Plastics welding

A method of plastics welding particularly suited to thermoplastics such as polypropylene comprises the application of direct heat to the surfaces to be welded while pressing the surfaces together under a pressure of between 1 and 10N, relieving the pressure to remove the heating device (10) and reap...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BONFIGLIO, GUIDO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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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Beschreibung
Zusammenfassung:	A method of plastics welding particularly suited to thermoplastics such as polypropylene comprises the application of direct heat to the surfaces to be welded while pressing the surfaces together under a pressure of between 1 and 10N, relieving the pressure to remove the heating device (10) and reapplying the pressure to weld the surfaces (6, 8) to be joined. The surfaces may be heated to the softening point by direct contact with a pre-heated plate (10) or by the use of a hot air or gas blower.