METHOD OF TREATMENT AGAINST CORROSION AND AGAINST WEAR

摘要

Subjecting an aluminum or aluminum alloy substrate to anti-corrosion and anti-wear treatment that is applicable in particular in the field of aviation for protecting certain mechanical parts of airplanes or helicopters that are subjected simultaneously to corrosion and to wear, including applying to the substrate, a sol-gel treatment step forming a sol-gel layer; and after the sol-gel treatment step, a hard oxidation step forming a hard oxide layer.

主权项

1. A method of subjecting an aluminum or aluminum alloy substrate to treatment against corrosion and against wear, the method comprising applying the following steps to the substrate:
a sol-gel treatment step forming a sol-gel layer; after the sol-gel treatment step, a hard oxidation step forming a hard oxide layer; and prior to the sol-gel treatment step, an additional oxidation step forming an additional oxide layer.