Global Patent Index - EP 0347699 A1

EP 0347699 A1 19891227 - Process and device for making a homogeneous austenitic structure.

Title (en)

Process and device for making a homogeneous austenitic structure.

Title (de)

Verfahren und Vorrichtung zum Einstellen eines homogenen austenitischen Gefüges.

Title (fr)

Procédés et dispositifs pour obtenir une structure d'austénite homogène.

Publication

EP 0347699 A1 19891227 (FR)

Application

EP 89110580 A 19890612

Priority

FR 8808425 A 19880621

Abstract (en)

Process and device (100) for heat-treating at least one carbon steel wire (1) so as to obtain a homogeneous austenite structure, characterised in that the wire (1) is heated in a tube (2) containing a gas (4) virtually free from forced ventilation, the gas (4) being directly in contact with the wire (1), the time for heating the wire (1) being less than 4 seconds per millimetre of diameter of the wire (1). Pearlitising installation (300) using such a process and such a device. <??>Steel wires obtained according to this process, this device or this installation. <IMAGE>

IPC 1-7

C21D 9/56; C21D 9/64

IPC 8 full level

C21D 9/52 (2006.01); C21D 1/74 (2006.01); C21D 9/56 (2006.01); C21D 9/64 (2006.01)

CPC (source: EP KR US)

C21D 9/561 (2013.01 - EP US); C21D 9/63 (2013.01 - KR); C21D 9/64 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

EP 0347699 A1 19891227; EP 0347699 B1 19931124; AT E97698 T1 19931215; AU 3662289 A 19900104; AU 627463 B2 19920827; BR 8903004 A 19900206; CA 1333250 C 19941129; CN 1018931 B 19921104; CN 1039062 A 19900124; DE 68910887 D1 19940105; DE 68910887 T2 19940317; ES 2046373 T3 19940201; FR 2632973 A1 19891222; FR 2632973 B1 19930115; IE 65167 B1 19951004; IE 892007 L 19891221; JP 2885831 B2 19990426; JP H0243325 A 19900213; KR 0128253 B1 19980416; KR 900000486 A 19900130; OA 09079 A 19911031; US 5032191 A 19910716; ZA 894706 B 19900228

DOCDB simple family (application)

EP 89110580 A 19890612; AT 89110580 T 19890612; AU 3662289 A 19890620; BR 8903004 A 19890621; CA 603470 A 19890621; CN 89104204 A 19890620; DE 68910887 T 19890612; ES 89110580 T 19890612; FR 8808425 A 19880621; IE 200789 A 19890621; JP 15939389 A 19890621; KR 890008535 A 19890621; OA 59598 A 19890621; US 36592889 A 19890612; ZA 894706 A 19890621