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Ceramic fiber needled blanket has excellent sound absorption and noise reduction
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Author:佚名
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Published time: 2021-04-14
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Ceramic fiber blanket with near near the thermal conductivity of air, refractory fiber material for repair, is due to the ceramic fiber blanket made of solid fiber and air mix planning, porosity as high as 90% above, many low thermal conductivity of air in the pores, and destroyed the solid-state molecular continuous network planning, and then obtain excellent thermal insulation function. And the smaller the diameter of the pores, along the direction of heat flow by solid fiber cut closed the number of pores, ceramic fiber blanket insulation function is better.
The main factors affecting the thermal conductivity of ceramic fiber blanket include the following aspects: temperature, density, slag ball, fiber diameter, fiber humidity, use atmosphere, fiber direction. Because ceramic fiber blanket has different from traditional firebrick, thermal insulation brick planning, and then the choice of its heat conduction process is also different. The heat transfer in the ceramic fiber blanket is not only the heat conduction of solid fiber, but also the heat conduction of air, the heat transfer of the gas in the open space and the radiation heat transfer between the hole walls.
Understand the principle of thermal conductivity of ceramic fiber blanket and several aspects that affect its thermal conductivity coefficient, then in the process of production, manufacturers can try to avoid these problems, produce higher quality products.
Ceramic fiber needle-punched blanket has been widely used in machinery, metallurgy, chemical industry, petroleum, ceramics, glass, electronics and other industries. Compared with traditional resistant materials such as insulating bricks and castable materials, ceramic fiber can save 10-30% energy. The ceramic fiber needle-punched blanket with ceramic fiber as raw material has the advantages of ceramic fiber, and has its own advantages: ceramic fiber needle-punched blanket has white color, regular size, fire resistance, heat insulation, heat preservation in one. Does not contain any binder. It can maintain good tensile strength, toughness and fiber structure when used in neutral and oxidized atmosphere for a long time. Temperature resistance is 950-1400. Ceramic fiber needle-punched blanket properties: ceramic fiber needle-punched blanket has excellent performance of sound absorption and noise reduction; Excellent thermal stability; Excellent chemical stability; Excellent tensile strength; Low thermal conductivity; Low heat capacity.
The main factors affecting the thermal conductivity of ceramic fiber blanket include the following aspects: temperature, density, slag ball, fiber diameter, fiber humidity, use atmosphere, fiber direction. Because ceramic fiber blanket has different from traditional firebrick, thermal insulation brick planning, and then the choice of its heat conduction process is also different. The heat transfer in the ceramic fiber blanket is not only the heat conduction of solid fiber, but also the heat conduction of air, the heat transfer of the gas in the open space and the radiation heat transfer between the hole walls.
Understand the principle of thermal conductivity of ceramic fiber blanket and several aspects that affect its thermal conductivity coefficient, then in the process of production, manufacturers can try to avoid these problems, produce higher quality products.
Ceramic fiber needle-punched blanket has been widely used in machinery, metallurgy, chemical industry, petroleum, ceramics, glass, electronics and other industries. Compared with traditional resistant materials such as insulating bricks and castable materials, ceramic fiber can save 10-30% energy. The ceramic fiber needle-punched blanket with ceramic fiber as raw material has the advantages of ceramic fiber, and has its own advantages: ceramic fiber needle-punched blanket has white color, regular size, fire resistance, heat insulation, heat preservation in one. Does not contain any binder. It can maintain good tensile strength, toughness and fiber structure when used in neutral and oxidized atmosphere for a long time. Temperature resistance is 950-1400. Ceramic fiber needle-punched blanket properties: ceramic fiber needle-punched blanket has excellent performance of sound absorption and noise reduction; Excellent thermal stability; Excellent chemical stability; Excellent tensile strength; Low thermal conductivity; Low heat capacity.
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