Method of preparing a magnesium alloy substrate for a surface treatment
View Patent ↗A method of preparing a magnesium alloy substrate for an electroless electro-deposition surface treatment includes cleaning the magnesium alloy substrate in a wet solution, whereby a magnesium hydroxide layer is formed on an outer surface of the magnesium alloy substrate, and heating the magnesium alloy substrate to a temperature sufficient to convert the magnesium hydroxide layer to a magnesium oxide layer.
1. A method of applying a surface treatment to a magnesium alloy substrate, the method comprising:
cleaning the magnesium alloy substrate with a wet solution, whereby a magnesium hydroxide layer is formed on the magnesium alloy substrate;
heating the magnesium alloy substrate to a temperature of at least two hundred degrees Celsius (200° C.) to transform the magnesium hydroxide layer into a magnesium oxide layer; and
applying a coating of an electro-deposition solution to the magnesium alloy substrate in the absence of an applied electrical charge in both the magnesium alloy substrate and the electro-deposition solution.
2. A method as set forth in claim 1 wherein cleaning the magnesium alloy substrate with a wet solution is further defined as cleaning the magnesium alloy substrate with an acidic water based cleaning solution.
3. A method as set forth in claim 1 wherein cleaning the magnesium alloy substrate with a wet solution is further defined as cleaning the magnesium alloy substrate with a basic water based cleaning solution.
4. A method as set forth in claim 1 wherein cleaning the magnesium alloy substrate with a wet solution includes submerging the magnesium alloy substrate in a bath of the wet solution.
5. A method as set forth in claim 1 wherein heating the magnesium alloy substrate to transform the magnesium hydroxide layer into the magnesium oxide layer includes heating the magnesium alloy substrate to a temperature of at least three hundred fifty degrees Celsius (350° C.).
6. A method as set forth in claim 1 wherein applying a coating of an electro-deposition solution to the magnesium alloy substrate in the absence of an applied electrical charge in both the magnesium alloy substrate and the electro-deposition solution includes submerging the magnesium alloy substrate in a bath of the electro-deposition solution to fully coat the magnesium alloy substrate.
7. A method of preparing a magnesium alloy substrate for a surface treatment, the method comprising:
cleaning the magnesium alloy substrate with a wet solution, whereby a magnesium hydroxide layer is formed on the magnesium alloy substrate; and
heating the magnesium alloy substrate to a temperature of at least two hundred degrees Celsius (200° C.) to transform the magnesium hydroxide layer into a magnesium oxide layer.
8. A method as set forth in claim 7 wherein cleaning the magnesium alloy substrate with a wet solution is further defined as cleaning the magnesium alloy substrate with an acidic water based cleaning solution.
9. A method as set forth in claim 7 wherein cleaning the magnesium alloy substrate with a wet solution is further defined as cleaning the magnesium alloy substrate with a basic water based cleaning solution.
10. A method as set forth in claim 7 wherein cleaning the magnesium alloy substrate with a wet solution includes submerging the magnesium alloy substrate in a bath of the wet solution.
11. A method as set forth in claim 7 wherein heating the magnesium alloy substrate to transform the magnesium hydroxide layer into the magnesium oxide layer includes heating the magnesium alloy substrate to a temperature of at least three hundred fifty degrees Celsius (350° C.).