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:
May. 28, 2013
Filed:
Jun. 22, 2012
Dong-eun Kim, Chungcheongnam-do, KR;
Jin-sung Park, Chungcheongnam-do, KR;
Hee-joong Im, Gyeonggi-do, KR;
Man-been Moon, Gyeonggi-do, KR;
Hyun-woon OH, Seoul, KR;
Dong-Eun Kim, Chungcheongnam-do, KR;
Jin-Sung Park, Chungcheongnam-do, KR;
Hee-Joong Im, Gyeonggi-do, KR;
Man-Been Moon, Gyeonggi-do, KR;
Hyun-Woon Oh, Seoul, KR;
Hyundai Hysco, Ulsan, KR;
Abstract
The present disclosure relates to a dual phase steel sheet and a method of manufacturing the same. The steel sheet comprises C: 0.05˜0.10% wt %, Si: 0.03˜0.50 wt %, Mn: 1.50˜2.00 wt %, P: greater than 0 wt %˜0.03 wt %, S: greater than 0 wt %˜0.003 wt %, Al: 0.03˜0.50 wt %, Cr: 0.1˜0.2 wt %, Mo: 0.1˜0.20 wt %, Nb: 0.02˜0.04 wt %, B: greater than 0 wt %˜0.005 wt %, N: greater than 0 wt %˜0.01 wt %, and the balance of Fe and other unavoidable impurities. To impart excellent formability, bake hardenability, dent resistance, high Ri value and plating characteristics to the steel sheet for exterior and interior panels of automobiles, the steel sheet is processed to have a dual phase structure through cold rolling, annealing, and hot-dip galvanizing.