Complex processing technology
In general, CVD is “bonding” by chemical reaction, whereas PVD is “evaporation” by collision energy,
so the adhesion is generally inferior.
In order to improve the adhesion of PVD, it is effective to reduce the difference of hardness
between the base material surface and the coating film.
The difference is expanded especially with the increasing hardness of PVD.
Therefore, SEAVAC adapted following technology as the base reinforcement.
Stripping (coating film removal) of CVD processing and PVD process are provided by SEAVAC.
In particularly, PVD processing is performed at temperatures below 500℃,
making it less thermal effects to the base metal, and also reducing the film cost by film removal reprocessing before the base material is severely damaged.