Benefits of Vacuum Metalizing
Vacuum metalizing involves putting metals in a vacuum chamber to form a metalized layer. The procedure is mostly done on aluminum. Vacuum metalizing has many uses such as EMI coating, vapor barriers, metallic finishes, reflective coating and many others. Vacuum metalizing can either be for protective, functional or decorative purposes. To vaporize the coating metal, resistance heating, plasma heating or electron beam can be used. Vacuum metalizing is used to deposit aluminum on big glass mirrors of reflecting telescopes. The first step in vacuum metalizing is to choose the right vacuum level. The temperatures must be at the right standard for the metal to vaporize. Lastly there is need to increase the distance which metal travels through space.
Toys and jewelry are decorated using vacuum metalizing which makes them glow and become highly reflective. The original material is either plastic or metal. The surface is first made smooth without mechanical buffing to give it stunning reflection. Metal has an outside part that is coated which is referred as the front face. To prevent damage of the front face, it is covered with a transparent vanish. Transparent plastic that is used to cover the back of a dashboard is referred as second surface coating. The advantage with second surface coating is that the use of plastic as the exposed part. Aluminum is mostly proffered because it is a good conductor of heat, reflects well and is known to be stable in air. Toapcoat vanish can include gold and silver coloring. However other metals such as copper, silver, gold, chromium and cadmium are used. Large surfaces can be metalized through a continuous process.
The material is mounted in vacuum chamber and unrolled for coating of one side or either side. It is important to have large volumes of aluminum for evaporation. Most recently, vacuum metalizing has been widened to include thick films. The coatings on the thick films are resistant to rust. EMI shielding, RFI shielding, ESD shielding and heat shielding are done through vacuum metalizing. They are affordable and environmentally friendly as opposed to other shielding processes. EMI/RFI shielding can be used in different industries like, telecommunication, electronics, medical, military and many other industries. Recycling of metalized plastics is possible. The aluminum coating is oxidized as soon as it is exposed to air in the vacuum chamber. The electrical sensitivity won’t change after initial exposure.
To ensure plastics and jewelry last for a long time vacuum metalizing is important because of the metallic shine. If you are not sure where to get the best vacuum metalizing service providers, you can view different sites on the internet. Take a close look at the company’s profile. The capabilities and experience will all be in the company’s profile. The ratings and reviews will assist you to choose genuine vacuum metalizing service providers. Many vacuum metalizing companies are flexible to meet the demands of different clients. You can always talk to the service providers and get to know all about vacuum metalizing.