EP 2719787 B1 20160413 - HOT PRESS MOLDED ARTICLE AND METHOD FOR PRODUCING SAME.
Title (en)
HOT PRESS MOLDED ARTICLE AND METHOD FOR PRODUCING SAME.
Title (de)
HEISSGEPRESSTER FORMARTIKEL UND, HERSTELLUNGSVERFAHREN DAFÜR.
Title (fr)
ARTICLE MOULÉ PAR PRESSAGE À CHAUD ET PROCÉDÉ POUR PRODUIRE CELUI-CI.
Publication
Application
Priority
- JP 2011130636 A 20110610
- JP 2012064850 W 20120608
Abstract (en)
[origin: US2014056753A1] There is provided a hot press-formed product, including a steel sheet formed by a hot press-forming method, and having a metallic structure that contains ferrite at 30% to 80% by area, bainitic ferrite at lower than 30% by area (not including 0% by area), martensite at 30% by area or lower (not including 0% by area), and retained austenite at 3% to 20% by area, whereby balance between strength and elongation can be controlled in a proper range and high ductility can be achieved.
IPC 8 full level
B21D 22/20 (2006.01); C21D 1/18 (2006.01); C21D 9/00 (2006.01); C22C 38/00 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP US)
B21D 22/022 (2013.01 - EP US); B21D 22/22 (2013.01 - EP US); B21D 37/16 (2013.01 - EP US); C21D 1/673 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/08 (2013.01 - US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - EP US); C22C 38/16 (2013.01 - EP US); C22C 38/18 (2013.01 - EP US); C22C 38/20 (2013.01 - US); C22C 38/22 (2013.01 - US); C22C 38/28 (2013.01 - US); C22C 38/32 (2013.01 - US); C21D 2211/002 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
Citation (opposition)
Opponent : SSAB Technology AB
- US 2008308194 A1 20081218 - CORQUILLET JACQUES [FR], et al
- EP 1939308 A1 20080702 - THYSSENKRUPP STEEL AG [DE]
- US 2011036465 A1 20110217 - KAWASAKI YOSHIYASU [JP], et al
- US 2008286603 A1 20081120 - OH JIN-KEUN [KR], et al
- WO 2012048841 A1 20120419 - TATA STEEL IJMUIDEN BV [NL], et al
- WO 2009145563 A2 20091203 - POSCO [KR], et al
- JP 2005126733 A 20050519 - NIPPON STEEL CORP
- JP 2007016296 A 20070125 - NIPPON STEEL CORP
- JP 2007211276 A 20070823 - SUMITOMO METAL IND
- JP 2006183138 A 20060713 - JFE STEEL KK
- EP 2557193 A1 20130213 - JFE STEEL CORP [JP]
- MALEK NADERI: "Hot Stamping of Ultra High Strength Steels", VON DER FAKULTÄT FÜR GEORESSOURCEN UND MATERIALTECHNIK DER RHEINISCH-WESTFÄLISCHEN TECHNISCHEN HOCHSCHULE AACHEN ZUR ERLANGUNG DES AKADEMISCHEN GRADES EINES DOKTORS DER INGENIEURWISSENSCHAFTEN GENEHMIGTE DISSERTATION, 2008, XP055340807
- "20Mn B5 Warmgewalztes Mittelband Datasheet", THYSSENKRUPP, July 2013 (2013-07-01), XP055340812
- "22Mn B5 Warmgewalztes Mittelband Datasheet", THYSSENKRUPP, August 2013 (2013-08-01), XP055340815
- "27Mn B5-2 Warmgewalztes Mittelband Datasheet", THYSSENKRUPP, August 2013 (2013-08-01), XP055340819
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2014056753 A1 20140227; CN 103597106 A 20140219; CN 103597106 B 20160302; EP 2719787 A1 20140416; EP 2719787 A4 20150819; EP 2719787 B1 20160413; ES 2569190 T3 20160509; JP 2013014841 A 20130124; JP 5883350 B2 20160315; WO 2012169639 A1 20121213
DOCDB simple family (application)
US 201214113761 A 20120608; CN 201280027597 A 20120608; EP 12796568 A 20120608; ES 12796568 T 20120608; JP 2012064850 W 20120608; JP 2012131417 A 20120608