積層断熱材及びその製造方法

Japanese Patent JP7163330

B2

To provide a laminate heat insulating material excellent in workability and heat insulating properties, and a method for manufacturing the same.SOLUTION: A laminate heat insulating material 10 includes a laminated substance 100 of a first heat insulating material 110 containing inorganic fiber, and a second heat insulating material 120 containing inorganic fiber and having lower heat conductivity at 600°C and higher compressive stress at a compression rate of 25% compared to the first heat insulating material. When a thickness of the first heat insulating material 110 in the laminated direction is A and a thickness of the second heat insulating material 120 in the laminated direction is B, a ratio between A and B satisfies the relationship of 1