THREE-PIECE SQUARE CAN AND METHOD OF MANUFACTURING THE SAME

The present invention provides a three-piece rectangular can which can overcome drawbacks (joint defect) of a can body joint portion of a three-piece can, and is of a new type which overcomes shortage of a can body strength which a two-piece can possesses, and exhibits excellent liquid leakage resis...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGAMI, TAKESHI, SHIRANE, ZENROU, HIROTSU, MUNEMITSU, KANEDA, SHINICHI, ISHII, MASAYUKI, OOHORI, KEI, IWAIDA, MANABU, KATOH, HISASHI, YAMAMOTO, KOICHI, YASUDA, NORIFUMI, TODA, HITOSHI, MORI, SHIGEAKI, OYAMA, SHIGEKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR BASIC ELECTRIC ELEMENTS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING ELECTRICITY HANDLING THIN OR FILAMENTARY MATERIAL MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PUNCHING METAL STORING TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The present invention provides a three-piece rectangular can which can overcome drawbacks (joint defect) of a can body joint portion of a three-piece can, and is of a new type which overcomes shortage of a can body strength which a two-piece can possesses, and exhibits excellent liquid leakage resistance, excellent can body strength and excellent heat radiation property or the like even when the can is used as a casing of a battery or electric equipment. For this end, the three-piece rectangular can of the present invention is formed such that a circular blank formed of an aluminum plate which forms an organic film on at least one surface thereof is formed into a bottomed circular can by deep drawing such that the organic film forms an inner side of the can, a cylindrical sleeve having no seam on a side surface thereof is formed by cutting a can bottom of the bottomed circular can, a rectangular can body portion having no seam on a side surface thereof is formed by deforming the cylindrical sleeve into a rectangular shape, a necking formed portion is formed by applying necking forming to opening portions at both ends of the rectangular can body, and a top lid and a bottom lid are mounted on the opening portions at both ends of the rectangular can body by double seaming by way of an organic compound.