| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase adhesive strength between a siliceous stone brick used in a carbonization chamber of a coke oven and a repair material, and to enhance the service life. <P>SOLUTION: A thermal spraying material contains refractory particles formed of unfired siliceous stone or silica sand, metal particles formed of metallic silicon, and a crystallization accelerator formed of one or more kinds of a sodium salt, potassium salt, and lithium salt. Preferable refractory particles have such a particle size that the content of particles having particle diameters of ≥600 μm is ≤10 wt%, the content of particles having particle diameters of 425-2,000 μm is 30-60 wt%, the content of particles having particle diameters of ≤75 μm is ≤10 wt%, and the remainder has particle diameters of 75-425 μm. The metallic silicon particles are added in an amount of 10-30 wt%, and have such a particle size that the content of particles having particle diameters of ≥150 μm is ≤10 wt%, the content of particles having particle diameters of 20-300 μm is 5-50 wt%, the content of particles having particle diameters of ≤2 μm is 10-40 wt%, and the remainder has particle diameters of 2-20 μm. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
