MANUFACTURE OF STEEL TUBE

PROBLEM TO BE SOLVED: To manufacture a steel tube having good straightness by forming a steel sheet into a cylinder, fixing both ends of the cylinder in a state where bending distortion by which a seam side is made convex is imparted to the cylinder and welding the inside surface. SOLUTION: In a met...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ARAKAWA TAKEKAZU, MIYAMARU MASASHI
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PUNCHING METAL SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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