Rust prevention by plating is mainly achieved by forming a stable metal cover layer on the metal surface through the electroplating process and combining it with antirust oil or other rust prevention measures.
Author: Anna
Rust prevention by plating is mainly achieved by forming a stable metal cover layer on the metal surface through the electroplating process and combining it with antirust oil or other rust prevention measures.
Electroplating is a process that utilizes the principle of electrolysis to coat the surface of certain metals with a thin layer of other metals or alloys. In this process, after the metal or alloy is dissolved by the electrolyte, ions invade the surface of the object through the electrodes and combine with the ions on the surface of the object, thus depositing a stable metal covering layer on the surface of the object.
This covering layer effectively protects the metal from oxidative corrosion and rust because it isolates the metal substrate from direct contact with air and harmful substances.
To further enhance the rust resistance of plated parts, additional rust prevention measures are usually taken after plating. One common method is the use of electroplating rust preventive oils. Electroplating rust preventive oil forms a dense protective film on the metal surface, which is not only extremely strong against rust and corrosion, but also prevents discoloration of the plated layer without affecting the gloss of the plated layer.
The use of antirust oil can be carried out by immersion, spraying or rubbing, etc. The specific method can be selected according to the specific conditions of the plated parts and the operation technical guidance.
In addition to the use of antirust oil, the antirust of plated parts also needs to pay attention to the protection during processing and transportation. Before plating, it should be ensured that the metal surface is thoroughly cleaned of impurities such as oil and dirt, and the surface is dried to avoid the formation of defects or affecting the quality of the plating layer in the plating process.
During the plating process, the salt spray resistance of the plating layer itself can be improved through the use of a specific plating process, thus enhancing its rustproof performance. In addition, in the transportation process, plating parts should be avoided as much as possible to be exposed to corrosive gases or high humidity and high temperature environment, and rustproof packaging with low salt spray resistance and water permeability can be used, and desiccant can be used appropriately to control the humidity in the transportation process.
To sum up, plating rust prevention is a comprehensive process, which requires joint efforts in plating process, use of antirust oil and protection during processing and transportation to ensure that the plated parts have good antirust properties.