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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
Application Number:
PCT/JP2003/001996
Publication Date:
November 06, 2003
Filing Date:
February 24, 2003
Export Citation:
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Assignee:
CHUGAI RO KOGYO KAISHA LTD (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:
WO2001092800A12001-12-06
Foreign References:
JP2000028269A2000-01-28
JPS5856861U1983-04-18
JPH0221757Y21990-06-12
EP0675208A11995-10-04
JP2753854B21998-05-20
JPS63119657U1988-08-02
Other References:
See also references of EP 1498502A4
Attorney, Agent or Firm:
Matsukawa, Katsuaki (Higobashi Park Bldg. 3-3, Kyomachibori, 1-chome, Nishi-k, Osaka-shi Osaka, JP)
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