In the products of blank metal discs, the proportion of blank metal discs accounts for more than 90% of the metal signs. For more than half a century, the production of blank metal discs with aluminum plates has been enduring for a long time. The main reasons It is because aluminum has decorative expressive power. Many surface decoration processes can be applied and played on aluminum materials, which is convenient for obtaining colorful and various combinations of decorative layers. On the other hand, it is due to a series of excellent properties of aluminum.
 


      The characteristics of blank metal discs: In addition to the above reasons, the physical and chemical properties of aluminum materials are consistent with the requirements related to the application in the blank metal discs. The brief introduction is as follows.
 
1. Light weight The density of aluminum is 2.702gNaN3, which is only 1/3 of that of copper and aluminum. The aluminum label will not increase the weight of the equipment and save costs.
2. Easy to process Aluminum has excellent ductility, easy to cut, and easy to stamp and form, which can meet the needs of special signs.
3. Good corrosion resistance A hard and dense oxide film can be formed on the surface of aluminum and its alloys.
4. Good weather resistance Aluminium oxide film layer, many substances will not produce corrosive effect on it, and it will also have excellent durability in the harsh environment of industrial areas and coastal areas.
5. No magnetism Aluminum is a non-magnetic body, and blank metal discs will not cause external interference to the equipment.
6. Abundant resources Aluminum reserves are considerable, and the annual output of aluminum products is second only to steel, which is second only to the world's total metal output.