HIGH DURABILITY HEAT INSULATOR AND MANUFACTURING METHOD FOR THE SAME AS WELL AS ITS APPLICATION AND METHOD FOR EXECUTING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a refractory heat insulator having excellent heat resistance, slag resistance, iron meltability resistance, wear resistance and mechanical impact resistance. SOLUTION: A high durability heat insulator comprises a flamesprayed film of refractory ceramics provided on a surface of a mineral heat insulation fiber via a coating film of a surface hardening material.