Wire drawing process is a new type of aluminum plate surface treatment process, which mainly takes aluminum and aluminum plate as the base material, and uses wire drawing wheel, wire drawing sand belt or nylon ring belt to pull out the required texture on the surface. The wire drawing process is formed by pressing, roller coating and other chemical treatments. It has the characteristics of bright, uniform surface color, strong sense of fashion and strong visual impact. Wire drawing is to be done after stamping. Wire drawing can be made into straight lines, random lines, threads, ripples and rotary lines according to decorative needs.
Straight line wire drawing refers to machining straight lines on the surface of aluminum plate by mechanical friction. The utility model has the dual functions of removing scratches on the surface of aluminum plate and decorating the surface of aluminum plate. There are two kinds of straight line drawing: continuous line drawing and intermittent line drawing. Continuous silk lines can be obtained by continuous horizontal and linear friction on the surface of aluminum plate with cleaning cloth or stainless steel brush (such as manual technical grinding under the condition of existing device or grinding on aluminum plate with wire brush clamped by planer). By changing the steel wire diameter of the stainless steel brush, lines of different thickness can be obtained. Intermittent silk lines are generally processed on a polishing machine or a texturing machine. Preparation principle: two groups of differential wheels rotating in the same direction are adopted. The upper group is a fast rotating grinding roller and the lower group is a slow rotating rubber roller. Aluminum or aluminum alloy plate passes through the two groups of rollers and is brushed with fine intermittent straight lines.
Random wire drawing is a kind of irregular matte wire pattern without obvious lines obtained by moving and rubbing the aluminum plate back and forth, left and right under the high-speed copper wire brush. This processing has high requirements for the surface of aluminum or aluminum alloy plate.
Corrugations are generally made on a brushing machine or a texturing machine. Using the axial movement of the upper group of grinding rollers, grind and brush on the surface of aluminum or aluminum alloy plate to obtain wavy lines.
Rotary pattern, also known as optical rotation, is a kind of silk pattern obtained by rotating and polishing the surface of aluminum or aluminum alloy plate with cylindrical felt or stone grinding nylon wheel installed on the drilling machine and kerosene mixed with polishing paste. It is mostly used for decorative processing of circular signs and small decorative dials.
The thread is fixed on the table by a small motor equipped with circular felt on the shaft at an angle of about 60 degrees with the edge of the table. In addition, a carriage equipped with fixed aluminum plate for pressing tea is made, and a polyester film with straight edge is pasted on the carriage to limit the thread competition. The rotation of the felt and the linear movement of the carriage are used to spin and wipe the thread pattern with the same width on the surface of the aluminum plate.
Sand blasting is to obtain the surface of film light decoration or fine reflection surface, so as to meet the special design needs such as soft luster. Uniform and moderate sand blasting can basically overcome the common defects on the aluminum surface.