Sputtering of Glass mosaic titanium gold coating machine
Arc Discharge: An electric arc or arc discharge is an electrical breakdown of a gas that produces an ongoing electrical discharge. The current through a normally nonconductive medium such as air produces a plasma; the plasma may produce visible light. An arc discharge is characterized by a lower voltage than a glow discharge, and it relies on thermionic emission of electrons from the electrodes supporting the arc.
Multi-arc ion coatings can be deposited in a wide range of colors. The range of colors can be further enhanced by introducing reactive gases into the chamber during the deposition process. The most widely used reactive gases for decorative coatings are nitrogen, oxygen, argon or acetylene. The decorative coatings are produced in a certain color range, depending on the metal-to-gas ratio in the coating and the structure of the coating. Both of these factors can be altered by changing the deposition parameters.
Prior to deposition, the parts are cleaned so the surface is free of dust or chemical impurities. http://www.lk-bts.com/glass-pvd-coating-machine/