A weighing-based measuring method for foil strip cross-section profile

Abstract

The invention provides a method for measuring the profile of a foil strip cross section based on weighing, and belongs to the technical field of strip rolling. In this method, the foil sample is firstly cut at the stable section of the foil roll, and then a sampler is used to cut several foil strips of the same size along the width direction of the foil sample, and the position of the foil strip in the width direction of the foil sample is recorded at the same time. , the thickness of each foil strip is calculated by the thickness calculation formula, and finally the position of the foil strip is taken as the abscissa, and the thickness of the foil strip is plotted as the ordinate to obtain the thickness distribution in the width direction of the foil sample, that is, foil With cross-sectional profile. Because the foil is very thin and the thickness difference of the cross section is small, generally less than 10 μm, it is difficult to obtain accurate foil thickness by traditional measurement methods. The invention calculates the thickness of the foil by measuring the mass of the strips of the foil, avoids the thickness measurement error caused by the inaccurate calibration of foil thickness measuring equipment, and can obtain an accurate cross-sectional profile of the foil.

Description

technical field [0001] The invention relates to the technical field of strip rolling, in particular to a method for measuring the profile of a foil strip cross section based on weighing. Background technique [0002] The development trend of product lightweight and miniaturization makes the use of ultra-thin metal strips with high added value more and more widely, and the requirements for the shape accuracy of ultra-thin strip products are also getting higher and higher. The research object of the present invention is mainly the ultra-thin strip products of electronic aluminum foil used in the manufacture of various capacitors. In addition to the high requirements on the strip texture and thickness difference, the requirements on the accuracy of the plate shape are also getting higher and higher. The finished thickness of the electronic aluminum foil strip in a certain factory is about 0.1mm, and the foil rolling mill still has obvious "edge tight ribs" after using roll tilt...

AI Technical Summary

Problems solved by technology

Document 3 (an off-line measurement device for aluminum foil thickness, authorized patent, CN202814379U) designed an off-line measurement device for aluminum foil thickness. The main measurement equipment is a linear displacement sensor and a supporting ball. The movement of the groove can measure the thickness of each point of the width of the strip. Therefore, the length of the V-shaped groove on the long press block will limit the width of the aluminum foil strip that the equipment can measure. In addition, the use of displacement sensors has higher requirements on the operation process. Improper use will cause measurement errors in the accuracy of the thickness of the aluminum foil

The foil thickness and cross-section measurement methods mentioned in the above documents all need to rely on complex equipment, and the operation is more complicated. The accuracy of the equipment will also directly affect the measurement accuracy of the foil thickness and cross-section profile.

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