发明申请
- 专利标题： Gas cooling type vacuum heat treating furnace and cooling gas direction switching device therefor
- 专利标题（中）： 气体冷却式真空热处理炉及其冷却气体方向切换装置
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申请号： US10562498申请日： 2004-03-31
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公开(公告)号： US20070122761A1公开(公告)日： 2007-05-31
- 发明人: Kazuhiko Katsumata
- 申请人： Kazuhiko Katsumata
- 申请人地址： JP Tokyo 100-8182
- 专利权人： Ishikawajima-Harima Heavy Industries Co.,Ltd.
- 当前专利权人： Ishikawajima-Harima Heavy Industries Co.,Ltd.
- 当前专利权人地址： JP Tokyo 100-8182
- 优先权： JP2003-183968 20030627; JP2003-273411 20030711
- 国际申请： PCT/JP04/04643 WO 20040331
- 主分类号： F27D15/02
- IPC分类号： F27D15/02
摘要：
A gas cooling type vacuum heat-treating furnace according to the present invention, includes a gas cooling furnace comprising a cooling chamber in which an article to be heat-treated is stationarily set, and defining therein a gas passage in a vertical direction, a gas cooling and circulating device for cooling and circulating gas flowing in the cooling chamber, a gas direction switching device for alternately changing over directions of gas vertically passing through the cooling chamber, and upper and lower straighteners blocking upper and lower ends of the cooling chamber, for causing a velocity distribution of the gas to be uniform.