Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1989-02-03
1990-04-10
Woodard, Joye L.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65163, 65273, 65290, 65291, C03B 23023
Patent
active
049157221
ABSTRACT:
A process for bending a glass sheet, in particular one for motor vehicles, with curved areas having small radii of curvature. The bending device used is a bending press having a male type mold and a female type mold. The female type mold consists of at least two mold parts hinged together. After part of the glass sheet heated to bending temperature has been received by the bending press, at least one swivelling mold part of the female type mold is swivelled around the swivel axis, against the male type mold. An adjustable electric motor serves as the drive motor to move the swivelling mold parts. The angular velocity of the swivel action of the swivelling mold parts during the bending process is adjusted as a function of the temperature of the glass sheet and the desired degree of deformation.
REFERENCES:
patent: 4661141 (1987-04-01), Nitschke et al.
D'Iribarne Benoit
Havenith Hubert
Kuster Hans-Werner
Nowoczyn Hans-Werner
Radermacher Herbert
Saint-Gobain Vitrage
Woodard Joye L.
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