Foamed aluminum plate quality identifying and grading method based on machine vision
A grading method and machine vision technology, applied in the direction of material analysis, instruments, measuring devices, etc. by optical means, can solve the problems of lack of online detection, difficult control of the quality of foamed aluminum sheets, and high cost
Inactive Publication Date: 2021-06-25
ANHUI NEOFOUND TECH
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Problems solved by technology
However, due to the different thickness specifications of the target foamed aluminum sheets, the cost of using a mold for production is relatively high, and the yield rate of thinner foamed aluminum sheets is not high during production; for this reason, those skilled in the art usually The method used is to directly produce thick aluminum foam with a certain thickness specification, and obtain foam aluminum sheets of different thicknesses by cutting. However, the prior art lacks equipment for online testing of the quality of such foam aluminum sheets, resulting in foam The quality of aluminum sheet is difficult to control
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[0019] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further clarified below in conjunction with specific drawings.
[0020] It should be noted that, in the present invention, when an element is referred to as being "fixed" to another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiments.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The ...
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The invention relates to the technical field of foamed aluminum plate production, in particular to a foamed aluminum plate quality identifying and grading method based on machine vision, which is used for identifying and grading foamed aluminum plates on a conveying line on line, and comprises the following steps: images of to-be-detected foamed aluminum plates on the conveying line are acquired by using an image acquisition device; the collected images of the to-be-detected foamed aluminum plate are spliced through an image splicing algorithm, the spliced images are compared with the foamed aluminum plate images stored in the computer, and the quality grade of the to-be-detected foamed aluminum plate is determined. According to the online detection method provided by the invention, the pore diameter of the foam hole of the section of the foamed aluminum plate and the dispersion degree of the pore diameter can be quickly known, so that the quality of the foamed aluminum plate is judged, and the produced foamed aluminum plate is ensured to meet the quality requirement.
Description
technical field [0001] The invention relates to the technical field of production of foamed aluminum sheets, in particular to a method for identifying and grading the quality of foamed aluminum sheets based on machine vision. Background technique [0002] Foamed aluminum is a new type of metal material with a large number of pores. The general porosity is 40% to 98%. It has light weight, high specific strength, damping and shock absorption, high impact energy absorption and excellent sound absorption, heat insulation and heat dissipation. , electromagnetic shielding and other physical properties, it has been widely used in aviation, aerospace, automobile manufacturing, rail transit and other fields. [0003] In the existing aluminum foam production lines, most of them use the addition of tackifier and foaming agent into the aluminum melt, and then react to obtain aluminum foam. However, due to the different thickness specifications of the target foamed aluminum sheets, the ...
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Login to View More IPC IPC(8): G01N21/01G01N21/892
CPCG01N21/01G01N21/892
Inventor 谢峰甘海潮梁林张进
Owner ANHUI NEOFOUND TECH