Zinc immersion for sports equipment is a surface treatment process that is mainly used to improve the corrosion resistance, wear resistance and aesthetics of sports equipment. The following is a detailed introduction:
principle
Zinc immersion is to immerse the parts of sports equipment in a solution containing zinc salts and other additives, and form a zinc phosphate film on the surface of the parts through chemical reactions. This phosphate film has good corrosion resistance and wear resistance, and can protect the metal surface of sports equipment from erosion by the external environment.
Processing Flow
Pretreatment: Before zinc immersion, the parts of sports equipment need to be pretreated, including degreasing, rust removal, water washing, etc. The purpose of these steps is to remove oil, rust and other impurities on the surface of the parts to ensure that the zinc phosphating film can be firmly attached to the metal surface.
Zinc immersion: The pre-treated parts are immersed in zinc phosphating solution. The immersion time and temperature are adjusted according to the material, shape and size of the parts. Generally speaking, the immersion time is 10-30 minutes and the temperature is 50-70℃. During the immersion process, the zinc ions in the phosphating solution will react chemically with the metal on the surface of the parts to form a uniform zinc phosphating film.
Post-treatment: After zinc immersion, the parts need to be post-treated, including washing, drying, oiling, etc. The purpose of washing is to remove the residual phosphating solution and impurities on the surface of the parts, the purpose of drying is to remove the moisture on the surface of the parts, and the purpose of oiling is to form a protective film on the surface of the phosphating film to further improve the corrosion resistance and wear resistance of sports equipment.
advantage
Good corrosion resistance: The zinc phosphating film can effectively isolate the metal surface from the external environment and prevent the metal from rusting and corroding. This is especially important for sports equipment that is often exposed to humid environments or sweat, and can extend the service life of sports equipment.
Improve wear resistance: Zinc phosphating film has a certain hardness and roughness, which can improve the wear resistance of the surface of sports equipment and reduce the wear and damage caused by friction. This can improve the performance and life of some sports equipment that needs to be used frequently and withstand high friction, such as dumbbells, barbells, etc.
Enhanced adhesion: Zinc phosphating film can improve the adhesion between the surface of sports equipment and other materials such as coatings and plastics, allowing these materials to better adhere to the metal surface, thereby improving the appearance quality and decorativeness of the sports equipment.
Environmental protection and energy saving: The zinc-based immersion process is relatively simple, does not require special conditions such as high temperature and high pressure, and has low energy consumption. At the same time, the components in the zinc-based phosphating solution are relatively environmentally friendly and have less pollution to the environment.