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Production method for improving surface quality of stainless steel

A surface quality and production method technology, applied in the field of stainless steel rolling, can solve the problems affecting the uniformity and restriction of the stainless steel surface, and achieve the effect of uniform surface, elimination of surface streaks and uniform surface

Inactive Publication Date: 2018-04-10
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rough surface striations affect the uniformity of the stainless steel surface, which restricts its application in high-end industries

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] This embodiment is realized through multi-pass rolling on a 20-high reversing rolling mill. Main operating points of the present invention are as follows:

[0008] 1. Deformation design before rolling: the overall total deformation of rolling does not exceed 60-80%.

[0009] 2. Inspection equipment before rolling: the 20-roller system is matched with each other, check that the surface of the oil-scraping roll and the shape roll is normal, the thickness gauge shows accurately, and the rolling oil is clear and free of impurities.

[0010] 3. The first rolling pass: the deformation is 23%, the roughness of the work rolls of the rolling mill is 3.0-3.5μm, the oil volume is 2800-3000L / min, and the rolling speed is 80-100mpm (unit: meter per minute). The first pass of rolling with high roughness and large deformation makes the roller and the surface of the steel strip have a great friction force, which can eliminate the surface streaks by using the great friction force and m...

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Abstract

The invention relates to the technical field of stainless steel rolling, in particular to a production method for improving the surface quality of stainless steel. The rolling total deformation is 60-80%; in primary rolling, a working roller with roughness of 3.0-3.5 microns is used for rolling, the deformation is 23%, and the rolling speed is 80-100 mpm; in finished product rolling, a working roller with roughness of 0.2 microns is used for rolling, and the rolling speed is 120-150 mpm; in middle rolling, the deformation is 15-20%; in each rolling, a working roller with roughness of 0.3-0.9 microns is used for rolling, the deformation is 15-20%, and the rolling speed is 200-600 mpm; the middle pass consists of multiple passes; the roughness of the working roller for rolling is gradually reduced according to the passes; and the rolling speed is gradually increased according to the passes.

Description

technical field [0001] The invention relates to the technical field of stainless steel rolling. Background technique [0002] Rough surface striations are very common defects of stainless steel, and as the alloy composition increases, the surface striations also tend to aggravate. Rough surface striations affect the uniformity of the stainless steel surface, which restricts its application in high-end industries. Contents of the invention [0003] The technical problem to be solved by the invention is: how to spend less cost to improve the surface quality of stainless steel. [0004] The technical solution adopted in the present invention is: a production method for improving the surface quality of stainless steel, with a rolling total deformation of 60-80%; the first pass of rolling is rolled with work rolls with a roughness of 3.0-3.5 μm, and the deformation is 23%, the rolling speed is 80-100mpm; the finished pass is rolled with a work roll with a roughness of 0.2μm, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B27/02
CPCB21B1/22B21B27/02
Inventor 梁敏诤刘治宏
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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