Vacuum coating machine composition and structure

The vacuum coating machine is the most used equipment for coating under vacuum conditions. A complete vacuum coating machine consists of a multi-part system, each system performs different functions to achieve the final high-quality coating. The composition includes a vacuum chamber, a vacuum test system, a vacuum pumping system, a film forming control system, an oil diffusion pump, a Roots pump, a condensing pump, a mechanical pump, and the like.

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The main body of the vacuum coating machine is a vacuum chamber. The size of the vacuum chamber is determined by the processed product. The size of the vacuum chamber can be customized. The cavity is generally made of stainless steel, which requires strong durability and no rust. The vacuum chamber has a number of connecting valves for connecting various auxiliary pumps.

The vacuum system is composed of mechanical pump + diffusion pump + Roots pump. The vacuum system is an important part of the vacuum system of the coating machine. The degree of vacuum directly affects the coating effect of the product, and the vacuum degree is obtained by the vacuum test system.

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The film formation control system can use different methods, such as fixed plating time, visual inspection, extreme value monitoring, crystal oscillation monitoring and the like. The coating method is also divided into a variety of processes, commonly used ion evaporation coating and magnetron sputtering coating. The film deposited by magnetron sputtering has strong adhesion and high purity of the film layer. It can be used to sputter a variety of materials with different compositions. Ion evaporation coating can improve the compactness, bonding and uniformity of the film.

Vacuum coating machines are usually tailored to the actual product process requirements, costing hundreds of thousands to tens of millions. Machines and equipment that use manual operation are relatively cheap, generally in the millions or so. The high technical content can realize the cost of fully automated machine equipment several times higher. The well-known domestic enterprises can achieve semi-automatic operation, and a few technologies can be used. Fully automated, such as: Zunhua Baorui Titanium machine.