Frit Furnace Crucible Dense Zirconia Corundum

Dense Zirconia-Corundum Crucible for Frit Furnaces

This dense zirconia-corundum crucible for frit furnaces is a specialized refractory vessel manufactured through high-temperature, dense sintering using high-purity alumina, zirconia, and silica as primary raw materials. The product features excellent high-temperature performance, resistência ao choque térmico, and resistance to corrosion by molten glass. It is specifically designed for glass melting operations—such as those in frit furnaces—and is suitable for high-temperature melting processes involving ceramic frits, glass glazes, and similar materials.

Recursos do produto

1. High Zirconia Content; Strong Corrosion Resistance

With a ZrO₂ content of 41.058% combined with 44.089% Al₂O₃, the material forms a dense zirconia-corundum structure. It offers excellent chemical corrosion resistance against high-temperature melts—such as molten glass and frit—effectively extending the crucible’s service life.

2. Dense Structure; Excellent Thermal Shock Resistance

Produced via a high-temperature densification sintering process, the material features a dense structure and low porosity. It exhibits superior thermal shock resistance, enabling it to withstand the frequent temperature fluctuations of frit furnaces without cracking.

3. Low Impurity Content; No Contamination of Melt

With Fe₂O₃ and TiO₂ contents of only 0.049% e 0.073% respectively, the material contains minimal harmful impurities. It does not react with frit or glaze at high temperatures, effectively ensuring the purity of the melted material.

4. Stable High-Temperature Performance

The zirconia-corundum material maintains structural stability and resists deformation at high temperatures. It withstands erosion by molten glass, making it suitable for the continuous, long-term operation of frit furnaces.

Áreas de aplicação

• Ceramic Frit Melting: Used for melting and holding ceramic frit in frit furnaces.
• Glass Glaze Melting: Suitable for high-temperature melting processes involving glass glazes, pigments, and similar materials.
• Specialty Glass Industry: Used as a melting vessel for optical glass and specialty glass.
• Non-ferrous Metal Smelting: Suitable for high-temperature smelting applications requiring superior corrosion resistance.

perfil de companhia

Uma empresa profissional especializada em serviços de tecnologia de tratamento térmico e R&D, fabricação, e vendas de fornos elétricos de alta temperatura.

A empresa se concentra no desenvolvimento de fornos elétricos de alta temperatura cobrindo uma faixa completa de temperatura de -100°C a 2600°C. Seus produtos incluem fornos elétricos experimentais, fornos de atmosfera a vácuo, fornos industriais, e equipamentos de aquecimento por indução de média frequência. Os principais produtos incluem fornos de caixa, fornos tubulares, fornos de elevação, fornos empurradores, fornos de bogie, fornos rotativos, fornos de túnel, e vários fornos especializados de média frequência.

A empresa adere à inovação tecnológica e obteve as certificações ISO9001 e CE da UE. Ele possui 21 marcas registradas, 29 patentes, e 27 direitos autorais de software.

Métodos de pagamento

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Métodos de envio

The electric furnace is packaged in thThe electric furnace is packaged in three layers: primeiro embrulhado em papel de espuma, depois embrulhado em filme plástico, and finally packed in a wooden crat.

Perguntas frequentes (Perguntas frequentes)

1. What are the main advantages of dense zirconia-corundum crucibles?

The primary advantages are excellent corrosion resistance—derived from high zirconia content—and good thermal shock resistance due to the material’s dense structure. Additionally, the extremely low impurity content ensures no contamination of the melt, making them suitable for the long-term, high-temperature operation of frit furnaces.

2. What is the applicable temperature range for these crucibles?

The dense zirconia-corundum material can withstand temperatures exceeding 1600°C. Specific operating temperatures can be determined based on the customer’s process conditions; we recommend consulting a sales engineer.

3. Can the products be customized to specific dimensions?

Sim. Crucibles can be customized in various shapes and sizes based on the customer’s frit furnace model, capacity, and process requirements.

4. Will the crucible affect the color or properties of the frit or glaze?

Não. The product has extremely low levels of impurities such as Fe₂O₃ and TiO₂ and exhibits excellent chemical stability at high temperatures. It does not react with the melt, effectively ensuring the purity and color quality of the molten material.

5. How can the service life of the crucible be extended?

It is recommended to raise and lower the temperature slowly in accordance with operating procedures to avoid rapid heating or cooling. Do not strike the bottom of the crucible when charging materials; periodically inspect the inner walls for corrosion and replace the crucible in a timely manner.