Invention Grant
US08323792B2 Spherical corundum particles, based on fused aluminum oxide and a method for producing said particles
有权
基于熔融氧化铝的球形刚玉颗粒和用于制备所述颗粒的方法
- Patent Title: Spherical corundum particles, based on fused aluminum oxide and a method for producing said particles
- Patent Title (中): 基于熔融氧化铝的球形刚玉颗粒和用于制备所述颗粒的方法
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Application No.: US11992267Application Date: 2006-09-13
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Publication No.: US08323792B2Publication Date: 2012-12-04
- Inventor: Jean-André Alary , Sebastian Sachse
- Applicant: Jean-André Alary , Sebastian Sachse
- Applicant Address: AT Villach
- Assignee: Center for Abrasives and Refractories Research & Development C.A.R.R.D. GmbH
- Current Assignee: Center for Abrasives and Refractories Research & Development C.A.R.R.D. GmbH
- Current Assignee Address: AT Villach
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: DE102005045180 20050921
- International Application: PCT/EP2006/008918 WO 20060913
- International Announcement: WO2007/033787 WO 20070329
- Main IPC: B32B5/16
- IPC: B32B5/16
Abstract:
A method is provided for manufacturing spherical corundum grains having a bulk density between 1.5 kg/L and 2.5 kg/L, with aluminum oxide being melted in an electric arc furnace with the addition of 0.1 to 1% quartz sand, the melt being poured in a pouring quantity of less than 100 kg/min, and the pouring stream being blown using compressed air at a pressure between 3 to 10 bar.
Public/Granted literature
- US20090162656A1 Spherical Corundum Particles, Based on Fused Aluminum Oxide and a Method for Said Particles Public/Granted day:2009-06-25
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