Basic overview of aluminum silicate fiber

Aluminum silicate fiber is a high-performance ceramic fiber material composed of aluminum and silicon elements. It is widely used in high-temperature insulation and industrial fields. Aluminum silicate fiber has attracted great attention from the industry for its excellent fire resistance and heat insulation properties. Today, we will take you to briefly understand some aspects of aluminum silicate fiber, hoping to be helpful to you.

Characteristics of aluminum silicate fiber

Aluminum silicate fiber has the following significant characteristics:

• High temperature stability: The melting point of aluminum silicate fiber is approximately above 1800℃, and it can work in high temperature environments of 1000℃-1600℃ for a long time without degradation.
• Low thermal conductivity: When the density is 128kg/m³, the average thermal conductivity of aluminum silicate fiber is 0.12w/m·k (at 800℃).
• Chemical stability: Aluminum silicate fiber has good chemical stability in acid, alkali and other chemical atmospheres, and has excellent oxidation resistance.
• Good mechanical properties: Aluminum silicate fiber can maintain its strength and toughness at high temperatures and is not easily brittle.

Industrial applications of aluminum silicate fibers

Aluminum silicate fiber is widely used in the following fields:

• High-temperature kiln: As the lining material of high-temperature furnace, it significantly improves the thermal insulation performance of the furnace body and effectively reduces energy consumption.
• Petrochemical industry: Due to its superior resistance to chemical corrosion, aluminum silicate fiber is widely used in the thermal insulation layer of petrochemical equipment.
• Power equipment: In high-temperature power equipment, aluminum silicate fibers are used as insulation materials for key components to ensure efficient operation of the equipment.

Manufacturing method of aluminum silicate fiber

Usually, the industry mainly uses two methods to produce aluminum silicate fibers: spinning method and blowing method.

Filament spinning method: This method is to melt the aluminosilicate raw material and throw out the fibers through a high-speed rotating spinning machine. This method has high production efficiency and low cost.

Injection method: This method is to inject molten aluminosilicate raw materials into high-speed airflow to form fibers. The fibers produced by this method have uniform diameter and long length.

Global market development prospects

With the acceleration of industrialization and the improvement of environmental protection requirements, the market demand for aluminum silicate fibers continues to grow. Data shows that the global aluminum silicate fiber market is expected to grow from US$500 million in 2023 to US$800 million in 2030, with a compound annual growth rate of 5.2%.

Overall, with the continuous advancement of technology and the continuous expansion of the industry, aluminum silicate fiber, as a refractory material with superior properties, will play an increasingly important role in the field of high-temperature insulation in the future.