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Question:

What kind of material is ceramic fiber? What are the basic performance?

What kind of material is ceramic fiber? What are the basic performance?

Answer:

Ceramic fiber, referred to as "ceramic fiber felt", is a kind of high temperature resistant refractory material (such as precious stones) by arc melting, compressed air sprayed with a fibrous material, also known as "ceramic fiber cotton.". Using ceramic fiber cotton, it can be made into all kinds of ceramic fiber products. The content of domestic ceramic fiber felt from AI2O3 is 62% and 45%, the former is 1150-2000 DEG C, and the latter is l000 DEG C.The ceramic fiber felt by the adhesive is divided into hard ceramic fiber felt (aluminum phosphate adhesive), ceramic fiber felt soft (adhesive latex, polymerization aluminum, water glass, methyl cellulose, latex 11 aluminum phosphate composite adhesive) and ceramic fiber wet felt (adhesive silica sol) three. According to the performance of the felt and the temperature of the furnace, the hot surface of the furnace wall can be made of hard felt.The size of the ceramic fiber product is 600 * 400 * 20 (10) mmThe basic properties of the felt are as follows:(L) the use of high temperature can reach l000 degrees centigrade.
(2) the density of Tao Xianzhan is below 200Kg/m3 (generally 160kg / m3), only light heat resistant lining L / 6 - 1/7.(3) the heat capacity is only 1 / 9 of light heat resistant lining and light fireclay bricks.(4) the ceramic fiber is stable in high temperature, the residual shrinkage rate is very small, and it needs no shrinkage or expansion joints, so it is easy to construct.(5) the coefficient of thermal conductivity is small. On the hot surface temperature of 600 degrees Celsius (the average temperature of 366 DEG C) when the orientation coefficient is 0.078W / (M. K); 900 (the average temperature is 551 DEG C) of O.096W / (m.k); 1100 (the average temperature is 678 DEG C) of 0.125W / (m.k), is about light fireclay bricks 1 / 8, for the light at 1 / 10 heat resistant lining.(6) sound insulation effect is good. The ceramic fiber coating can reduce the high-frequency noise with frequency less than 1000Hz, and also absorb some low-frequency noise.(7) it has a certain tensile strength.(8) good chemical stability.(9) good elasticity (78% at normal temperature), easy to transport and install.(10) it has better resistance to airflow erosion, and can withstand 30 - 50m/s airflow erosion.
Ceramic fiber is a fibrous lightweight refractory material, has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, specific heat and resistance to mechanical vibration, and thus in machinery, metallurgy, petroleum, ceramics, glass, electronics and other industries have been widely used in recent years because of. The global energy prices rising, energy saving has become a China national strategy background, than other traditional insulation bricks and refractory pouring material such as 10-30% ceramic fiber has been applied more and more widely in the domestic Chinese, the development prospects are very promising.Ceramic fiber products refers to the use of ceramic fiber as raw materials, through processing made of light weight, high temperature resistance, good thermal stability, thermal conductivity of industrial products, low heat resistance of small and mechanical vibration etc., specially used for all kinds of high temperature, high pressure, easy to wear in the environmentScope of application:Ceramic fiber product is a kind of excellent refractory material. The utility model has the advantages of light weight, high temperature resistance, small heat capacity, good insulation and heat insulation performance, good high-temperature heat insulation performance, no toxicity, etc..Technical parameter:The temperature is -100 DEG C, -+1200 DEG CPressure 0-20MPaChemical tolerance pH value 4-14

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