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:
Jul. 02, 2024
Filed:
Apr. 22, 2020
Danieli & C. Officine Meccaniche S.p.a., Buttrio, IT;
DANIELI & C. OFFICINE MECCANICHE S.P.A., Buttrio, IT;
Abstract
The invention concerns a continuous pickling plant () for the treatment of metal products () in the form of a strip or tube which includes a plurality of acid solution process tanks () each divided into a plurality of turbulence cells () and a recirculation system of the acid solution. The plant also includes, upstream of the plurality of process tanks (), a device for heating () the metal product (), namely an induction heating () system and/or a tunnel with water sprays (). A solution with only two pickling tanks () is also presented. Devices are described () to increase turbulence in the tanks and to accelerate pickling, e.g. by adding fresh acid () in the first tank. The invention also concerns a related pickling process. The invention optimizes the effect of the acid and reduces the residence time of the strip () in the plant.