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Flexible roller contact type thin strip combined cooling method

A cooling method and a technology of flexible rollers, which are applied in the direction of workpiece cooling devices, furnaces, heat treatment equipment, etc., can solve the problems of uncontrollable cooling end temperature, difficult control of cooling speed, narrow application range of equipment, etc., and the method is simple and feasible, and the surface is clean , good effect of plate shape

Active Publication Date: 2022-06-28
ANHUI UNIVERSITY OF TECHNOLOGY +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is that in the cooling process of thin strips and ultra-thin strips, problems such as difficult control of cooling speed, narrow application range of equipment, inconspicuous cooling effect when strip thickness changes, and uncontrollable cooling end point temperature often occur.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] combine Figure 1-2 As shown, a flexible roller contact type thin strip combined cooling method in this embodiment is:

[0033] 1. The 201 stainless steel ultra-thin strip rolled to 0.04mm by the asynchronous reversing rolling mill 1 is rolled by the coiler on the coiling side of the rolling mill, and the rolled ultra-thin strip is placed at the entrance of the flexible roller spray composite segmented cooling device On the unwinding device 2 at the end, take the movable end of the ultra-thin coil and weld the lead tape. The lead tape is a 1mm thick ultra-thin strip that needs to be cooled. The cooling device is connected to the rewinding device 3 on the other side of the cooling device, and is curled on the rewinding device 3 for more than two turns to ensure that it will not fall off when tension is applied to the ultra-thin belt subsequently.

[0034] 2. The ultra-thin strip of 201 stainless steel with a thickness of 0.04mm adopts 7-stage combined cooling. The cooli...

Embodiment 2

[0041] combine Figure 1-2 As shown, a flexible roller contacting thin strip combined cooling method in this embodiment is as follows:

[0042] 1. The 304 stainless steel ultra-thin strip rolled to 0.005mm by the asynchronous reversing rolling mill is coiled by the coiler on the coiling side of the rolling mill, and the coiled ultra-thin strip is placed at the entrance of the flexible roller spray composite segment cooling device On the unwinding device at the end, take the movable end of the ultra-thin coil and weld the lead strip. The lead strip is a strip of the same steel grade as the ultra-thin strip with a thickness of 1mm that needs to be cooled, and the lead strip is passed through the entire flexible roller. The device is connected to the rewinding device 3 on the other side of the cooling device, and is wound on the rewinding device for more than two turns.

[0043] 2. The ultra-thin strip of 304 stainless steel with a thickness of 0.005mm adopts 3-stage combined co...

Embodiment 3

[0050] combine Figure 1-2 As shown, a flexible roller contacting thin strip combined cooling method in this embodiment is as follows:

[0051] 1. The 316 stainless steel ultra-thin strip rolled to 0.05mm by the asynchronous reversing rolling mill is coiled by the coiler on the coiling side of the rolling mill, and the coiled ultra-thin strip is placed at the entrance of the flexible roller spray composite segmented cooling device On the unwinding device at the end, take the movable end of the ultra-thin coil and weld the lead strip. The lead strip is a strip of the same steel grade as the ultra-thin strip with a thickness of 1mm that needs to be cooled, and the lead strip is passed through the entire flexible roller. The device is connected to the rewinding device on the other side of the cooling device, and is wound on the rewinding device for more than two turns.

[0052] 2. This ultra-thin strip is 316 stainless steel with a thickness of 0.05mm, and adopts 12-stage combin...

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Abstract

The invention discloses a flexible roller contact type thin strip combined cooling method, and belongs to the technical field of deep processing of steel and iron materials. According to the method, for a thin strip with the thickness of 0.005-0.05 mm, 3-12 sections of flexible roller cooling devices are used for cooling the thin strip till the final temperature ranges from 25 DEG C to 35 DEG C, cooling media in the 3-12 sections of flexible roller cooling devices are m sections of hot water, n sections of cold water and l sections of liquid nitrogen in sequence, a, b and c are natural numbers, and a + b + c is equal to 3-12. The composite sectional type sectional cooling can be used for the cooling stage of the heat treatment process of thin metal strips such as stainless steel and ultra-thin strips, the application range is wide, the cooling speed and the final cooling temperature can be controlled by controlling the concentration of the cooling medium and the spraying cooling gas of each section of cooling device, so that the surface of the cooled strip steel becomes clean, and the service life of the strip steel is prolonged. And meanwhile, a high-performance thin-specification strip product can be obtained.

Description

technical field [0001] The invention relates to the technical field of deep processing of iron and steel materials, in particular to a flexible roller contact type thin strip combined cooling method. Background technique [0002] At present, the main way to produce ultra-thin strips and ultra-thin strips is to roll 0.1-2mm strips into ultra-thin strips of 0.004-0.05mm through multi-roll mills or asynchronous rolling mills. Multi-roll mills are widely used in the production of extremely thin strips in industry. Among them, the Sendzimir 20-high mill has the best production efficiency and effect. The Sendzimir mill is composed of work rolls with small diameters and a huge work roll system. The structure is fine and complex, and the cost is high; in recent years, some universities and research institutes have also designed asynchronous rolling mills with asynchronous rolling as the research object. The stress of compression, shear and tension is formed in the area, thereby red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B45/02C21D1/30C21D1/74C21D9/00C21D9/52C21D11/00
CPCB21B45/0209B21B45/0218C21D9/52C21D9/0012C21D11/005C21D1/74C21D1/30B21B2045/0212
Inventor 宋孟陈守东陈旭阳刘相华黄贞益梁倩
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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