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- No.92 Jianshe West Road, Zhongyuan District, Zhengzhou, Henan,China.
- albert@literefractory.com
- +8619937887923
Henan Lite Refractory Material Co., Ltd. pays great attention to the combination and perfection of industrial chain and technology. We have a production base covering an area of 20,000 square meters, which ensures perfect quality and superior performance of all products. With a professional construction team of more than 100 people, we are capable of providing our customers with safe, efficient and environmentally friendly total solutions.
Wide Range of Applications
Refractory and Insulation Materials for Industry use are widely used in the following industry, such as Iron & steel making industry, Non-ferrous Metal industry, Building materials industry, Energy & Incineration.
Quality Assurance
We meet the highest quality requirements of ISO 9001, CE, SGS guidelines and our strict quality control system.
Products Sell Well
Our company pays more attention to the construction of service platform, and our business network has covered all provinces and cities in China. Products and services have also been extended to Indonesia, Pakistan, Turkey, Vietnam, Malaysia and Kazakhstan.
Advanced Equipment
We have a fully automatic batching system, fully automatic CNC screw press, 118m fully automatic high temperature tunnel kiln, 165m fully automatic natural gas fired high temperature tunnel kiln, two 1400°C shuttle kilns and four automated production lines.
Ceramic Fiber Cloth1.High temperature resistance2.Low calorie3.Excellent heat dissipation rate4.High tensile strength5.Low conductivity6.Strong chemical stability
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Ceramic Fiber Module1. Excellent thermal stability2. High-quality flexibility3. Good fiber lining4. Can be installed quickly
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Ceramic Fiber Rope1.High quality ceramic fiber2.High strength and temperature resistant3.Excellent insulation and non combustion4.Low density 5.low coefficient of thermal conductivity
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Ceramic Insulation Wool Roll Blanket Ceramic Fiber Blanke...Ceramic fiber insulation blanket is a kind of continuous cotton flat fiber blanket made of high-purity raw materials, which is formed by high-temperature melting, spinning, and needle punching. It is
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Ceramic Fiber BlanketCeramic fiber insulation blanket is a kind of continuous cotton flat fiber blanket made of high-purity raw materials, which is formed by high-temperature melting, spinning, and needle punching. It is
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1600 Degrees Custom Ceramic Insulation Blanket 128kg/M3 4...Ceramic fiber insulation blanket is a kind of continuous cotton flat fiber blanket made of high-purity raw materials, which is formed by high-temperature melting, spinning, and needle punching. It is
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Ceramic Fiber Rope For Sealing The Furnace Door Of The Kiln
Ceramic fiber rope is a high-temperature resistant and corrosion-resistant inorganic sealing and insulating material, woven from ceramic fibers. It is an ideal substitute for asbestos rope and is
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Ceramic Fiber Blankets For Glassmaking
Ceramic fiber insulation blanket is a kind of continuous cotton flat fiber blanket made of high-purity raw materials, which is formed by high-temperature melting, spinning, and needle punching. It is
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Ceramic Fiber Blankets For Industrial InsulationCeramic fiber insulation blanket is a kind of continuous cotton flat fiber blanket made of high-purity raw materials, which is formed by high-temperature melting, spinning, and needle punching. It is
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Fire-resistant Ceramic Fiber TapeCeramic fiber belts are a type of high-temperature-resistant, heat-insulating and fire-resistant material made from ceramic fibers through spinning and weaving. Their continuous operating temperature
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High Quality Low Price Ceramic Fiber RopeCeramic fiber rope is a high-temperature resistant and corrosion-resistant inorganic sealing and insulating material, woven from ceramic fibers. It is an ideal substitute for asbestos rope and is
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High-temperature Ceramic Fiber Blankets
Ceramic fiber insulation blanket is a kind of continuous cotton flat fiber blanket made of high-purity raw materials, which is formed by high-temperature melting, spinning, and needle punching. It is
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What is Ceramic Fiber Products
Ceramic fiber products use thin, yet strong, metallic fibers to create heat-resistant materials. In many industries, insulation and sealing play vital roles in high-temperature activities. Cloth and other materials provide flexibility and low weight for these applications. If you want to know the specifications and prices of Ceramic Fiber Products, please contact us!
