Method for fast detecting alpha-alumina on surface of spraying wear-resistant impregnated paper
A technology of wear-resistant impregnated paper and alumina, which is applied in the preparation of test samples, measuring devices, and material analysis through optical means. It can solve the complicated test process, long test time, and inability to reflect the distribution of alumina particles, etc. problem, to achieve timely and effective control, improve the pass rate, and simplify the test process
Active Publication Date: 2015-12-09
CHUZHOU UNIV
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The disadvantages of this method are: firstly, it needs to be detected under high temperature conditions, and the testing process is complicated; secondly, the test time is long, which is not suitable for real-time detection on the production line; finally, the detected data only indicates that the impregnated paper per unit area contains alumina The quality of the particles cannot reflect the distribution of alumina particles on the paper, and whether the distribution is uniform is directly related to the wear resistance of the floor
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[0028] In this embodiment, the method for rapidly detecting a-alumina on the surface of spray-coated wear-resistant impregnated paper is characterized in that: it is carried out in the following steps,
[0029] The first step, sampling and dyeing: in the production process of the production line of wear-resistant impregnated paper 1, at regular intervals, a cutting detection area 3 with a size of 10×10cm should be cut as the impregnated paper sample, refer to Figure 4 ;Take the impregnated paper sample to be tested and put it into the dyeing agent for 30 seconds, take it out, and then put it in a drying oven to dry for 30 seconds;
[0030] The second step, scanning the image: After the dyed spray-coated wear-resistant impregnated paper is dried, scan it with a scanner with a scanning resolution of 300dpi or more to form an image;
[0031] The third step, image processing: using Photoshop image processing software, first adjust the image contrast to make the a-alumina particle...
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Abstract
The invention discloses a method for fast detecting alpha-alumina on the surface of spraying wear-resistant impregnated paper. The method includes the following steps that sampling and dyeing are performed, wherein a to-be-detected spraying wear-resistant impregnated paper sample of preset area is placed in a dyeing agent and dyed; image scanning is performed, wherein after the dyed spraying wear-resistant impregnated paper is dried, an image is formed through scanning of a scanner; image processing is performed, wherein image contrast is adjusted so that alpha-alumina particles can be prominent, and re-sharpening enables the edges of the alpha-alumina particles to be clear; image analysis is performed, wherein the diameter of each alpha-alumina particle and the distribution state of the alumina on the paper surface are obtained through processing of image processing software; according to the obtained diameter of each alpha-alumina particle, the mass of the alpha-alumina which the surface of unit area of the impregnated paper is covered with is calculated. By means of the method, the mass of the alumina on the surface of the impregnated paper can be fast obtained, and the distribution condition of the alumina can also be observed; operation does not need to be performed under the high-temperature condition, the testing process is simple and fast, the method is suitable for real-time detection on a production line, and detection precision is sufficient.
Description
technical field [0001] The invention relates to the technical field of material detection, in particular to a method for detecting the quantity and distribution of a-alumina on the surface of spray-coated wear-resistant impregnated paper. Background technique [0002] One of the most important indicators of composite laminate flooring is the wear resistance of the floor surface. This wear resistance is due to the fact that the surface of the composite laminate floor is covered with a layer of wear-resistant material - a-alumina. The structure of traditional composite laminate flooring is that the top layer is covered with wear-resistant paper containing a-alumina in the paper, the second layer is decorative paper with wood grain patterns, the middle is a piece of high-density fiberboard, and the bottom layer is balanced paper. Now, in order to reduce the cost and improve the clarity of the pattern on the floor surface, the wear-resistant paper is omitted, but the a-alumina p...
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IPC IPC(8): G01N21/84G01N1/30
Inventor 丁中建丁中强
Owner CHUZHOU UNIV