Anodizing Condition Process

Generally anodizing process is associated with aluminum metal, but similar process of anodizing can be applied to several kind of base metal like magnesium, titanium, and zinc. Anodizing aluminum can be accomplished in wide variety of electrolytes, employing varying operation condition including concentration and composition of electrolyte. Anodizing can be process in several kind of process, that is used different anodizing bath solution, such as chromic acid process, sulfuric acid process, and oxalic acid anodizing bath. As on the table condition process of anodizing, there are two kind of anodizing process condition. For conventional anodizing and commercial anodizing process.

Bath Solution	% weight	Temperature, oC	Duration, min	Voltage, volt	Current Density, A/dm3
Sulfuric Acid Bath	10	18	15 - 30	14 - 18	1 - 2
Aluminate sulfuric acid bath	15	21	10 - 60	12 - 16	1.3
Oxydal Sulfuric Acid	20	18	30	12 - 16	1 - 2
Anodal and anoxal	20	18	50	12 - 16	0.3
Cromic acid bath	3	40	60	0 - 50	0.3
Chromic acid, Commercial	5 - 10	40	30 - 60	0 to increasing limit controlled by amperage	0.5 - 1.0
Oxalic acid, Eloxal	2 - 10	20 - 80	30 - 80	20 - 80	0.5 - 30
Oxalic acid, Oxal	2 - 10	20 -80	10 - 240	60	1.5
Oxalic acid, Ematal	1.2 - 40	50 - 70	30 - 40	120	3