专利名称: | Floated ceramic-convertible flat glass and method of manufacture |
公开(告)号: | |
公开(公告)日: | 2007-02-07 00:00:00 |
申请(专利)号: | GB20060011186(GB2428673) |
申请日: | 2006-06-07 00:00:00 |
发明(设计)人: | SCHOTT AG (DE) |
(申请)专利权(人): | LAUTENSCHLAEGER GERHARD (DE) |
内容: | A method is described of production of a flat glass which can be transformed into glass ceramic, in which a largely crystal-defect-free glass can be produced, in that the glass strip is cooled from the temperature (TKGmax) at which the glass has the highest rate of crystal growth (KGmax) to the temperature of the lower devitrification point (TUEG) at which crystal growth ceases, at a cooling rate of KR = cooling rate [ C-min<->ü], KGmax = maximum crystal growth rate [ m-min<->ü]. The flat glass has a thickness of below equilibrium thickness, a net width of at least 1 m and has, within the net width, not more than 50 crystals with a size of more than 50 m per kg of glass, especially none with a size of more than 10 m. |
发布日期:2007-08-22 15:41:00