发明授权
- 专利标题： Molten metal pouring nozzle
- 专利标题（中）： 熔金属浇注嘴
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申请号： US112809申请日： 1987-10-23
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公开(公告)号： US4756452A公开(公告)日： 1988-07-12
- 发明人: Noboru Tsukamoto , Masaru Terao , Hiroyasu Uiji
- 申请人： Noboru Tsukamoto , Masaru Terao , Hiroyasu Uiji
- 申请人地址： JPX Tokyo
- 专利权人： Shinagawa Refractories Co., Ltd.
- 当前专利权人： Shinagawa Refractories Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX61-174620[U] 19861113; JPX62-92355[U] 19870616
- 主分类号： B22D41/58
- IPC分类号： B22D41/58 ; B22D37/00
摘要：
Disclosed herein is a porous nozzle which is made up of an upper porous brick, a dense brick, and a lower porous brick arranged vertically in layer and a casing surrounding them. The casing is provided with an inert gas supply pipe which leads to the peripheral space of the upper porous brick. The casing is also provided with another inert gas supply pipe which leads to the peripheral space of the lower porous brick.Disclosed also herein is another porous nozzle which is made up of an upper porous brick, a dense brick, and a lower porous brick arranged vertically in layer and a casing surrounding them. The casing is provided with an inert gas supply pipe which leads to the peripheral space of the lower porous brick which communicates with the peripheral space of the upper porous brick.
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