I. Basic Overview
Glass fiber needle-punched felt is crafted from glass fibers as its raw material. Through a mechanical needling process, the fibers within the felt layer and between the felt layer and reinforcing glass fiber base cloth are intricately entangled, forming a felt-like non-woven fabric filtration material. It not only inherits the inherent advantages of glass fiber fabrics but also undergoes special processing to enhance its performance even further.
II. Key Features
High Temperature Resistance: Glass fiber needle-punched felt remains stable under high-temperature conditions, typically enduring temperatures up to several hundred degrees Celsius, with the specific temperature range dependent on the material formulation and processing techniques.
Corrosion Resistance: Apart from hydrofluoric acid and high-temperature strong alkalis, glass fibers exhibit remarkable stability against chemical erosion from other media, making them suitable for various corrosive environments.
Dimensional Stability: Under high-temperature and corrosive conditions, the material undergoes minimal dimensional changes, ensuring consistent filtration performance.
High Strength: The glass fiber needle-punched felt boasts high tensile and burst strengths, capable of withstanding significant mechanical stresses.
High Porosity: The felt layer features a single-fiber, three-dimensional microporous structure with a high porosity rate, resulting in low resistance to gas filtration and enhanced filtration efficiency.
High Filtration Accuracy: Although its operational resistance is slightly higher than that of conventional high-temperature chemical fiber filter media, its superior filtration accuracy satisfies various high-precision filtration requirements.
Cost-Effectiveness: Compared to other high-temperature-resistant chemical fiber felts, glass fiber needle-punched felt offers the advantages of lower cost and higher temperature resistance.
III. Application Fields
Glass fiber needle-punched felt finds extensive applications across multiple industries, including but not limited to:
Industrial Flue Gas Purification: Used for high-temperature flue gas filtration in industrial furnaces and kilns across sectors such as chemicals, steel, metallurgy, carbon black, power generation, and cement.
Baghouse Dust Collectors: Suitable for various baghouse dust collectors, enhancing dust removal efficiency through pulse jet cleaning and high-speed reverse air blast cleaning methods.
Sound Insulation, Absorption, and Vibration Damping: In the automotive industry, it is employed for sound insulation, absorption, and vibration damping, enhancing ride comfort.
Thermal Insulation: Utilized for thermal insulation of high-temperature equipment fueled by various sources (coal, electricity, oil, gas), central air-conditioning ducts, thermal chemical pipelines, etc., offering superior performance compared to conventional insulation materials.
Other Applications: Including sealing, filtration, and insulation materials for special environments; thermal insulation between layers of color-coated steel plates and wooden structures; and insulation for household appliances like air conditioners, refrigerators, and microwave ovens.
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