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How to judge the quality of aluminum plastic plate

1. Use the method of seeing. First, check whether the surface of the aluminum-plastic plate is flat and smooth without ripple, blister, shelter point and scratch.


2. Use measurement method. Measure whether the aluminum-plastic plate meets the international requirements. The inner wall plate is 3mm, the outer wall plate is 4mm or more, and the thickness of aluminum must be 0.5mm.


3. Use tools to break a corner of aluminum-plastic plate. It is not PE material or doping that is easy to break.


4. Burning method: the intermediate material of aluminum-plastic plate, the real PE is completely burned, and the doping makes impurities after false combustion.


5. Method of chemical reaction. In tank 6, drop butanone to identify the fluorocarbon coating of exterior wall panel and xylene to identify the coating of interior wall panel. Wipe off the reagent after 5 minutes to see whether the bottom is exposed.


7. Ask for the manufacturer's quality inspection report, quality assurance certificate and ISO-9002 international quality certification. The manufacturers with these certificates are regular manufacturers, which can ensure the product quality. The same price is better than the quality, and the same quality is better than the price. Check whether the front is broken.


You can also use a more accurate method:


1. Cut a piece of the whole aluminum-plastic plate, then lay it flat, surround it with a circle of sand, and then pour dilute sulfuric acid into the middle of the sand and soak it for one night, mainly depending on the corrosion resistance of the aluminum-plastic plate. Attention (in particular, do not use the samples provided by the seller, because the samples are generally waxed and specially treated. If you use them for outdoor decoration, you should do this experiment)


2. Cut another sample and cook it in boiling water for more than ten minutes, then take it out and freeze it in the refrigerator for one or two hours. If you have time, repeat it several times, and then uncover the aluminum skin on both sides with your hands or tools. If it is easy to uncover, it indicates that the quality is poor. If it is not easy to uncover, it indicates that the quality is excellent, which mainly depends on the impact of temperature cold and hot on the aluminum plastic plate.


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