The uses for pulverized ceramic fibers depend primarily on particle size, purity, and reuse scenarios. Common applications include:
1. Reprocessing
Product Recycling: Crushed ceramic fibers are used as raw materials to be remade into refractory products such as ceramic fiberboard, fiber blankets, and fiber paper.
Spray Coatings/Coatings: Crushed fibers mixed with a binder can be sprayed onto furnace linings, pipe exteriors, and other surfaces to form insulating refractory layers.
Casting/Spray Fillers: Used as lightweight aggregate or reinforcement to improve the thermal insulation and thermal shock resistance of refractory castables.
2. Thermal Insulation
Filling Materials: Used as interlayer fillers in high-temperature equipment to enhance thermal insulation.
High-Temperature Insulation Powder: Can be mixed with binders for use in high-temperature insulation coatings.
3. Special Applications
Filter Materials: Crushed small particles can be used as substrates for high-temperature filter elements.
Friction Materials: Mixed with resins and rubber, used in applications such as brake pads and clutch plates.
Composite material reinforcement: Compounded with ceramics, resins, and other materials to improve their high-temperature resistance and thermal shock resistance.
4. Waste Recycling
If waste cannot be directly used as a raw material for high-value-added products, it can also be used as a low-grade refractory insulation material for kiln secondary linings or low-temperature areas.
Note that ceramic fiber dust is irritating to the human body, so proper protection (mask, dust control measures) is required when handling it.