Please help to analyze the cause of the formation Fifty1070 aluminum rods are made of aluminum tubes from extrusion units. The process is: extrusion, melting - the mold passes through (the formation of aluminum tubes) - tap water cooling - closing - nitrogen charging and pressure maintaining. Therefore, the internal pipeline is nitrogen protection, and after a period of time, the pipeline will appear white powder, affecting resistance welding, welding is not firm, easy to fall off and leak.
AskIn fact, we suspect that it is alumina, but I don't know how to avoid it.Chasing the answerThere are two best ways:1. Keep the environment air dry.2. Apply anti oxidation coating for pipes.Or third: strengthen daily cleaning.
This is caused by the oxidation of aluminum tubes. It is usually in the rainy season. The humidity in the air increases, and it is oxidized by the long contact with the inner wall of the aluminum tube.
Landlord, that is the aluminum oxide (*^__^*) hee hee oh......
