Process and devices for hardening of glassware by ion exchange

Details Process and devices for hardening of glassware by ion exchange Process and devices for hardening of glassware by ion exchange

1981-05-22

1983-08-09

Fisher, Richard V.

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65115, 65170, 65348, 65349, 65375, C03B 2702, C03C 2100

Patent

active

043976689

ABSTRACT:
The present invention is directed to an apparatus and process for the ion change hardening of glassware by passing the glassware through a stream of molten salt. The glassware may be arranged at different levels on a conveying means, provided with perforations to allow the molten salt to fall from level to level from an overhead salt distributor. The glassware may be positioned on a horizontally spinning rack so that molten salt continuously fills up and empties from the glassware. The molten salt is recycled from the bottom of the apparatus and may be replenished by adding salt to the recycle stream.

REFERENCES:
patent: 3677729 (1972-07-01), Plumat

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