Dark blue dyed furnace sight glass with high infrared absorption

Details Dark blue dyed furnace sight glass with high infrared absorption Dark blue dyed furnace sight glass with high infrared absorption

1983-05-26

1985-06-25

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

65 29, 65 301, 65 90, 432 32, 501 31, 501904, 501905, C03C 304

Patent

active

045254621

ABSTRACT:
Dark blue dyed furnace sight glass of soda-lime-silica further containing carbon and oxides of iron and cobalt with substantially no infrared transmission and which sight glass affords a view of details in the melting operation. Other ingredients may include K.sub.2 O, MgO, Al.sub.2 O.sub.3 or ZrO.sub.2.

REFERENCES:
patent: 2034994 (1936-03-01), Sharp et al.
patent: 2755212 (1956-07-01), Brown
patent: 3378431 (1968-04-01), Smith et al.

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