PELINDUNG BAGIAN DALAM PADA TABUNG SINAR KATODA BERWARNA DAN METODE PEMBUATANNYA

摘要

The present invention discloses a method for fabricating an inner shield for use in a color cathode ray tube, for preventing degradation of a color finesse of the color cathode ray tube, the method including the steps of drawing or forming a piece of thin sheet of aluminum killed steel to form an inner shield of required form, annealing the inner shield in a reducing atmosphere at a temperature above a recrystallization temperature of the aluminum killed steel for improving a non-uniform magnetic distribution thereof, and coating black ironoxide film on a surface of the annealed inner shield.