Sandblasting metal labels is a method of computer lettering. The engraved sticky notes are glued to the metal plate, and the text graphics are sandblasted to form a sand surface effect, and then subjected to oxidation treatment, so that the metal plate shows placer gold Effect metal label.
The process flow of sandblasting metal labels:
1. Pretreatment stage of sandblasting process: The pretreatment stage of sandblasting process refers to the treatment of the surface of the workpiece before it is sprayed and sprayed with a protective layer. The quality of the pre-treatment of the sandblasting process affects the adhesion, appearance, and moisture resistance and corrosion resistance of the coating. If the pretreatment work is not done well, the rust will continue to spread under the coating, causing the coating to fall off in pieces. After careful cleaning of the surface and the general simple cleaning of the workpiece, the life of the coating can be 4-5 times different by using the exposure method. There are many methods of surface cleaning, but the most commonly accepted methods are: solvent cleaning, pickling, hand tools, and power tools.
2. Sand blasting process stage: The sand blasting process uses compressed air as the power to form a high-speed jet beam, spraying materials and other high-speed jets onto the surface of the workpiece to be treated, so that the outer surface of the workpiece changes, due to the impact of the abrasive on the surface of the workpiece The cutting action makes the surface of the workpiece obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the surface of the workpiece are improved.
