Common operating procedures of evaporation coating machine vacuum system

The vacuum evaporation coating machine has strict requirements for the operation of various vacuum systems, the start-stop process, protection from pollution when a fault arises, etc., and should comply with the operating procedures.

1.Mechanical pumps, which can only pump up to 15Pa~20Pa or higher, otherwise it will bring serious backflow pollution problems.
2, Adsorption pump, to configure anti-pressure burst device, to avoid accidents after the warm back.
3、When stopping, the cold trap should be isolated from the vacuum chamber, and the high vacuum pump should be stopped only after the liquid nitrogen is excluded and the temperature is returned.
4, Diffusion pump, before normal operation and stop pump within 20min, oil vapor pollution is very large, so shall not be connected with the vacuum chamber or cold trap.
5, Molecular sieve, avoid molecular sieve adsorption trap in the molecular sieve solid powder or absorption by the mechanical pump. If the vacuum system of evaporation coating machine can’t reach the vacuum degree requirement or can’t be pumped, you can check the working status of the pumping device first, then check whether the bleed source exists. Before assembling the vacuum parts, the vacuum system should be cleaned, dried and checked for leaks, and then it chould be used only after it is qualified. Then check the clean state of the the removable part seal ring, the scratch problem of the seal surface, the tight connection problem, etc.

Anti-fingerprint coating equipment

The anti-fingerprint coating machine adopts magnetron sputtering film-forming technology, which not only solves the performance problems of film adhesion, hardness, dirt resistance, friction resistance, solvent resistance, aging resistance, blister resistance and boiling resistance, but also can produce AR film and AF film in the same furnace, which is especially suitable for the mass production of metal and glass surface color decoration, AR film, AF/AS film. The equipment has large loading capacity, high efficiency, simple process, easy operation and good film layer consistency. In addition to the superior film layer performance, it has an environmentally friendly process.

The equipment has been widely used in layer in the surface processing field of cell phone glass cover, cell phone lens, explosion-proof film, etc., to coating AR+AF, so that these products have better dirt resistance, easier to clean the surface and longer life.