- 瑞士莱丹转型为法人治理模式的公司
- Application Letter: Einflussparameter zur Berechnung von Masken im Maskenschweissverfahren
- Advantages of machining plastic and linoleum floors
- Zusammenarbeit mit SKZ
- Application Letter: „Beschleunigungssensoren in der Optik erhöhen die Prozessgenauigkeit beim Konturschweissen“
- Leister 在日本也扎根了
- Leister 接管 Concord
- VARIMAT V2 the new dimesnion on the roof.
- Contribution to the hot gas extrusion welding of sealing sheets made of flexible polyolefins (FPO/TPO) in tunnel construction
- Application Letter „Camera-based Quality Control for the Welding of Plastics“
- Ergonomisch und robust: Leister präsentiert auf der Fakuma seinen neuen TRIAC BT für den Apparatebau
- Schneller geht’s nicht!
- Leister LHS air heaters have been crowned with the Gold Medal at the TAROPAK 2008 in Poland.
- Leister Lasersystems celebrating 10th anniversary
- Laserschweissen transparenter Kunststofffolien
- Olympic Games with Swiss Representative
- Leister löst das Raumproblem
- LEISTER Process Technologies erwirbt in Kägiswil ein neues Firmengebäude
- Leister acquires Infrared Gas Sensor Company IR Microsystems SA
- Hot Air Deflashing Systems Trim Residue and Time
- Abblasen, Trocknen und Schrumpfen mit Heissluft
- Automatisiertes Entgraten von Kunststoffteilen mit Heissluft
- Eine heisse Partnerschaft
- Laserdurchstrahlschweißen von Thermoplasten mittels Farbauftrag
- Leister Process Technologies: More than just hot air – the new LHS air heater family
- Leister Process Technologies: Do not only be called air
- A class of its own: Hand extruders from Leister
- Process variety in the plastic welding engineering with laser beam
- The new LHS air heater of Leister
- The MISTRAL hot air blower
- Leister booth at the K 2004 show in Düsseldorf
- Varimat - the new automatic welding machine for all roofing membranes
- The modern method of floor welding
- Globo Welding: Plastics welding using a laser beam in three-dimensional joining space
- Welding PEN – the new Leister- hot air
- U series from Leister with a new locomotive
- Tunnel construction - TriacDrive overlap welding machine
- Laser soldering systems for selective processes
- New Leister automatic hot-air welding machines for tarpaulins and coated fabrics
- Welding waterproof sheeting
Feb 4, 2010
Dipl.-Ing. Leopold Glück, Sachverständigenbüro LEGL, Martinsheim; Dipl.-Ing. Udo Dengel, Süddeutsches Kunststoff-Zentrum (SKZ), Würzburg; Dipl.-Ing. (FH) Bruno von Wyl, Leister Process Technologies, Kägiswil, SchweizSummary
Until now, tunnel sheets made of flexible polyolefins (FPO/TPO) in tunnel construction have been joined with each other exclusively with the aid of hot gas welding machines and devices. Within the framework of the elaboration of the DVS 2225-5 technical code, the applicability of extrusion welding was checked, amongst other ways, in a workshop with the collaboration of device manufacturers, sealing sheet manufacturers, test institutes, experts and executing specialist businesses. The extensive welding tests have shown that, in principle, hot gas extrusion welding is suitable for the joining of sealing sheets made of flexible polyolefins. Although the welding tests were not preceded by any comprehensive optimisation measures, weld qualities appropriate for the applications and the requirements were obtained nearly without exception.
Hot gas extrusion welding can thus be applied not only in workshop conditions but also in building site conditions in the tunnel.
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