Extruded batts offer several advantages over solid plain batts when used as kiln furniture in high-temperature firing processes. These benefits primarily arise from their design and material properties, which improve thermal efficiency and load-bearing performance. Here’s why extruded batts are often preferred:
1. Lightweight Design
Extruded batts are designed with hollow sections or ribbed structures, making them lighter than solid plain batts of the same size. This reduced weight:
- The weight is reduced by 35-38% compared to solid batts while the loading capacity is greatly increased.
- Reduces fuel consumption since less energy is required to heat the kiln furniture.
- Simplifies handling and installation, improving operational efficiency.
2. Improved Heat Distribution
The open or ribbed structure of extruded batts enhances heat circulation within the kiln. This results in:
- More uniform temperature distribution during firing.
- Improved firing quality of the products, as they are less likely to encounter temperature differentials.
3. Energy Efficiency
The lower mass of extruded batts means they absorb and retain less heat compared to solid plain batts. This translates into:
- Lower at least 30% energy consumption, which reduces operational costs.
4. Reduced Warping Risk
The design of extruded batts often incorporates structural reinforcements, which help:
- The resistance to thermal shock also makes them suitable for fast firing in the kiln.
- Increase their durability and lifespan compared to solid plain batts.
5. Enhanced Load-Bearing Capacity
Despite being lighter, extruded batts can be engineered to provide excellent strength and rigidity. Their optimized geometry ensures:
- Consistent performance over multiple firing cycles.
Application Considerations:
- Extruded batts are particularly advantageous in kilns where rapid firing cycles or high production throughput is required.
- They are ideal for applications involving delicate or high-value items, as the uniform heat distribution minimizes defects.
- Application fields: Sanitary ware, crystallized glass panels, insulators, technical ceramics, etc.
In summary, extruded batts combine efficiency, performance, and cost-effectiveness, making them a superior choice for many modern kiln operations compared to traditional solid plain batts.
