Square bloom continuous casting manufacturing method facilitating elimination of core defects
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- NORTHEASTERN UNIV
- Publication Date
- 2019-11-29
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the field of large-section billet production, specifically a high-quality casting billet production method that comprehensively utilizes continuous casting billet soft reduction technology and hot core high-temperature high-reduction rolling technology to carry out low macro segregation and shrinkage cavity defects . Background technique
[0002] Usually, rolled products such as high-quality large cross-section bars are produced by hot rolling with blooms as raw materials, so the quality control of billets in continuous casting production plays a decisive role in the quality of final steel products. The main defects of the bloom are central shrinkage cavity, porosity and segregation, etc. If the defects in the core of the billet cannot be controlled in the continuous casting production and eliminated in the hot rolling production, central cracks and network and banded structure defects will occur , may have adverse effects on ...