Mold for direct press molding of optical glass element

Details Mold for direct press molding of optical glass element Mold for direct press molding of optical glass element

1984-12-07

1986-08-19

Lindsay, Robert

Glass manufacturing

Apparatus made of special material

Ceramic material

6537415, 249134, C03C 934, B26B 734

Patent

active

046067507

ABSTRACT:
A mold used for manufacturing optical glass parts by the direct press molding of lumps of raw optical glass. The pressing surface of the mold is made of a material comprising .alpha. type SiC or amorphous SiC or a mixture of both. The pressing surface may be a coated film on a base body of hard alloy or high density carbon.

REFERENCES:
patent: 1378189 (1921-05-01), Northrup
patent: 3286312 (1966-11-01), Davis et al.
patent: 3435881 (1969-04-01), Smith et al.
patent: 4139677 (1979-02-01), Blair et al.
patent: 4391622 (1983-07-01), Alting et al.
patent: 4425407 (1984-01-01), Galasso et al.
patent: 4432957 (1984-02-01), Gupta et al.

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