Increasing corrosion resistance of nitrocarbide surface/nitrocarbide and oxide of steel piece, by degassing surface of piece/construction element under vacuum, exposing piece to gaseous atmosphere, and applying protection agent on surface

摘要

The process for increasing the corrosion resistance of the nitrocarbide surfaces or nitrocarbides and oxides of a steel piece (2), comprises degassing the surface of the piece or construction elements under vacuum (3) for 20-30 minutes at a temperature of 50-110[deg] C and a pressure of 0.01-800 mbar, exposing the piece to gaseous atmosphere, and applying a protection agent against corrosion on the surface of the part. The protection agent is oil, wax or polymer. An independent claim is included for a device (1) for increasing the corrosion resistance of the nitrocarbide surfaces or nitrocarbides and oxides of a steel piece.