Patent ID: 6701750
Filing Date: 2004-03-09
Classification: C03B,Y02P

Abstract:
A method of molding a glass product by pressing a glass gob by the use of a mold comprising an upper die and a lower die, each of said upper and said lower dies having a molding surface, said method comprising:a supplying step of supplying as said glass gob a molten glass onto the molding surface of said lower die; a cooling step of cooling an upper surface of said glass gob supplied onto the molding surface of said lower die; a heat radiation suppressing step of suppressing, after said cooling step, heat radiation from said glass gob so that an inner part and an upper part of said glass gob are close in temperature to each other; and a pressing step of pressing, after said heat radiation suppressing step, said glass gob by the molding surfaces of said upper and said lower dies when said glass gob has a viscosity within a range between 103.5 and 106.5 poises (dPaÂ·s).