SUNTHERM High-Purity Alumina Soluble Fiber Blanket

Product Overview

Soluble fiber blanket exhibits excellent chemical and thermal stability, maintaining its shape and performance over long periods under high temperatures. It also offers outstanding resistance to chemical corrosion and good mechanical strength. Compared to traditional ceramic fiber blankets, soluble fiber blankets are more easily dissolved in water and biodegradable in high-temperature environments, making them environmentally friendly. They are widely used for insulation and heat retention in high-temperature equipment across industries such as metallurgy, chemical engineering, power generation, and aerospace.

Product Features and Advantages

Excellent High-Temperature Resistance

The blanket can withstand long-term use at temperatures up to 1260°C, with short-term tolerance reaching 1350°C, meeting the demands of various high-temperature industrial applications.

Environmentally Friendly Solubility

The fibers can be slowly dissolved by bodily fluids and natural water, reducing respiratory hazards. The product complies with international environmental safety standards and represents a new generation of green and eco-friendly refractory materials.

Outstanding Thermal Insulation

With an extremely low thermal conductivity, it significantly reduces heat transfer, lowers energy consumption, and improves equipment operational efficiency.

Excellent Mechanical Strength and Flexibility

The uniform fiber structure and soft texture provide exceptional tensile and compressive strength, facilitating easy installation and application.

Strong Chemical Corrosion Resistance

Resistant to various acids and alkalis, making it suitable for complex chemical and high-temperature corrosive environments.

Low Heat Capacity and Rapid Thermal Response

Its low heat capacity allows for quick heating, enhancing energy efficiency. This makes it ideal for heat treatment processes involving frequent start-stop cycles.

Safe and Non-Toxic

Free from asbestos, heavy metals, and radioactive substances. Complies with EU RoHS and REACH environmental directives.

Product Specifications and Packaging

Specifications

Thickness Range: 6mm – 50mm

Width: 610mm (standard), customizable upon request

Length: Standard 7200mm, adjustable based on thickness

Packaging Method

Individually rolled, wrapped with moisture-proof plastic film

Packed in cartons or woven bags, labeled with specifications and batch numbers

Customized packaging supported to meet client requirements

Storage Requirements

Store in a dry and well-ventilated area to avoid moisture

Storage temperature: 0℃ – 40℃

Avoid heavy pressure and mechanical damage

Brief Introduction to Manufacturing Process

Raw Material Preparation: High-purity alumina and aluminum silicate are carefully selected as the main raw materials to ensure chemical purity and final product quality.

High-Temperature Melting and Fiber Spinning: The raw materials are melted in high-temperature furnaces and then formed into fine inorganic fibers through high-speed blowing or spinning processes.

Blanket Formation: The fibers are evenly distributed via web-laying and shaped through wet or dry processes to form a soft and uniform blanket.

Heat Treatment: The formed fiber blanket undergoes high-temperature shaping and crystallization treatment to enhance thermal stability and mechanical strength.

Surface Treatment (Optional): For specific applications, additional treatments such as waterproofing, wear resistance, and flame retardancy are available.

Inspection and Packaging: After strict quality inspection, the product is packaged according to specifications to ensure intact delivery.

Main Application Fields

Metallurgical Industry

Used for thermal insulation in high-temperature kilns, ladles, and heat treatment furnaces to improve temperature stability and reduce heat loss.

Petrochemical Industry

Applied for anti-corrosion insulation in chemical reactors, high-temperature pipelines, and equipment to resist acid and alkali corrosion and extend service life.

Power Industry

Utilized for thermal insulation protection in boilers, heat exchangers, and pipelines to ensure efficient and safe operation.

Aerospace

Used for thermal protection in critical components such as engine heat shields and rocket nozzles, ensuring performance in extreme environments.

High-Temperature Heat Treatment

Suitable for lining insulation in heat treatment furnaces and sintering furnaces, ideal for frequent start-stop thermal operations.

Other Specialized Fields

Applied in diverse areas such as environmental protection equipment, high-temperature sealing, and insulation gaskets.

