Electroplating process: drawing process of aluminum plate

【China Aluminum Network】 wire drawing processing to do after the stamping, drawing can be made according to the needs of the decoration, made straight lines, chaos lines, threads, corrugated swirl lines and so on.

Straight-line drawing means that the surface of the aluminum plate is machined with a straight line by a mechanical friction method. It has the dual role of brushing off the aluminum surface scratches decorative aluminum plate surface. There are two kinds of continuous silk thread interrupted thread drawing. The continuous silk grain can be obtained by using a scouring pad or a stainless steel brush to perform continuous horizontal linear friction on the surface of the aluminum plate (if there is a manual grinding under the condition of the present device, or using a planer to grip the brush on the aluminum plate of the wire brush). Changing the diameter of stainless steel brush wire can obtain different thickness lines. Intermittent silk thread is usually processed by brushing machine or rubbing machine. The principle of making: using two sets of co-rotating differential wheels, the upper group is a rapid rotation grinding roller, the lower group is a slow rotation roller, aluminum or aluminum alloy plate passes through the two sets of rollers, and is brushed out fine and intermittent straight Pattern.

The chaotic pattern drawing under the high-speed operation of the copper wire brush makes the aluminum plate move forward and backward and left and right to obtain a kind of irregular, no obvious grainy matt silk pattern. This type of processing requires a high surface area for aluminum or aluminum alloy plates.

Corrugated general brush or scratch machine on the preparation. Using the axial movement of the upper group of grinding rollers, the surface of the aluminum or aluminum alloy plate is brushed to obtain a wavy pattern.

Spinning, also known as rotating light, using cylindrical felt or grinding wheel nylon grinding machine, using kerosene to adjust the polishing paste, the surface of the aluminum or aluminum alloy plate is rotated to obtain a silk pattern. It is mostly used for ornamental processing of small decorative dials with circular signs.

The thread is equipped with a small motor with a round felt on a shaft and is fixed on the table top, forming an angle of about 60 degrees with the edge of the table, and a tea plate with a fixed aluminum plate is attached to the thread. The film is used to limit the thread race. With the rotation of the felt and the linear movement of the carriage, the surface of the aluminum plate is screwed to a thread pattern with the same width.

Sandblasting in order to obtain film light decoration or subtle reflective surface to meet the special design needs such as glossy soft. Uniform and moderate blasting can basically overcome common defects on the surface of aluminum.

For appearance parts, no matter if drawing or sandblasting, surface oxidation treatment is usually required. As for which process to choose, one should consider one issue related to the styling, and there are differences between the two processes for obtaining the texture of the surface.

In addition, there is a process of sandblasting close, but using a chemical corrosion method, commonly known as chemical blasting or chemical surface corrosion, especially for aluminum surface treatment, the sand surface uniformity is much better than sandblasting. Chemical sand surface corrosion acidic corrosion alkaline corrosion. Sand grains with different surface colors can be obtained through different corrosive solvent sand agents.

Insert Nut