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Equipment for welding thermoplastic films has a frame and a heater a lower welding shoe is located immediately beneath an upper one this lower shoe is fixed to the frame or to the upper shoe to form a welding unit which is only supported by the films during welding, thus producing a good weld even w...

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Bibliographic Details
Main Author W NEIDHART
Format Patent
LanguageSwedish
Published 06.10.1980
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:Equipment for welding thermoplastic films has a frame and a heater a lower welding shoe is located immediately beneath an upper one this lower shoe is fixed to the frame or to the upper shoe to form a welding unit which is only supported by the films during welding, thus producing a good weld even with a poor backing material. Suitable for jointing e.g. thick film sheets for covering buildings at site, can be used on any background material such as sand or rough concrete.
Bibliography:Application Number: SE19770000638