1, color discrimination. The color can be seen from the appearance. A good aluminum square has pure color, soft vision, no spots and scratches on the surface, and smooth and delicate feel.
2. materials.
There are mainly the following kinds of aluminum in the market: according to the origin of aluminum, it is divided into ordinary aluminum, wide aluminum and southwest aluminum; According to the international label of aluminum, it is divided into 1 100, 3003, 5005 and other labels; According to the alloy strength of aluminum, it can be divided into H24, H 18 and so on. According to the toughness of aluminum, it can be divided into ordinary aluminum, aluminum-magnesium alloy and aluminum-manganese alloy. Most of the ceiling materials sold in the market are ordinary aluminum materials, which are characterized by low strength, average flatness, strong toughness and no deformation. Without a good base material, the service life of aluminum will be greatly affected.
3. Surface treatment.
The surface treatment of aluminum square mainly includes spraying, baking, roller coating and film covering. Among them, spray paint has a short service life, which is easy to produce color difference, and roller paint has a medium service life. The coated board is divided into ordinary film and imported film, and the service life of imported film can basically reach 20 years without discoloration.
4. process.
The so-called process is that the plate has an attached surface layer, which is ignored by consumers. If the process is not good, it will have a great impact on the service life of the product. The processing technology of aluminum manufacturers in the market is very different. Many small factories basically adopt workshop style, which reduces their service life. It is suggested that you must see this piece clearly when choosing the aluminum square hole type.
5. The process of identifying the square hole type of aluminum. There are many kinds of processing technologies for aluminum square holes, and the aluminum square holes that look exactly the same in appearance are very different in technology. The polymer looks the same as the finished aluminum square processed by film covering, but the film thickness is thin. Thin is the polymer process, thick is the film covering process.