Ceramic Fiber Blanket VS. Carbon Felt Welding Blanket

RB Ceramic Fiber Blanket
The RB ceramic fiber blanket is a high-strength, needled insulating product made from RB bulk. Its combination of long-spun fibers and needling produces a tough, resilient blanket that resists tearing both before and after heating. Completely inorganic, the RB blanket is available in various temperature grades, densities, and sizes. It can be folded, compressed, and encapsulated to create modules.

Bio-RB Blanket
The Bio-RB blanket is also a high-strength, needled insulating material crafted from Bio-RB bulk. Its spinning and needling processes yield tough, resilient blankets with superior thermal and mechanical properties. This blanket is versatile, used in applications such as thermal insulation for appliances, and meets European regulatory requirements (Directive 97/69/EC).

Features

Excellent thermal shock resistance
Excellent thermal stability
High tensile strength
Low thermal conductivity
Low heat storage

Typical Applications

Pipe wrap
Furnace and kiln backup insulation
Chimney insulation
Annealing furnace linings
Process heater linings

Description

Property	STD BLANKET	HP BLANKET	HA BLANKET	HZ BLANKET
Classification Temperature (℃)	1260	1260	1350	1430
Chemical Composition (%)
Al₂O₃	≥43	≥44	≥52	≥35
SiO₂	≥54	≥55	≥47	≥49
ZrO₂	—	—	—	≥15
Color	White	White	White	White
Shot Content (%)	≤15	≤15	≤15	≤12
Density (kg/m³)	64	96	128	96
Tensile Strength (kPa)	30	50	70	50
Permanent Linear Shrinkage (%)	1000℃ x24h≤2.5	1000℃ x24h≤2.5	1200℃ x24h≤3.0	1350℃ x24h≤3.0
Thermal Conductivity (W/m-K)
200℃	0.07	0.06	0.06	0.06
400℃	0.12	0.11	0.10	0.11
600℃	0.20	0.19	0.18	0.19
800℃	0.30	0.23	0.20	0.23
1000℃	0.40	0.32	0.27	0.31

Carbon Felt Welding Blanket
The Carbon Felt Welding Blanket is a high-performance insulating material made from carbon fibers. Its unique composition provides excellent thermal protection while maintaining flexibility and durability. Designed to resist heat and sparks, this blanket is ideal for welding and other high-temperature applications. It can be folded, compressed, and encapsulated for modular use.

Features

Superior thermal resistance
High tensile strength
Lightweight and flexible
Low thermal conductivity
High impact resistance

Typical Applications

Welding operations
Fabrication workshops
Metal cutting processes
Heat shielding
Protective barriers against sparks

Description

Property	Standard Blanket	High-Performance Blanket
Classification Temperature (℃)	Up to 1000	Up to 1800
Chemical Composition (%)
Carbon Content (%)	≥95	≥95
Color	Black	Black
Density (kg/m³)	150	180
Tensile Strength (kPa)	80	120
Permanent Linear Shrinkage (%)	1000℃ x24h≤5.0	1000℃ x24h≤3.0
Thermal Conductivity (W/m-K)
200℃	0.15	0.12
400℃	0.20	0.18
600℃	0.25	0.22
800℃	0.30	0.27
1000℃	0.40	0.35

This format provides a clear overview of the Carbon Felt Welding Blanket, emphasizing its key features and applications.

Comprehensive comparison of Ceramic Fiber Blankets and Carbon Felt Welding Blankets, focusing on several key aspects: thermal resistance, applications, or other specific properties

1. Material Composition

Ceramic Fiber Blanket: Made from aluminosilicate fibers, often containing zirconia, which provides excellent heat resistance and insulation.
Carbon Felt Welding Blanket: Composed primarily of carbon fibers, which offer good thermal protection, but typically have a lower melting point compared to ceramic fibers.

2. Temperature Resistance

Ceramic Fiber Blanket: Can withstand temperatures ranging from 1,200°F to 2,300°F (650°C to 1,260°C), depending on the specific product.
Carbon Felt Welding Blanket: Generally resists temperatures up to about 1,800°F (1,000°C), making it suitable for less extreme applications.

3. Thermal Insulation Properties

Ceramic Fiber Blanket: Offers superior insulation, minimizing heat transfer, which is crucial in high-temperature applications.
Carbon Felt Welding Blanket: Provides decent insulation but is typically less effective than ceramic fibers at very high temperatures.

4. Weight and Flexibility

Ceramic Fiber Blanket: Lightweight and flexible, allowing for easy installation and handling.
Carbon Felt Welding Blanket: Also lightweight but may be slightly stiffer, depending on thickness and density.

5. Chemical Resistance

Ceramic Fiber Blanket: Good resistance to various chemicals but can be degraded by strong acids or bases.
Carbon Felt Welding Blanket: Generally resistant to many chemicals but can be affected by certain solvents or oxidizers.

6. Applications

Ceramic Fiber Blanket: Commonly used in kilns, furnaces, and high-temperature industrial processes, as well as insulation for aerospace applications.
Carbon Felt Welding Blanket: Primarily used in welding and fabrication settings, serving as a protective barrier against sparks and heat.

7. Cost

Ceramic Fiber Blanket: Generally more expensive due to its high-performance capabilities and material costs.
Carbon Felt Welding Blanket: Typically more affordable, making it a popular choice for less extreme conditions.

8. Durability and Lifespan

Ceramic Fiber Blanket: While durable, it can become brittle over time, especially in harsh environments.
Carbon Felt Welding Blanket: Generally has a longer lifespan in welding applications due to its ability to absorb impacts and resist wear.

9. Safety Considerations

Ceramic Fiber Blanket: May release fine particles if disturbed, which can be hazardous; proper handling and protective gear are recommended.
Carbon Felt Welding Blanket: Generally considered safer to handle, with fewer concerns about particle release.

Conclusion

Choosing between Ceramic Fiber Blankets and Carbon Felt Welding Blankets depends on the specific application, required temperature resistance, and budget. For high-temperature and insulation needs, ceramic fiber is superior, while carbon felt is effective for welding and moderate heat applications.