Global Patent Index - EP 0767242 A4

EP 0767242 A4 19970917 - SINTERED STEEL MANUFACTURING PROCESS

Title (en)

SINTERED STEEL MANUFACTURING PROCESS

Title (de)

HERSTELLUNGSVERFAHREN FÜR GESINTERTEN STAHL

Title (fr)

PROCEDE DE FABRICATION D'ACIER FRITTE

Publication

EP 0767242 A4 19970917 (EN)

Application

EP 95923548 A 19950629

Priority

  • JP 9501301 W 19950629
  • JP 16860994 A 19940629

Abstract (en)

[origin: WO9600800A1] A process for manufacturing a high-quality sintered steel characterized by providing a microwave generator between a raw material charge unit in a Dwight-Lloyd sintering machine and an ignition furnace therein, (1) heating a superficial portion of a raw material to 120-600 DEG C with a microwave alone, or (2) heating a superficial portion of a raw material to 50-200 DEG C with a microwave, and then to 150-600 DEG C by sucking hot blast, or (3) heating a superficial portion of a raw material to 150-600 DEG C by using a microwave and hot blast at once, and then drying/heating/sintering the superficial portion of the material to a high temperature speedily in a short period of time without causing the pseudo particles in the superficial portion of the sintered material to be broken.

IPC 1-7

C22B 1/20; F27B 21/08

IPC 8 full level

C22B 1/16 (2006.01); C22B 1/20 (2006.01); F27B 21/06 (2006.01); F27B 21/08 (2006.01); F27D 99/00 (2010.01)

CPC (source: EP)

C22B 1/20 (2013.01); C22B 1/205 (2013.01); F27B 21/06 (2013.01); F27D 2099/0028 (2013.01)

Citation (search report)

  • [A] EP 0500252 A1 19920826 - ONTARIO HYDRO [CA]
  • [E] PATENT ABSTRACTS OF JAPAN vol. 095, no. 011 26 December 1995 (1995-12-26)
  • [PX] PATENT ABSTRACTS OF JAPAN vol. 095, no. 005 30 June 1995 (1995-06-30)
  • See references of WO 9600800A1

Designated contracting state (EPC)

DE FR IT NL

DOCDB simple family (publication)

WO 9600800 A1 19960111; AU 2806895 A 19960125; AU 685959 B2 19980129; BR 9508167 A 19970812; CN 1048758 C 20000126; CN 1154147 A 19970709; DE 69512520 D1 19991104; DE 69512520 T2 20000504; EP 0767242 A1 19970409; EP 0767242 A4 19970917; EP 0767242 B1 19990929; JP H0814763 A 19960119; KR 100217892 B1 19990901

DOCDB simple family (application)

JP 9501301 W 19950629; AU 2806895 A 19950629; BR 9508167 A 19950629; CN 95194317 A 19950629; DE 69512520 T 19950629; EP 95923548 A 19950629; JP 16860994 A 19940629; KR 19960707481 A 19961227