EP 1498502 A4 20071003 - VERTICAL MUFFLE TYPE HEAT TREATING FURNACE

Title (en)

VERTICAL MUFFLE TYPE HEAT TREATING FURNACE

Title (de)

VERTIKALER WÄRMEBEHANDLUNGSOFEN VOM MUFFELTYP

Title (fr)

FOUR DE TRAITEMENT THERMIQUE DU TYPE A MOUFLE VERTICAL

Publication

EP 1498502 A4 20071003 (EN)

Application

EP 03707025 A 20030224

Priority

JP 0301996 W 20030224
JP 2002120037 A 20020423

Abstract (en)

[origin: EP1498502A1] In a vertical muffle-type heat treating furnace including: a vertically disposed muffle allowing metal strips to be led therein from an upper side to a lower side thereof; a heating zone for heating, from the outside of the muffle, the metal strips passed through the muffle; and a cooling zone disposed at place downstream from the muffle with respect to a moving direction of the metal strips and serving to cool the heated metal strips, the muffle has its upper end fixed to place whereas an extendable muffle elongation adjusting zone is provided which maintains a space between a lower end of the muffle and the cooling zone in a sealed state. <IMAGE>

IPC 1-7

C21D 9/56; C21D 1/00; F27B 5/04; F27B 5/10

IPC 8 full level

C21D 1/00 (2006.01); C21D 9/00 (2006.01); C21D 9/56 (2006.01); F27B 5/04 (2006.01); F27B 5/10 (2006.01); F27B 9/08 (2006.01); F27D 1/12 (2006.01); F27D 7/06 (2006.01); F27D 99/00 (2010.01); C21D 9/573 (2006.01); C21D 9/66 (2006.01); F27B 9/14 (2006.01); F27B 9/28 (2006.01)

CPC (source: EP KR)

C21D 1/00 (2013.01 - KR); C21D 9/0043 (2013.01 - EP); C21D 9/56 (2013.01 - KR); C21D 9/565 (2013.01 - EP); F27B 5/04 (2013.01 - KR); F27B 5/10 (2013.01 - KR); F27B 9/084 (2013.01 - EP); F27D 99/0073 (2013.01 - EP); C21D 9/573 (2013.01 - EP); C21D 9/66 (2013.01 - EP); F27B 9/142 (2013.01 - EP); F27B 9/28 (2013.01 - EP)

Citation (search report)

[X] JP H04225780 A 19920814 - DAIDO STEEL CO LTD
[A] FR 1344841 A 19631129 - DEMAG AG
[A] GB 120114 A 19181031 - WELLMAN SEAVER & HEAD LTD [GB], et al
[A] JP H06207783 A 19940726 - DAIDO STEEL CO LTD
See references of WO 03091462A1

Designated contracting state (EPC)

ES FI GB IT SE

DOCDB simple family (publication)

EP 1498502 A1 20050119; EP 1498502 A4 20071003; CN 1643169 A 20050720; JP 2003313613 A 20031106; KR 20040101241 A 20041202; WO 03091462 A1 20031106

DOCDB simple family (application)

EP 03707025 A 20030224; CN 03807179 A 20030224; JP 0301996 W 20030224; JP 2002120037 A 20020423; KR 20047013172 A 20030224