Original document(7 pages)  中文版
    The invention discloses a method for preparing corundum hollow ball, employing brown fused alumina or white alundum or the two substance as main raw material, introducing carbon element or addictive or introducing the two substance and introducing purification to remove SiO2, Fe2O3, TiO2, Na2O, K2O, CaO and MgO, or not introducing carbon element and addictive, smelting in the three-phase alternating current arc furnace or direct current arc furnace, blowing with high pressure air to produce corundum hollow ball, then separating and choosing to get corundum hollow ball of 0.2-5 mm, which is characterized comparing with aluminum oxide hollow ball by lower.
Application Number
申请号		 200510061294 Application Date
申请日		 2005.10.28
Title 名称 Preparation method of corundum hollow ball
Publication Number
公开号		 1789197 Publication Date
公开日		 2006.06.21
Approval Pub. Date Granted Pub. Date
International Classification 分类号 C04B35/10,C04B35/657
Applicant(s) Name
申请人		 Wang Jiabang
Address 地址 310013
Inventor(s) Name 发明人
Attorney & Agent 代理人 lin fuyu

  
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