Analysis of Product Advantages

Soluble and Eco-Friendly

Unlike traditional ceramic fiber materials that are difficult to dissolve and may cause respiratory irritation, the soluble fiber blanket features unique water-soluble properties, significantly reducing occupational health risks and promoting environmental sustainability.

Performance Stability

The fiber structure remains stable under repeated high-temperature cycles, without powdering or peeling, ensuring long-term performance consistency, extended maintenance cycles, and reduced maintenance costs.

Flexibility in Manufacturing

Customizable in thickness, density, and specifications to meet diverse requirements of industrial equipment. Supports various surface treatment processes to enhance product value.

Ease of Installation

The blanket is soft, easy to cut, and simple to install, shortening construction time and reducing labor costs.

Construction and Usage Precautions

Preparation Before Construction

Ensure the construction site is dry and well-ventilated to prevent moisture ingress.

Workers should wear protective masks, gloves, and goggles.

Installation Recommendations

Cut the blanket to appropriate dimensions according to equipment structure.

Install using high-temperature-resistant adhesives or mechanical fastening methods.

Seal joints properly to prevent heat loss.

Usage and Maintenance

Avoid mechanical impact or damage to the fiber blanket.

Regularly inspect the condition and replace any damaged sections promptly.

Store in a dry environment to prevent moisture absorption.

Quality Control System

The company maintains a comprehensive quality management system, implementing strict controls throughout the entire process-from raw material procurement and production processing to finished product inspection and shipment. Key inspection items include:

Chemical composition analysis of raw materials

Fiber diameter and distribution analysis

Thermal conductivity testing

Mechanical strength testing

High-temperature stability verification

Environmental compliance testing (RoHS, REACH conformity)

All products are accompanied by inspection reports to ensure superior quality.

Packaging and Logistics Services

Standard packaging ensures safe and damage-free transportation with moisture-proof protection

Customized packaging solutions available to meet specific client requirements

Global logistics and distribution services to guarantee timely delivery

Comprehensive after-sales support system, including technical assistance and return/exchange policies

Client Cases

A major steel plant achieved a 10% reduction in furnace heat loss using soluble fiber blankets, resulting in significant energy savings.

A chemical enterprise enhanced the corrosion resistance of high-temperature reactor insulation systems with our product, extending equipment lifespan.

An aerospace research institute selected our product for engine heat shields, demonstrating stable performance through multiple thermal cycling tests.

FAQ

Q1: What is the maximum operating temperature of soluble fiber blankets?

A1: The product can withstand continuous use at temperatures up to 1260°C, with short-term tolerance reaching 1350°C, making it suitable for most high-temperature industrial applications.

Q2: Why are soluble fiber blankets considered environmentally friendly?

A2: The fibers gradually dissolve in aqueous environments, reducing dust hazards. The product contains no asbestos or carcinogenic substances and complies with international environmental standards.

Q3: How to determine the appropriate density for soluble fiber blankets?

A3: Density selection depends on equipment operating temperature and insulation requirements: lower density is suitable for light-duty insulation, while higher density is recommended for high-temperature and heavy-duty conditions.

Q4: What precautions should be taken during installation?

A4: Wear protective equipment during construction, ensure a dry working environment, and seal all joints thoroughly to prevent heat loss.

Q5: Which equipment is suitable for soluble fiber blankets?

A5: They are widely used in industrial furnaces, high-temperature pipelines, chemical equipment, power boilers, aerospace engine insulation, and more.

Q6: How should the product be stored and transported?

A6: Store in a dry, ventilated area to avoid moisture and mechanical damage. Use moisture-proof packaging during transportation.

As an essential eco-friendly refractory material for modern high-temperature industries, soluble fiber blankets are valued for their exceptional heat resistance, environmental benefits, and customization flexibility. They are extensively applied across metallurgy, chemicals, power generation, aerospace, and other sectors. Continuous technological innovation and rigorous quality management ensure our products remain at the forefront of the industry, delivering greater value to our clients.

For more details or to request samples, please contact our sales and technical team at any time.

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