A method for preparing high-precision annular grinding mirror steel strip

Abstract

The invention discloses a method of preparing a high-precision annular grinding mirror surface steel belt. The method comprises the following steps of: selecting a steel belt material, to be specific, selecting the steel belt with the tensile strength of 900-1600N / mm<2> and the hardness of HV 300-450 as a master belt to be welded; performing seamless welding; leveling weld joints; carrying out preliminary grinding on the weld joints; and carrying out mirror surface grinding process, to be specific, grinding an annular steel belt rough blank subjected to preliminary grinding by using two rows of automatic grinders with multiple grinding heads till the surface roughness is below Ra 0.02 micrometers. The method has the beneficial effects that the strict selection of the steel belt material and the adoption of the seamless welding technology, the leveling technology, the preliminary grinding technology, the mirror surface grinding technology and other management and control processes cause the steel belt in a slobbering machine to have relatively high mechanical strength, extremely small errors at annular welding parts, relatively small surface roughness and relatively long service life and finally cause thin film products obtained by adopting a slobbering process to be relatively thin and have consistent color and luster and uniform thickness, and further, the quality defects of the original steel belt are overcome.

Description

technical field [0001] The invention relates to the technical field of steel strips for salivation equipment, in particular to a method for preparing a high-precision annular grinding mirror steel strip. Background technique [0002] In polyimide film (PI), PVA film, pregnancy test film, memory film and other processes involving salivation, the steel strip as the core component of the equipment is directly related to the thickness, uniformity, peelability, color difference and Transparency, etc., only a high-quality steel strip surface can produce a high-performance film. [0003] However, the current industry research shows that the steel belts used in equipment such as belt casting machines and extrusion molding machines are of various types, and there are no clear industry standards, resulting in uneven quality of the products produced; : If the surface roughness of the steel strip is too high, it will not be easy to peel off or the color of the product will be poor. The...

AI Technical Summary

Problems solved by technology

This method can accurately control the perimeter of the endless steel belt, but cannot produce a steel belt with a width of more than 1000MM and a circumference of more than 20 meters, and does not solve the problem of the surface roughness of the steel belt (high-precision mirror surface)

Therefore, the endless steel belt disclosed in this invention patent application is only applicable to ordinary, small-scale conveying and transmission industries

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