Control method for surface color difference of precision stainless strip steel

A control method and strip technology, applied in the direction of roll speed control, temperature control, elongation control, etc., can solve the problems of poor surface consistency, heavy surface color difference, uneven roughness, etc., to expand high-end industries, improve removal conditions, The effect of meeting diverse needs

Active Publication Date: 2021-01-29
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

However, the traditional stainless steel precision strip production is still in a normalized production, and there are oft

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052]First, execute step S1, material selection. 304 stainless steel cold-rolled coils with a thickness of 0.6mm and a width of 610mm can be used as raw materials, and the thickness of the finished steel strip after cold rolling is 0.2mm.

[0053] In the next step, step S2 is executed to implement rolling in the first rolling pass.

[0054] First of all, the raw material of stainless steel cold-rolled steel coils with a thickness of 0.6mm can be rolled in the first rolling pass by using a SUNDWIG four-column twenty-high rolling mill. In the first rolling process, the British BP rolling oil can be used for lubrication and cooling, and the temperature of the rolling oil is 40°C; the method of multi-pass and large reduction rate can be used to cold-roll through five passes to 0.22mm, among which, the rolling speed of the first pass can be 150m / min, the first working roll can use drawing rolls, the roll surface roughness Ra 1.0μm, and the first two passes of the middle pass can ...

Embodiment 2

[0060] First, execute step S1, material selection. 301 stainless steel cold-rolled coils with a thickness of 0.8mm and a width of 610mm can be used as raw materials, and the thickness of the finished steel strip after cold rolling can be 0.3mm.

[0061] In the next step, step S2 is executed to implement rolling in the first rolling pass.

[0062] First of all, the stainless steel cold-rolled coil raw material with a thickness of 0.3mm can be rolled with a SUNDWIG four-column twenty-high rolling mill, and the British BP rolling oil can be used for lubrication and cooling during rolling. The temperature of the rolling oil is 44°C; The method of multi-pass and small reduction ratio, cold rolling to 0.33mm after six passes, among which, the rolling speed of the first pass is 150m / min, the first working roll can use drawing rolls, and the roll surface roughness is Ra1 .0μm, sandblasting rolls with a roughness Ra1.1μm can be used as the second work roll for the first two passes of ...

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Abstract

The invention discloses a control method for surface color difference of precision stainless strip steel. The control method comprises the steps: S1, selecting materials; S2, performing rolling of thefirst rolling process; S3, carrying out rolling of the finished product rolling process; and S4, conducting degreasing cleaning on a steel coil obtained after rolling of the finished product rollingprocess is completed. By means of the rolling mode of completely removing a pickling passivation film, a precision surface with the uniform and consistent surface is obtained in the subsequent machining process, and therefore the defects that removing of the pickling passivation film on the surface of a steel coil raw material is poor, the surface color difference is large, and roughness is unevenare overcome.

Description

technical field [0001] The invention relates to the technical field of precision stainless steel strips, in particular to a method for controlling surface color difference of precision stainless steel strips. Background technique [0002] At present, the product requirements of precision stainless steel are diversified, and high-end products have fine and strict requirements on the surface product characteristics of the product. However, the traditional stainless steel precision strip production is still in a normalized production, and defects such as heavy surface color difference and poor surface consistency (surface color difference, uneven roughness) often occur. [0003] Therefore, there is a need in the art for a method for controlling the surface color difference of precision stainless steel strips, which can eliminate or at least alleviate all or part of the defects in the above-mentioned prior art. Contents of the invention [0004] For the above-mentioned techni...

Claims

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Application Information

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IPC IPC(8): B21B37/48B21B37/56B21B37/74B21B37/46B21B37/00B21B15/00B21B45/02B21B1/22C21D1/26C21D9/52C21D1/74C21D8/02
CPCB21B37/48B21B37/56B21B37/74B21B37/46B21B37/00B21B15/00B21B45/0269B21B1/22C21D1/26C21D9/52C21D1/74C21D8/0221B21B2267/10B21B2037/002B21B2015/0057B21B2015/0071B21B2001/221B21B2265/10
Inventor 任岩武显斌李学斌韩晓冬段浩杰罗纪平
Owner SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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