large volume galvanized iron wire
Large-volume galvanized iron wire
is widely used in practice. It also has certain harmful effects, and it is rust and corrosion. Therefore, galvanizing can be used to prevent product corrosion. In addition to this method, the common treatment methods for metals are phosphating, oxidation treatment, etc. Let us introduce the characteristics of these two methods.we are provide galvanized iron
Phosphating treatment of metal: After the oil and steel products are degreased and rusted, they are immersed in a specific composition of the acid salt solution to form a water-insoluble acid salt film on the metal surface.
This process is called phosphating. The large-volume galvanized silk phosphating film is dark gray to black gray, and the thickness is generally 5-20 μm, which has good corrosion resistance in the atmosphere. The membrane is a microporous structure and has strong adsorption capacity for paints and the like. For example, it is used as a paint primer layer, and corrosion resistance can be further advanced.
Oxidation treatment of metal: The steel product is added to a mixed solution of NaOH and NaNO2, and heat-treated to form a blue oxide film (mainly Fe3O4) having a thickness of about 0.5-1.5 μm to reach the steel. For the purpose of corrosion protection, this process is called blue treatment, referred to as blue. This oxide film has greater elasticity and lubricity and does not affect the accuracy of the part.
When galvanized iron wire is used, it will inevitably encounter some problems, but everyone knows how to deal with it when encountering some problems. This is very important. The following wire factory will introduce you briefly and give it to everyone. Popularize some of the problems you may encounter and hope to help everyone.
The duration of the galvanizing protection of the galvanized iron wire
is highly dependent on the thickness of the coating. Generally, the thickness of the galvanized layer needs to be high in a relatively dry main gas and in indoor use, and in a relatively harsh environment. Therefore, the influence of the environment should be considered when selecting the thickness of the galvanized layer.
After passivation of the galvanized layer, a layer of bright and beautiful color passivation film can be formed, which can significantly improve the performance of the paddle decoration performance.