Low Density
Ceramic fiber folded module lining is 70% lighter than light weight insulation brick and 75% ～ 80% lighter than castable lining.It can greatly reduce the load on the steel structure of the furnace and prolong the furnace body’s Service life.
Low Heat Capacity
The heat capacity of lining generally is proportional to the weight of the lining , low heat capacity means less heat absorption of kiln in reciprocating operation, and a high temperature rasing speed. Heat capacity of ceramic fiber is only 1/7 of lightweight refractory lining and lightweight fireclay, greatly reduced the energy consumption in the temperature’s operational control, especially has a very significant energy saving effect for intermittent operation of heating furnace.
Low Conductivity
When the average temperature of the ceramic fiber module is below 400 DEG, the thermal conductivity is less than 0.11W/ (K - M), and the thermal conductivity is less than 0.22W/ (M - K) when temperature is below 600 DEG, and the thermal conductivity is less than m (K - 0.28W/) at an average temperature of 1000 DEG. It’s about 1/8 of lightweight fireclay brick, is 1/10 of lightweight refractory(castable) lining, and the heat insulation effect is significant .
High Temperature Resistance
Ceramic fibers can withstand extremely high temperatures, making them suitable for applications where traditional materials would degrade or fail. They can handle temperatures well above 1000°C.
Low Thermal Conductivity
Ceramic fibers have low thermal conductivity, meaning they are effective insulators. This property makes them valuable in applications where thermal insulation is crucial, such as in industrial furnaces, kilns, and other high-temperature environments.
Low Thermal Mass
The low thermal mass of ceramic fibers allows for rapid heating and cooling cycles. This is particularly beneficial in processes that require quick temperature changes or where energy efficiency is essential.
Chemical Resistance
Ceramic fibers are often resistant to chemical corrosion. This property makes them suitable for use in environments with exposure to various chemicals, acids, and alkalis.
Lightweight
Ceramic fibers are lightweight, which can be advantageous in applications where weight is a concern. This is particularly important in aerospace and other industries where reducing overall weight is a priority.
Excellent Thermal Shock Resistance
Ceramic fibers can withstand sudden changes in temperature without breaking or degrading. This thermal shock resistance is crucial in applications where rapid temperature fluctuations occur.
Lexibility And Ease Of Installation
Ceramic fibers are often flexible and can be easily shaped or formed to fit specific applications. This flexibility simplifies the installation process, making it easier to use them in a variety of settings.
Low Smoke Emission
In certain applications, such as in the production of fire-resistant materials, ceramic fibers exhibit low smoke emission, contributing to improved safety in case of fire.
Electrically Insulating
Ceramic fibers are typically electrically insulating, which makes them suitable for applications where electrical insulation is required.
Ceramic Oxide Fibers
Ceramic oxide fibers are used both as insulation and as reinforcement material. The mostly known examples for oxide ceramic fibers are composed of oxides such as silica (SiO2), mullite (3Al2O3.2SiO2), alumina (Al2O3), and zirconia (ZrO2) having different characteristic properties.
Recently, different methods such as slurry spinning, sol-gel spinning, and single-crystal growth have been developed for manufacturing of oxide-based ceramic fibers.
Alumina (Al2O3)-based fibers are the most common of oxide fibers. These fibers exhibit excellent thermal, mechanical, and electric properties such as high-temperature strength, high thermal-shock and creep resistance, high dimensional stability, low thermal expansion coefficient, and good dielectric properties. Alumina-based fibers are often used as structural reinforcements in a variety of metal, ceramic, and polymer composites, making them stiffer and stronger. They are suitable for load-bearing applications; resulting composites withstand higher temperatures than metals.
