Plate shape control method for online solution treatment of steel plates

A solid solution treatment and shape control technology, which is applied in the field of metallurgy, can solve problems such as poor shape of steel plates, achieve good shape, save carbon emissions and a lot of energy consumption, and have compact and energy-saving cooling devices

Active Publication Date: 2016-06-22
BAOSHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Plate shape control method for online solution treatment of steel plates
  • Plate shape control method for online solution treatment of steel plates
  • Plate shape control method for online solution treatment of steel plates

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Experimental program
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Embodiment

[0071] The main parameters of a specific embodiment of the cooling system after rolling for on-line solid solution of the present invention are as follows:

[0072] 1) Roller technical parameters (refer to image 3 shown)

[0073]

[0074] 2) Technical parameters of the spray box (refer to figure 1 , figure 2 shown)

[0075] Nozzle distance from roller surface: 100mm

[0076] Spray angle: 30°

[0077] 3) Technical parameters of medium pressure water system

[0078] 2 groups each up and down

[0079] Water inlet pressure 1.0MPa

[0080] The total water volume on the spray box is about 0~495m 3 / h

[0081] The lower spray box is about 0~623m 3 / h

[0082] 4) Technical parameters of low pressure water system

[0083] Quantity 14 groups up and down

[0084] Water inlet pressure 0.5MPa

[0085] The total water volume on the spray box is about 0~1680m 3 / h

[0086] The lower spray box is about 0~2116m 3 / h

[0087] 5) Valve group design and flow setting

[008...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D11/00C21D8/02B21B37/44
Inventor 吴建峰王笑波刘晔张庆峰朱健桦张爱文
Owner BAOSHAN IRON & STEEL CO LTD
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