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A turning bar for altering the feed direction of a flattened plastic tubular film web is provided with a surface consisting of a copper base alloy. This eliminates corrosion problems associated with steel turning bars and results in a favourable coefficient of friction with the web passing over/arou...

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Bibliographische Detailangaben
1. Verfasser:	KORTE HEINRICH
Format:	Patent
Sprache:	ita
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES PACKING PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A turning bar for altering the feed direction of a flattened plastic tubular film web is provided with a surface consisting of a copper base alloy. This eliminates corrosion problems associated with steel turning bars and results in a favourable coefficient of friction with the web passing over/around the surface. The alloy could be brass. The bar may be a coated steel tube with air-supply bores formed in the tube wall.