PREVENTION OF OVERGROWTH ON SUBMERGED NOZZLES DURING CASTING OF STEEL DEOXIDIZED BY ALUMINUM

被引：4

作者：

Vdovin, K. N. ^{[1
]}

Rusakov, A. V. ^{[1
]}

Lisichkina, K. A. ^{[2
]}

机构：

[1] Nosov Magnitogorsk State Tech Univ, Magnitogorsk, Russia

[2] Magnitogorsk Met Combine, Magnitogorsk, Russia

来源：

METALLURGIST | 2008年 / 52卷 / 5-6期

关键词：

Reaction Layer; Nonmetallic Inclusion; Liquid Steel; Bulk Deposit; Submerged Entry Nozzle;

D O I：

10.1007/s11015-008-9056-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An initial reaction layer forms on the submerged entry nozzles; this layer is followed by bulk deposits that primarily contain endogenous alumina and steel inclusions. It would therefore be of some interest to prevent the formation of this initial layer opposite the refractory wall of the submerged nozzle. The presence of carbon and SiO2 on the surface of the nozzle facilitates formation of a loose layer of alumina deposits. Refractories with various coatings were tested in contact with nonmetallic inclusions, liquid steel, and synthetic slag. It was found that a coating of pure alumina or ZrO2 reduces overgrowth on the submerged nozzles and shows high chemical resistance to liquid steel.

引用

页码：343 / 345

页数：3

共 16 条

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