Natural Science), 2021, Vol 42, Issue 7, p939
- ISSN
1005-3026
- Publication type
Article
- DOI
10.12068/j.issn.1005-3026.2021.07.005