China Die Casting Supplier Introduces The Use Characteristics O

  • Aluminum alloy dies castings have certain applications in the automotive, electronics, home appliances, and communications industries. People are constantly improving this product in various aspects, but people find it difficult to electroplate this product. Next,China Die Casting Supplier will introduce why aluminum alloy die castings can not be electroplated.

    When electroplating aluminum alloy die-casting, it is necessary to have a good bond between the plating layer and the product itself, but we all know that there is an extremely fine oxide film on the surface of the aluminum material. Even if this oxide film is removed, it will be very strong. Quickly produce new ones in a short time. This layer of film severely blocks the combination of plating and aluminum, which is the first reason why it is difficult to electroplating. Secondly, the electrode potential of aluminum is very negative. When the electroplating solution is ready to be immersed, it is very easy to exchange positions with metal ions with a more positive potential, which will also affect the binding force of the coating. Aluminum is an amphoteric metal, which is easily soluble in acid and alkali solutions. It is not stable in these two types of electroplating solutions, and it is difficult to realize electroplating.

    Finally, if there are pores and sand holes on the aluminum alloy die casting, it will cause a part of the plating solution and hydrogen to remain, prone to bubbling, and will also reduce the bonding force between the plating layer and the base metal, making the surface of the casting difficult to be successfully electroplated.

    Through the above introduction, Aluminum Die Casting Factory hopes that you can simply refer to the content of this article in future use.