发明名称 |
FURNACE FOR HEAT TREATMENT OF METAL |
摘要 |
<p>A heating section 20 having heating elements using carbon which generates heat when a high-frequency electric current is fed to a coil whose pitch can be adjusted as desired is arranged in a heating chamber 10. A cooling chamber 80 configured to cool metal to be heat-treated, which has been heated by the heating elements, is disposed below the heating chamber 10 in communication with the heating chamber 10 via a connection section 60. A water-cooled vertically movable shaft 90 which is capable of supporting the metal to be heat-treated and entering the heating chamber 10 is disposed so as to penetrate through the bottom portion of the cooling chamber 80. A gas introducing pipe 81 configured to introduce gas for cooling heated metal to be heat-treated supported by the water-cooled vertically movable shaft 90 and moved from the heating chamber 10 to the cooling chamber 80 is disposed in the cooling chamber 80, so that a heat treatment furnace which is capable of reducing running cost and increasing cooling speed is realized.</p> |
申请公布号 |
EP2442057(A1) |
申请公布日期 |
2012.04.18 |
申请号 |
EP20100786171 |
申请日期 |
2010.06.08 |
申请人 |
NATIONAL INSTITUTE FOR MATERIALS SCIENCE;NISSIN GIKEN CO., LTD |
发明人 |
KOBAYASHI TOSHIHARU;HARADA HIROSHI;TASAKI JUN;SUGITA KAORU;KIKUCHI KATSUNORI |
分类号 |
C22F1/00;C21D1/40;C21D1/62;C21D9/00;C22F1/10;F27B5/02;F27B5/04;F27B5/12;F27B5/14;F27D9/00;F27D15/02;H05B6/10;H05B6/36;H05B6/44 |
主分类号 |
C22F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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