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Title:
VERTICAL MUFFLE TYPE HEAT TREATING FURNACE
Document Type and Number:
WIPO Patent Application WO/2003/091462
Kind Code:
A1
Abstract:
A vertical muffle type heat treating furnace, comprising a vertically disposed muffle allowing metal strips to be led therein from an upper side to a lower side, a heating zone for heating, from the outside of the muffle, the metal strips passing through the inside of the muffle, a cooling zone for cooling the metal strips on the downstream side of the muffle in the moving direction of the metal strips, and an extendable muffle extension adjusting zone for fixing the upper end side of the muffle and bringing an area between the lower end part of the muffle and the cooling zone in sealed state.

Inventors:
Nagata, Masato c/o CHUGAI RO CO. LTD. (2-4-7, Kyomachibori, Nishi-k, Osaka-shi Osaka, 550-0003, JP)
Application Number:
PCT/JP2003/001996
Publication Date:
November 06, 2003
Filing Date:
February 24, 2003
Export Citation:
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Assignee:
CHUGAI RO CO., LTD. (2-4-7, Kyomachibori Nishi-k, Osaka-shi Osaka, 550-0003, JP)
International Classes:
C21D1/00; C21D9/00; C21D9/56; F27B5/04; F27B5/10; F27B9/08; F27D1/12; F27D7/06; F27D99/00; C21D9/573; C21D9/66; F27B9/14; F27B9/28; (IPC1-7): C21D9/56; C21D1/00; F27B5/04; F27B5/10
Domestic Patent References:
WO2001092800A1
Foreign References:
JP2000028269A
JPS5856861U
JPH0221757Y2
EP0675208A1
JP2753854B2
JPS63119657U
Other References:
See also references of EP 1498502A1
Attorney, Agent or Firm:
Matsukawa, Katsuaki (MATSUKAWA PATENT OFFICE, Higobashi Park Bldg. 3-3, Kyomachibori, 1-chome, Nishi-k, Osaka-shi Osaka, 550-0003, JP)
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