ES8104020A1 - Method for necking thin wall metallic containers and drawn container produced by this method. - Google Patents

Method for necking thin wall metallic containers and drawn container produced by this method.

Info

Publication number
ES8104020A1
ES8104020A1 ES492329A ES492329A ES8104020A1 ES 8104020 A1 ES8104020 A1 ES 8104020A1 ES 492329 A ES492329 A ES 492329A ES 492329 A ES492329 A ES 492329A ES 8104020 A1 ES8104020 A1 ES 8104020A1
Authority
ES
Spain
Prior art keywords
necking
thin wall
container produced
reduced diameter
metallic containers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES492329A
Other languages
Spanish (es)
Other versions
ES492329A0 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ball Corp
Original Assignee
Ball Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ball Corp filed Critical Ball Corp
Publication of ES492329A0 publication Critical patent/ES492329A0/en
Publication of ES8104020A1 publication Critical patent/ES8104020A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2615—Edge treatment of cans or tins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2615—Edge treatment of cans or tins
    • B21D51/2638—Necking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/42—Details of metal walls
    • B65D7/48—Local reinforcements, e.g. adjacent closures

Abstract

The present invention relates to methods for reducing the open end of drawn and ironed containers such as beverage cans (20). It is desirable to provide a maximum reduction in diameter of the open end (36) in order to reduce the quantity of material in the lid (24) but previous forming methods have resulted in localized buckling in the reduced diameter portion (32) and/or crumpling of the transition portion. The present invention has solved the localized buckling and crumpling problems by a step wherein both the reduced diameter portion (32) and the transition portion are reformed within controlled limits to provide a new reduced diameter portion and a new curvilinear transition portion. Principal uses include the manufacture of beverage cans.
ES492329A 1979-06-25 1980-06-11 Method for necking thin wall metallic containers and drawn container produced by this method. Expired ES8104020A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5157379A 1979-06-25 1979-06-25
US12041980A 1980-02-12 1980-02-12

Publications (2)

Publication Number Publication Date
ES492329A0 ES492329A0 (en) 1981-04-16
ES8104020A1 true ES8104020A1 (en) 1981-04-16

Family

ID=26729575

Family Applications (1)

Application Number Title Priority Date Filing Date
ES492329A Expired ES8104020A1 (en) 1979-06-25 1980-06-11 Method for necking thin wall metallic containers and drawn container produced by this method.

Country Status (2)

Country Link
EP (1) EP0020926A1 (en)
ES (1) ES8104020A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774839A (en) * 1982-12-27 1988-10-04 American National Can Company Method and apparatus for necking containers
US4527412A (en) * 1983-03-28 1985-07-09 Stoffel Technologies, Inc. Method for making a necked container
US4753364A (en) * 1983-03-28 1988-06-28 Stoffel Technologies Inc. Necked container
AT390745B (en) * 1988-06-29 1990-06-25 Austria Metall MOLDING DEVICE FOR HOLLOW BODIES
US5138858A (en) * 1991-07-01 1992-08-18 Ball Corporation Method for necking a metal container body
NL1000657C2 (en) * 1995-06-26 1996-12-31 Hoogovens Staal Bv Die and method for die-checking a metal hull.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1356821A (en) * 1970-10-22 1974-06-19 Crown Cork & Seal Co Method of and apparatus for deforming open ends of container bodies
US3786957A (en) * 1971-03-22 1974-01-22 Continental Can Co Double stage necking
DE2218396A1 (en) * 1972-04-15 1973-10-25 Krupp Gmbh DEVICE FOR PULLING IN CYLINDRICAL CAN CUSHIONS WITH A SEAM LONG A MANUAL LINE, IN PARTICULAR WITH A SOLDERED FOLD SEAM, IN THE ROTATION PROCESS
US3898828A (en) * 1973-10-01 1975-08-12 American Can Co Die assembly and method for interior roll-necking-in a tubular member
US3995572A (en) * 1974-07-22 1976-12-07 National Steel Corporation Forming small diameter opening for aerosol, screw cap, or crown cap by multistage necking-in of drawn or drawn and ironed container body
US3964413A (en) * 1974-07-22 1976-06-22 National Steel Corporation Methods for necking-in sheet metal can bodies

Also Published As

Publication number Publication date
ES492329A0 (en) 1981-04-16
EP0020926A1 (en) 1981-01-07

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