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Title:
FURNACE FOR HEAT TREATMENT OF METAL
Document Type and Number:
WIPO Patent Application WO/2010/143640
Kind Code:
A1
Abstract:
A furnace for heat treatment of metal comprises a heating section (20) provided within a heating chamber (10), the heating section (20) being provided with a heat generating body which uses carbon and generates heat by conducting a high-frequency electric current to a coil having an adjustable pitch. A cooling chamber (80) for cooling the metal which has been heated by the heat generating body is provided below the heating chamber (10) so as to communicate with the heating chamber (10) through a connection section (60). A water-cooled vertically movable shaft (90) capable of entering the heating chamber (10) while supporting the metal to be heated is provided so as to penetrate through the bottom of the cooling chamber (80). A gas introducing pipe (81) for introducing gas into the cooling chamber (80) is provided in the cooling chamber (80), said gas being used to cool the heated metal having been moved into the cooling chamber (80) from the heating chamber (10) while being supported by the water-cooled vertically movable shaft (90). The configuration reduces the running cost of the furnace and achieves an increased cooling speed.

Inventors:
KOBAYASHI Toshiharu (2-1 Sengen 1-chome, Tsukuba-sh, Ibaraki 47, 〒3050047, JP)
小林 敏治 (〒47 茨城県つくば市千現一丁目2番地1 独立行政法人物質・材料研究機構内 Ibaraki, 〒3050047, JP)
HARADA Hiroshi (2-1 Sengen 1-chome, Tsukuba-sh, Ibaraki 47, 〒3050047, JP)
原田 広史 (〒47 茨城県つくば市千現一丁目2番地1 独立行政法人物質・材料研究機構内 Ibaraki, 〒3050047, JP)
TASAKI Jun (Ltd 384, Hinomae, Sayamagahara, Iruma-sh, Saitama 32, 〒3580032, JP)
Application Number:
JP2010/059723
Publication Date:
December 16, 2010
Filing Date:
June 08, 2010
Export Citation:
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Assignee:
NATIONAL INSTITUTE FOR MATERIALS SCIENCE (2-1 Sengen 1-chome, Tsukuba-shi Ibaraki, 47, 〒3050047, JP)
独立行政法人物質・材料研究機構 (〒47 茨城県つくば市千現一丁目2番地1 Ibaraki, 〒3050047, JP)
Nissin Giken Co., Ltd (384 Hinomae, Sayamagahara Iruma-sh, Saitama 32, 〒3580032, JP)
日新技研株式会社 (〒32 埼玉県入間市狭山ヶ原碑の前384 Saitama, 〒3580032, JP)
KOBAYASHI Toshiharu (2-1 Sengen 1-chome, Tsukuba-sh, Ibaraki 47, 〒3050047, JP)
小林 敏治 (〒47 茨城県つくば市千現一丁目2番地1 独立行政法人物質・材料研究機構内 Ibaraki, 〒3050047, JP)
HARADA Hiroshi (2-1 Sengen 1-chome, Tsukuba-sh, Ibaraki 47, 〒3050047, JP)
International Classes:
F27D9/00; C21D1/00; F27B5/02; F27B5/16; F27D11/06
Attorney, Agent or Firm:
NISHIZAWA Toshio (Kudan-Horie Bldg. 6F, 3-14 Kudan-kita 4-chome, Chiyoda-k, Tokyo 73, 〒1020073, JP)
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