The national standard density of ceramic fiber modules is 220Kg/m³, which is determined by the following two aspects.
1. Seperti yang kita semua tahu, kinerja isolasi termal yang baik dari serat keramik berasal dari konduktivitas termal yang rendah. Konduktivitas termal modul serat keramik menurun dengan meningkatnya kerapatan curah, tetapi besarnya penurunan secara bertahap menurun. Ketika kepadatan melebihi 300KG/M3, konduktivitas termal tidak lagi menurun dan cenderung meningkat.
2. However, the density limit of the ceramic fiber module is 240Kg/m³; this is because the ceramic fiber blanket is made of fiber cotton with a double-roll spinning process. The length of the fiber cotton is between 80-130 mm. Once it exceeds 240Kg/m³ At this limit density, the fibers will break a lot, and the breaking rate is as high as 48 percent , thus affecting the product performance.
In practical applications, the density of the ceramic fiber module should be comprehensively considered according to the furnace type, temperature, combustion medium, and temperature rise requirements of the heat treatment furnace, but a reasonable density should be between 200-240Kg/m³, preferably 220Kg/m³ .
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