Global Patent Index - EP 3228724 B1

EP 3228724 B1 20220810 - TOOL STEEL, IN PARTICULAR HOT-WORK STEEL, AND STEEL OBJECT

Title (en)

TOOL STEEL, IN PARTICULAR HOT-WORK STEEL, AND STEEL OBJECT

Title (de)

WERKZEUGSTAHL, INSBESONDERE WARMARBEITSSTAHL, UND STAHLGEGENSTAND

Title (fr)

ACIER À OUTIL, EN PARTICULIER POUR TRAVAIL À CHAUD ET OBJET EN ACIER

Publication

EP 3228724 B1 20220810 (DE)

Application

EP 17151574 A 20070608

Priority

  • EP 06118672 A 20060809
  • EP 07764595 A 20070608
  • EP 2007005091 W 20070608

Abstract (en)

[origin: EP1887096A1] Procedure for adjusting the thermal conductivity of a steel, preferably a hot-work steel comprises metallurgically producing an internal structure of the steel, whose: carbide components exhibit a defined electron and phonon density, and/or crystal structure exhibits a mean free-path length for the phonon and electron flux that is defined by selectively produced lattice defects. Independent claims are included for: (1) a tool steel, preferably hot-work steel comprising carbon (0.26-0.55 wt.%), chromium (less than 2 wt.%), molybdenum (0-10 wt.%) and tungsten (0-15 wt.%), where the total content of tungsten and molybdenum is 1.8-15 wt.%, carbide-forming elements (0-3 wt.%) comprising titanium, zirconium, hafnium, niobium and/or tantalum, vanadium (0-4 wt.%), cobalt (0-6 wt.%), silicon (0-1.6 wt.%), manganese (0-2 wt.%), nickel (0-2.99 wt.%) and sulfur (0-1 wt.%), and the remaining of iron and unavoidable impurities; and (2) a steel object partially comprising a tool steel, preferably a hot-work steel.

IPC 8 full level

C22C 38/22 (2006.01)

CPC (source: EP KR US)

C21D 8/005 (2013.01 - KR); C22C 33/006 (2013.01 - KR); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - KR); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/30 (2013.01 - EP US); C22C 38/34 (2013.01 - EP US); C22C 38/38 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/52 (2013.01 - EP US); C22C 38/58 (2013.01 - EP US)

Citation (opposition)

Opponent : Rovalma, S.A.

  • ANONYMOUS: "Increased productivity - New options to high thermal conductivity?", UDDEHOLM - WHITE PAPER, 1 January 2021 (2021-01-01), XP093136372, Retrieved from the Internet <URL:https://www.uddeholm.com/app/uploads/sites/10/2021/05/uddeholm_white-paper_increased-productivity-new-options-to-high-thermal-conductivity.pdf> [retrieved on 20240229]
  • ANONYMOUS: "UDDEHOLM PLASTIC PRODUCT POSITIONING / UDDEHOLM THERMAL CONDUCTIVITY", UDDEHOLM, 1 January 2022 (2022-01-01), XP093136377, Retrieved from the Internet <URL:https://www.uddeholm.com/app/uploads/sites/54/2022/09/Uddeholm-Plastic-Positioning-Thermal-Conductivity-DS_Rev_2-U-DS012.pdf> [retrieved on 20240229]
  • S. GELDER, G. JESNER: "New high performance hot work tool steel with improved physical properties", DEVELOPING THE WORLD OF TOOLING : PROCEEDINGS OF THE 9TH INTERNATIONAL TOOLING CONFERENCE, TOOL 2012 ; [9TH ITC] ; MONTANUNIVERSITÄT LEOBEN, 11 - 14 SEPTEMBER 2012, GUTENBERGHAUS; MONTANUNIVERSITÄT LEOBEN, 11 September 2012 (2012-09-11) - 14 September 2012 (2012-09-14), pages 199 - 206, XP009552419, ISBN: 978-3-901384-52-3
  • "Uddeholm's new seel grade; Uddeholm Vancron 40 – winner of the EPMA Award of Merit", ANTI-CORROSION: METHODS AND MATERIALS, LONDON, GB, vol. 55, no. 1, 11 January 2008 (2008-01-11), GB , pages 42 - 43, XP009552833, ISSN: 0003-5599, DOI: 10.1108/acmm.2008.12855aad.011

