Process for the forming of glass plates and application of the p

Details Process for the forming of glass plates and application of the p Process for the forming of glass plates and application of the p

1997-05-07

2000-04-04

Ludlow, Jan

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65106, 65290, C03B 23025, C03B 2303, C03B 23035

Patent

active

060446625

ABSTRACT:
A method for bending a sheet of glass heated to a bending temperature in a horizontal furnace through which it is conveyed by a plane conveyor delivering the glass sheet to a bending cell heated to substantially the same temperature as the bending temperature. A concave annular recessed portion provides gravity preshaping and then moves the glass sheet vertically towards a solid convex projecting portion within the cell, so that the sheet is squeezed between the concave and convex portions. A device for carrying out the method and its use for producing glazing with a particularly complex shape are are disclosed.

REFERENCES:
patent: 4778507 (1988-10-01), Aruga et al.
patent: 5340375 (1994-08-01), Anttonen
patent: 5372624 (1994-12-01), Lesage

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