Home > News > In - depth Explanation of the Thermal Insulation Mechanism of Low - Thermal - Conductivity Mullite Fiber Boards: Achieving an Excellent Performance of 0.085 W/m·K

In - depth Explanation of the Thermal Insulation Mechanism of Low - Thermal - Conductivity Mullite Fiber Boards: Achieving an Excellent Performance of 0.085 W/m·K

Rongsheng Refractory
2026-02-09
Technical knowledge
This article delves into the thermal insulation mechanism of the polycrystalline mullite fiber boards produced by Zhengzhou Rongsheng Refractory Materials Co., Ltd., which have a low thermal conductivity of 0.085 W/m·K. It details how the composite material structure and advanced manufacturing processes contribute to the outstanding high - temperature insulation performance (with a maximum temperature resistance of 1800°C). The article also showcases the material's advantages of being lightweight, environmentally friendly, and customizable in thickness. Combined with typical application scenarios in industries such as casting, metallurgy, and petrochemicals, it shares practical installation and maintenance experiences to assist engineering technicians in optimizing equipment insulation, reducing energy consumption, and lowering operating costs. The content balances technical depth and practicality, supplemented by data and diagrams, aiming to provide authoritative references and guidance for professionals interested in high - temperature industrial insulation solutions.
The internal structure of polycrystalline mullite fiber boards

In - depth Explanation of the Thermal Insulation Mechanism of Low - Thermal - Conductivity Mullite Fiber Boards: How to Achieve an Excellent Performance of 0.085 W/m·K?

In the field of high - temperature industrial insulation, the demand for efficient and reliable insulation materials is constantly increasing. Zhengzhou Rongsheng Refractory Materials Co., Ltd.'s polycrystalline mullite fiber boards have emerged as a remarkable solution, boasting a low thermal conductivity of 0.085 W/m·K and a maximum temperature resistance of up to 1800°C. This article delves into the thermal insulation mechanism, material characteristics, and practical applications of these fiber boards.

Material Characteristics and Preparation Process

The polycrystalline mullite fiber boards are made of high - quality mullite fibers. Through an advanced preparation process, these fibers are combined to form a unique composite structure. The composite structure is the key to reducing the thermal conductivity. The fibers are arranged in a way that creates numerous small air pockets within the material. Air is a poor conductor of heat, and these air pockets effectively block the heat transfer path, reducing the thermal conductivity to an outstanding 0.085 W/m·K. This data is confirmed by multiple independent laboratory tests.

The internal structure of polycrystalline mullite fiber boards

High - Temperature Tolerance Performance

Another significant advantage of these fiber boards is their high - temperature tolerance. With a maximum temperature resistance of 1800°C, they can withstand extremely harsh industrial environments. In a steel smelting plant, for example, where the furnace temperature can reach over 1500°C, conventional insulation materials may deteriorate quickly. However, Rongsheng's mullite fiber boards maintain their structural integrity and insulation performance, ensuring the stable operation of the equipment and reducing heat loss.

Mullite fiber boards used in a high - temperature furnace

Lightweight, Environmental - Friendly, and Customizable

The mullite fiber boards are lightweight, which makes installation easier and reduces the overall load on the equipment. They are also environmental - friendly as they are free from harmful substances. Moreover, the boards can be customized in terms of thickness. This flexibility allows engineers to design insulation solutions tailored to specific requirements. For instance, in a glass kiln, different areas may require different insulation thicknesses to achieve optimal thermal efficiency.

Typical Applications and Practical Experience

These fiber boards have a wide range of applications in industries such as casting, metallurgy, and petrochemicals. In a casting factory, proper insulation of the casting equipment can improve the quality of castings and reduce energy consumption. When installing the fiber boards, it is important to ensure a tight fit to prevent heat leakage. Regular maintenance, such as checking for any damage or wear, can also extend the service life of the insulation materials.

Mullite fiber boards used in a petrochemical plant

In conclusion, Zhengzhou Rongsheng's polycrystalline mullite fiber boards offer a comprehensive solution for high - temperature industrial insulation. Their excellent thermal insulation performance, high - temperature tolerance, lightweight design, and customization options make them an ideal choice for various industrial applications. If you are looking for a reliable high - temperature insulation material or need more technical support, click here to learn more about our mullite fiber boards and related services.

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