Fasteners are the most common components in mechanical equipment, and their function is also very important. However, corrosion of fasteners during use is the most common type of damage. In order to prevent the use of fasteners during use, Corrosion phenomenon, many manufacturers will surface treatment after the production of fasteners, which surface treatment methods can improve the fasteners to prevent corrosion phenomenon? There are four main surface treatment methods to prevent corrosion of fasteners, We can choose the most appropriate method according to the specific needs of the situation:
First, electroplating
Electroplating standard parts, this method is to standard parts into the metal solution, and then through the current surface of the standard covered with a layer of metal, there are many roles for this layer of metal, for example, we can according to some different roles Choose some different plating metals. If we want to prevent the standard parts from rusting, we can electroplate zinc on the surface of standard parts.
Second, mechanical plating
The mechanical plating of the standard parts allows the metal particles to be cold-welded to the standard parts to ensure some of the effects of the standard parts. Mechanical plating and electroplating are basically similar, except that we use different methods. The result can be said to be the same.
Third, heat treatment
For the heat treatment of standard parts, there are some standard parts. For example, the drill screws require a harder surface layer. Therefore, the self-drilling screws can be heat treated to ensure that the drill screws have sufficient hardness. This is the reason for the heat treatment.
Fourth, the surface passivation
For passivation of standard parts, passivation mainly has two functions. One is to strengthen the hardness of standard parts, and the other is to make the oxidation of standard parts greatly reduced. In the fastener surface treatment process, we can choose the most appropriate method based on the specific needs. In this way, the fastener can play a better role in use.