作者：EIJI MOTOKI;

作者单位：

刊名：Journal of the Technical Association of Refractories

ISSN：0285-0028

出版年：2010-01-05

卷：30

期：4

起页：234

止页：242

分类号：TQ175

语种：英文

关键词：

内容简介

There is an idiomatic phrase in Japan, "the person who is a master of materials surely gains a mastery of technique." So, the author feels confident to say, "the person who is a master of raw materials can surely gain a mastery of refractory materials." It is no exaggeration to say that the fundamental factor that determines the functions and qualities of refractories, which support all industrial production of iron, steel, cement, glass, non-ferrous metals, chemicals, petroleum, petrochemicals, energy, and waste treatment, is the quality of raw materials. The manufacturing process of refractory bricks involves four unit processes, namely, (1)the combination and mixing of raw materials, (2)the pressing/shaping of green bodies, (3)the heat treatment (drying, firing, etc.) and (4)inspection/testing/packaging. The quality of refractory bricks is affected by each of the manufacturing steps. Contrary to bricks, the manufacturing process for monolithics, which account for about 68 % of the total annual quantity of refractory production, only involves the combination and mixing of raw materials, and testing/packaging of the finished product. The author believes that the functions and qualities of monolithics are more dependent on raw materials than bricks. Furthermore, monolithics are installed and heated at the work site of the user, so the installation corresponds to "(2) the fabrication of green bodies" and the heating is "(3) the heat treatment." Needless to say, the quality of monolithics is controlled by these two steps, which happen at the work site, after shipment from manufacturer, so the installation and treatment of monolithics at the work site of the user is very important.