Production and processing technology of brushed aluminum sheet

Drawing processing is to be done after stamping. Brushed aluminum sheet can be made into several kinds, such as straight, screwed, corrugated and screwed, according to decorative needs.

Straight wire drawing refers to the processing of straight lines on the surface of aluminium sheet by mechanical friction. It has the dual function of removing scratches on the surface of aluminium plate and decorating the surface of polished aluminium sheet plate. There are two kinds of straight brushed: continuous thread drawing and intermittent thread drawing. Continuous filament pattern can be obtained by continuous horizontal linear abrasion on the surface of aluminium sheet with cleaning cloth or stainless steel brush (such as manual grinding under the condition of existing devices or grinding on aluminium sheet with wire brush clamped by planer). By changing the steel wire diameter of stainless steel brush, different thickness lines can be obtained. Intermittent filaments are usually processed on a brusher or a scratch machine. Principle of manufacture: Two groups of co-rotating differential wheels are used. The upper group is a fast rotating grinding roller, the lower group is a slow rotating rubber roller. Aluminum or aluminium alloy plate passes through the two groups of rollers and is brushed out fine intermittent straight lines.

HAOMEI brush aluminum sheet wire drawing is a kind of irregular and non-obvious sub-light filament which is obtained by moving the aluminum plate around and around under the brush of high-speed copper wire. This kind of processing requires higher surface requirements for aluminium or aluminium alloy sheets.
The ripple is usually made on a brusher or a rubbing machine. Using the axial motion of the upper group of grinding rollers, the wavy pattern is obtained by brushing on the surface of aluminium or aluminium alloy plates.
Rotary pattern, also known as optical rotation, it is a kind of filament pattern obtained by rotating polishing aluminium or aluminium alloy plate cut to size surface with cylindrical felt or abrasive nylon wheel mounted on drilling machine and kerosene mixed with polishing paste. It is mostly used for decorative processing of circular signs and small decorative plates.
Thread is a small motor with circular felt on the axle, which is fixed on the desktop at an angle of about 60 degrees with the edge of the table. In addition, a drag board with fixed hot rolled aluminium plate for tea pressing is made, and a polyester film with straight edge is pasted on the drag board to restrict thread competitiveness. Using the rotation of felt and the straight line movement of towing plate, the thread lines with the same width are scratched on the surface of aluminium plate.
Sandblasting is used to obtain the surface of film decoration or fine reflective surface to meet the special design requirements such as soft gloss. Even and moderate sand blasting treatment can basically overcome the common defects on the surface of aluminium materials.
For exterior parts, whether they are drawn or sandblasted, surface oxidation treatment is usually required. As for the choice of processing technology, it should be a question related to the shape, and the surface texture obtained by the two processes is still different.
Another process is similar to sandblasting, but it is carried out by a chemical corrosion method, commonly known as chemical sand treatment or chemical sand surface corrosion, especially for sublimation metal sheet/sheets surface treatment, the uniformity of the sand surface is much better than that of sandblasting treatment. Chemical sand surface corrosion includes acid corrosion and alkaline corrosion. Different surface colours and grain sizes can be obtained by different corrosion solvents and surfactants.