Fasteners are the most common parts in mechanical equipment, and their function is very important. However, corrosion of fasteners during use is the most common type of damage. In order to prevent fasteners from occurring during use Corrosion phenomenon, many manufacturers will perform surface treatment on fasteners after they are produced, so which surface treatment methods can be used to improve fasteners to prevent corrosion?
There are four main surface treatment methods to prevent the corrosion of fasteners. We can choose the most suitable method according to the needs of the specific situation:
Electroplating the standard parts. This method is to put the standard parts in the metal solution, and then pass the electric current to cover the surface of the standard parts with a layer of metal. There are many effects on this layer of metal. For example, we can use some different functions. Choose some different plating metals. If we want to prevent the standard parts from rusting, then we can electro-galvanize the surface of the standard parts.
2. Mechanical plating
The mechanical plating of the standard parts is to make the metal particles cold weld the standard parts to ensure some functions of the surface layer of the standard parts. Mechanical plating and electroplating are basically similar, but the methods we use are different, and the results can be said to be the same.
3. Heat treatment
For the heat treatment of the surface of standard parts, some standard parts, such as the self-drilling screws need a harder surface, so the self-drilling screws can be heat-treated to ensure that the self-drilling screws have sufficient hardness. This is the reason for heat treatment.
4. Surface passivation
For the surface passivation of standard parts, passivation has two main functions. One function is to strengthen the hardness of standard parts, and the other function is to greatly reduce the oxidation of standard parts. When carrying out the surface treatment process of fasteners, we can choose the most suitable method based on the needs of the specific situation. In this way, the fastener can play a better role in the use process.
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