METHOD OF BONDING AT LEAST TWO TYPES OF CERAMIC MATERIALS TO EACH OTHER

摘要

The disclosure describes a method of bonding at least two types of materials, such as, for example, fire clay and alumina, to each other in order to enhance both abrasion and corrosion resistances of fire proof plates for closure valves of foundry ladles. The method is characterized in that a first material is heated to a temperature of from 800 to 1400.degree.C and a second material is heated to a temperature of from 2100 to 6000.degree.C whereupon the second material is applied to said first material while imparting thereto a kinetic energy of from 0.5 x 10 7 to 100 x 10-7 joule.