Method for producing alumina and alumina-zirconia abrasive material
Patent 4059417 Issued on November 22, 1977. Estimated Expiration Date: 
November 22, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 22, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3607162 3662058 InventorsAssigneeApplicationNo. 05/694993 filed on 06/10/1976US Classes:51/309, Metal or metal oxide264/298, By casting on a liquid surface264/332, Fusing or melting inorganic material51/307WITH INORGANIC MATERIALExaminersPrimary: Arnold, Donald J.Attorney, Agent or FirmForeign Application Priority Data1974-05-29 OEAbstractAbrasive granules are produced from alumina or an alumina-zirconia mixture by melting the oxide material and rapidly cooling the melt. To control the solidification velocity, the melt is cast into a molten chloride of Na, Ca, Ba, Mg or mixtures thereof to cool the oxide material melt, the chloride is separated from the cooled and solidified oxide material, and thereafter abrasive granules are produced from the solidified oxide material. | |
