After the color aluminum plate has undergone a series of processing, of course, we cannot guarantee that every product is 100% free of problems. Of course, there will still be some loopholes. Before leaving the factory, the relevant operators will also conduct certain inspections. This process will inevitably cause some omissions, so when you choose a product, you must keep your eyes open. Then let's learn about its purchasing standards with the editor of Huaguan Board Industry.
1. The surface of the color aluminum plate is not allowed to have cracks, corrosion, cracked edges, and the surface of the plate whose thickness is greater than 0.6mm is not allowed to have diffusion spots;
2. The surface of the sheet is allowed to have defects such as slight pressure scratches, metal and non-metal indentations, insertion marks, scratches, roll marks, pine dendritic patterns and emulsion marks. However, the depth of various defects shall not exceed the allowable negative deviation of the thickness of the color aluminum plate, and the minimum thickness shall be guaranteed;
3. The total area of air bubbles should not exceed 100mm2 on the surface of the board per square meter;
4. Process-clad aluminum sheet, allowing exposed parts and surface bubbles with or without coating layer;
5. The defect of the colored aluminum plate is allowed to use 400# sandpaper for inspection grinding, and the grinding depth shall not exceed the allowable deviation of the thickness; the edges of the plate should be neatly cut and free of burrs.
In addition, there is a very important point. The interior of the mirror aluminum plate is not allowed to have center delamination and cracks. Consumers must check carefully when buying.
As a decorative material, the quality of color aluminum plate is very important, and when we purchase, we must carefully check whether there is any damage or quality problems.
