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A stretch-bending straightening process for stainless steel cold-rolled strip

A technology of stretch bending straightening and stainless steel, which is applied in the field of metal material production and processing, can solve the problems of electronic products or mobile phones and other internal components that cannot be assembled normally, affect the performance and overall service life, and achieve the elimination of plate defects and improve The effect of improving the quality of the plate shape and improving the performance of deep processing

Active Publication Date: 2021-06-18
天津冶金集团天材科技发展有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the field of electronic information, especially in the practical application of mobile phones, precision stainless steel strips are placed in mobile phones as core plates or protective plates after stamping. The shape of precision stainless steel strips is a key factor affecting the stamping and assembly of mobile phone parts. If the plate type does not meet the requirements of use, it will cause the internal components of electronic products or mobile phones to not be assembled normally, resulting in failure to work normally and affecting their performance and overall service life

Method used

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  • A stretch-bending straightening process for stainless steel cold-rolled strip
  • A stretch-bending straightening process for stainless steel cold-rolled strip
  • A stretch-bending straightening process for stainless steel cold-rolled strip

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specific Embodiment 2

[0025] A kind of stretch-bending straightening process of stainless steel cold-rolled strip realizes steps as follows:

[0026] Fix the stainless steel cold-rolled strip coil with a thickness of 0.2mm and a hardness of 280HV to the uncoiler, and use an automatic traction device to install it sequentially through the brake S-roller group, bending equipment, and traction S-roller group, and then fix the strip head to the winder ;Set uncoiler tension to 45N / mm 2 , set the tension of the brake S-roller group to 140N / mm 2 , the entrance of the bending unit is set to -1.6mm, the elongation of the strip is set to 0.3%, and the tension of the winder is set to 45N / mm 2 , the processing speed is set to 70m / min.

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Abstract

The invention provides a stretch-bending straightening process for stainless steel cold-rolled strips. Using stretch-bending straightening equipment, for stainless steel cold-rolled strips of different sizes and hardnesses, the tension of the braking S-roller group is adjusted to change the entrance of the bending unit. Angle and elongation of the strip can be used to correct the flatness of the strip; compared with the existing technology, this process can meet the technical requirements for the flatness of the stainless steel cold-rolled strip, effectively eliminate the shape defects, and improve the flatness of the strip. Model quality, improve product deep processing performance, thereby greatly improving product yield.

Description

technical field [0001] The invention relates to a stretch-bending straightening process of a precision stainless steel cold-rolled strip, belonging to the field of metal material production and processing. Background technique [0002] In recent years, with the rapid development of the national electronic information industry and basic engineering construction, the rapid development of the metal industry has been driven, especially the development of high-precision stainless steel strips. In order to achieve the goal of high precision, intelligence and light weight of electronic products, the electronics manufacturing industry has put forward higher requirements for the quality of high-precision stainless steel strips, especially for the dimensional accuracy, surface quality and shape of precision strips. The indicator requirements in this aspect have been raised to a new height. [0003] In the field of electronic information, especially in the practical application of mob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D1/02
CPCB21D1/02
Inventor 郭琛韩萍史付悦张鹏张泽
Owner 天津冶金集团天材科技发展有限公司
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