Patents Assigned to Societa' Italiana Tubi Acciaio Inossidabile (S.I.T.A.I.) S.p.A.
  • Patent number: 6729381
    Abstract: A process for the production of industrial tubes or section bars from metal, such as copper, copper alloys, special brasses, cupronickel or aluminum bronzes, includes the following steps: melting the metal material with possible compatible working scraps; obtaining a preform from a casting; roll milling and/or drawing the preform to reduce its section; drawing with one or more concatenated intervention the roll-milled and/or drawn preform, in order to further reduce its section to the size desired; straightening and possibly submitting to thermal and/or decreasing treatment the dimensionally finished product; and cutting the finished product to measure.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: May 4, 2004
    Assignee: Societa' Italiana Tubi Acciaio Inossidabile (S.I.T.A.I.) S.p.A.
    Inventor: Carlo Colombo