DISCUSSION: PROBLEMS IN THE USE OF TORCH GUNITING FOR REPAIRING THE LINING OF HEATING EQUIPMENT AND PRODUCTION OF BLOCK REFRACTORY PARTS. SELECTION OF COMPOUNDS FOR TORCH GUNITING OF OPEN-HEARTH ROOFS.

被引：0

作者：

Boteva, V.Yu. ^{[1
]}

Petrenko, Yu.M. ^{[1
]}

Murav'ev, V.N. ^{[1
]}

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

机构：

[1] Don Scientifid-Research Inst for, Ferrous Metallurgy, USSR, Don Scientifid-Research Inst for Ferrous Metallurgy, USSR

来源：

Refractories (English translation of Ogneupory) | 1987年 / 28卷 / 5-6期

关键词：

COATINGS - Flame Spraying - FURNACES; METALLURGICAL - Refractory Materials - STEELMAKING - Open Hearth Process;

D O I：

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中图分类号：

学科分类号：

摘要：

Based on the properties of periclase-chromite refractories, which are recommended for open hearth roofs, it is assumed that gunited coatings formed from periclase-chromite compounds would meet the service requirements (high heat resistance and refractoriness, satisfactory porosity, etc. ). In conducting the present investigations charges with weight ratios of periclase and chromite of 100:0, 90:10, 80:20, 70:30, 60:40, 30:70, and 0:100 were prepared and also charges based on scrap of used periclase-chromite roof brick with additions of periclase powder in the following weight ratios: 100:0; 90:10; 80:20; 70:30; 60:40. The life of the coatings was 10 heats in comparison with 4-5 heats for a periclase coating. The results of laboratory and experimental production tests showed the promise of using periclase-chromite compounds for torch guniting of open hearth roofs.

引用

页码：278 / 281