ã€China Aluminum Network】 wire drawing processing is done after stamping, drawing can be made according to the needs of the decoration, straight lines, chaos lines, threads, corrugated and swirl lines and so on.
Straight-line drawing means that straight lines are machined on the surface of the aluminum plate by mechanical rubbing. It has the dual role of brushing off the aluminum surface scratches and decorative aluminum surface. There are two kinds of continuous wire drawing and intermittent wire drawing. Continuous wire can be used scouring pad or stainless steel brush through the continuous horizontal linear friction on the surface of the aluminum plate (such as in the presence of the device under the conditions of manual grinding or grasping with a planer wire brush in the aluminum plate to obtain. Change the diameter of stainless steel wire brush, Different thread thickness can be obtained, interrupted thread is generally processed on the brush or scratch machine, the principle of preparation: using two sets of differential rotating wheel with the same direction, the upper group is a rapidly rotating grinding roller, the lower group For the slow rotation of the roller, the aluminum or aluminum alloy plate passes through the two sets of rollers and is brushed with fine intermittent lines.
Random pattern drawing is a kind of irregular matt silk pattern with no visible lines obtained by moving the aluminum plate forward and backward and left and right under the high-speed copper wire brush. This kind of processing requires high surface quality for aluminum or aluminum alloy plates.
Ripples are usually made on a brush or a scribing machine. Using the axial movement of the upper set of grinding rollers, the surface of the aluminum or aluminum alloy plate is brushed to obtain a wave pattern.
Spinning, also known as rotation, is the use of cylindrical felt or grinding stone nylon wheel mounted on the drill, with kerosene and polishing paste polishing, aluminum or aluminum alloy plate surface rotation grinding and grinding obtained by a silk pattern. It is mostly used for decorative processing of round signs and small decorative dials.
The thread is a small motor equipped with a round felt on the shaft, which is fixed on the table, and is at an angle of about 60 degrees with the edge of the table. It is also made of a dragging plate with a fixed aluminum plate for pressing the tea. A polyester film with straight edges is used to limit the thread race. With the rotation of the felt and the linear movement of the carriage, a thread pattern with the same width is spirally wound on the surface of the aluminum plate.
Sandblasting is to obtain the surface of the film light decoration or fine reflective surface, in order to meet the special design needs such as soft gloss. Moderate sandblasting can basically overcome common defects on the aluminum surface.
For appearance parts, whether drawing or sandblasting, it is usually necessary to do surface oxidation. As for which process to choose, it should be a matter to be considered in relation to the styling. The surface textures obtained by the two processes are still different.
In addition, there is a process similar to sandblasting, but using a chemical corrosion method, commonly known as chemical battering or chemical sand surface corrosion, especially for aluminum surface treatment, the uniformity of the sand surface is far better than the spray Sand treatment. Chemical sand surface corrosion acidic and alkaline corrosion. Different surface colors and grit thickness can be obtained with different etching solvents and sand agents.