| 摘要 |
PROBLEM TO BE SOLVED: To provide a flame thermal spraying material for repairing a kiln which allows the effective utilization of resources without classifying and removing fine particles and a process for producing the same. SOLUTION: This flame thermal spraying material for repairing the kiln consists of powder particles of a thermal spraying raw material which contains inorg matter capable of contg. water of crystallization at 0.5 to 4.5wt.% in outer percentage and is bonded by the inorg. matter. The content of these grains of <=45μm in grain size is <25wt.%. The inorg. matter to be added is the crystal water salt of sodium hydrogenphosphate, the crystal water salt of sodium phosphate and the crystal water salt of sodium silicate. At the time of producing the flame thermal spraying material for the kiln, the thermal spraying raw material and the inorg. matter contg. the water of crystallization are first mixed at room temp. and are then mixed under heating to the tap. above the tap. at which the inorg. matter dehydrates the water of crystallization. Further, the mixture is dried to evaporate the dehydrated moisture, by which the thermal spraying material is produced. |
