发明名称 |
Cordierite, alumina, silica porous ceramic bodies coated with an activated alumina layer |
摘要 |
A ceramic porous body useful as a filtering material for molten metal is disclosed. The ceramic porous body, consisting essentially of cordierite, alumina and silica, is formed by covering surfaces of cell strands of a ceramic porous body skeleton having a bulk specific gravity of 0.25-0.55 with 3-40% by weight per the weight of the skeleton of an activated alumina layer and has an average diameter of interconnected voids of 0.3-5.0 mm, a pressure loss of 0.3-30.0 mm as a water-gauge pressure when passing air through the body of 1 cm thick at a rate of 1 m/sec., a microsurface area of not less than 10 m2/g and a porosity of 75-95%.
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申请公布号 |
US4258099(A) |
申请公布日期 |
1981.03.24 |
申请号 |
US19790087183 |
申请日期 |
1979.10.22 |
申请人 |
BRIDGESTONE TIRE COMPANY LIMITED |
发明人 |
NARUMIYA, TSUNEAKI |
分类号 |
C04B38/00;B01D39/20;C04B38/06;C04B41/85;C22B9/02;F23J15/00;(IPC1-7):B32B5/18;B32B3/26 |
主分类号 |
C04B38/00 |
代理机构 |
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代理人 |
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主权项 |
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