Friends who are familiar with appearance processing skills know that mirror rolls are an indispensable part of surface calendering, so how are mirror rolls made? The sandblasting manufacturing skills facing the mirror roll are introduced below. Zh

Mirror roller refers to smooth seamless steel pipe. The main factor determining the mirror roll is the appearance of the chrome coating.

Sandblasting is a physical method to deal with problems that are difficult to handle with chemical methods. Sand blasting technology uses compressed air as the power to form a high-speed blasting beam to blast the blasting material (shot glass beads, steel shot, steel sand, quartz sand, corundum, iron sand, sea sand) to the surface of the workpiece to be processed at high speed, so that The mechanical properties of the appearance of the workpiece have changed. Due to the impact and cutting action of the abrasive on the appearance of the workpiece, the appearance of the workpiece has a certain degree of cleanliness and different roughness, which improves the mechanical properties of the appearance of the workpiece. The fatigue resistance of the workpiece increases the adhesion between it and the coating, prolongs the durability of the coating film, and is also conducive to the smooth decoration of the coating. The roughening of the surface of the medium makes the residual stress on the surface of the substrate and the effect of improving the surface hardness of the substrate. One of the manufacturing methods of rollers—etching is a chemical appearance treatment, which sometimes affects the appearance of the product. Zh

Sandblasting skills can be divided into: (1) full gloss (100%): glass sand (2) semi-gloss (50%): 50% glass + 50% gold sand (3) matte (0%): gold steel Sand (alumina sand) is difficult to adjust its gloss completely with a single blasting treatment due to the different resin materials used and the difference in injection molding conditions, so it must be repeated several times.