EP 0717116 B1 20010613 - Process for producing a work piece of machine construction steel and work piece produced by this process
Title (en)
Process for producing a work piece of machine construction steel and work piece produced by this process
Title (de)
Verfahren zum Herstellen eines Werkstückes aus Maschinenbaustahl und nach diesem Verfahren hergestelltes Werkstück
Title (fr)
Procédé de fabrication d'une pièce en acier de construction mécanique et pièce ainsi fabriquée
Publication
Application
Priority
FR 9414941 A 19941213
Abstract (en)
[origin: EP0717116A1] Micro-alloyed steel consists of (in wt%): 0.05-0.5 C; 1-2 Mn; 0.05-1.55 Si; 0.1-1 Cr; 0-0.5 Mo; 0-0.3 V; 0-0.01 B; 0-0.03 Ti; and 0-0.1Nb. It has a bainitic structure. A blank of the steel is subjected to surface heat treatment by laser beam, induction heating or electron bombardment, followed by quenching. The heat affected zones are heated to 500-900 degrees C and cooled at a rate of above 500 degrees C/hr..
IPC 1-7
IPC 8 full level
C21D 1/00 (2006.01); C21D 1/20 (2006.01); C21D 1/06 (2006.01)
CPC (source: EP US)
C21D 1/00 (2013.01 - EP US); C21D 1/20 (2013.01 - EP US); C21D 1/06 (2013.01 - EP US); C21D 2211/002 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0717116 A1 19960619; EP 0717116 B1 20010613; AT E202151 T1 20010615; BR 9505758 A 19980422; DE 69521276 D1 20010719; DE 69521276 T2 20020110; DK 0717116 T3 20011001; ES 2159614 T3 20011016; FR 2727981 A1 19960614; FR 2727981 B1 19970110; GR 3036386 T3 20011130; MX 9505194 A 19970531; PT 717116 E 20011130; US 5667605 A 19970916
DOCDB simple family (application)
EP 95402754 A 19951207; AT 95402754 T 19951207; BR 9505758 A 19951212; DE 69521276 T 19951207; DK 95402754 T 19951207; ES 95402754 T 19951207; FR 9414941 A 19941213; GR 20010401242 T 20010814; MX 9505194 A 19951211; PT 95402754 T 19951207; US 56934895 A 19951208