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Method and system for producing cold formed steel in continuous casting and rolling manner

A continuous casting and rolling, cold forming technology, applied in the direction of metal rolling, etc., can solve the problems of production speed and product quality, affect product quality, and numerous processes, and achieve the effects of improving efficiency, reducing heat loss, and reducing costs

Pending Publication Date: 2019-07-12
CISDI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method and system for producing cold-formed steel by continuous casting and rolling, which is used to solve the problems of uncoiling and strip-threading of cold-formed steel in the prior art, which have many processes And discontinuous, the production speed and product quality are easily affected by the front and rear processes, thus affecting the final product quality and other issues

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  • Method and system for producing cold formed steel in continuous casting and rolling manner
  • Method and system for producing cold formed steel in continuous casting and rolling manner
  • Method and system for producing cold formed steel in continuous casting and rolling manner

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Embodiment 1

[0061] In this embodiment, a short-flow, full-continuous production method is used to produce cold-formed steel.

[0062] Such as figure 1 As shown, the production system includes a continuous casting machine 1, a high-pressure water rough descaling device 2, a rough rolling unit 3, a pendulum shear 4, a waste product pushing device 5, a first flying shear 6 (in this embodiment, a drum flying shear), an induction Heating furnace 7, high-pressure water descaling device 8, finishing rolling unit 9, post-rolling cooling device 10, second flying shear 11, air-cooling roller table 12, cold forming unit 13, each device is connected in sequence along the rolling axis.

[0063] In terms of mass percentage, the chemical composition of cold-formed steel raw materials is: C 0.11%, Mn 0.23%, Si 0.09%, P 0.01%, S 0.005%, Als 0.02%, and the balance is Fe and impurities.

[0064] The molten steel with the above composition is cast into a slab in the continuous casting machine 1, the continuou...

Embodiment 2

[0071] In this embodiment, a short-flow, full-continuous production method is used to produce cold-formed steel.

[0072] Such as figure 2 As shown, the production system includes a continuous casting machine 1, a high-pressure water rough descaling device 2, a rough rolling unit 3, a pendulum shear 4, a waste product pushing device 5, a first flying shear 6 (in this embodiment, a drum flying shear), a high-pressure The water polishing descaling device 8, the finishing rolling unit 9, the post-rolling cooling device 10, the second flying shear 11, the air cooling roller table 12, and the cold forming unit 13 are connected in sequence.

[0073] In terms of mass percentage, the chemical composition of cold-formed steel raw materials is: C 0.15%, Mn 1.26%, Si 0.14%, P 0.015%, S 0.01%, N 0.01%, Als 0.015%, and the balance is Fe and impurities.

[0074] The molten steel with the above composition was cast into billets in the continuous casting machine 1, the casting speed was sta...

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Abstract

The invention provides a method and system for producing cold formed steel in a continuous casting and rolling manner. The method comprises the step that a cast blank output by a continuous casting machine is subjected to rough rolling, precision rolling, cooling, air cooling and cold forming treatment, and the cold formed steel is obtained. According to the method and the system, a continuous casting and rolling production line and a cold formed steel production line are grouped and connected, the structural steel is produced by adopting the short-flow complete continuous method, and direct cold forming machining is carried out. The structural arrangement is compact, the technological process is short, and the investment is less. The interface among traditional continuous casting, hot rolling and downstream working procedures is broken through, and effective connecting among continuous casting, hot rolling and the downstream working procedures is achieved. The production line fully utilizes waste heat of the cast blank to carry out rolling, a heating device is not arranged, or arranged less, energy is saved, and finally the purposes of simplifying the technology, reducing the costand improving the efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of continuous casting and rolling of iron and steel, in particular to a method and system for producing cold-formed steel through continuous casting and rolling. Background technique [0002] Continuous casting and rolling technology is used to realize endless rolling. Compared with traditional hot continuous rolling, it has the advantages of compact process, high efficiency and energy saving. Tension control makes the continuous casting and rolling products not only have extremely high dimensional accuracy, but also have stable mechanical properties. It is the preferred technology for building energy-saving and environment-friendly steel production lines. However, the application of continuous casting and rolling by iron and steel enterprises in various countries is limited to the production of thin strip steel. When thin slab continuous casting and rolling is used to produce thin strip steel, due to the t...

Claims

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Application Information

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IPC IPC(8): B21B1/46C22C38/02C22C38/04
CPCB21B1/466C22C38/02C22C38/04
Inventor 韩会全王万慧
Owner CISDI RES & DEV CO LTD
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