The causes of the difficult formation of oxide film in and around the perforation of Aluminum profile oxidation parts are analyzed
There are two main reasons why it is difficult to form an oxide film in and around the perforated eye of aluminum profile oxidation parts:
There are two main reasons why it is difficult to form an oxide film in and around the perforated eye of aluminum profile oxidation parts:
1, aluminum profile workpiece alkali wash after washing is not thorough. If the lye entering the hole eye during alkali washing fails to wash clean, the oxidation treatment will promote the flow out of the cylinder eye, resulting in corrosion of the oxide film around the eye.
2, aluminum profile workpiece around the hole around the cliff. Aluminum screw hole is very astringent, the operator often to apply the living cliff to lubricate, alkali washing if the lack of emulsifier in the lye, the live cliff is very difficult to remove.
Solution:
1, before the alkali wash with gasoline wash again, alkali lotion should be added emulsifier;
2, the workpiece alkali should be washed clean after washing.
Source link
Link to this article：The causes of the difficult formation of oxide film in and around the perforation of aluminum profile oxidation parts are analyzed
Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting:Alloy Wiki，thanks！^^
