| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a reinforced glass board with a marking formed by a raser. <P>SOLUTION: In this manufacturing method of reinforced glass, a glass board for marking is prepared (process S1), the glass board is put on a work table of a raser irradiation unit, and a raser beam is irradiated to form micro-cracks in the glass board (process S2), and the glass is put in a reinforcing furnace, heated and then abruptly cooled (process S3), and by the heating and the abrupt cooling the growth of micro-cracks and the reinforcing of the glass are realized. Marking is formed by an aggregate of the micro-cracks. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
