METALLIC MOLD FOR MOLDING LENS AND GLASS MOLDING METHOD USING THE SAME

摘要: PROBLEM TO BE SOLVED: To provide a metallic mold used for the precision molding of glass preform to substrate magnetic disk or lens, by press method and having an excellent releasing property even when is repeated, using mold. SOLUTION: In consisting at least base material protective layer, layer consists one selected among Ir, Pt, Rh, Pd Re total concentration W, Co, Ni, Cr Fe surface not more than 1×10 17 atm/m 2 . COPYRIGHT: (C)2003,JPO