Global Patent Index - EP 0065678 B1

EP 0065678 B1 19870527 - PROCESS AND APPARATUS FOR HEAT TREATING SECTIONS OF FERROUS WORKPIECES

Title (en)

PROCESS AND APPARATUS FOR HEAT TREATING SECTIONS OF FERROUS WORKPIECES

Publication

EP 0065678 B1 19870527 (DE)

Application

EP 82103913 A 19820506

Priority

CH 331281 A 19810521

Abstract (en)

[origin: EP0065678A1] 1. Process for the partial heat treatment of components made from cast iron materials with spheroidal graphite and a pearlitic basic structure, in which the parts to undergo heat treatment are austenitized by inductive heating in a temperature range 850 to 1000 degrees C and are subsequently left in a quenching medium maintained in a temperature range 180 to 450 degrees C until converted into a bainitic structure.

IPC 1-7

C21D 1/20; C21D 5/00

IPC 8 full level

C21D 1/19 (2006.01); C21D 1/20 (2006.01); C21D 1/63 (2006.01); C21D 5/00 (2006.01)

CPC (source: EP)

C21D 1/20 (2013.01); C21D 1/63 (2013.01); C21D 5/00 (2013.01)

Citation (examination)

  • DIN 17014, März 1975
  • DE-B-D 10676/VIa/18c

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0065678 A1 19821201; EP 0065678 B1 19870527; AT E27465 T1 19870615; BR 8202893 A 19830503; CA 1200741 A 19860218; CH 653706 A5 19860115; DE 3276438 D1 19870702; JP S57194208 A 19821129

DOCDB simple family (application)

EP 82103913 A 19820506; AT 82103913 T 19820506; BR 8202893 A 19820519; CA 403373 A 19820520; CH 331281 A 19810521; DE 3276438 T 19820506; JP 7926782 A 19820513