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    • 2. 发明申请
    • METHODS FOR SEPARATING A SHEET OF BRITTLE MATERIAL
    • 分离稀土材料的方法
    • WO2012075097A1
    • 2012-06-07
    • PCT/US2011/062565
    • 2011-11-30
    • CORNING INCORPORATEDGLAESEMANN, Gregory ScottLI, Xinghua
    • GLAESEMANN, Gregory ScottLI, Xinghua
    • C03B33/09
    • C03B33/091C03B33/093
    • Methods for separating a sheet of brittle material include the step of providing a sheet of brittle material, such as a glass sheet, with a strain point and a melting point. The method further includes the step of providing a first heating irradiation to a first radiation zone on an outer surface of the sheet, wherein a radiated portion of the outer surface of the sheet is heated to a temperature above the strain point and below the melting point. The method further includes the steps of cooling the radiated portion to create residual stress within the cooled radiated portion, contacting the cooled radiated portion of the sheet such that the residual stress facilitates formation of an initial crack open to the outer surface of the sheet, and propagating the initial crack.
    • 用于分离脆性材料片的方法包括提供具有应变点和熔点的诸如玻璃片的脆性材料片的步骤。 该方法还包括对片材的外表面上的第一辐射区域进行第一加热照射的步骤,其中片材的外表面的辐射部分被加热到高于应变点并低于熔点 。 该方法还包括以下步骤:冷却辐射部分以在冷却的辐射部分内产生残余应力,使片材的冷却辐射部分接触,使得残余应力有助于形成对片材的外表面开放的初始裂纹;以及 传播初始裂纹。