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Roll system preparation method and rolling method for rolling ultra-thin ultra-wide stainless steel products

A stainless steel, ultra-thin technology, applied in the direction of rolls, metal rolling, metal rolling, etc., can solve problems such as unsatisfactory use requirements, thickness tolerance, poor plate shape, etc., achieve small thickness tolerance fluctuations, product quality improvement, steel The effect of high coil yield

Active Publication Date: 2019-09-06
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

[0003] At present, the production of ultra-thin and ultra-wide stainless steel precision strips is still the bottleneck of the precision stainless steel industry. Problems such as poor shape, surface defects, and thickness tolerances that cannot meet the use requirements often occur.

Method used

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  • Roll system preparation method and rolling method for rolling ultra-thin ultra-wide stainless steel products
  • Roll system preparation method and rolling method for rolling ultra-thin ultra-wide stainless steel products
  • Roll system preparation method and rolling method for rolling ultra-thin ultra-wide stainless steel products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A stainless steel coil with a thickness of 0.08mm and a width of 650mm is selected as the raw material, and the thickness of the finished steel strip for rolling purpose is 0.02mm.

[0053] Firstly, the cold-rolled coil raw material with a thickness of 0.08mm is rolled on a 20-high rolling mill. During rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 39°C, and it is cold-rolled to 0.02mm after 8 passes. The rolling speed of the first seven passes is 300m / min, the rolling speed of the finished pass is 200m / min, the diameter of the work roll is 27mm, the rolling pressure of the whole process is 1100-1300KN, and the reduction rate of each pass is 10-30%.

[0054] The roll system configuration selects the designed roll system (that is, the roll system equipped in the above-mentioned roll system configuration method).

[0055] The main technical indicators of the products produced by the above process can reach: ...

Embodiment 2

[0060] A stainless steel coil with a thickness of 0.1mm and a width of 650mm is selected as the raw material, and the thickness of the finished steel strip for rolling purposes is 0.03mm.

[0061] Firstly, the cold-rolled coil raw material with a thickness of 0.1mm is rolled on a 20-high rolling mill. During rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C, and it is cold-rolled to 0.03mm after 8 passes. The rolling speed of the first seven passes is 350m / min, the rolling speed of the finished pass is 200m / min, the diameter of the work roll is 28mm, the rolling pressure of the whole process is 1000-1200KN, and the reduction rate of each pass is 10-30%.

[0062] The roller system configuration selects the designed roller system.

[0063] The main technical indicators of the products produced by the above process can reach:

[0064] 1) Thickness deviation: 0.03±0.002mm;

[0065] 2) Hardness (HV): 560—590HV;

...

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Abstract

The invention discloses a roll system preparation method and rolling method for rolling ultra-thin ultra-wide stainless steel products. The roll system preparation method comprises the following stepsthat the diameter of a working roll is set to be 25-28 mm; and the cone ratio of intermediate rolls is set to be 0.25%; and the convexity curve of the second intermediate rolls is set to be a function curve between the cos of 30-90 degrees. The rolling method comprises the following steps of 1) selecting, specifically, a stainless steel coil raw material with the thickness of 0.08 to 0.1mm and the width of more than 600 mm is selected; and 2) rolling, specifically, cold rolling is carried out for eight times until the thickness is 0.03mm or below, and the pressing rate at the next time is 10%-30%. According to the roll system preparation method and the rolling method for rolling the ultra-thin ultra-wide stainless steel products, the convexity of the second intermediate roll, the taper ofthe intermediate roll and the diameter of the working roll are limited, during rolling, the thickness tolerance fluctuation of the product is small, the flatness of the plate type is good, the rolling process is stable, the yield of the steel coil is high, the product quality is remarkably improved, the method is suitable for industrial mass production, and the high-quality requirement of the high-end industry of the precision stainless steel extremely thin strip is met.

Description

technical field [0001] The invention relates to the technical field of steel strip processing, in particular to a method for arranging a roll system and a rolling method for rolling ultra-thin and ultra-wide stainless steel products. Background technique [0002] At present, stainless steel precision strips are gradually moving towards the high-end market, and precision stainless steel is a high-end variety of stainless steel with high technical content and complex processes. Precision stainless steel has strict requirements on product characteristics such as dimensional tolerances, plate shapes, and surfaces. Ultra-thin and ultra-wide stainless steel (width ≥ 600mm, thickness ≤ 0.05mm) is produced through the cold rolling characteristics of cold deformation strengthening. During the manufacturing process, there will be obvious changes or fluctuations in the shape control and surface control, and even cause the entire roll to be scrapped. [0003] At present, the productio...

Claims

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Application Information

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IPC IPC(8): B21B1/22B21B27/02
CPCB21B1/22B21B27/021B21B2027/022
Inventor 王天翔李华罗纪平段浩杰武显斌刘玉栋任岩廖席员超波张艳霞
Owner SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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