Related knowledge of Ceramic Fiber Insulation

In the context of rising global energy prices and China's promotion of energy conservation and consumption reduction as a national strategy, the prospect of Ceramic Fiber Insulation materials that can save 10% to 30% energy compared with traditional refractory materials is very promising. Next, let us learn about the knowledge of Ceramic Fiber Insulation materials. Here are some answers.

Here is the content list:

• Definition.

• Technical indicators.

Definition.

Ordinary ceramic fiber, also known as aluminum silicate fiber, is called ceramic fiber because one of its main components is alumina, and alumina is the main component of porcelain. The addition of zirconia or chromium oxide can further increase the use temperature of ceramic fibers. Ceramic fiber products refer to industrial products with the advantages of a lightweight, high-temperature resistance, good thermal stability, low thermal conductivity, small specific heat, and mechanical vibration resistance, which are made of ceramic fibers as raw materials. It is specially used in a variety of high temperature, high pressure, and easy to wear environments. The Ceramic Fiber Insulation material is an excellent refractory material, which has the advantages of a lightweight, high-temperature resistance, good high-temperature thermal insulation performance, non-toxicity, etc., and is widely used.

Technical indicators.

Ceramics with alumina as the main component can be divided into high-purity alumina, 99, 95, 85, 75, etc. according to the percentage of alumina. The properties of the porcelain body depend on the composition and microstructure, and as the alumina content decreases, the melting point decreases. It has a low thermal expansion, high thermal conductivity, and high mechanical strength, so Ceramic Fiber Insulation material has high thermal shock resistance. For ceramics with a content of 99%, the sintering temperature is about 1700℃±10℃. With the increase of alumina content, sintering becomes more and more difficult, and a sintering aid is generally required. Its main properties are as follows: the density is 3.9g/cm3, the flexural strength is 370-450MPa, the dielectric strength is 25-30MV/m, and the volume resistivity is 1012-1013Ω·cm, and the relative dielectric constant is 10.0. It is often used to make crucibles, porcelain boats, refractory furnace tubes, etc. Alumina ceramics with a content of 95%, the sintering temperature is about 1650℃± 20℃. Its main properties are as follows: the relative dielectric constant is 8.5-9.6, the dielectric strength is 15-18MV/m, the volume resistivity is 1010-1012Ω and ·m, the flexural strength is 280-350MPa, and the density is about 3.5g/cm3.

Our official website is https://www.yufengrefractory.com/. If you are in a related occupation or are interested in our Ceramic Fiber Insulation products, we welcome you to contact us. We rely on a strong research center and advanced equipment to build an internationally competitive refractory enterprise. In the field of refractory materials, we provide customers with satisfactory refractory products and professional solution services and provide our customers with a comprehensive consultation and long-lasting after-sales service. Our company has first-class production equipment and a full set of refractory raw material and finished product testing equipment, with strong production capacity and research and development capabilities. The main production equipment is automatic control natural gas tunnel kiln, automatic hydraulic molding machine, loading and unloading manipulator, high-temperature shuttle kiln, isostatic pressing, grinding processing equipment, automatic batching system, etc.