EP 1651789 B1 20100825 - METHOD FOR PRODUCING HARDENED PARTS FROM SHEET STEEL
Title (en)
METHOD FOR PRODUCING HARDENED PARTS FROM SHEET STEEL
Title (de)
VERFAHREN ZUM HERSTELLEN VON GEHARTETEN BAUTEILEN AUS STAHLBLECH
Title (fr)
PROCEDE DE PRODUCTION D'ELEMENTS CONSTITUTIFS EN TOLE D'ACIER TREMPE
Publication
Application
Priority
- EP 2004006252 W 20040609
- AT 12022003 A 20030729
- AT 12032003 A 20030729
Abstract (en)
[origin: WO2005021820A1] The invention relates to a method for producing a hardened profile part from a hardenable steel alloy having cathodic corrosion protection, whereby: a) a coating is applied to a sheet made of a hardenable steel alloy; b) the coating is essentially comprised of zinc; c) the coating additionally contains one or more oxygen-affine elements in a total amount of 0.1 % by weight to 15 % by weight with regard to the entire coating; d) the coated steel sheet is subsequently roll-profiled in a profiling machine whereby shaping the sheet strip into a roll-shaped profile strand, and; e) the coated steel sheet is then, at least in partial areas and with the admission of atmospheric oxygen, brought to a temperature necessary for hardening and is heated until it undergoes a microstructural change necessary for hardening, whereby f) a superficial skin is formed on the coating from an oxide of the oxygen-affine element(s), and; g) the sheet is cooled after sufficient heating, whereby the cooling rate is calculated in order to achieve a hardening of the sheet alloy. The invention also relates to a corrosion protection layer for the method and a profile part resulting therefrom.
IPC 8 full level
C23C 2/02 (2006.01); B21D 22/04 (2006.01); B21J 5/00 (2006.01); C21D 1/02 (2006.01); C21D 1/673 (2006.01); C23C 2/06 (2006.01); C23C 2/26 (2006.01); C23C 2/40 (2006.01); C25D 5/36 (2006.01); C25D 5/48 (2006.01); C25D 7/06 (2006.01); C21D 9/46 (2006.01)
CPC (source: EP KR US)
B21D 22/04 (2013.01 - KR); B21J 5/00 (2013.01 - KR); C21D 1/673 (2013.01 - EP KR US); C23C 2/0224 (2022.08 - KR); C23C 2/06 (2013.01 - KR); C23C 2/29 (2022.08 - KR); C23C 2/40 (2013.01 - KR); C25D 5/36 (2013.01 - EP KR US); C25D 5/48 (2013.01 - EP KR US); C21D 9/46 (2013.01 - EP US); C21D 2221/00 (2013.01 - EP US); C21D 2251/02 (2013.01 - EP US); Y10T 29/49982 (2015.01 - EP US); Y10T 29/49995 (2015.01 - EP US); Y10T 428/12799 (2015.01 - EP US); Y10T 428/31678 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL HR LT LV MK
DOCDB simple family (publication)
WO 2005021820 A1 20050310; AT E478971 T1 20100915; BR PI0412599 A 20060919; BR PI0412599 B1 20160517; BR PI0412601 A 20060919; BR PI0412601 B1 20130723; CA 2533327 A1 20050310; CA 2533327 C 20090818; CA 2533633 A1 20050310; CA 2533633 C 20090825; CN 104372278 A 20150225; CN 1829816 A 20060906; CN 1829817 A 20060906; CN 1829817 B 20150107; DE 502004011583 D1 20101007; EP 1651789 A1 20060503; EP 1651789 B1 20100825; EP 1658390 A1 20060524; EP 1658390 B1 20140917; EP 1660693 A1 20060531; EP 1660693 B1 20140917; EP 2177641 A1 20100421; EP 2177641 B1 20130424; ES 2350931 T3 20110128; ES 2421182 T3 20130829; ES 2524324 T3 20141205; ES 2525731 T3 20141229; JP 2007500285 A 20070111; JP 2007505211 A 20070308; JP 5054378 B2 20121024; JP 5113385 B2 20130109; KR 100825975 B1 20080428; KR 100834555 B1 20080602; KR 20060033921 A 20060420; KR 20060036111 A 20060427; MX PA06000825 A 20060823; MX PA06000826 A 20060823; PL 1651789 T3 20110331; PL 2177641 T3 20130930; PT 1651789 E 20101105; PT 1660693 E 20150105; US 2007000117 A1 20070104; US 2007256808 A1 20071108; US 2007271978 A1 20071129; US 2011045316 A1 20110224; US 7832242 B2 20101116; US 7938949 B2 20110510; US 8021497 B2 20110920; US 8181331 B2 20120522; WO 2005021821 A1 20050310; WO 2005021822 A1 20050310
DOCDB simple family (application)
EP 2004006250 W 20040609; AT 04739756 T 20040609; BR PI0412599 A 20040609; BR PI0412601 A 20040609; CA 2533327 A 20040609; CA 2533633 A 20040609; CN 200480022172 A 20040609; CN 200480022188 A 20040609; CN 201410444698 A 20040609; DE 502004011583 T 20040609; EP 04736386 A 20040609; EP 04739755 A 20040609; EP 04739756 A 20040609; EP 09015813 A 20040609; EP 2004006251 W 20040609; EP 2004006252 W 20040609; ES 04736386 T 20040609; ES 04739755 T 20040609; ES 04739756 T 20040609; ES 09015813 T 20040609; JP 2006521403 A 20040609; JP 2006521404 A 20040609; KR 20067002210 A 20060131; KR 20067002212 A 20060131; MX PA06000825 A 20040609; MX PA06000826 A 20040609; PL 04739756 T 20040609; PL 09015813 T 20040609; PT 04736386 T 20040609; PT 04739756 T 20040609; US 56605904 A 20040609; US 56606904 A 20040609; US 56621904 A 20040609; US 91710910 A 20101101