Opponent : Uddeholm AB,

  • US 3600160 A 19710817 - SIMCOE CHARLES R, et al
  • SE 364999 B 19740311 - BOFORS AB
  • SE 364998 B 19740311 - BOFORS AB
  • US 2565264 A 19510821 - PETER PAYSON
  • EP 2236639 A1 20101006 - ROVALMA SA [ES], et al
  • WO 2010112319 A1 20101007 - ROVALMA SA [ES], et al
  • WO 2013167628 A1 20131114 - VALLS BESITZ GMBH [DE]
  • EP 3119918 B1 20230215 - INNOMAQ 21 SL [ES]
  • KWON, H.: "Secondary hardening embrittlement in 4Mo-0.3c steel", SCRIPTA METALLURGICA., ELSEVIER SCIENCE LTD., KIDLINGTON., GB, vol. 23, no. 6, 1 June 1989 (1989-06-01), GB , pages 1001 - 1004, XP024140611, ISSN: 0036-9748, DOI: 10.1016/0036-9748(89)90285-8
  • SIMCOE, C.R. ET AL.: "Secondary hardening in a Mo-W-V Steel", TRANS . ASM, vol. 58, 1965, pages 378 - 390, XP009188275
  • SIMCOE, C.R. ET AL.: "Relationship between Microstuctures and Mechanical properties on tempering a Mo-W-V alloy steel", TRANS. ASM, vol. 61, 1968, pages 834 - 842, XP009188274
  • SHTANSKY D.V. ET AL.: "Phase transformation in Fe-Mo-C and Fe-W-C steels - I", ACTA MATERIALIA, vol. 45, no. 7, 1997, pages 2861 - 2878, XP085036792, DOI: 10.1016/S1359-6454(96)00375-8
  • LEE, K.B. ; KWON, H.: "Fracture behavior of secondary hardening steels", SCRIPTA METALLURGICA ET MATERIALIA, PERGAMON PRESS, GB, vol. 27, no. 10, 15 November 1992 (1992-11-15), GB , pages 1355 - 1360, XP024180067, ISSN: 0956-716X, DOI: 10.1016/0956-716X(92)90083-Q

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

HR

DOCDB simple family (publication)

EP 1887096 A1 20080213; AU 2007283164 A1 20080214; AU 2007283164 B2 20120216; BR PI0716490 A2 20150310; CA 2659849 A1 20080214; CA 2659849 C 20171121; CA 2981388 A1 20080214; CA 2981388 C 20200211; CN 101512034 A 20090819; CN 102888563 A 20130123; CN 102888563 B 20160330; EP 2052095 A1 20090429; EP 3228724 A1 20171011; EP 3228724 B1 20220810; ES 2929658 T3 20221130; JP 2010500471 A 20100107; JP 2014111835 A 20140619; JP 2015221941 A 20151210; JP 2016128609 A 20160714; JP 2016156088 A 20160901; JP 5518475 B2 20140611; KR 101659704 B1 20160926; KR 20090038030 A 20090417; KR 20150080642 A 20150709; KR 20160047582 A 20160502; MX 2009001483 A 20090515; PL 3228724 T3 20221219; PT 3228724 T 20221110; RU 2009108335 A 20100920; RU 2469120 C2 20121210; US 2010189592 A1 20100729; US 2014023551 A1 20140123; US 2017268084 A1 20170921; US 8557056 B2 20131015; US 9689061 B2 20170627; WO 2008017341 A1 20080214; ZA 200900495 B 20091125

DOCDB simple family (application)

EP 06118672 A 20060809; AU 2007283164 A 20070608; BR PI0716490 A 20070608; CA 2659849 A 20070608; CA 2981388 A 20070608; CN 200780032677 A 20070608; CN 201210317360 A 20070608; EP 07764595 A 20070608; EP 17151574 A 20070608; EP 2007005091 W 20070608; ES 17151574 T 20070608; JP 2009523159 A 20070608; JP 2013268301 A 20131226; JP 2015124483 A 20150622; JP 2016002101 A 20160107; JP 2016002102 A 20160107; KR 20097004460 A 20090303; KR 20157016617 A 20070608; KR 20167009181 A 20070608; MX 2009001483 A 20070608; PL 17151574 T 20070608; PT 17151574 T 20070608; RU 2009108335 A 20070608; US 201314037538 A 20130926; US 201715614142 A 20170605; US 37686607 A 20070608; ZA 200900495 A 20090122