Abstract:
A method of anodizing comprising suspending at least one aluminium substrate into an electrolyte solution and applying an anodizing current to the electrolyte solution, wherein the electrolyte solution comprises from about 5 to about 99.5 wt.% glycerine, about 0.05 to about 5.0 wt.% of at least one orthophosphate salt selected from the group consisting of ammonium phosphates, alkali metal phosphates, amine phosphates, or mixtures thereof, and water.
Abstract:
A method of anodizing an aluminum substrate comprising heating the substrate to a first temperature of 200° C. to about 380° C.; suspending the substrate into a first electrolyte and applying a first anodizing current to the first electrolyte; rinsing the substrate; heating the substrate to a second temperature of 200° C. to about 380° C.; and suspending the substrate into a second electrolyte and applying a second anodizing current to the second electrolyte, wherein the first electrolyte and second electrolyte each comprise an aqueous solution of at least one salt of alpha-hydroxy acid.
Abstract:
A method of anodizing comprising suspending at least one aluminum substrate into an electrolyte solution and applying an anodizing current to the electrolyte solution, wherein the electrolyte solution comprises from about 5 to about 99.5 wt % glycerine, about 0.05 to about 5.0 wt. % of at least one orthophosphate salt selected from the group consisting of ammonium phosphates, alkali metal phosphates, amine phosphates, or mixtures thereof, and water.
Abstract:
A method of anodizing an aluminum substrate comprising heating the substrate to a first temperature of 200 DEG C to about 380 DEG C; suspending the substrate into a first electrolyte and applying a first anodizing current to the first electrolyte; rinsing the substrate; heating the substrate to a second temperature of 200 DEG C to about 380 DEG C; and suspending the substrate into a second electrolyte and applying a second anodizing current to the second electrolyte, wherein the first electrolyte and second electrolyte each comprise an aqueous of at least one salt of alpha-hydroxy acid.