Production method of austenitic stainless steel band used for liquid crystal display back light

A technology of austenitic stainless steel and liquid crystal display, applied in metal rolling, manufacturing tools, contour control, etc., can solve the problems of large fluctuations in the surface roughness of stainless steel strips, low production efficiency of stainless steel strips, poor shape of stainless steel strips, etc. Achieve the effects of reducing abrasion, increasing service life and increasing wear resistance

Inactive Publication Date: 2018-09-21
ZHEJIANG YONGJIN METAL TECHONLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process mainly has the following disadvantages: (1) The surface roughness of the stainless steel strip fluctuates greatly, and the glossiness varies greatly
(2) The surface hardness of the roll is low, resulting in frequent change of work rolls during the production process, and the production efficiency of stainless steel strip is low
(3) The shape of the stainless steel strip is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment one: a kind of preparation method of the extremely thin austenitic stainless steel band with light surface, comprises the steps:

[0023] Step 1. Production of precision-controlled work rolls: first process the work rolls of the rolling mill until their surface roughness Ra is 0.1-0.2 μm, and then use laser texturing equipment to make roughness Ra1.6-2.0 μm and surface hardness HV700-900 precise control work roll;

[0024] Step 2. Preliminary rolling: using a 20-high precision cold rolling unit, rolling the hot-rolled stainless steel raw material with a thickness of 2.8-3.0 mm into austenitic stainless steel with a thickness of 0.6-0.8 mm and a surface roughness Ra of 0.3-0.5 μm bring;

[0025] Step 3, bright annealing: the gained austenitic stainless steel band in the step 2 carries out rapid cooling after being annealed by the bright annealing furnace, obtains the austenitic stainless steel band;

[0026] Step 4, finish rolling: Utilize the 20-high precis...

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PUM

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Abstract

The invention discloses a production method of an austenitic stainless steel band used for a liquid crystal display back light. Through six working procedures of precisely-controlled work roll production, blooming, bright annealing, finish rolling, bright annealing and withdrawal and strengthening, the austenitic stainless steel band used for the liquid crystal display back light is prepared, wherein the surface glossiness GS=280-300 + / -10 GU, the surface roughness Ra=1.1-1.3 + / -0.05 mum, and the inequality is smaller than or equal to 0.8 mm / M. According to the method, precisely-controlled work rolls are adopted by the last pass in the finish rolling process, and in each of the working procedures of the production process, the surface roughness of the stainless steel band is controlled, sothat the product cold rolling production efficiency is greatly improved; and for the prepared austenitic stainless steel band used for the liquid crystal display back light, indexes such as the surface roughness, the glossiness and the shape of the stainless steel band are improved.

Description

technical field [0001] The invention relates to a manufacturing method of an austenitic stainless steel strip. Specifically relate to a kind of manufacturing method of austenitic stainless steel band for liquid crystal display backlight plate Background technique [0002] The display device of the liquid crystal display itself is transparent and does not emit light, so a backlight plate made of austenitic stainless steel is needed to assist. Some surface and physical performance indicators such as gloss, roughness, unevenness, and hardness of the backlight plate made of austenitic stainless steel strip have a direct impact on the relevant performance of the liquid crystal display. The traditional manufacturing method of austenitic stainless steel strips for LCD backlight panels uses sandblasting equipment to sandblast the work rolls of the rolling mill to make the surface of the rolls have a certain roughness, and then use the sandblasted rolls to roll the stainless steel s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/30B21B15/00B21B37/48B21B37/58B21B37/46B21B37/28
CPCB21B1/222B21B1/30B21B15/00B21B37/28B21B37/46B21B37/48B21B37/58B21B2001/221
Inventor 贲海峰朱伟毛忠亮陈剑伟
Owner ZHEJIANG YONGJIN METAL TECHONLOGY CO LTD
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