发明名称 |
Method for preparing molded articles of high-purity alumina fibers. |
摘要 |
<p>Molded articles of high-purity alumina fibers, which are porous materials in which heat resistance is high, and in particular, deformation and linear shrinkage in heat cycles at a temperature more than 1700 DEG C are small, can be obtained by a method comprising the steps of spinning a spinning solution containing an alumina fiber precursor as the main component to obtain precursor fibers, prefiring these precursor fibers at 400 to 1000 DEG C to form prefired fibers, and then molding and calcining these prefired fibers. Sintering between the fibers can be achieved at a relatively low temperature, and in particular, even when no inorganic binder component is added, the molded articles of high-purity alumina fibers can be obtained by a simple process.</p> |
申请公布号 |
EP0511661(A1) |
申请公布日期 |
1992.11.04 |
申请号 |
EP19920107323 |
申请日期 |
1992.04.29 |
申请人 |
MITSUI MINING COMPANY, LIMITED |
发明人 |
SAITOU, YOSHIAKI;DATE, SHIGEYUKI;NONAKA, SHINPEI;SHINBO, TAKASHI;NAKAMURA, HIROSHI |
分类号 |
C04B35/622;C04B35/80;D01F9/08;D01F9/10 |
主分类号 |
C04B35/622 |
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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