The drawing process of aluminum plate needs to be done after stamping. Its drawing process can be made into a variety of lines according to the decoration needs, such as: straight lines, random lines, threads, corrugations and spiral lines. Let's introduce the inoculation drawing process separately:
1. Straight wire drawing
Straight-grain drawing refers to the machining of straight lines on the surface of the aluminum plate by mechanical friction. It has the dual function of removing scratches on the surface of the aluminum plate and decorating the surface of the aluminum plate.
Straight wire drawing can be divided into continuous wire and intermittent wire. Continuous thread patterns can be obtained by scouring pads or stainless steel brushes through continuous horizontal straight-line rubbing on the surface of the aluminum plate (such as manual grinding under the existing device or using a planer to clamp the wire brush on the aluminum plate). By changing the wire diameter of the stainless steel brush, textures of different thicknesses can be obtained. Intermittent silk patterns are generally processed on brushing machines or rubbing machines.
Production principle: Two sets of differential wheels rotating in the same direction are used. The upper set is a fast-rotating grinding roller, and the lower set is a slow-rotating rubber roller. The aluminum or aluminum alloy plate passes through the two sets of rollers and is brushed out. Delicate intermittent straight lines.
2. Random pattern drawing
Chaotic wire drawing is a kind of irregular and non-obvious matte silk pattern obtained by moving and rubbing the aluminum plate back and forth under the high-speed copper wire brush. This kind of processing has higher requirements on the surface of aluminum or aluminum alloy plates.
3. Thread drawing
Thread drawing is to use a small motor with a round felt on the shaft, fix it on the table, at an angle of about 60 degrees with the edge of the table, and make a carriage equipped with a fixed aluminum plate for pressing tea. A polyester film with straight edges is attached to limit thread competition. Using the rotation of the felt and the linear movement of the carriage, a thread pattern with the same width is rubbed on the surface of the aluminum plate.
Sandblasting is to obtain the surface of the light decoration or fine reflective surface to meet the special design needs such as soft gloss. Even and moderate sandblasting can basically overcome the common defects of aluminum surface.
4. Corrugated wire drawing
Corrugated wire drawing is generally made on a brushing machine or a rubbing machine. Use the axial movement of the upper group of grinding rollers to brush on the surface of the aluminum or aluminum alloy plate to obtain wave patterns.
5. Swirl drawing
Swirl is also called optical rotation. It is a kind of silk pattern obtained by using cylindrical felt or grind nylon wheel to install on a drilling machine, blending polishing oil with kerosene, and rotating and polishing the surface of aluminum or aluminum alloy plate. It is mostly used for decorative processing of round signs and small decorative dials.
Which wire drawing process to choose is a question related to modeling, and the surface textures obtained by these processes are still different. Dongguan Zhigao Industrial Co., Ltd. specializes in the production of aluminum alloy radiators for automotive power amplifiers, and has the production technology of various styles of automotive power amplifier aluminum radiators.