A method for rapid detection of a-alumina on the surface of spray-coated 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 problem of long test time, complicated test process, and inability to reflect the distribution of alumina particles, etc. problems, to achieve the effect of simple test process, timely and effective control, and improved pass rate
Active Publication Date: 2018-06-29
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 rapidly detecting a-alumina on the surface of spray-coated and wear-resistant impregnated paper, which is carried out according to the following steps, sampling and dyeing: take a predetermined area of the spray-coated and impregnated paper sample to be tested and put it into a dyeing agent for dyeing; scan the image: After the dyed spray-coated wear-resistant impregnated paper is dried, scan it with a scanner to form an image; image processing: adjust the image contrast to make the a-alumina particles stand out, and then sharpen to make the edges of the alumina particles clear; image analysis: Obtain the diameter of each a-alumina particle and the distribution state of the alumina on the paper surface through image processing software; calculate the a-alumina covered by the surface of the impregnated paper per unit area according to the obtained diameter of each a-alumina particle quality. The invention can quickly obtain the quality of the alumina on the surface of the impregnated paper, and observe its distribution; it does not need to be carried out under high temperature conditions, the test process is simple and convenient, suitable for real-time detection on the production line, and has sufficient detection accuracy.
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