本邦鉄鋼用耐火物の進歩

概要

論文の詳細を見る
Marked advances have been made in refractories for iron and steel industry during the last decade. A brief paper cannot cover all refractories developments in detail, but ten examples of the outstanding develpoments and trends are discussed as follows : 1. One of the most important recent developments in refractories for open hearth furnaces is the increased use of basic bricks. The unburned chemically bonded chrome-magnesia bricks with a steel cover or shield are used widely for front walls, back walls and end walls as a substitute for the silica brick. New roof constructions such as Zebra (black and white) or basic shoulder are also discussed. 2. Development of super-duty silica bricks which are low alumina, low alkali and low porosity, are discussed. 3. Improvements in steel pouring refractories (low porosity or bloating ladles, sleeves, and carbon stoppers) are discussed. 4. Use of fireclay bricks instead of silica bricks for checker works is increasing. 5. Carbon lining for blast furnaces. 6. Developments of manufacturing machinery results in more accurate dimensions and shapes than those in a few years ago. 7. Developments of dolomite refractories. 8. The increasing use of insulating refractories. 9. Use of plastic and castable refractories. 10. Improvment has been made in workability of mortar and cement, and greater control of grain size.
社団法人日本鉄鋼協会の論文
1955-07-01