How can zinc alloy die casting manufacturers prevent corrosion of die castings?

Release time: 2019-05-29

How can zinc alloy die casting manufacturers prevent corrosion of die castings?
Die castings produced by zinc alloy die casting manufacturers are common parts in mechanical equipment. Fasteners are often corroded during use. Many manufacturers are aware of this problem, find solutions to the problem, and summarize that there are four main surface treatment methods to prevent fasteners from corrosion:
I The method of electroplating standard parts is to put the standard parts into the metal solution, and then cover the surface of the standard parts with a layer of metal through the current. This layer of metal has many functions. For example, we can choose some different coated metals according to some different functions. If we want to prevent the standard parts from rusting, we can plating zinc on the surface of the standard parts.
II For surface heat treatment of standard parts, some standard parts, such as drilling screws, require a relatively hard surface. Therefore, drilling screws can be heat treated to ensure that the drilling screws have sufficient hardness. This is the reason for heat treatment.
III Mechanical plating on standard parts means that metal particles are cold welded to the standard parts to ensure some functions of the surface layer of the standard parts. Mechanical plating and electroplating are basically similar, but we use different methods, and the results can be said to be the same.
IV For surface passivation of standard parts, passivation has two main functions, one is to strengthen the hardness of standard parts, and the other is to greatly reduce the oxidation of standard parts. In the process of fastener surface treatment, we can choose the appropriate method according to the specific situation. In this way, fasteners can play a better role in the use process.

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