Process for producing glass mold

Details Process for producing glass mold Process for producing glass mold

1988-09-15

1989-11-28

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

653741, 6537413, 6537415, 427 34, B23P 1700

Patent

active

048828270

ABSTRACT:
According to the present process for producing a glass mold, a base for a glass mold to be produced is subjected to a sputtering treatment using an inert gas and graphite as a target at a mold base temperature of 250.degree.-450.degree. C., and thereby is formed on the mold base a hard carbon film having excellent adhesion to the mold base and excellent hardness and being unliable to cause fusion bonding to a molded glass article produced. Accordingly, the glass mold produced according to the present process has excellent durability and excellent glass releasability.

REFERENCES:
patent: 3486878 (1969-12-01), Greenler
patent: 3833347 (1973-03-01), Angle et al.
patent: 3979196 (1976-09-01), Frank et al.
patent: 4139677 (1979-02-01), Blair et al.
patent: 4168961 (1979-09-01), Blair
patent: 4590031 (1986-05-01), Eichen et al.
patent: 4606750 (1986-08-01), Torii et al.
J. Amer. Ceram. Soc., vol. 54, No. 12, pp. 605-609, (1971), by Kaae et al.

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