A method for shape control of steel plate on-line solid solution treatment

Abstract

The invention relates to a plate shape control method for online solution treatment of steel plates and belongs to the technical field of metallurgy. The plate shape control method is used for solving the bottleneck problem that the shapes of steel plates are poor in the application of online solution treatment technology. An overall rolling type oblique spraying cooling device and a follow-up type upper compression roller system capable of blocking water are designed. A reverse steel throwing technique is adopted, a three-dimensional full flow control technology is applied, and the good plate shapes of the steel plates subjected to online solution treatment are ensured in the process of cooling after rolling. The plate shape control method can not only be used for online solution treatment of the steel plates but also be applied to the process needing quick cooling after rolling and even the off-line quenching process. The plate shape control method can be widely applied to the field of cooling processes and production control after the steel plates are rolled.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and relates to the control of plate shape in on-line solid solution treatment after steel plate rolling. Background technique [0002] Solution heat treatment refers to the heat treatment process in which the alloy is heated to a high-temperature single-phase region and maintained at a constant temperature, so that the excess phase is fully dissolved into the solid solution and then rapidly cooled to obtain a supersaturated solid solution. [0003] The traditional solution heat treatment of steel plate is to use heat treatment equipment separate from the rolling mill for off-line heat treatment, which requires rapid cooling after reheating. This production process not only increases equipment investment, but also has many processes and a long production cycle, which leads to an increase in the cost of steel, which cannot meet the fast-paced production of large quantities, and greatly restricts...

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide a shape control method for on-line solution treatment of steel plates, aiming at the bottleneck problem of poor shape of steel plates in the application of on-line solution treatment technology, by designing an integral rolling type oblique spray cooling device and The water-retaining and follow-up upper pressure roll system adopts the process method of reverse steel throwing and the application of three-dimensional full flow control technology to ensure that the online solid solution treated steel plate has a good shape during the cooling process after rolling. It can not only be used for On-line solution treatment of steel plates, and can be applied to processes that require rapid cooling after rolling, and even off-line quenching processes

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