How does aluminium plate manufacturer distinguish wire drawing aluminium plate from alumina plate? For the first time contact with aluminium plate friends, how to distinguish the type of aluminium plate is a big challenge. As an aluminium plate manufacturer, it is our duty to help you solve the problems. The most common drawing aluminium plate and alumina plate are introduced in detail.
Wire drawing aluminium sheet: The manufacturing process of scraping aluminium sheet out of line repeatedly with sandpaper. Its main process is divided into three parts: deesterification, sand mill and water washing. In the process of drawing aluminium sheet, the special skin film technology after anodic treatment can make the surface of aluminium sheet produce a kind of skin film containing this metal component, which can clearly show each fine filament mark, and thus make the metal glossy and lustrous.
There are many series of wire drawing aluminium sheets. Different series have their own unique properties of aluminium sheets, which are embodied in their drawing effect, corrosion resistance and contamination resistance. It is of course necessary to add some oxidation in the process of wire drawing, but this is not the same as that of aluminium sheet, which is not scientific.
Alumina plate: Aluminum plate is formed by electrolysis of aluminum plate in corresponding electrolyte (such as sulphuric acid, chromic acid, oxalic acid, etc.) as an anode under specific conditions and applied current. A thin layer of alumina is formed on the surface of the anode when the aluminium plate is oxidized. Its thickness is 5-20 microns, and the hard anodic oxide film can reach 60-200 microns.
There are also many series of alumina sheets, but they all have a common feature that the surface is aluminium sheets with oxide film, and its surface is quite different from that of aluminium sheets with drawing texture.