Rolled annealed copper foil

Rolled copper foil is manufactured from thick copper ingots by repeated rolling and annealing processes, and has better flexibility than electrodeposited copper foil.

It is often used for flexible circuit boards and fine circuit boards. It is also widely used in fields where high heat resistance, high strength, and high conductivity are required.

Manufacturing process of rolled annealed copper foil

Ingot → Hot rolling → Surface grinding → (intermediate rolling ⇔ annealing) repetition → Finish rolling → Degreasing → Surface treatment

Rolled annealed copper foil manufacturing equipment

  • Hot rolling mills
  • Intermediate rolling mills
  • Finishing rolling mills
  • Copper foil rolling mills
  • Degreasing equipment
  • Surface treatment equipment
  • Slitter and inspection equipment