METAL FOIL TUBE AND METHOD AND APPARATUS FOR PRODUCTION THEREOF

摘要

A metal foil tube, characterized in that it has been prepared though the welding or solid-joining of a metal foil raw sheet (W) having a sheet thickness (t) of 10 to 100 mum; a method for manufacturing the metal foil tube, which comprises shaping the metal foil raw sheet (W) so as to form a superimposed portion (G), welding the opposed sides, and finishing the welded part smoothly; and an apparatus for practicing the method. The method allows a foil to be shaped with certainty into the form of a tube even in the case of an extremely thin foil.