A billet quality control method combining continuous casting process and light reduction technology
A quality control method and technology of continuous casting process, which is applied in the field of continuous casting in the metallurgical industry, can solve problems that plague continuous casting production, achieve the effects of improving reduction efficiency and process effect, improving service life, and prolonging service life
Active Publication Date: 2022-01-21
河钢乐亭钢铁有限公司
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Problems solved by technology
[0004] However, how to reasonably match the continuous casting process and soft reduction technology to improve the internal quality of the slab is still one of the technical problems that plague the current continuous casting production
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[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are A small part of the implementation cases of the present invention, rather than all implementation cases, based on the implementation cases in the present invention, all other implementation cases obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention .
[0020] A casting slab quality control method combining continuous casting process and soft reduction technology, characterized in that it includes the following steps: (1) Quantitative control of the shrinkage compensation area and the liquid core backflow area under soft reduction; (2 ) ...
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The invention relates to a billet quality control method combining a continuous casting process and a light reduction technology, and belongs to the technical field of continuous casting in the metallurgical industry. The technical solution is: (1) Quantitative control of the shrinkage compensation area under soft reduction and the liquid core backflow area under soft reduction; (2) Quantitative calculation of billet shrinkage; (3) Strong cooling process in the area of soft reduction; (4 ) Suitable superheat casting process; (5) Quantitative distribution of light reduction. The beneficial effects of the invention are: correcting the traditional technical prejudice, without any cost input and technical transformation, not only well controlling the segregation and loose defects of the core of the slab, but also taking into account the stress of the continuous casting machine equipment, Extend the service life of continuous casting machine equipment. The reduction efficiency is increased by more than 30%, the segregation and loose defects in the core of the slab are controlled below 0.01%, and the service life of the equipment in the reduction area is increased by more than 2 times.
Description
technical field [0001] The invention relates to a billet quality control method combining a continuous casting process and a light reduction technology, and belongs to the technical field of continuous casting in the metallurgical industry. Background technique [0002] In continuous casting production, the segregation and porosity of the slab have an important impact on the quality and performance of the plate, especially on the quality and performance of high-grade steel. The dynamic soft reduction technology compresses and shrinks the liquid core at the end of solidification, hinders the enrichment of segregated elements, compensates the amount of solidification shrinkage, controls and reduces the occurrence of central segregation, and can effectively improve the internal quality of the slab. However, the solidification shrinkage and deformation of the slab is a complex process. The existing soft reduction technology only focuses on the parameter optimization of the light...
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Login to View More IPC IPC(8): B22D11/12B22D11/16B22D11/22
CPCB22D11/1206B22D11/16B22D11/22
Inventor 汪洪峰张大勇李立勋
Owner 河钢乐亭钢铁有限公司