Drawing processing is to be done after stamping. Drawing can be made into several kinds, such as straight, screwed, corrugated and screwed, according to decoration requirements.
Straight wire drawing refers to the processing of linear texture on the surface of aluminium sheet by means of mechanical friction. The utility model has the functions of brushing scratches on the surface of the aluminium plate and decorating the surface of the aluminium plate.
There are two kinds of straight wire drawing, one is continuous thread drawing and the other is intermittent thread drawing. The continuous filament pattern can be obtained by continuous horizontal straight line friction of the exterior of the aluminium sheet with a cleaning cloth or stainless steel brush.
By changing the steel wire diameter of stainless steel brush, different thickness texture can be obtained. Intermittent filaments are usually processed on a brusher or a scratch machine. Principle of manufacture: Select two groups of co-rotating differential wheels, the upper group is a fast rotating grinding roller, the lower group is a slow rolling rubber roller. Aluminum or aluminium alloy plate passes through the two groups of rollers and is brushed out fine intermittent straight lines.
Chaotic wire drawing is a kind of irregular, non-significant texture Matt filament which is obtained by moving the aluminum plate around and around under the brush of high-speed copper wire. This kind of processing has a high requirement for the appearance of aluminium or aluminium alloy sheets.
Thread is a small motor equipped with circular felt on the axle, which is fixed on the desktop, and the edge of the table into about 60 degrees of view. In addition, a trailer equipped with fixed aluminium plate for tea pressing is made, and a polyester film with straight edges is pasted on the trailer to restrict thread competitiveness. Using the rotation of felt and the straight line movement of the trailer, the thread texture with the same width is scratched out on the surface of the aluminum sheet.
Sandblasting treatment is to obtain the appearance of film finishing or fine reflective surface, in order to meet the special design requirements such as luster and softness. Even and moderate sand blasting treatment can basically overcome the common shortcomings of the appearance of aluminium materials.
For exterior parts, whether they are drawn or sandblasted, they usually need to be treated by surface oxidation. As for the choice of processing technology, it should be a question related to the shape. The appearance texture of the two processes is still different.
In addition, there is a process close to sand blasting, but it is carried out by a chemical corrosion method, commonly known as chemical sand treatment or chemical sand surface corrosion, especially for the surface treatment of aluminium materials, the uniformity of the sand surface is much better than that of sand blasting 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.
The above information is published by our aluminium plate manufacturer. Our website is http://www.jndclyxgs.com.