GLASS PRODUCT FOR CATHODE-RAY TUBE

摘要

PROBLEM TO BE SOLVED: To improve productivity enabling heating and softening with ease at sealing without inducing degradation of strength by making a suitable improvement on a peripheral shape of a sealing end face of a panel and funnel. SOLUTION: A thin-tip part 8 having a diminishing thickness part 9 with a higher rate of diminishing of the thickness toward the tip than a standard design shape in a region A of an adjacent base end side is formed in a region between a tip part 7a of a sealing end face 7 at each side 6 of glass products for a cathode-ray tube consisting of a panel 1x and a funnel 1y and a vicinity of a position separated from the tip part 7a by 5 mm in a direction parallel with a tube axis Z. Further, provided the thickness of the position separated by 1 mm from the tip part 7a in a direction parallel with the tube axis Z is t1, and the thickness at the position separated from the tip part 7a in the same direction by 5 mm is t0, it is so set to satisfy the relation: 0.3≤t1/t0≤0.7. COPYRIGHT: (C)2004,JPO