I do not know compared with copper tube, durable, long time will appear trachoma?
Disadvantages of aluminium tube material for refrigerator:Encountered sharp or hard things, easy to scratch and deformation.After the surface oxide layer has been destroyed, it is in a humid state and is easy to oxidize.
The aluminium material used in refrigerator is because:Aluminum costs lower prices.Now the processing of aluminum tube material (such as molding, surface oxidation treatment, copper aluminum joints, etc.) have reached a relatively advanced level.In the assembly design, are basically installed in a relatively hidden and protected place.
So we need to use it properly:Do not strike or defrost with sharp or hard material to prevent damage.Not special circumstances, long-term use of the refrigerator, because it is covered with a layer of ice can be isolated from the air to prevent oxidation.Put the refrigerator in a dry and airy place.
The best thing about a refrigeration pipe (household system) is a copper tube. They replaced the copper tubes with aluminium tubes because the aluminum tubes were cheap and the oldest refrigerators and freezers were all copper. Trachoma basically does not have unless the welding mouth is not welded well.
