A kind of cold rolling method of stainless steel strip and stainless steel strip

Abstract

The invention discloses a cold rolling method of a stainless steel strip. The cold rolling method comprises the following steps of putting a stainless steel strip blank on a cold rolling mill, carrying out laser welding on the stainless steel strip blank, carrying out six-time continuous cold rolling treatment on the stainless steel strip blank through the cold rolling machine, cleaning the stainless steel strip blank, and obtaining a stainless steel strip finished product with the thickness of 0.2mm-4 mm after the stainless steel strip blank is dried, cleaned, annealed, electrolyzed, acid-washed, straightened and leveled. The cold rolling mill used in the method comprises a working roller, a middle roller, a supporting roller and a side supporting roller; in the six-time continuous cold rolling process, an emulsion is applied along the radial direction of the working roller, the emulsion comprises 95-98% of water and 2-5% of rolling oil, and the flow of the emulsion is 2900-5500 L / min. The invention further discloses the stainless steel strip obtained by the method. According to the method, the rolling process is strictly controlled, the mechanical property of the rolled finishedproduct is good, and the system stability is good.

Description

technical field [0001] The invention relates to the technical field of stainless steel, in particular to a cold rolling method for a stainless steel strip and the stainless steel strip. Background technique [0002] Stainless steel strip is an extension of ultra-thin stainless steel plate. It is mainly a narrow and long steel plate produced to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. It is widely used in high-tech industries, IT industries, and Aviation and aerospace industries have high added value, but the rolling process is difficult to master, because internal stress will be generated inside the stainless steel strip after the initial rolling, which affects the effect of finishing rolling and has a great impact on the forming of the finished product. The finished products have different requirements on hardness, which increases the difficulty of the rolling process, the production efficiency is low, ...

AI Technical Summary

Problems solved by technology

[0002] Stainless steel strip is an extension of ultra-thin stainless steel plate. It is mainly a narrow and long steel plate produced to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. It is widely used in high-tech industries, IT industries, and Aviation and aerospace industries have high added value, but the rolling process is difficult to master, because internal stress will be generated inside the stainless steel strip after the initial rolling, which affects the effect of finishing rolling and has a great impact on the forming of the finished product. The finished products have different requirements on hardness, which increases the difficulty of rolling process, low production efficiency and low yield

[0003] Moreover, the thickness range of the stainless steel strip produced by the prior art is relatively narrow, usually 0.5-2.0mm, which cannot meet the requirements of different processing fields for stainless steel strips of different thicknesses.

In addition, the stainless steel strip produced by the existing technology is not ideal in shape, and the roughness is relatively large, resulting in dull surface and low grade

And the larger roughness will also affect the surface quality of the stainless steel strip

[0004] In addition, the production equipment of stainless steel strips is generally large in size and complex in equipment. How to ensure the balance of lubrication effect and temperature, so as to ensure the stable operation of the equipment, is also a difficulty in this field.

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