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:
Aug. 14, 2018
Filed:
Jul. 13, 2013
Applicant:
Instytut Wysokich Cisnien Polskiej Akademii Nauk, Warsaw, PL;
Inventors:
Waclaw Pachla, Warsaw, PL;
Mariusz Kulczyk, Warsaw, PL;
Jacek Skiba, Radom, PL;
Konrad Wojciechowski, Celestynów, PL;
Assignee:
INSTYTUT WYSOKICH CISNIEN POLSKIEJ AKADEMII NAUK, Warszawa, PL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/18 (2006.01); C22C 38/40 (2006.01); C21D 7/02 (2006.01); C21D 7/10 (2006.01); B21C 23/00 (2006.01); B21C 37/04 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/44 (2006.01); C22C 38/42 (2006.01); C22C 38/50 (2006.01); C22C 38/58 (2006.01); C21D 6/00 (2006.01);
U.S. Cl.
CPC ...
B21C 37/045 (2013.01); B21C 23/002 (2013.01); B21C 23/007 (2013.01); C21D 7/10 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/50 (2013.01); C22C 38/58 (2013.01); C21D 6/004 (2013.01);
Abstract
Rods with the transverse cross-section surface area of at least 150 mmand tensile strength UTS above 1200 Mpa is produced using a plastic deformation that consisted of one-pass hydrostatic extrusion of the billetmade of austenitic steel, with the initial temperature of the billet being below 100° C. The reduction R of the transverse cross-section surface area of the biller (), which takes place during the extrusion, is at least 2.