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Hot-rolled patterned steel sheet production method

A production method and patterned plate technology, applied in the field of hot-rolled plate production technology, can solve the problems of high rolling pressure, difficult to control plate shape, affecting output and quality, etc., and achieve a good plate shape, beautiful appearance and improved quality. Effect

Inactive Publication Date: 2005-06-22
宝钢集团上海梅山有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the maximum engraving depth of all patterned rolls in domestic hot rolling production of patterned plates is generally 2.8mm. Using this patterned roll, the reduction rate of the patterned roll frame is 22-25%, so as to ensure that the rolled thickness is 20% of the substrate thickness. The disadvantage of this rolling process is that the rolling pressure is obviously too large, the plate shape is not easy to control, and the pattern of the pattern roller often peels off, resulting in the failure of the pattern roller; and the pattern plate with a thickness of less than 4.0mm is difficult to produce , and affect yield and quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: adopt following concrete process method when rolling checkered plate:

[0012] 1. Descaling system: 1 set of VSB rollers, 1 set of R1 rollers, 1 set of F0 rollers;

[0013] 2. The exit temperature of rough rolling is controlled at 1100°C;

[0014] 3. The exit temperature of finish rolling is controlled at 900°C;

[0015] 4. The cooling water between the finishing stands is closed;

[0016] 5. The engraving depth of the pattern roller increases from 2.8mm to 4mm.

[0017] Adopting the pattern roll stand of the present invention, the reduction rate is reduced to 14%, and the pattern plate rolled out has a beautiful appearance, and the height of the pattern exceeds 20% of the base plate, which meets the national standard; because the reduction rate is similar to that of rolling a flat plate, the plate shape is relatively small. Good; the rolling pressure is significantly reduced, and the minimum production thickness can reach 2.5mm; the rolling shift produ...

Embodiment 2

[0018] Example 2: The exit temperature of rough rolling is controlled at 1070°C; the exit temperature of finish rolling is controlled at 890°C; the reduction rate is 13%, and the rest are the same as in Example 1.

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Abstract

This invention relates to a hot rolled pattern production method, which comprises the following steps: improving the temperature and optimizing scale removal system to improve the rolling exit temperature and steel plastic property and the pattern shaping property; enlarging the pattern process deepness to increase the pattern area and improve the pattern shaping property so to improve the pattern sheet height and lower the rack screw-down rate of the pattern.

Description

1. Technical field [0001] The invention relates to a production process of a hot-rolled plate, in particular to a production method of a hot-rolled checkered plate. 2. Background technology [0002] At present, the maximum engraving depth of all patterned rolls in domestic hot rolling production of patterned plates is generally 2.8mm. Using this patterned roll, the reduction rate of the patterned roll frame is 22-25%, so as to ensure that the rolled thickness is 20% of the substrate thickness. The disadvantage of this rolling process is that the rolling pressure is obviously too large, the plate shape is not easy to control, and the pattern of the pattern roller often peels off, resulting in the failure of the pattern roller; and the pattern plate with a thickness of less than 4.0mm is difficult to produce , and affect yield and quality. 3. Contents of the invention: [0003] The present invention proposes a new hot-rolled checkered plate production method in order to red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D13/04
Inventor 李欣波
Owner 宝钢集团上海梅山有限公司
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