DEVICE AND METHOD FOR MELTING A SUBSTANCE WITH THE

专利名称：DEVICE AND METHOD FOR MELTING A

SUBSTANCE WITH THE OCCURRENCE OF ALOW LEVEL OF CONTAMINATION

发明人：LEISTER, MICHAEL,SCHAEFER, ERNST-WALTER,EICHBERG, LEOPOLD,OHMSTEDE,VOLKER

申请号：EP02779342.1申请日：20020912公开号：EP1434741A2公开日：20040707

摘要：The invention relates to an apparatus and a method for low-contaminationmelting of high-purity, aggressive and/or high-melting glass or glass-ceramic. Accordingto the invention, for this purpose a melt is heated in a crucible or melting skull crucibleby means of high-frequency radiation and is mixed or homogenized in the meltingcrucible. It is preferable for a gas nozzle, from which gas bubbles, e.g. oxygen bubbles(known as O2 bubbling), escape into the melt, to be provided at the base of the crucible.This alone makes it possible to achieve surprising multiple benefits in the melting skullcrucible. Firstly, unmelted batch which drops into the melt in solid form, for examplefrom above, is melted down more quickly as a result of more intensive mixing with theliquid fraction of the melt, secondly the temperature distribution in the melt is mademore even, thirdly a uniform distribution or mixing of different glass constituents isachieved, and fourthly the redox state of the glass can be adjusted.

申请人：SCHOTT GLAS,CARL-ZEISS-STIFTUNGTRADING AS SCHOTT GLAS

地址：Hattenbergstrasse 10 55122 Mainz DE,Hattenbergstrasse 10 55122 Mainz DE

国籍：DE,DE

代理机构：Herden, Andreas F.

更多信息请下载全文后查看