公开(公告)号：EP1805111A1

公开(公告)日：2007-07-11

申请号：EP05782721.4

申请日：2005-09-09

申请人： Schott AG

发明人： SCHUMACHER, Carsten ,  VOGL, Armin ,  KLETTE, Frank ,  KUNERT, Christian ,  LANGNER, Bernhard ,  MORSTEIN, Andreas ,  ROTERS, Andreas

IPC分类号： C03B18/14 ,  C03C3/091 ,  C03C3/093

CPC分类号： C03C23/0075 ,  C03B18/14

摘要： The invention relates to a method for reducing surface defects during the production of float glass having a transformation temperature Tg of at least 600 °C. The invention also relates to a method wherein impurities are removed from the surface of the glass band in the floating chamber by molten metal flowing over the glass band. The undesired spreading of the molten metal on the glass band is limited in a contactless manner. The invention also relates to device for carrying out said method, in addition to a floating glass having a transformation temperature of at least 600 °C, which has a maximum of 3 surface defects (top specks) having a size greater than 35 µm pro m2 when it leaves the floating chamber.

公开(公告)号：EP1786736A1

公开(公告)日：2007-05-23

申请号：EP05783940.9

申请日：2005-08-26

申请人： Schott AG

发明人： SCHUMACHER, Carsten ,  VOGL, Armin ,  KLETTE, Frank ,  KUNERT, Christian ,  LANGNER, Bernhard ,  MORSTEIN, Andreas ,  ROTERS, Andreas

IPC分类号： C03B18/14 ,  C03C3/091 ,  C03C3/093 ,  C03B18/18

CPC分类号： C03C23/0075 ,  C03B18/14

摘要： The invention relates to a method for reducing surface defects during production of a float glass with a transformation temperature Tg equal to or greater than 600 °C consisting in removing impurities from the surface of a glass strip in a float chamber by a molten metal flowing over the glass strip in a float bath. A device for carrying out the inventive method and a float glass whose transformation temperature is equal to or greater than 600 °C and which has maximum 3 surface defects (Top Specs) whose size is greater than 35 ηm per m2 at the exit from the float chamber are also disclosed.