METHOD OF MANUFACTURING TUBULAR MATERIAL

PROBLEM TO BE SOLVED: To provide a method of manufacturing a tubular material while preventing both end parts from being broken, cracked, damaged or the like, at a low cost, even when it is wound on a plurality of rollers including a driving roller and turned and conveyed for a long period of time.S...

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Bibliographische Detailangaben
Hauptverfasser: SUMIYA TADAAKI, UJIHARA JUNJI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method of manufacturing a tubular material while preventing both end parts from being broken, cracked, damaged or the like, at a low cost, even when it is wound on a plurality of rollers including a driving roller and turned and conveyed for a long period of time.SOLUTION: In the method of manufacturing a tubular material, a resin layer forming coating liquid is discharged from a relatively moving nozzle and applied to the peripheral surface of a rotating columnar core metal to form a resin layer forming coating film, and after curing the resin layer forming coating film to form a resin layer, the core metal is drawn out to manufacture the tubular material. A reinforced part is formed using the resin layer forming coating liquid on both end parts of the resin layer in the width direction.