The need to rinse aluminium sheet workpieces after alkaline washing

Aluminum plate workpiece alkaline wash after rinsing is not complete. If the alkaline solution entering the orifice during alkaline cleaning is not rinsed clean, the alkaline solution will flow out of the orifice after oxidation treatment, resulting in corrosion of the oxide film around the orifice. There is a live crag around the eyelet of the aluminium sheet workpiece.

Aluminum profile tapping screw hole is very astringent, the operator is often coated with live crag to lubricate, alkali washing if the lack of emulsifier in the alkali solution, live crag is very difficult to get rid of. By the alkali etching solution in the accumulation of aluminum ions caused by high failure of a reader called to ask the workpiece by the alkali etching is difficult to obtain the cause of the conductive oxide film, by the conductive oxide film is difficult to form after the exclusion of many factors, consider the alkali etching solution in the question of whether there is too high aluminum ions, the other party said that the alkali etching solution is very thick. But the alkali etching speed is not fast.

At that time, the aluminium plate was replaced with an alkali etching solution, because the alkali etching solution would accumulate too many aluminium ions after being used for too long, and the aluminium ions were more difficult to elute from the surface of the workpiece, thus affecting the contact between the surface of the aluminium parts and the conductive oxidation solution, thus affecting the formation of the oxide film.

All the above-mentioned is the basic introduction of the need to rinse aluminium sheet workpieces after alkaline washing. Haomei is a professional aluminum manufacturer, supplier and wholesaler, and we provide aluminum sheets made of various aluminum alloy grades and tempers. Also, we are able to do customization according to your specification on size, colors and process method. If you want to know more about types of aluminum products we provide for sale, you can directly leave us your question clicking the message box to get a more accurate and effective reply. Should you be interested in buying Haomei aluminum products, please contact us.