Aluminium Composite Panel Manufacturers & Suppliers in China since 2002 - Henglicai ACP
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Aluminium Composite Panel Manufacturers & Suppliers in China since 2002 - Henglicai ACP
Hlcaluminium -
Building curtain wall aluminum plastic board refers to a composite board for building curtain wall materials, composite plates with plastic as the core layer, two sides as aluminum plates, and decorative and protective coating or film on the surface of the product as the product as the product as the product. Decorative surface. Nowadays, the quality requirements of new materials in the field of construction and decoration are becoming more and more strict, and manufacturers have also continuously regulated their quality control methods and means on this requirement. GB/T17748-2008 The national standards for the "Aluminum Plastic Composite Plate of the Building curtain Wall" make specific regulations on the quality control indicators and detection methods of aluminum-plastic composite boards.
1. Color difference detection
According to the standard requirements, the color difference detection uses the visual inspection method, and it is stipulated that it should be carried out under the natural light conditions of non -sunlight. However, because the lighting conditions are not regulated, the judging results are often different due to environmental differences.
Second, aluminum thickness, composite adhesive film thickness and deviation detection
1. The thickness test of aluminum material
According to the standard GB/T 17748-2008, remove the aluminum material from the sample as the test piece, and measure the thickness of the aluminum material with a minimum score value of 0.001mm (1 μm). A test point of more than 5 angles and the center part, with the minimum average and arithmetic average of all measurement values as the test results.
2. Compound adhesion film (polymer film) thickness test
Compound adhesion thin-film thickness test refer to the measurement of GB/T 6672-2001 plastic film and thin tablet thickness (mechanical measurement method) standards. Measurement of the thickness and thickness deviation of thin film (polymer film).
Third, coating glitter bias test
According to the GB 9754 standard, the test work is required to use the 20 -degree luster. Test data at as many positions as possible during testing, and use the difference between the maximum value and minimum value in the test data as the bias of the gloss of the gloss of the coating of the aluminum -plastic composite plate for the building curtain wall.
Fourth, the peeling strength detection building curtain wall aluminum plastic panel peeling strength is very important. The composite strength between aluminum plates and plastic can meet the standards to maintain durable and stable performance in subsequent use.
The test is as follows:
Peel off the aluminum that is to be peeled off at both ends of the sample. One of them is cut off one end to intercept the core and aluminum materials behind, clamp the left aluminum on the top of the plywood and test with the test with the test with the test. The top of the machine is connected, and the aluminum peeled on the other end is sandwiched on the drum. The length axis of the test piece is vertical with the central axis of the drum, the test machine carrier is clear, and then connects the lower splint to the lower pinch of the test machine (please see the attachment); , Until the test piece is peeled at least 150mm, and the peeling force and the itinerary curve are recorded. Although in the standard, although the sample preparation has been provided in detail, it is inevitable that during the processing process of the sample, it will inevitably affect the front and back of the test parts. In the effect of the test results, the test machine should have the function of "hoe to the end".
In addition, the XLW intelligent electronic tensile test machine can also take into account the 180 ° departure intensity of 180 °, the peeling strength of the roller, the stretching strength and the elongation of the erection of the aluminum -plastic composite composite plate production of aluminum -plastic composite plates Test.
Fifth, aluminum -plastic composite plate production composite adhesive film (polymer film) tear strength detection
GB/T17748-2008 "Building curtain wall for aluminum-plastic composite board" national standards refer to the tear strength test of high molecular film as right-angle tear strength, because the method of its execution is GB/T11999 "Plastic and thin tear resistance performance The experimental method of Elmendor ", so it is called Elimodorf method to tear the intensity. The test can be tested by the "Sly-S1 tear meter" during testing.
The above is a brief introduction to the detection method and detection instruments for the building curtain wall. Through the summary of the relevant detection methods of GB/T17748-2008, the content of various contents is mainly referred to the GB/T 2790-1995 adhesive 180 ° peeling strength test method. (Determination of rigid materials), GB/T 6672-2001 Plastic film and thin tablet thickness measurement (mechanical measurement method), GB/T 1199-1989 plastic and thin torn resistance test method (Elmendorf method ), GB/T 13022-1991 Plastic film stretching performance test method and other related standards.
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