Introduction to the surface drawing process of grade aluminum window profile

The grade aluminum window profile wire drawing can eliminate the abrasion, scratches, machining knife marks, etc. of the aluminum alloy profile. The degree of elimination is related to the depth of wire drawing. Generally speaking, the greater the depth of wire drawing, the stronger the ability to eliminate physical defects on the aluminum alloy surface. However, for the demanding wire drawing treatment, it is necessary to use polishing or polishing to eliminate the surface defects of the workpiece in advance before drawing, especially for the thin wire. In addition to the above-mentioned elimination of surface defects of aluminum alloy workpieces, wire drawing can improve the texture of metal materials and provide it with a strong decorative effect to increase the appearance of the product. This is also the current situation. A commonly used decoration method. In recent years, wire drawing has been widely used in the shell decoration of a variety of electronic products, such as notebook computer panels, keyboards, mobile phone panels, and other digital product-related components.

Grade aluminum window profile aluminum alloy surface drawing is carried out by a drawing machine. For small flat workpieces, a flat pressure type abrasive belt drawing machine can be used. This drawing method can be processed with coarse-grained abrasive belts according to different surface requirements Rough and obvious silk patterns can also be processed by fine-grained sanding belts. For small workpieces, a rubbing machine with a simpler structure can also be used, and the thickness of the wire can also be controlled according to the size of the abrasive block. Roller brush wire drawing or wide abrasive belt wire drawing can also be used for large workpieces or plates. For the specific operation method of wire drawing, please refer to the operation manual of the wire drawing equipment.

The sandblasting or wire drawing discussed above has the function of concealing the surface defects of aluminum alloy workpieces while providing decoration. For sandblasting and wire drawing, wire drawing is easier to cover the surface defects of aluminum alloy workpieces. For deep wire drawing The pattern even allows obvious scratches, abrasions and other machining marks on the surface of the workpiece. For sandblasting, only slight scratches, abrasions, etc. are allowed. For workpieces with obvious machining marks, they should be polished or polished in advance before sandblasting.

After the drawing work piece undergoes alkali etching, it is possible to have a negative and positive surface (that is, when the surface of the work piece has different shades of mottling under a certain angle of light), this is mainly caused by material reasons, and the alkali is used before drawing. Erosion or acid etching can reduce or prevent the occurrence of such phenomena.