Knowledge of straight line drawing
Straight line drawing refers to the process of machining a straight line texture on the surface of an aluminum plate using mechanical friction. It has a two-layer effect of brushing off scratches on the surface of aluminum plates and decorating the surface of aluminum plates. There are two types of straight line drawing: continuous line drawing and intermittent line drawing. Continuous silk patterns can be obtained by using a scouring pad or stainless steel brush to rub the surface of the aluminum plate in a continuous horizontal straight line (such as manually grinding with equipment or grinding the steel wire brush on the aluminum plate with a planer). Changing the diameter of the steel wire of the stainless steel brush can obtain textures of different thicknesses. Intermittent silk patterns are generally processed on brushing or polishing machines. Production principle: Two sets of differential wheels rotating in the same direction are selected, with the upper set consisting of fast rotating grinding rollers and the lower set consisting of slow rotating rubber rollers. Aluminum or aluminum alloy plates pass through the two sets of rollers and are brushed with fine intermittent straight lines.

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