EP 1529122 B1 20120418 - METHOD AND DEVICE FOR PATENTING STEEL WIRES
Title (en)
METHOD AND DEVICE FOR PATENTING STEEL WIRES
Title (de)
VERFAHREN UND VORRICHTUNG ZUM PATENTIEREN VON STAHLDRÄHTEN
Title (fr)
PROCEDE ET DISPOSITIF DE PATENTAGE DE FILS EN ACIER
Publication
Application
Priority
- BE 0300102 W 20030605
- BE 200200372 A 20020606
Abstract (en)
[origin: US7354493B2] Disclosed is a method for patenting at least one steel wire, according to which the temperature is increased at least to a level at which the steel austenitizes, followed by quenching in a liquid medium by directing the wire through at least one curtain of cooling liquid so as to obtain a cooling temperature that lies below the austenitizing temperature, the liquid flowing in a turbulent manner substantially perpendicular to the wire, followed by an isothermal stage during which the wire is maintained at a constant temperature allowing pearlitic transformation. The inventive method is characterized by the fact that additionally, a number of successive curtains can be specifically adjusted so as to obtain the temperature which allows pearlitic transformation and is to be kept constant during the isothermal stage as the cooling temperature through the cooling process in a liquid medium, and the isothermal stage immediately follows the cooling process in a liquid medium.
IPC 8 full level
C21D 1/00 (2006.01); C21D 9/573 (2006.01); C21D 1/667 (2006.01); C21D 9/64 (2006.01)
CPC (source: EP KR US)
C21D 1/667 (2013.01 - EP KR US); C21D 9/573 (2013.01 - KR); C21D 9/5732 (2013.01 - EP US); C21D 9/64 (2013.01 - EP KR 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 PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03104501 A2 20031218; WO 03104501 A3 20040129; AT E554191 T1 20120515; AU 2003232530 A1 20031222; AU 2003232530 A8 20031222; BE 1014868 A3 20040504; CA 2488156 A1 20031218; CA 2488156 C 20110322; CN 100370038 C 20080220; CN 1659292 A 20050824; EP 1529122 A2 20050511; EP 1529122 B1 20120418; JP 2005529235 A 20050929; JP 4851712 B2 20120111; KR 100941675 B1 20100212; KR 20050005529 A 20050113; US 2007107815 A1 20070517; US 7354493 B2 20080408
DOCDB simple family (application)
BE 0300102 W 20030605; AT 03756923 T 20030605; AU 2003232530 A 20030605; BE 200200372 A 20020606; CA 2488156 A 20030605; CN 03813021 A 20030605; EP 03756923 A 20030605; JP 2004511559 A 20030605; KR 20047019694 A 20030605; US 51659503 A 20030605