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:
Sep. 01, 1998
Filed:
Feb. 15, 1996
Applicant:
Inventors:
Jovan Starcevic, Vienna, AT;
Erich Mahr, Porkersdorf, AT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F / ;
U.S. Cl.
CPC ...
205705 ; 205712 ; 205714 ; 204206 ; 204207 ; 204208 ;
Abstract
The invention concerns a process for pickling material strips made of steel, in particular stainless steel, where the strip passes through at last one pickling bath with at least one pickling acid. It is above all characterized by the fact that the acid concentration and/or the acid composition is controlled as a function of the material quality, of the pre-treatment and of the operating parameters of the pickling plant. Furthermore, the invention concerns a plant for carrying out the process, where at least two circulation tanks having different acid concentrations and/or acid compositions are provided.