C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 23/033 (2006.01) C03B 23/025 (2006.01) C03B 25/08 (2006.01) C03B 27/044 (2006.01) C03B 35/16 (2006.01) C03B 35/18 (2006.01)
Patent
CA 2688354
The invention relates to a method for bending a glass panel.The glass panel is heated in a heating furnace (1) for bending and tempering and fed in a flat condition from the furnace (1) onto a bending conveyor (4) while the bending conveyor (4) is in a straight configuration. The bending conveyor (4) and the glass panel are arched to a desired curvature while the glass panel travels along the bending conveyor (4). During the arching process, the bending conveyor (4), or at least its upstream end, is arched beyond a desired final curvature of the glass panel, i.e. the bending conveyor (4), or at least its upstream end, is arched with a bending radius (R2) which is smaller than a bending radius (R1) for the desired final curvature of the glass panel. As a result, the end section flatness of the glass panel is eliminated. Finally, the bent glass panel is tempered.
L'invention porte sur une méthode de cintrage d'un panneau de verre. Le panneau de verre est chauffé dans un four (1) de cintrage et recuit puis conduit à l'état plat sur un convoyeur de cintrage (4) en configuration droite, lequel est courbé à la courbure désirable tandis que le panneau de verre transite le long du convoyeur (4). Pendant le processus de contrage le convoyeur (4), ou au moins son extrémité amont, est cintré au-delà de la courbure finale désirée du panneau de verre, c'est-à-dire avec un rayon de courbure (R2) plus petit que le rayon (R1) de courbure de courbure finale désirée du panneau de verre. En conséquence, la forme plate de la section d'extrémité du panneau de verre est éliminée, et finalement, on procède au recuit du panneau cintré.
Harjunen Pete
Kurvinen Jari
Olan Mika
Savijaervi Matti
Tanhuanpaeae Mikko
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Glaston Corporation
Harjunen Pete
Kurvinen Jari
Olan Mika
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