| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a molded, fired product of a refractory material having a surface on which a vitreous layer can be formed, provided that formation of defects such as cracks are inhibited in the vitreous layer. <P>SOLUTION: The molded, fired product is molded from the refractory material essentially comprising graphite and has the vitreous layer formed from a glaze on its surface. The glaze has a melting point of 600°C or higher. The molded, fired product comprises 5-30 pts.vol. aggregate particles per 100 pts.vol. glaze, provided that the aggregate particles are made of a material having a melting point higher than that of the glaze and have a coarse particle size. <P>COPYRIGHT: (C)2012,JPO&INPIT |
