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Title:
HORIZONTAL HEAT TREATMENT APPARATUS FOR THREAD AND HEAT TREATMENT METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2001194071
Kind Code:
A
Abstract:

To provide a horizontal heat treatment furnace for thread and its heat treatment method in which the uniformity and controllability for temperature distribution in a heat treatment chamber are improved, and the thermal energy is efficiently used.

First sealing chambers 5a, 5b and second sealing chamber 6a, 6b are connectedly provided respectively forward and backward of a heat treatment chamber 2, where a heat treatment gas is circulated in the range of 200-300°C. An exhaust port is provided to the chamber 5a, 5b and 6a, 6b, the exhaust port of the chamber 5a, 5b and a circulation path of the heating gas is connected through an exhaust gas introduction path 18. Exhaust gas from the chamber 5a, 5b is introduced into the circulation path through the path 18 to be circulated and used, and the exhausted gas from the chamber 6a, 6b is directly discharged to the atmosphere. In this case, the pressure of the chamber 5a, 5b is set lower by 0.2-5 Pa than that of the heat treatment chamber 2 and the chambers 6a, 6b, and a gas in the amount approximately equivalent to the outside air flowing in the chamber 5a, 5b from the chamber 6a, 6b is exhausted from an exhaust port 19 of the circulation treatment gas provided in the circulation path.


Inventors:
Inagaki, Hiroshi
Ogawa, Shigeki
Yamamoto, Nobuyuki
Machida, Kazuyuki
Application Number:
JP2000000005733
Publication Date:
July 17, 2001
Filing Date:
January 06, 2000
Export Citation:
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Assignee:
MITSUBISHI RAYON CO LTD
International Classes:
F27B9/12; D01D10/00; D01F9/12; F27B9/02; F27B9/28; F27B9/40; (IPC1-7): F27B9/12; D01D10/00; D01F9/12; F27B9/02; F27B9/28; F27B9/40
Domestic Patent References:
JPS62243831A
JPS62198492U
JPS60152669U
JPH06323736A
JPS5819682A
JPH0614890U
JPS62228866A
JPH07118933A
JP2000136441A
JP2000212839A
JP3004834B2
JP3004833B2
JP3004832B2
JPS62276023A
JPH02259025A
JPH07270072A
JPH10237723A
JPH0327125A
JPH06173123A
JPH0713461U
JPH11173761A
JPS62228865A
JP2010002176A
Attorney, Agent or Firm:
野口 武男