Nextel ceramic fibers are spun, dried, and then sintered at high temperatures. Nextel fibers are manufactured from continuous oxide composite grade fibers designed for load-bearing structural applications in metal, ceramic, and polymer matrices.
Nextel 610 and 720 fibers have crystal structures based on α-alumina and α-alumina/ mullite, respectively. Nextel 610 fibers have higher strength at room temperature than Nextel 720 fibers. Another commercial alumina-based fiber that is Nextel 650 was developed as composite reinforcement for high-temperature applications. Nextel 650 oxide fibers contain α-alumina and cubic zirconia phases.
Nonoxide Ceramic Fibers
Production of nonoxide fibers is difficult due to their high melting points and resistance to densification. Oxidation resistance tends to be their main deficiency. For these fibers, extensive research has been conducted and reported in terms of processing, microstructure, mechanical, and thermal stability. These ceramic fibers are either fine or thick diameter.
Silicon Carbide Based Fibers
Silicon carbide (SiC) fibers have an excellent combination of high strength, modulus, and thermal stability, including good oxidation resistance and mechanical properties (compressive-tensile strength) at high temperatures. Silicon carbide based fibers are generally applied as continuous fiber in ceramic matrix. This type of CMCs is used in hot section of engines for power, etc.
Boron-Based Fibers
Boron fibers are commercially produced by CVD techniques; boron is generally coated on a fine tungsten wire (∼12 μm diameter) substrate. But a carbon substrate can also be used. Boron fiber with 100 μm diameter has a density of 2.6 g/cm3. It has high melting point of 2040°C. The average tensile strength of boron fiber is 3–4 GPa, while its Young’s modulus is between 380 and 400 GPa. Due to their superior mechanical properties and low density, they are used in military air crafts, space shuttle, and sports equipment such as golf shafts, tennis rackets, and bicycle frames.
Application of Ceramic Fiber Products
Ceramic Fiber Raw Cotton
Ceramic fiber cotton is made by melting the raw materials at high temperatures through a resistance furnace, and is produced by blowing or spinning into fibers. The diameter is generally 2~5μm, and the length is mostly 30~250mm.
The fiber surface of ceramic fiber cotton is smooth and cylindrical, and the cross section is usually circular. Its structure is characterized by high porosity (generally greater than 90%), large pore size, and specific surface area. Since the air in the pores has a good thermal insulation effect, the size of the pores in the fiber and the properties of the pores (open pores or closed pores) have a decisive impact on its thermal conductivity.
In fact, the internal structure of ceramic fibers is a mixed structure composed of solid fibers and air, and its microstructure is characterized by the presence of both solid and gas phases in the form of continuous phases. Therefore, in this structure, the solid matter exists in a fibrous form and constitutes a continuous phase skeleton, while the gas phase exists continuously in the skeleton gap of the fiber material. It is precise because the ceramic fiber has this structure that has a high porosity, a large pore diameter, and a large specific surface area, so the ceramic fiber has excellent thermal insulation performance and a small volume density.
Ceramic fiber cotton is a neutral and slightly acidic material. Except for reacting with strong acids and bases, it is not corroded by other weak bases, weak acids, water, oil, and steam. It is not infiltrated with lead, aluminum, and copper. It has excellent flexibility and elasticity. The density of ceramic fiber is small, which is more than 75% lighter than the lightweight heat-insulating brick lining, 90%~95% lighter than the light castable lining, and the thermal conductivity is about 1/8 of the light clay brick. It is a light heat-resistant lining. (castable) 1/10, the heat capacity value is only about 1/10 of the lightweight heat insulation lining and the lightweight castable lining, which greatly reduces the energy loss, and the energy-saving heat storage effect is remarkable. At the same time, ceramic fiber has the characteristics of simple construction, no need for an oven, shortened construction period, and easy installation.
