Making pits:
A type of surface treatment. Steel shots of a certain diameter are sprayed on the surface of the part as needed to form uniform small pits to improve the surface fatigue strength of the chain.
Blue treatment:
After the parts are heated to a certain temperature, they are cooled and saponified by the chemical aqueous solution, making the surface of the parts appear blue. The blued chain has a beautiful appearance and is anti-rust.
Phosphating:
Immerse the parts in a phosphating solution of a certain temperature to form a phosphating layer on the surface of the parts, which can make the surface of the parts appear black or gray, improving the appearance of the chain and achieving anti-corrosion purposes. These phosphating solutions can be recycled and cause less environmental pollution.
Nickel plating:
Use electroplating or chemical nickel plating to form a nickel-free layer on the surface of the parts. The nickel plating layer can not only make the chain beautiful, but also prevent corrosion. Nickel-proof chains are generally used in open spaces.
Galvanized:
Use electroplating or chemical galvanizing to form a galvanized layer on the surface of the parts. The galvanized layer can not only make the chain beautiful, but also prevent corrosion. Galvanized chains are generally suitable for outdoor occasions•
Heat treatment:
In heat treatment equipment, various auxiliary media are used at high temperatures to improve the organizational structure of parts and improve various physical properties.