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:
Fastener plating
First, the standard parts of the plating, 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 The role of selection of a few different coating metals, if we want to prevent the standard parts from rusting, then we can electroplating zinc on the surface of standard parts. The
Fastener heat treatment
Second, for standard parts surface heat treatment, there are some standard parts, such as the need for a relatively rigid hard surface screws, so you can heat the drilling screws, to ensure that the drill screws have enough hardness. This is the reason for the heat treatment.
Mechanical plating of fasteners
Third, the mechanical plating of standard parts is to allow the metal particles to be cold-welded to the standard parts to ensure some of the role of the standard part of the surface. Mechanical plating and electroplating are basically similar, except that we use different methods. The result can be said to be the same.
Surface passivation of fasteners
Fourth, for the 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.