Glasses frames made of the following materials and manufacturing processes generally do not fade or paint:
1.** Stainless steel frame * *: Stainless steel is an alloy with high corrosion resistance and wear resistance. The manufacture of stainless steel frames requires complicated technological processes, including calendering, stamping and polishing. Therefore, stainless steel frames generally have good durability and low risk of paint falling.
2.** Al-Mg alloy frame * *: Al-Mg alloy is a light and high-strength alloy with good corrosion resistance and fatigue resistance. The surface treatment of aluminum-magnesium alloy frame usually adopts anodic oxidation technology, which can form a hard oxide film to protect the frame surface from wear and corrosion.
3.** Memory titanium alloy frame * *: Memory titanium alloy is an alloy made of metals such as titanium and nickel, which has superelasticity. The surface treatment of memory titanium alloy frame usually adopts ion plating technology, which can form a hard protective film to prevent corrosion and wear.
However, even with the above materials and manufacturing process, the glasses frame may still fade or paint. This may be caused by prolonged exposure to air, sweat erosion, improper cleaning or contact with chemicals. In order to maintain the color of the glasses frame, it is recommended to clean the glasses frame frequently to avoid long-term exposure to high temperature and high humidity, and maintain it according to the manufacturer's instructions.
The above information is for reference only. It is suggested to consult the sales staff about the material and manufacturing technology of the spectacle frame when buying it, and how to maintain the spectacle frame to prolong its service life.