Technology for Micro-Arc Oxidation on Components

Micro Arc Oxidation Process
Micro-arc oxidation (MAO) technology is a new technology that allows the surface of aluminum, magnesium, titanium and their alloys to react in situ in the electrolyte to form their own ceramic oxides. The figure below is a schematic diagram of the main equipment of micro-arc oxidation. It can be seen from the figure that the workpiece 5 is used as the anode and the stainless steel electrolytic cell 4 is used as the cathode.
About Topdoer
TOPDOER PVT LTD is constantly exploring to bring the latest research on protective coating for different industrial applications . We recently developed successfully plasma equipment and micro-arc oxidation equipment technology in India . We are now offering this technology and solutions to Indian customers who are looking for advance solutions for their critical components .
Highlights of
Micro Arc Oxidation
Film Thickness
During micro-arc oxidation, because it is an immersion operation, there are precision holes, which should be covered by fixtures
Salt Spray Requirements
Generally divided into copper salt accelerated, neutral, acidic, etc. After micro-arc oxidation of aluminum alloy, the surface is aluminum oxide, which is acid-resistant but not alkali-resistant.
Crash/Drop Test
The micro-arc oxidation coating has good adhesion and is relatively hard, but when doing drop tests, you should consider avoiding sharp corners.
Hanging Point
Micro-arc oxidation is different from anodizing in that close surface contact is required between the anode and the product. Especially magnesium alloy, if hung
Color
Micro-arc oxidation is not an appearance surface treatment process, and colors other than black and white are difficult to meet appearance and color difference standards.
Mao Application
