C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 23/09 (2006.01) C03B 23/055 (2006.01)
Patent
CA 2179827
In a device for shaping glass tubes (32), the shaping tools (3, 4) which are designed as shaping rollers, are mounted on a rotary table (2) that encloses the glass tube (32) and that rotates at a speed that is several times higher than the speed of rotation of the glass tube (32). The shaping tools (3, 4) are moved in a perpendicular direction to the longitudinal axis (40) of the glass tube (32) in order to shape it. The relatively high speed of rotation of the rotary table (2) allows the advance of the shaping tools per rotation of the rotary table (2) and at the same time the forces that act on the softened part of the glass tube (32) to be kept small.
Dans un dispositif de formage de tuyaux en verre (32), les outils de formage (3, 4), qui sont constitués de rouleaux de formage, sont montés sur un plateau tournant (2) qui renferme le tuyau en verre (22) et qui tourne à une vitesse plusieurs fois supérieure à la vitesse de rotation du tuyau en verre (32). Un mouvement de formage perpendiculaire à l'axe longitudinal (40) du tuyau en verre (32) est imprimé aux outils de formage (3, 4). La vitesse de rotation relativement élevée du tableau tournant (2) permet de ne pas faire avancer trop vite les outils de formage par rotation du plateau tournant (2) et de maintenir les forces qui s'exercent sur la partie ramollie du tuyau en verre (22) à un niveau réduit.
Dichter Hans-Joachim
Fetherstonhaugh & Co.
LandOfFree
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