Ultra-thin and ultra-wide stainless steel strip rolling process

A stainless steel strip, ultra-thin technology, applied in the direction of metal rolling, contour control, etc., can solve the problems of low yield of narrow ultra-thin stainless steel, unable to meet the use requirements, low market application value, etc., to achieve high quality, solve the problem of Type difference and stable surface quality

Active Publication Date: 2020-12-08
SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The yield of narrow ultra-thin stainless steel is low, the production cost is high, and the market application value is low
The production of ultra-thin and ultra-wide stainless steel precision strip is still the bottleneck problem in the precision stainless steel industry, and problems such as poor shape, surface defects, and thickness tolerances that cannot meet the use requirements often occur

Method used

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  • Ultra-thin and ultra-wide stainless steel strip rolling process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A cold-rolled stainless steel coil with a thickness of 0.1mm and a width of 650mm is selected as the raw material, and the target thickness of the finished steel strip is 0.025mm.

[0047] The stainless steel cold-rolled coil with a thickness of 0.1mm is rolled by a 20-roller mill. During rolling, BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. It is rolled to 0.025mm by 7 passes. The rolling speed of each pass is 160m / min, the deformation of each pass is 24%, the rolling speed of other passes is 350m / min, the deformation of each pass is within 18.6%, the rolling speed of the finished product is 150m / min, The secondary deformation is 8.5%.

[0048] Tension control adopts direct tension control, and the first pass entrance tension is set to 100N / mm according to the amount of deformation 2 , the outlet tension is controlled at 215N / mm 2 , the entrance tension of the remaining passes increases by about 30N / mm 2 , the outle...

Embodiment 2

[0055] A cold-rolled stainless steel coil with a thickness of 0.08mm and a width of 650mm is selected as the raw material, and the target thickness of the finished steel strip is 0.03mm.

[0056] The raw material of stainless steel cold-rolled coil with a thickness of 0.08mm is rolled by a 20-roller mill. During rolling, rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. The rolling speed of each pass is 160m / min, and the deformation of each pass is 25%. The rolling speed of other passes is 260m / min, and the deformation of each pass is within 18.3%. The secondary deformation is 8.3%;

[0057] Tension control adopts direct tension control, and the first pass entrance tension is set to 100N / mm according to the amount of deformation 2 , the outlet tension is controlled at 215N / mm 2 , the entrance tension of the remaining passes increases by about 26N / mm 2 , the outlet tension increases by about 30N / mm 2 , the entrance tension of the f...

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Abstract

The invention discloses an ultra-thin ultra-wide stainless steel band rolling technology. The ultra-thin ultra-wide stainless steel band rolling technology includes the steps that (1) materials are selected, specifically, an annealed stainless steel band raw material which is 0.1mm thick is selected; (2) roller system configuration is performed, specifically, a roller system is selected according to the thickness of a finished product, and the convexity of a transmission roller, the taper of a middle roller and the diameter of a working roller are determined; and (3) rolling is performed. By means of the ultra-thin ultra-wide stainless steel band rolling technology, roller system configuration is performed according to the thickness of the finished product, thus roller system configuration of a rolling mill meets the machining demands, through accurate distribution of rolling tension and the press amount of passes, the rolled finished product is free of rib strip lines and floccules, small fluctuation of the thickness tolerance of a stainless steel band is guaranteed, the plate shape flatness and straightness are good, the surface quality is stable, the production bottlenecks such as poor plate shape, large thickness tolerance fluctuation and poor surfaces in the subsequent machining process are solved, and the ultra-thin ultra-wide stainless steel band rolling technology can adapt to industrial large-batch production and meet the requirements of high quality, high yield and low cost of an ultra-thin ultra-wide stainless steel band.

Description

technical field [0001] The invention relates to the technical field of steel strip processing, in particular to an ultra-thin and ultra-wide stainless steel strip rolling process. Background technique [0002] With the development of science and technology, various products are developing in the direction of small, light and high performance, and the demand for new materials is becoming stronger and stronger. In this context, the stainless steel industry is also developing in the direction of ultra-thin, super-strong and super-hard. [0003] At present, the thickness of most precision strip steel products is more than 0.05mm, and some precision strip steel products with a thickness of less than 0.05mm also belong to narrow ultra-thin stainless steel with a width of less than 400mm. The yield of narrow ultra-thin stainless steel is low, the production cost is high, and the market application value is low. The production of ultra-thin and ultra-wide stainless steel precision...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/22B21B37/30
CPCB21B1/22B21B37/30
Inventor 罗纪平刘玉栋李学斌段浩杰韩晓冬员朝波张艳霞
Owner SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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