发明授权
US08017058B2 Castable refractory powder composition, premixed material prepared therefrom, method for casting premixed material, and hardened refractory body obtained therefrom
有权
铸造耐火粉末组合物，由其制备的预混合材料，浇注预混材料的方法和由其获得的硬化耐火材料体
- 专利标题： Castable refractory powder composition, premixed material prepared therefrom, method for casting premixed material, and hardened refractory body obtained therefrom
- 专利标题（中）： 铸造耐火粉末组合物，由其制备的预混合材料，浇注预混材料的方法和由其获得的硬化耐火材料体
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申请号： US12240411申请日： 2008-09-29
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公开(公告)号： US08017058B2公开(公告)日： 2011-09-13
- 发明人: Jun Oba , Kunio Tanaka , Nobuyuki Takahashi , Takashi Fujisaki
- 申请人： Jun Oba , Kunio Tanaka , Nobuyuki Takahashi , Takashi Fujisaki
- 申请人地址： JP Fukuoka-Ken
- 专利权人： Taiko Refractories Co., Ltd.
- 当前专利权人： Taiko Refractories Co., Ltd.
- 当前专利权人地址： JP Fukuoka-Ken
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2002-190229 20020628
- 主分类号： B28B3/00
- IPC分类号： B28B3/00
摘要：
A premixed material is obtained by tempering a castable refractory powder composition comprising refractory aggregate, fine refractory powder, alumina cement, a dispersing agent and an alumina cement hydration stopper with water. The hydration stopper is acidic in a state of an aqueous solution. The amount of the hydration stopper is controlled such that the premixed material has a pH of 2 to 7. Immediately after adding and mixing an alumina cement hydration starter to the premixed material, the resultant mixture is cast into a mold. The addition of the hydration starter can be carried out 5 days or more after the production of the premixed material.
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