Abstract
In the upper register (about 1350℃) in "Fluidized-bed gastification melting furnace" that melted and processed home refuse of the municipality, the. erosive environment was severe, and thermo-couple (SUS316) for the combustion temperature measurement was the unavailability on about seven days. Then, the improvement of about five times or more durability was able to be confirmed by coating it by "Heatproof and oxidation-proof coating material (fireproof courting material)" that was a new technology through the proving test. Afterwards, the practical application was made, and continues to use today. By this change cost savings of thermocouple has led in Nagareyama City, Chiba Prefecture..