Method for rolling precise stainless-steel ultrathin steel belt

A technology of stainless steel and steel strip, applied in the direction of metal rolling, can solve the problems of large thickness tolerance fluctuation and poor shape, and achieve the effect of improving product quality, small fluctuation of product thickness tolerance, and solving the effect of poor shape

Active Publication Date: 2012-10-03
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] The existing stainless steel precision strip production is still in a normalized production. The rolling production of ultra-thin stainless steel strip is a major bottleneck i...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 304 cold-rolled stainless steel coils with a thickness of 0.3mm and a width of 610mm are selected as raw materials, and the thickness of the finished ultra-thin steel strip after cold rolling is 0.05mm.

[0018] First, the stainless steel cold-rolled coil raw material with a thickness of 0.3mm is rolled by a SUNDWIG four-column twenty-high rolling mill. During the rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. Multi-pass, The method of lowering the reduction rate, after 7 passes of cold rolling to 0.1mm, the rolling speed of the first pass is 80m / min, the surface roughness of the work roll is Ra0.25um, and the rolling speed of the middle pass is 300m / min , The rolling speed of the finished product pass is 200m / min.

[0019] After cold rolling, the steel coil passes through a vertical continuous bright annealing furnace at a temperature of 1130°C±5°C at a speed of 50m / min for solution treatment, and us...

Embodiment 2

[0027] The 301B cold-rolled stainless steel coil with a thickness of 0.3mm and a width of 610mm is selected as the raw material, and the thickness of the finished ultra-thin steel strip after cold rolling is 0.05mm.

[0028] First, the stainless steel cold-rolled coil raw material with a thickness of 0.3mm is rolled by a SUNDWIG four-column twenty-high rolling mill. During the rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. Multi-pass, The method of lowering the reduction rate, after 8 passes of cold rolling to 0.1mm, the rolling speed of the first pass is 80m / min, the surface roughness of the work roll is Ra0.25um, and the rolling speed of the middle pass is 300m / min , The rolling speed of the finished product pass is 200m / min.

[0029] After cold rolling, the steel coils pass through a vertical continuous bright annealing furnace at a temperature of 1140°C±5°C at a speed of 55m / min for solution treatment, a...

Embodiment 3

[0037] The 301B cold-rolled stainless steel coil with a thickness of 0.4mm and a width of 610mm is selected as the raw material, and the thickness of the finished ultra-thin steel strip after cold rolling is 0.08mm.

[0038] First, the stainless steel cold-rolled coil raw material with a thickness of 0.4mm is rolled by a SUNDWIG four-column 20-high rolling mill. During the rolling, the British BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. The method of lowering the reduction rate, after 7 passes of cold rolling to 0.15mm, the rolling speed of the first pass is 80m / min, the surface roughness of the work roll is Ra0.20um, and the rolling speed of the middle pass is 300m / min , The rolling speed of the finished product pass is 200m / min.

[0039] After cold rolling, the steel coil passes through a vertical continuous bright annealing furnace at a temperature of 1130°C±5°C at a speed of 50m / min for solution treatment, and uses high-p...

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Abstract

The invention relates to a method for rolling a precise stainless-steel ultrathin steel belt, comprising the following steps: 1, carrying out an initial rolling procedure by stainless-steel cold-rolling raw material of 0.3-05mm in thickness and carrying out cold rolling for many times so as to obtain 0.1-0.2 mm of a finished product thickness, wherein in the initial rolling procedure, a rolling oil temperature is 35-45 degrees centigrade; rolling machine working roller surface roughness Ra is 0.15-0.25 microns; 2, carrying out solid dissolving treatment to a steel roll after the first cold rolling at a speed of 35-45m/min; and 3, carrying out the second cold rolling to a cold-rolling steel belt after the solid dissolving treatment; rolling 0.1-0.2mm of the steel belt for many rolling procedures so as to obtain 0.05-0.1mm of the finished product thickness; wherein a rolling oil temperature is 28-40 degrees centigrade, working roller roughness Ra is 0.15-0.25 microns; a rolling speed in a first rolling procedure is 80-100m/min; the rolling speed in other rolling procedures is 150-200m/min; and tension is controlled within 500-600N/mm<2>.

Description

Technical field: [0001] The invention belongs to the field of steel rolling, and in particular relates to a rolling method of a precision stainless steel ultra-thin steel strip. The ultra-thin steel strip in the invention is a steel plate with a thickness of ≤0.1 mm. Background technique: [0002] At present, the stainless steel industry is gradually moving towards the high-end market, so the requirements for high, fine and fine stainless steel products are more stringent, and more stringent requirements are required for product characteristics such as dimensional tolerances, plate shapes, and surfaces. [0003] The existing stainless steel precision strip production is still in a normalized production. The rolling production of ultra-thin stainless steel strip is a major bottleneck in the industrialized mass production of precision stainless steel ultra-thin strip products. There are often problems with poor shape and large fluctuations in thickness tolerances. defect. I...

Claims

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Application Information

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IPC IPC(8): B21B1/28
Inventor 徐书峰董贤帮刘玉栋罗纪平梁欣亮
Owner SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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