Ceramic Fiber Coating System
The manufacturing method of the ceramic fiber covering material is to naturally settle the bulk ceramic fiber on the mesh belt of the cotton collector to form a uniform cotton blank and obtain a dry-process needle-punched blanket without binder through the needle-punched blanket-making process. The blanket is soft and elastic, has high tensile strength, excellent processing and construction performance, and is one of the most widely used products of ceramic fiber products. According to the different processes, the ceramic fiber coating system can be divided into two categories: spinning and blowing.
Ceramic Fiber Special-Shaped Parts
Ceramic fiber special-shaped parts are made of high-quality ceramic fiber cotton as raw material and made by vacuum forming process. It can be made into rigid and self-supporting special-shaped products with superior high-temperature performance. All shaped products have low shrinkage in their service temperature range, and maintain the characteristics of high heat insulation, lightweight and impact resistance. Unfired material is easily cut for machining. In use, the product resists galling and spalling well and is non-wettable by most molten metals.
vacuum formed ceramic fiber shaped parts include tube shape, cone shape, dome shape, and square box shape. Most of the special-shaped products are produced according to customer requirements, such as casting caps and sleeves for the non-ferrous metal industry, and vacuum forming fire watch for the petrochemical industry. hole etc.
How Ceramic Blankets Work
Exploring the Composition and Structure of Ceramic Blankets
Ceramic blankets, widely recognized for their exceptional thermal insulation properties, are versatile materials used in various industries, including aerospace, metallurgy, and energy. Delving into their composition and structure is crucial to understand how ceramic blankets work.
Ceramic blankets predominantly comprise ceramic fibres, finely woven or spun from high-temperature-resistant materials such as alumina, silica, or zirconia. These fibres are engineered to have excellent thermal resistance, low thermal conductivity, and exceptional durability. The unique combination of these properties makes ceramic blankets highly efficient in minimizing heat transfer and providing effective insulation.
The structure of ceramic blankets is designed to optimize heat retention and prevent thermal conduction. They typically feature a layered construction consisting of multiple fibre layers. The individual layers are bonded using a specialized binder, creating a coherent and robust blanket. The binder enhances the blanket's resistance to thermal shocks and mechanical stress.
The Role of Ceramic Fibers in Thermal Insulation
The unique composition of ceramic fibres enables them to resist thermal conduction effectively. Their inherent low thermal conductivity restricts the movement of heat through the material, preventing it from escaping or infiltrating the insulated area. This property allows ceramic blankets to create a barrier against temperature fluctuations, making them indispensable for applications requiring precise thermal control.
Furthermore, ceramic fibres exhibit exceptional thermal stability, even under extreme conditions. They can withstand temperatures exceeding 1000 degrees Celsius without significant degradation. This resilience ensures that ceramic blankets maintain their insulating efficiency over prolonged periods, making them a reliable choice for long-term insulation needs.
Understanding the Principle of Trapped Air Pockets for Heat Retention
One of the fundamental principles behind the thermal insulation provided by ceramic blankets is the utilization of trapped air pockets. These air pockets, created within the fibrous structure, act as an insulating barrier by impeding heat transfer.
When heat attempts to pass through the ceramic blanket, it encounters the air pockets, which consist of stagnant air. Air, being a poor conductor of heat, significantly reduces the thermal conductivity of the blanket. As a result, the trapped air pockets effectively inhibit the heat flow, preventing it from escaping or penetrating the insulated space.
The fibrous nature of ceramic blankets contributes to the formation and retention of these air pockets. The intertwined ceramic fibres create a network of tiny voids, allowing air to become trapped within the material. This intricate structure ensures that the insulating properties of the blanket are maximized, as a higher number of air pockets translate to improved thermal resistance.
In addition to reducing heat transfer, the trapped air pockets enhance the ceramic blanket's flexibility and lightweight nature. These characteristics make them suitable for various applications, including insulation in complex geometries or areas with limited space.
Frequently Asked Questions
As one of the leading ceramic fiber products manufacturers and suppliers in China, we warmly welcome you to buy high-grade ceramic fiber products in stock here from our factory. All customized products are with high quality and competitive price. For free sample, contact us now.
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