Ceramic Fiber Vacuum Forming Products

1. Product Overview

Ceramic fiber vacuum forming products are high-performance fire-resistant insulation materials made from high-quality ceramic fibers through vacuum forming technology. This product fully utilizes the characteristics of ceramic fibers that are resistant to high temperatures, lightweight, and have excellent thermal insulation performance. After special processing, it has good flexibility, plasticity, and high strength. It can be customized into various complex shapes and specifications according to different usage requirements. It is widely used in high-temperature industries, building fire protection, energy and environmental protection, and other fields. It is an ideal choice for solving high-temperature insulation, fire protection, and other problems.

2. Technical parameters

3. Core Advantages​

(1) Excellent high temperature resistance​

Ceramic fiber vacuum forming products can be used stably for a long time in high temperature environments of 1000℃ - 1400℃, and some specially formulated products can even withstand extreme high temperatures of up to 1600℃. Under high temperature conditions, the product does not melt, drip, or produce harmful gases, which can effectively protect the safety of equipment and personnel and ensure the stable operation of industrial production.

(2) High efficiency heat insulation and energy saving​

Its thermal conductivity is extremely low, only 0.03 - 0.04W/(m・K) at room temperature, and it can maintain good heat insulation performance even in high temperature environments. Used for heat insulation of industrial kilns and thermal pipelines, it can significantly reduce heat loss, reduce energy consumption, improve energy utilization efficiency, and save a lot of operating costs for enterprises.

(3) Excellent flexibility and plasticity

Through the vacuum forming process, the product can be made into various complex shaped parts, such as arc, U-shaped, ring-shaped, etc., which can fit closely to the surface of the equipment, effectively fill the gap, avoid the thermal bridge effect, and achieve seamless thermal insulation protection. At the same time, the product is flexible and easy to cut, install and disassemble, which greatly improves the convenience and flexibility of construction.

(4) High strength and impact resistance

Although the product is light, it has high compressive strength and tear resistance after special processing. In the case of external impact, vibration or frequent disassembly and assembly, it can still maintain structural integrity, not easy to break, long service life, and reduce maintenance and replacement costs.

(5) Strong chemical stability

It has good tolerance to most acid and alkali chemicals, is not prone to chemical reactions and corrosion, and is suitable for various complex chemical environments. Even in the presence of corrosive gases or liquids, it can maintain stable physical and chemical properties for a long time to ensure the safe operation of the equipment.

4. Manufacturing process flow

Raw material preparation: Ceramic fibers are chopped to a length of 3-5 mm and mixed with an inorganic binder (such as silica sol) at a ratio of 1:0.2-0.5 to form a slurry with a solid content of 15-25%.

Vacuum adsorption: The slurry is injected into a porous mold (mostly made of resin or metal), dehydrated at a vacuum degree of -0.08~-0.1MPa, and the fibers are arranged in a directional manner to form a preform.

Drying and curing: Drying at 80-120℃ for 12-24 hours to evaporate moisture and initially cure the binder.

High-temperature sintering: Heat treatment at 800-1200℃ for 2-4 hours to achieve inter-fiber sintering strengthening, with a volume shrinkage of about 3-8%.

5.Application scenarios

(1) High-temperature furnace lining: such as aluminum alloy melting furnace (working temperature 700-900℃), which is 60% lighter than traditional refractory bricks and saves 15-30% energy.

(2) Aerospace thermal protection: Rocket engine nozzle heat shield, which can withstand instantaneous high-temperature airflow of 2000℃.

(3) Automobile exhaust system: Turbocharger heat shield, which reduces cabin temperature by 50-80℃.

(4) Semiconductor equipment: Wafer heat treatment fixture, which maintains dimensional stability (±0.1mm) at 1200℃.

6. Precautions for use

Installation specification: Use compensation structure design, and reserve 0.5-1% thermal expansion gap (such as 8-10mm/m for 1600℃ products)

Dust control: The ambient particle concentration during processing must be less than 1mg/m³, and the operator must wear a P100 dust mask

Maintenance cycle: It is recommended to test the surface hardness after every 2000 hours of high-temperature operation (Shore hardness decreases by more than 15% and needs to be replaced)

7. Development trend

‌Composite structure‌: Composite with carbon fiber or metal mesh reinforcement layer to improve mechanical impact resistance

‌Nano coating‌: Surface coating of Al₂O₃ nano coating increases the use temperature to 1700℃

‌Digital molding‌: Combine 3D printing technology to manufacture gradient porosity structure and optimize insulation/strength ratio

Ceramic fiber vacuum forming products are driving high-temperature industrial equipment towards lightweight and high-efficiency development. For example, in the thermal management system of new hydrogen energy vehicle fuel cells, its application can reduce the weight of hot end components by more than 40%. With technological advances, greater breakthroughs are expected in extreme environments such as nuclear energy and deep space exploration in the future.

8. FAQ

Q1: How long does it usually take to produce ceramic fiber vacuum forming products? ​

A1: The production cycle is usually affected by factors such as order quantity and product specification complexity. Conventional standard products can be produced in 3-7 working days; if it is a customized special-shaped product, the production cycle may be extended to 10-15 working days. Please communicate with our sales team for details.​

Q2: Can the shape and size of the product be customized according to customer requirements? ​

A2: Absolutely. We can customize and produce products of various complex shapes and specifications according to the drawings or specific needs provided by customers to meet the installation and use requirements of different scenarios.

Q3: Will the flexibility of ceramic fiber vacuum forming products affect their strength? ​

A3: No. Although the product has good flexibility and is easy to process and install, through special processing, its internal fiber structure is compact and has high compressive strength and tear resistance. Even if it is frequently bent or impacted by external forces, it can maintain structural integrity and will not weaken its strength due to flexibility.

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