Alumina Ceramic Fiber Special-Shaped Components
Alumina ceramic fiber shaped parts are high‑temperature refractory products with specially designed geometries, manufactured using high‑purity alumina fibers as the primary raw material and a vacuum filtration molding process. As a deeply processed product of Al₂O₃–SiO₂ ceramic fibers, they address the challenge of fitting standard boards and felt blankets into complex, irregularly shaped areas. Depending on the alumina content, these products can withstand operating temperatures ranging from 1500 to 1700°C—200–400°C higher than conventional aluminosilicate fibers. They are widely used as custom‑shaped linings in high‑temperature industrial kilns and other thermal equipment across industries such as metallurgy, machinery, electronics, ceramics, chemical engineering, and aerospace, helping to achieve energy savings, increased production, extended furnace life, and improved working conditions. The products feature a white appearance, a smooth surface, precise dimensions, and self‑supporting strength, resembling pre‑formed fiber assemblies.
Category:
Fiber-shaped products
The company’s products feature numerous technological achievements and innovative, practical technologies. We manufacture polycrystalline mullite fiber fireproof boards, polycrystalline alumina fiber furnace linings, ceramic fiber furnace linings, polycrystalline mullite fiber furnace linings, and crystalline fibers.
E-mail：ncjt@zjncjt.com
Product Description
1. Product Description:
Alumina ceramic fiber shaped parts are specialized products developed to meet the refractory and thermal insulation requirements of complex areas in high‑temperature industrial kilns and other thermal processing equipment. They can operate at temperatures as high as 1500–1700°C, which is 200–400°C higher than that of standard aluminosilicate fiber. These parts are widely used as custom‑shaped linings and components in industries such as metallurgy, chemical engineering, electronics, and aerospace, helping to achieve energy savings and improved efficiency. The products are made from polycrystalline alumina fiber or high‑purity fiber, formed via vacuum filtration, and can be custom‑made according to drawings with precise dimensions. They feature a white appearance, a smooth surface, and self‑supporting strength, resembling pre‑formed fiber assemblies.
2. Product Features:
Due to their unique manufacturing processes and fiber structures, alumina ceramic fiber shaped parts possess a range of characteristics that significantly outperform traditional heavy-duty refractories as well as standard fiber blankets and felts:
Highly customized and dimensionally precise: Manufactured using dedicated molds, it can produce a variety of complex shapes—including circular, conical, square box, and curved forms—as well as designs with holes and grooves. With its high dimensional accuracy, it is easy to install and seal, making it the ideal material for solving insulation challenges in complex areas.
Excellent thermal and physical properties: It inherits the low heat capacity and low thermal conductivity characteristics of fiber materials, delivering remarkable insulation performance. At the same time, thanks to the vacuum forming process, the product exhibits a certain level of compressive strength (e.g., ≥0.2 MPa) and structural rigidity, resulting in a tough texture with excellent resistance to wind erosion and spalling, capable of withstanding the scouring action of high‑speed airflows.
High-Temperature Stability and Thermal Shock Resistance: The product exhibits low linear shrinkage within its operating temperature range and boasts excellent volumetric stability. More importantly, its fibrous structure endows it with outstanding thermal shock resistance, enabling it to withstand drastic temperature fluctuations caused by rapid cooling and heating without cracking or spalling.
Chemical Stability and Non-Wetting Properties: The product exhibits excellent non-wetting properties against most molten metals, such as aluminum and copper, and is resistant to corrosion, making it particularly suitable for components that come into contact with non-ferrous metals. It also boasts superior corrosion resistance and strong chemical stability.
Easy to Work With: Although it possesses a certain degree of rigidity, the product can be cut, drilled, or machined using standard woodworking tools when it has not been fired or is in a specific state, making on-site fine-tuning and installation convenient.
3. Product Applications
Widely used in industrial kilns for metallurgy, chemical engineering, electronics, glass, and other industries, these include custom-shaped linings and components such as burner bricks, observation ports, thermocouple sleeves, and electric heating element supports; molten metal channels, flow troughs, stoppers, and distribution plates in non-ferrous metal smelting and processing; thermal insulation and sealing for heat pipelines and flanges; fire protection in construction, high‑temperature filtration, and specialized custom‑shaped insulating components used in aerospace research and experimental facilities.
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E-mail: ncjt@zjncjt.com
Zhejiang Nengcheng Crystal Fiber Co., Ltd
150 meters south of the intersection of Wulin Road and Yonghe West Road, Deqing County, Huzhou City, Zhejiang Province.
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