What Is Mirror Mastic?

The flatness and finish of the surface of gold and silver coins is called the mirror surface of gold and silver coins. The more refined gold and silver coins, the higher the flatness and smoothness of the mirror surface. In terms of technical treatment, the flat part of the production mold and the surface of the cake must be strictly polished in order to produce a high-precision mirror effect.

[jìng miàn]

The surface of a mirror, such as specular reflection.

Cylinder barrels are the main components of oil cylinders, mining single props, hydraulic supports, gun barrels and other products, and the quality of their processing directly affects the entire

Rolled cylinder

Product life and reliability. The cylinder tube has high processing requirements, and its inner surface roughness must be Ra0.4 0.8 & micro; m. It has strict requirements on coaxiality and wear resistance. The basic feature of the cylinder is deep hole machining, which has always troubled the processing staff. Rolling processing is used, because the surface layer is left with residual compressive stress on the surface, which helps to close the surface of small cracks and hinder the expansion of erosion. Thereby, the anti-corrosion ability of the surface is improved, and the generation or expansion of fatigue cracks can be delayed, thereby increasing the cylinder fatigue strength. Through roll forming, a cold hardened layer is formed on the rolled surface, which reduces the elastic and plastic deformation of the contact surface of the grinding pair, thereby improving the abrasion resistance of the inner wall of the cylinder barrel and avoiding burns caused by grinding. After rolling, the surface roughness value is reduced, which can improve the mating properties.

Mirror surface processing requirements are widely used. Almost all machinery such as automobiles, engineering machinery, ships, trains, printing machinery, fax machines, etc. have mirror surface processing requirements. In particular: cylinders, hydraulic valves, and piston rods in the hydraulic industry require not only light, but also resistance to wear and tear, and at the same time, they must not cause wear on seals or seals. The hydraulic cylinders of most construction machinery in China will leak at the sealing cover after a period of use, which is because the seals or seals are worn during movement.