Vacuum spraying

Vacuum spraying or vacuum metallization is based on applying thin protective layers on dielectric substrates.

In order to carry out metallization, the applied metal has to be heated to the temperature at which it starts to evaporate. A commonly used method is resistance heating. In one of these solutions, the metal to be deposited is in the form of a wire through which an electric current is passed, causing it to heat up. Another method is arc heating.

In order to exclude the occurrence of disorderly chemical reactions connected with gases contained in the air and to increase the sputtering efficiency, the process is carried out in vacuum chambers.

An innovative solution developed at EnergoEl is the induction heating of metals to temperatures allowing for vacuum deposition. With induction heating of metals, there is no need to form wires or other specific shapes required for resistance heating.

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