Glass molding die

Details Glass molding die Glass molding die

2006-12-12

2006-12-12

Griffin, Steven P. (Department: 1731)

Glass manufacturing

Apparatus made of special material

Metal-nonmetal composite

Reexamination Certificate

active

07146828

ABSTRACT:
A molding die for molding glass thousand times is provided in the invention. The molding die includes a substrate, a first intermediate layer of Ni-containing Ir—Re alloy overlying the substrate, a second intermediate layer of metal-containing Ir—Re alloy overlying the first intermediate layer, and a passivation film overlying the second intermediate layer. The Ni concentration of the first intermediate layer decreases gradually with distance from the substrate/first intermediate layer interface. The metal is Cr, Ta, Ti, or Ti—Cr alloy. The metal concentration of the second intermediate layer increases with distance from the first intermediate layer/second intermediate layer interface.

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