B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 11/00 (2006.01) B21B 23/00 (2006.01) B21C 37/06 (2006.01) B22D 11/128 (2006.01) B21B 1/08 (2006.01) B21B 1/16 (2006.01) B21B 3/00 (2006.01) B21B 15/00 (2006.01)
Patent
CA 2400767
A process for the production of industrial tubes or section bars from metal, such as copper, copper alloys, special brasses, cupronickel or aluminum bronzes, comprises the following steps: melting the metal material with possible compatible working scraps; obtaining a preform from a casting; roll milling and/or drawing said preform to reduce its section; drawing with one or more concatenated intervention said roll-milled and/or drawn preform, in order to further reduce its section up to the size desired; straightening and possibly submitting to thermal and/or degreasing treatment the dimensionally finished product, and cutting the finished product to measure.
L'invention concerne un procédé de production de tubes industriels ou de barres de section à partir de métal tel que du cuivre, des alliages de cuivre, des laitons spéciaux au cupronickel ou des bronzes d'aluminium, consistant à fondre le matériau métallique avec de possibles chutes compatibles, à obtenir une préforme à partir d'un moule, à laminer et ou à étirer cette préforme afin de réduire sa section, à étirer avec une ou plusieurs opérations enchaînées la préforme laminée et/ou étirée afin de réduire encore sa section jusqu'à la dimension recherchée, à dresser le produit obtenu et éventuellement à le soumettre à un traitement thermique et/ou de dégraissage, et à le couper aux bonnes dimensions.
Marks & Clerk
S.i.t.a.i. S.p.a. Societa' Italiana Tubi Acciaio Inossidabile
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