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1. (WO2016055230) METHOD FOR PRODUCING HARDENED STEEL COMPONENTS

Pub. No.:    WO/2016/055230    International Application No.:    PCT/EP2015/070788
Publication Date: Fri Apr 15 01:59:59 CEST 2016 International Filing Date: Sat Sep 12 01:59:59 CEST 2015
IPC: C21D 1/673
C21D 11/00
B21D 37/16
B21D 22/02
Applicants: VOESTALPINE METAL FORMING GMBH
SCHULER PRESSEN GMBH
Inventors: KOLNBERGER, Siegfried
TILL, Edwin
SCHWINGHAMMER, Harald
KURZ, Thomas
HÄGELE, Tobias
KELSCH, Reiner
DEUSCHLE, Werner
SOMMER, Andreas
Title: METHOD FOR PRODUCING HARDENED STEEL COMPONENTS
Abstract:
The invention relates to a method for producing a hardened steel sheet, in particular a steel sheet coated with a metal anticorrosive layer, wherein the steel sheet is first heated to an austenitizing temperature and the austenite conversion is at least partially performed and then the steel sheet is pre-cooled to a temperature that lies above the temperature of the conversion of the austenite into other phases and then is transferred into a press hardening tool and, in the press hardening tool, is shaped and quenched for the purpose of hardening, wherein the pre-cooling is performed in a separate tool, wherein the gap between the tool halves (2, 3) in the closed state is higher than the blank to be cooled.