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A kind of stainless steel plate and its manufacturing method

A technology of stainless steel plate and manufacturing method, which is applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., to achieve the effects of increased hardness, high copy rate, and good wear resistance

Active Publication Date: 2020-07-03
宁波奇亿金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the improvement of the aesthetic requirements of the steel plate, the research on the surface quality of the steel plate has entered a new stage and faced new problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The 430 hot-rolled stainless steel plate with a thickness of 3mm is selected as the raw material, and it is sent to a reversible 20-high rolling mill for rolling. First, a work roll with a roughness of about 0.5μm is used for rolling. When the thickness of the steel plate is rolled to 0.35mm , Carry out the last pass of rolling. In the last pass, work rolls with a roughness of 3.0μm are used for rolling, the reduction rate is controlled at about 8%, and the rolling speed is controlled at about 100m / min. After the rolling is completed, a cold-rolled steel sheet is obtained. After testing, the average roughness of the cold-rolled steel sheet is 1.7 μm.

Embodiment 2

[0013] The 430 hot-rolled stainless steel plate with a thickness of 3mm is selected as the raw material, and it is sent to a reversible 20-high rolling mill for rolling. First, a work roll with a roughness of about 0.5μm is used for rolling. When the thickness of the steel plate is rolled to 0.35mm , Carry out the last pass of rolling. The last pass is rolled with work rolls with a roughness of 4.0 μm, the reduction rate is controlled at about 8%, and the rolling speed is controlled at 100m / min. After the rolling is completed, a cold-rolled steel sheet is obtained. After testing, the average roughness of the cold-rolled steel sheet is 1.9 μm.

Embodiment 3

[0015] The 430 hot-rolled stainless steel plate with a thickness of 3mm is selected as the raw material, and it is sent to a reversible 20-high rolling mill for rolling. First, a work roll with a roughness of about 1.0μm is used for rolling. When the thickness of the steel plate is rolled to 0.35mm , Carry out the last pass of rolling. The last pass is rolled with work rolls with a roughness of 3.7μm, the reduction rate is controlled at about 8%, and the rolling speed is controlled at 100m / min. After rolling, a cold-rolled steel sheet is obtained. After testing, the average roughness of the cold-rolled steel sheet is 1.8 μm.

[0016] The work rolls of Examples 1-3 were obtained through the following steps: (1) Treat the surface of the work roll with a grinding wheel to remove defects on the work roll surface; (2) Treat the surface of the work roll with laser texturing equipment, and adjust The output power of the laser texturing equipment obtains work rolls with different surfac...

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Abstract

The invention discloses a stainless steel plate and a manufacturing method thereof. The stainless steel plate is manufactured through the following steps that the stainless steel plate is subjected tocold rolling through a twenty-high rolling mill, the last pass of cold rolling is conducted through working rollers with the roughness average Ra being 3.0-3.4 [mu]m, and the steel plate with the roughness average Ra being 1.7-1.9 [mu]m is obtained after rolling. The surface of the stainless steel plate prepared through the manufacturing method is a matte surface uniform in brightness, and therefore good attractiveness is achieved.

Description

Technical field [0001] The invention relates to a stainless steel plate and a manufacturing method thereof. Background technique [0002] With the advancement of science and technology, people have put forward higher requirements for the surface quality of stainless steel. The surface micromorphology of the steel plate is prepared by the rolling transfer principle, that is, during the rolling process, the surface micromorphology of the roll is transferred to the strip steel through rolling plastic deformation. The surface micro morphology of the steel plate depends on the micro morphology of the work roll as the transfer mold, the rolling transfer process and the original surface micro morphology of the steel plate. [0003] For a long time, the research on the surface quality of steel plates has mainly focused on the two types of defects: foreign matter adhesion and damage. However, with the improvement of the aesthetics of steel plates, the research on the surface quality of st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/36B21B28/04B23K26/00B24B5/37
CPCB21B1/22B21B28/04B21B2001/221B24B5/37
Inventor 廖百祥戴军权
Owner 宁波奇亿金属有限公司
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