发明申请
- 专利标题: Thermal edge finishing
- 专利标题(中): 热边缘整理
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申请号: US12070585申请日: 2008-02-20
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公开(公告)号: US20080202167A1公开(公告)日: 2008-08-28
- 发明人: Nicholas Dominic Cavallaro , Zung-Sing Chang , Gautam Narendra Kudva , Toshihiko Ono , Ljerka Ukrainczyk , Sam Samer Zoubi
- 申请人: Nicholas Dominic Cavallaro , Zung-Sing Chang , Gautam Narendra Kudva , Toshihiko Ono , Ljerka Ukrainczyk , Sam Samer Zoubi
- 主分类号: C03B25/02
- IPC分类号: C03B25/02 ; C03B33/03 ; B23K26/073 ; B23K26/40
摘要:
A thermal edge finishing process includes preheating at least one cut edge of a glass sheet, laser finishing the edge to a single full continuous radius from a position orthogonal to the edge and in-plane with the glass sheet while continuing to heat the glass, and localized annealing of the edge to reduce residual stress from the laser/thermal treatment of the edge. By the present process, edge stress is reduced considerably, such as to less than 3000 psi, and more preferably to less than 2500 psi, and to as low as 1000 psi in the first 1 mm along the treated edge.
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