The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2025
Filed:
Jan. 24, 2020
Outokumpu Oyj, Helsinki, FI;
Esa Puukko, Tornio, FI;
Leeni Aula, Keminmaa, FI;
Outokumpu Oyj, Helsinki, FI;
Abstract
The invention relates to a method for manufacturing strips of stainless steel, comprising hot rolling in an initial process (A) and subsequently cold rolling in a cold rolling line (B). The hot rolling is stopped when the strip thickness has been reduced to a thickness between 2.0 mm and 6.5 mm. The subsequent cold rolling is passed at least one time through said cold rolling line, which comprises in the following order: At least one cold rolling mill (-) in the initial part of the line, at least one annealing section (), a scale breaking step (), a shot blasting step () and at least one pickling section () utilizing a mixture of nitric acid HNO, hydrofluoric acid HF and optionally sulphuric acid HSO.