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Aluminium and aluminum alloy strip foil surface clearness detection method

A technology for cleaning the surface of aluminum alloy strips and strips, which is applied in the field of aluminum and aluminum alloys, can solve the problems that there is no quantitative determination of the surface cleanliness of aluminum and aluminum alloy strips and foils, and achieve low detection costs, simple tools, and high measurement results accurate effect

Active Publication Date: 2011-06-15
CHINALCO RUIMIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, all relevant standards can only be qualitatively judged by visual inspection, and there is no effective and scientific method for quantitatively judging the surface cleanliness of aluminum and aluminum alloy strips and foils.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] test tool

[0015] 1. White tissue paper (white facial tissue)

[0016] 2. Applicator: a cylindrical object with a radius of 38.1mm and a weight of 283.5g

[0017] 3. 50.8mm diameter, 25.4mm height plastic tube

[0018] 4. Plexiglas disc

[0019] 5. Limiting frame (limiting frame cavity size: 137.2mm*137.2mm)

[0020] 6. Drop bottle

[0021] 7. Vegetable oil

[0022] experiment procedure

[0023] 1) The sample taken can represent the actual situation of the surface cleanliness of aluminum and aluminum alloy strip foil, and 20cm*the entire width length can be cut along the width direction of the strip, so that the surface of each sample is not less than 15*15cm. Samples must not be touched directly by hand.

[0024] 2) Drop three drops of vegetable oil on the surface of the aluminum foil to be tested, no more than three drops. Use a plexiglass disc to gently press the oil droplets to spread the oil evenly on the surface of the aluminum foil. Before using the glas...

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PUM

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Abstract

The invention provides a method for detecting the surface cleanliness of aluminum, aluminum alloy plates, strips and foils, wherein vegetable oil is uniformly painted on the surface of an aluminum plate; white tissue paper is pressed by a cylinder with certain weight and contact area, the aluminum plate is wiped within specified area, and aluminum powder impurities on the aluminum plate or residual oil are absorbed by the white paper; and the surface cleanliness of the aluminum plate is indirectly judged by comparison of the color of the white paper and a standard color card. The method is simple and easy, has low cost and accurate determination result, and is suitable to be used for judging the surface cleanliness in industrialized production.

Description

technical field [0001] The invention belongs to the technical field of aluminum and aluminum alloys, and more specifically relates to a detection method for the surface cleanliness of aluminum and aluminum alloy plates, strips and foils. Background technique [0002] During the production and transportation of aluminum and aluminum alloy strip foil, various reasons will cause the surface of aluminum and aluminum alloy strip foil to contain certain aluminum powder or dirt (mainly aluminum powder) and residual oil, etc., causing aluminum and aluminum The surface of alloy plate, strip and foil is polluted; the degree of pollution has a certain impact on various subsequent processing, so various aluminum processed products, especially plates, strips and foils, require clean surfaces. At present, all relevant standards can only be qualitatively judged by visual inspection, and there is no effective and scientific method for quantitatively judging the surface cleanliness of alumin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/94
Inventor 邱龙涛林梅钦朱志斌潘飚陈小明兰政
Owner CHINALCO RUIMIN