Material selection and sizing of Kiln Furniture

Kiln Furniture is an essential material in the production of ceramic products and has a direct impact on the energy consumption and quality of ceramic products. Efficiency is greatly improved. The shape of Kiln Furniture is generally complex, the production is exquisite, and the damage mechanism is in various forms. Therefore, the working life of Kiln Furniture is not only closely related to the material and performance of the Kiln Furniture, but also has a direct relationship with Kiln Furniture's shape, material collocation, and experience in use.

The following is a list of contents:

• Selection and matching of Kiln Furniture materials

• Determination of Kiln Furniture size

Selection and matching of Kiln Furniture materials

In recent years, with the rapid development of my country's economy, the Kiln Furniture industry has also made great progress, and high-quality Kiln Furniture with lightweight, thin, and diversified specifications has been supplied to the market one after another. There are cordierite, cordierite-mullite, mullite, ordinary silicon carbide, oxide-bonded silicon carbide, silicon nitride-bonded silicon carbide, and silicon oxynitride-bonded silicon carbide, reactive sintered carbide Silicon, recrystallized silicon carbide, etc. There are various forms of material matching, but it should also be determined according to the product type of the ceramic factory, the structure of the kiln, the bearing capacity, and the ability to bear the price. But from a technical point of view, the following principles should be followed:

1. First, the use temperature should meet the requirements. Cordierite, cordierite-mullite, ordinary silicon carbide, the safe use temperature is below 1250 ℃; oxide-bonded silicon carbide, reaction sintered silicon carbide, the safe use temperature below 1350 ℃; nitrogen silicon carbide combined with silicon carbide, mullite, silicon oxynitride combined with silicon carbide, the safe use temperature is below 1500 °C; recrystallized silicon carbide is safe below 1650 °C

   
   

2. Kiln Furniture can use cordierite for parts with no or small bending stress.

   
   

3. Mullite and ordinary silicon carbide are generally used as supporting parts.

   
   

4. Generally, cordierite-mullite, oxide-bonded silicon carbide, silicon nitride-bonded silicon carbide, silicon oxynitride-bonded silicon carbide, etc.

   
   

5. Structural components subject to large bending stress should generally use reactive sintered silicon carbide, recrystallized silicon carbide, and silicon nitride combined with silicon carbide Kiln Furniture materials.

Determination of Kiln Furniture size

The smaller the size of Kiln Furniture, the better to meet the requirements of the use conditions of ceramic products. For example, the shed board should be as thin as possible, and the cross-beam section should be as small as possible. The general election follows the following 2 points:

1. Determined by experience. General professional Kiln Furniture company and ceramic factory kiln engineers have rich practical experience, just provide the necessary parameters for use.

   
   

2. Apply the corresponding formula in the mechanics of materials for accurate calculation, and then consider a certain safety factor.

The above is about the selection of materials and size determination of Kiln Furniture. If you are interested in Kiln Furniture, you can contact us. Our website is https://www.yufengrefractory.com/.