摘要:
A device and method for bending a glazing unit or plural glazing units positioned one on top of the other, with a first train of carriages, bearing transport supports and running between a loading zone in which at least one glazing unit is deposited on a transport support of a carriage and a transfer zone, a furnace section heating the glazing units to their bending temperature in their path towards the transfer zone, and a second train of carriages running between the transfer zone and a final cooling section with an unloading station, which is equipped with transport supports that differ from the transport supports of the first train of carriages.
摘要:
A device and method for bending a glazing unit or plural glazing units positioned one on top of the other, with a first train of carriages, bearing transport supports and running between a loading zone in which at least one glazing unit is deposited on a transport support of a carriage and a transfer zone, a furnace section heating the glazing units to their bending temperature in their path towards the transfer zone, and a second train of carriages running between the transfer zone and a final cooling section with an unloading station, which is equipped with transport supports that differ from the transport supports of the first train of carriages.
摘要:
The invention relates to a method and device for bending superposed sheets of glass, comprising the sheets being picked up by a top form furnished with suction means creating an upward airflow blowing over the rim of the sheets, said suction being sufficient to lift and hold the superposed sheets against said top form, then the pressing of the sheets between the top form and a full surface solid concave bottom form furnished with openings, said pressing beginning while the suction of the preceding step is not yet finished or is finishing, then the forming of the superposed sheets, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, said forming by suction beginning while the pressing is not yet finished, then the cooling of the sheets. Windshields free of optical defects may thus be produced.
摘要:
A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.
摘要:
A method and device for bending superposed sheets of glass. The sheets are picked up by a top form furnished with a suction creating an upward airflow blowing over the rim of the sheets, the suction being sufficient to lift and hold the superposed sheets against the top form, then the sheets are pressed between the top form and a full surface solid concave bottom form furnished with openings, the pressing beginning conducted while the suction is not yet finished or is finishing, then the superposed sheets are formed, by suction of the main face of the bottom sheet through the openings of the bottom concave mold, the forming by suction beginning while the pressing is not yet finished, and then the sheets are cooled. Windshields free of optical defects may thus be produced.
摘要:
A device for heating objects and a method that has recourse to the device, particularly for heating and/or bending one or more glass panes positioned one on top of the other, covering each other. The device includes a furnace line, plural supports, particularly transport molds that transport and/or bend the objects, the objects being placed on the supports positioned on transport carriages, a drive device that progresses the transport carriages through the furnace line and plural heating elements provided above the objects in the furnace line. In the device the heating elements are positioned on the whole above the entire furnace line and the heating elements can be operated and regulated so as to form heating zones suited to dimensions of the objects.
摘要:
A process and system for bending glass sheets heated to their softening point. The glass sheets are laid on a concave bending frame and prebent by gravity. The prebent glass sheets are transferred to a transfer former with a concave forming surface, the transfer former being moved up through the concave bending frame, the perimeter of which is larger, and thus picking up the glass sheets. The transfer former is positioned so that in vertical projection it overlies a final bending former in the form of a frame with a concave forming surface. The transfer former is moved up through the larger-diameter final bending former, the glass sheets being laid on the final bending former. The glass sheets are bent into their final shape, and at the end of the bending operation, the glass sheets in their final shape are transferred from the final bending former to a transport system and cooled.
摘要:
A device for heating objects and a method that has recourse to the device, particularly for heating and/or bending one or more glass panes positioned one on top of the other, covering each other. The device includes a furnace line, plural supports, particularly transport molds that transport and/or bend the objects, the objects being placed on the supports positioned on transport carriages, a drive device that progresses the transport carriages through the furnace line and plural heating elements provided above the objects in the furnace line. In the device the heating elements are positioned on the whole above the entire furnace line and the heating elements can be operated and regulated so as to form heating zones suited to dimensions of the objects.
摘要:
A process for laminating multi-layer pre-forms into laminated glazing assemblies is provided. The pre-forms are first subjected to a vacuum in an inlet lock. Then, the pre-forms are heated to an assembly or bonding temperature in a heating chamber, while still being subjected to vacuum. Next, the pre-forms are pressed using pressing pieces in a pressing chamber, which is also subjected to vacuum. A greater pressure is exerted along the edges of the laminated glazing assemblies so as to bond the edges, preferably by using membranes. In an outlet lock which follows the pressing chamber, the laminated glazing assemblies are again vented to atmospheric pressure. An apparatus suitable for carrying out the process is also provided. The apparatus has chambers which are connected together by conveyors so as to achieve a quasi-continuous flow of material.
摘要:
The present document describes a process for manufacturing a pane of laminated glass without recourse to an autoclave. The pack of layers are composed of stacked layers (6, 7, 8), is raised to the softening temperature of the thermoplastic interlayer of the pack of layers in a preheat channel (1). The preheated pack of layers is put under vacuum in a vacuum assembly station (2) for the purpose of extracting the gas from the spaces separating the layers (6, 7, 8). After the gas has been extracted, the edge of the pack of layers, which is held under vacuum, is mechanically compressed inside the vacuum box and is thus sealed. Finally, the pack of layers is brought to atmospheric pressure and its temperature further increased in a postheat channel (4).