The national standard density of ceramic fiber modules is 220Kg/m³, which is determined by the following two aspects.
1.ご存知のように、セラミックファイバーの優れた断熱性能は、熱伝導率が低いことに由来します。 セラミックファイバーモジュールの熱伝導率は、かさ密度の増加とともに減少しますが、減少の大きさは徐々に減少します。 密度が300KG/M3を超えると、熱伝導率は低下せず、増加する傾向があります。
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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