Global Patent Index - EP 2497840 B1

EP 2497840 B1 20170503 - Oven system for partially heating steel blanks

Title (en)

Oven system for partially heating steel blanks

Title (de)

Ofensystem zum partiellen Erwärmen von Stahlblechteilen

Title (fr)

Système de four pour le réchauffage partiel d'ébauches métalliques

Publication

EP 2497840 B1 20170503 (DE)

Application

EP 11157721 A 20110310

Priority

EP 11157721 A 20110310

Abstract (en)

[origin: EP2497840A1] Oven system (1) for partial heating of steel sheet component (5) to a temperature above an upper transformation temperature (a) at which structure completes change from ferrite and pearlite to austenite temperature, comprises production oven (10) for heating steel sheet component to a temperature close to, but below the (a) temperature. The oven system further comprises a profiling oven (40). The profiling oven comprises plane through its upper part (41) and lower part, and receptacle for product-specific intermediate. The product-specific intermediate is incorporated in the receptacle. Oven system (1) for partial heating of steel sheet component (5) to a temperature above an upper transformation temperature (a) at which structure completes change from ferrite and pearlite to austenite temperature, comprises a production oven (10) for heating the steel sheet component to a temperature close to, but below the (a) temperature. The oven system further comprises a profiling oven (40). The profiling oven comprises at least one plane through its upper part (41) and a lower part, and a receptacle for a product-specific intermediate. The product-specific intermediate is incorporated in the receptacle. The product-specific intermediate flange is designed to impart a predetermined temperature profile with temperatures above (a) for the regions to be cured and below (a) for softer regions of the component. An independent claim is also included for partial heating of the steel sheet component to the temperature above the (a) temperature, comprising (i) heating the component in the production oven near to its (a) temperature, (ii) positioning the heated component using a positioning system, (iii) introducing the component positioned in a defined position, into the profiling oven, (iv) applying a temperature profile on the component in the profiling oven, to a temperature above the (a) temperature, by heating the selected regions, and other regions are maintained at a temperature below the (a) temperature, and (v) discharging the component provided with a temperature profile, from the profiling oven.

IPC 8 full level

C21D 1/673 (2006.01); C21D 9/00 (2006.01)

CPC (source: EP KR US)

C21D 1/34 (2013.01 - EP US); C21D 1/673 (2013.01 - EP KR US); C21D 9/00 (2013.01 - KR); C21D 9/0006 (2013.01 - EP US); C21D 9/0062 (2013.01 - EP US); C21D 9/0068 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US); C21D 2221/00 (2013.01 - EP US)

Citation (opposition)

Opponent : Benteler Automobiltechnik GmbH

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)

EP 2497840 A1 20120912; EP 2497840 B1 20170503; EP 2497840 B2 20200226; BR 112013023132 A2 20161213; CN 103534364 A 20140122; CN 103534364 B 20160601; ES 2635765 T3 20171004; ES 2635765 T5 20200928; HU E035766 T2 20180528; JP 2014513206 A 20140529; KR 20140044797 A 20140415; PL 2497840 T3 20171031; PL 2497840 T5 20200727; PT 2497840 T 20170808; US 10287650 B2 20190514; US 2014083572 A1 20140327; US 2017037489 A1 20170209; US 9493856 B2 20161115; WO 2012120123 A1 20120913

DOCDB simple family (application)

EP 11157721 A 20110310; BR 112013023132 A 20120309; CN 201280022169 A 20120309; EP 2012054139 W 20120309; ES 11157721 T 20110310; HU E11157721 A 20110310; JP 2013557116 A 20120309; KR 20137026638 A 20120309; PL 11157721 T 20110310; PT 11157721 T 20110310; US 201214003997 A 20120309; US 201615333352 A 20161025