Insulating glass developments
To keep pace with the latest requirements in spacer requirements, Lisec has completely redesigned the BSV-B45NK bending machine.
In addition, a new generation of ARL-B45F filling systems has been designed to facilitate precise monitoring of target/actual desiccant quantity.
A new function of the bending machine is the integration of zero-radius corner (ZRC) technology. In addition to the familiar bent corners, spacers can now also be processed with this technology. Lisec has brought to serial maturity a newly patented process that allows tension-free, material-displacement manufacturing of 90º corners. The highlight of the ZRC technology, which Lisec has developed specially for fibre-reinforced spacers, is the self-stiffening corner; it produces a dimensionally stable and perfectly formed 90° angle. A further advantage of this technology is the maximised butyl application area in the corner.
Lisec said it is setting a new standard with the ARL-B45F filling system. With this new generation of filling system, the design and the existing operational processes of the multi-functional device (drilling, filling and sealing process with butyl) have been improved. The result is a reproducible and controllable filling process with shorter cycles. The target/actual quantity of desiccant filling is displayed to the operator on the screen and saved in a database at the same time.
Another highlight is the newly designed granulate flow process. With the help of flow-channel analysis interacting variables such as pressure, flow quantity and flow speed can now be optimised for the cross section of the profile. The sensor-controlled monitoring of the required desiccant quantity enables a minor deviation between the actual to target quantity while the geometric data of the profile can now be entered into the system via an input screen on the display as well as via sensor-based spacer detection system. Sebastian Payrleitner, product architect for insulating glass, said: “Profiles with a traceable actual quantity of desiccant are a quality feature for insulating glass. If the actual quantity deviates from the target quantity in the profile, or if an already heavily saturated desiccant is used, the prevailing humidity in the chamber cannot be fully removed without leaving some residue. This phenomenon can be seen by as misting on the interior side of the glass in the insulating chamber.”