Manufacturing method of steel drums

The method comprises of uncoiling a steel strip (1), and manufacturing from a continuos process a spirally welded tube (6) with a diameter equal to the diameter of the drum to be manufactured. The pitch angle is set in dependency of the width of the steel strip. This is done under tension of an adju...

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Bibliographische Detailangaben
Hauptverfasser:	FRIEDRICH WILHELMUS THOOLEN, JOHANNES DE LANGE, JOHANNES VERMEIJ
Format:	Patent
Sprache:	dut ; eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	The method comprises of uncoiling a steel strip (1), and manufacturing from a continuos process a spirally welded tube (6) with a diameter equal to the diameter of the drum to be manufactured. The pitch angle is set in dependency of the width of the steel strip. This is done under tension of an adjustable bending rolls (2,3) with driven bending rolls (4, 5), and the pitch is adjusted using a turntable. The method then cuts of from the spirally welled tube pieces with a length equal to the body length of the drum to be manufactured. The drum is them provided with lids on both of it's ends The coils may have a varying width and the can be processed without slitting by setting the pitch angle in dependency of each new width.