In many industrial fields and special environments, high temperature is an unavoidable challenge. How to effectively resist high temperatures and protect the safety of personnel and equipment has become a key issue. High silica fiber felt, as a high-performance protective material, exhibits excellent performance in high temperature environments and can be regarded as a protective guard in high temperature environments. Now, let's delve into the high silica fiber felt together.

Basic Overview of High Silicon Oxide Fiber Felt

High silica fiber felt is a felt like material made of high silica glass fibers. High silica glass fiber is made from high-quality glass balls through a series of complex processes such as wire drawing and felt forming. The silica content of this fiber is usually above 96%, with extremely high purity.

Its appearance usually presents a white or grayish white felt like texture, with a soft and elastic texture. It has good processability and can be cut, sewn or molded into various shapes and sizes according to different needs to adapt to different application scenarios.

In the market, high silica fiber felt has been widely used, covering multiple fields such as aerospace, metallurgy, fire protection, and power. For example, in the aerospace field, it is used for thermal insulation protection of spacecraft; In the metallurgical industry, it can be used as an inner lining material for high-temperature furnaces.

Excellent performance of high silica fiber felt

One of the most outstanding properties of high silica fiber felt is its excellent high temperature resistance. It can be used for a long time in high temperature environments above 1000 ℃, and even maintain its structural integrity and certain physical properties when the instantaneous high temperature reaches 1600 ℃. This makes it irreplaceable in high-temperature industrial production and extreme high-temperature environments.

In addition to high temperature resistance, high silica fiber felt also has good thermal insulation performance. It can effectively prevent heat transfer and reduce heat loss. In some high-temperature furnaces, using high silica fiber felt as the lining material can significantly reduce the temperature of the furnace wall and improve energy utilization efficiency. For example, in a high-temperature heating furnace of a certain steel enterprise, after using high silica fiber felt for insulation renovation, the furnace wall temperature decreased by 50 ℃ and energy consumption decreased by 15%.

Meanwhile, high silica fiber felt also has excellent chemical stability. It can resist the erosion of most chemical substances, including corrosive substances such as acids and alkalis. In some high-temperature reaction equipment in the chemical industry, high silica fiber felt can be used as a protective material to protect the equipment from corrosion by chemical substances.

Production process of high silica fiber felt

The production process of high silica fiber felt is relatively complex, mainly including several key steps such as raw material preparation, drawing, felt formation, and post-treatment.

During the raw material preparation stage, it is necessary to select high-quality glass balls and conduct strict screening and processing to ensure that the quality of the glass balls meets production requirements. Then, the glass balls are melted in a high-temperature furnace, and the melted glass liquid is drawn into small diameter glass fibers using a drawing machine.

The felting process is to make the drawn glass fibers into a felt shape through a special process. Common felt forming methods include needle punching, chemical bonding, etc. Acupuncture is the process of interweaving fibers together using a needle punching machine to form a felt with a certain strength and density; The chemical bonding method is to use adhesives to bond fibers together.

The post-processing stage is to further process and treat the felt product to improve its performance. For example, high-temperature heat treatment can improve the purity and high-temperature resistance of fibers; Surface coating treatment can enhance its chemical stability and waterproof performance.

Application fields of high silica fiber felt

In the aerospace field, high silica fiber felt plays an important role. When spacecraft enter the atmosphere, they experience intense friction with the air, resulting in extremely high temperatures. High silica fiber felt can be used as insulation material for spacecraft to protect the safety of equipment and personnel inside the spacecraft. For example, when the US space shuttle returns to Earth, it uses a large amount of high silica fiber felt for insulation protection on its surface.

The metallurgical industry is also one of the important application areas of high silica fiber felt. In high-temperature furnaces, high silica fiber felt can be used as an inner lining material to reduce heat loss and improve the thermal efficiency of the furnace. At the same time, it can also protect the steel structure of the furnace from high temperature erosion, extending the service life of the furnace.

In the field of firefighting, high silica fiber felt is widely used in protective equipment such as firefighting suits and fire curtains. It can effectively prevent the transfer of flames and heat, providing reliable protection for firefighters. For example, during a fire rescue operation in a certain fire department, the firefighting suits worn by firefighters use high silica fiber felt as a thermal insulation layer, which can effectively protect the firefighters' bodies from harm in high temperature environments.

In the power industry, high silica fiber felt can be used for fire and insulation of cables. Laying high silica fiber felt in cable trays can prevent short circuits and damage to cables caused by fires, ensuring the safe operation of the power system.

Development prospects of high silica fiber felt

With the continuous advancement of technology and rapid development of industry, the performance requirements for high-temperature protective materials are also increasing. High silica fiber felt, as a high-performance protective material, has broad development prospects.

In terms of technological innovation, researchers are constantly exploring new production processes and formulas to further improve the performance of high silica fiber felt. For example, developing higher purity high silica fibers to improve their high temperature resistance and thermal insulation performance; Research new surface treatment technologies to enhance their chemical stability and waterproof performance.

In terms of application expansion, high silica fiber felt is expected to be applied in more fields. With the development of emerging industries such as new energy vehicles and electronic information, the demand for high-temperature protective materials is also constantly increasing. High silica fiber felt can be applied in fields such as battery thermal management systems for new energy vehicles and heat dissipation protection for electronic devices.

Meanwhile, with the continuous improvement of environmental awareness, higher requirements have been put forward for the environmental performance of protective materials. As an inorganic material, high silica fiber felt has good environmental performance and is in line with the trend of future development. I believe that in the future, high silica fiber felt will play a more important role in the field of high-temperature protection.