Patent ID: 8877292

Claim:
A method for manufacturing a bicycle wheel, the wheel being made of composite material comprising carbon fiber, glass fiber, or Kevlar fiber, and having two opposite braking surfaces, the method comprising: sand blasting the braking surfaces to remove a releasing agent layer coated on the wheel; polishing the braking surfaces to become smooth; heating the wheel to about 100° Celsius in a spraying machine; spray-coating the braking surfaces at least twice with a heated spray material selected from the group consisting of polytetrafluoro ethylene, fluoride ethylene-propylene copolymer, ethylene-tetrafluoro ethylene copolymer, and mixtures thereof until a thickness of the material is bigger than 0.4 cm, wherein the spray material is heated to 100° Celsius before spray-coating onto the braking surfaces; and gradually heating the wheel to at most 180° Celsius to set the spray material and form fluoride polymer layers.