Structurally Based Assessment of the Influence of Fluorides on the Characteristics of Continuous Casting Powder Slags

被引：25

作者：

Schulz, Tilo ^{[1
]}

Lychatz, Bernd ^{[1
]}

Haustein, Nicole ^{[1
]}

Janke, Dieter ^{[1
]}

机构：

[1] TU Bergakad, Inst Iron & Steel Technol, Freiberg, Germany

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2013年 / 44卷 / 02期

关键词：

BASICITY; VISCOSITIES;

D O I：

10.1007/s11663-013-9796-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The use of fluorides in continuous casting powder leads to the desired reduction of melting temperature to less than 1573 K (1300 A degrees C) as well as to lowering the viscosity below 10 dPas. With an equilateral use of alkalis, the tendency to form volatile fluorine compounds rises. The effect of these components on the structure of the casting slags can be described with the NBO/T-ratio. Should the full effect of fluorides to be used for structural modification of the slags, the other components have to be inhibited by compound formation so as to prevent them from forming gaseous fluoride. If the fluoride content in the continuous casting slag is represented by means of fluorspar, the influence on the NBO/T-ratio can be described with the impact factor 4.0.

引用

页码：317 / 327

页数：11

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