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Fused-Cast-RTK-9510-Zirconia-Block.jpg

High Purity Fused Cast Zirconia Block RTK-Z910 from China Suppliers - Ideal for Glass Furnace Applications

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Introducing our premium raw material: high purity zirconia. With a melting temperature exceeding 2800℃, this exceptional material features a crystal phase composition of Baddeleyite. Renowned for its outstanding performance characteristics, our zirconia boasts extremely high corrosion resistance and a low foaming rate, effectively preventing contamination of molten glass.

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Our RTK-Z9510 fused cast zirconia block, containing zirconium content greater than 93%, is ideal for a variety of glass furnace applications. As a leading China supplier and factory, we cater to high-quality and specialized glass furnaces, including liquid crystal substrate glass furnaces, high alumina glass furnaces, borosilicate glass furnaces, halogen lighting glass furnaces, glass ceramic furnaces, and glass fiber furnaces. Choose us for superior zirconia solutions tailored to meet your glass manufacturing needs.

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    Product Detail

    Brief Introduction

    Fused cast zirconia blocks are high zirconia refractories made by melting high purity raw materials through special casting process. The series of molten high zirconium bricks mainly includes RTK-Z9540 (zirconium content >89%) and RTK-Z9510 (zirconium content >93%) RTK-Z9510 Mineral composition: ZrO₂(93.6%), SiO₂(5.3%), Na₂O (0.05%).

    The crystalline structure of fused cast zirconia blocks is mainly composed of baddeleyite, so it has extremely high corrosion resistance, low foaming rate characteristics, these advantages can prevent the contamination of the molten glass.

    Zirconia refractory products are produced with PLC programmed special electric furnace and special material incubator. During casting, the shrinkage cavity block is obtained after molding. This casting method is generally used for cast zirconia block products.

    We Reftech have passed ISO9001, ISO14001, and ISO45001 management system certification. At the same time, our company has established an intelligent management platform to conduct digital collection and analysis of the production process from raw materials to finished products, and have steadily improved the quality stability and traceability of products.

    We establish a standardized, independent and efficient quality assurance system according to the requirements of modern enterprises. We rely on advanced analytical instruments and testing equipment to monitor the whole process of products, provide scientific and effective theoretical data for production, and provide users with high-level quality supervision services.

    Chemical Composition
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    CHEMICAL COMPOSITION AND MINERAL COMPOSITION
    Chemical Composition (%) ZrO₂ 93.5
    SiO₂ 4.8
    Al₂O₃ 0.8
    Na₂O 0.4
    Others 0.5
    Mineral Composition (%) Baddeleyite 94
    Vitreous Phase 6
    Physical Property
    PHYSICAL PROPERTY
    Normal temperature compressive strength (Mpa) 600
    Bulk density (g/cm³) 5.2
    Apparent porosity (%) ≤1.0
    Corrosion resistance of molten glass at three-phase interface mm/24h ≤0.8
    Exudation amount of vitreous phase ≤0.4
    Thermal conductivity W/(mk)
    • At 600°C
    • At 1000°C
    3.0
    2.8
    Resistivity (Ω·m)
    • At 1500°C
    • At 1600°C
    0.6
    0.4
    Coefficient of thermal expansion
    • At 1000°C
    • At 1500°C
    0.7
    0.20
    Frequently Asked Questions
    Q What raw materials are used to manufacture fused cast zirconia blocks?
    Fused cast zirconia blocks are high zirconia refractories made by melting high purity raw materials through a specialized casting process.
    Q What is the difference between RTK-Z9540 and RTK-Z9510?
    RTK-Z9540 has a zirconium content exceeding 89%, while RTK-Z9510 contains a higher zirconium content of more than 93% (typically around 93.6% ZrO₂).
    Q Why do these blocks prevent glass contamination?
    Because their crystalline structure is primarily composed of baddeleyite, they offer exceptionally high corrosion resistance and low foaming rates, preventing contamination of molten glass.
    Q What quality certifications does Reftech possess?
    Reftech has successfully passed ISO9001 quality management, ISO14001 environmental management, and ISO45001 occupational health and safety management system certifications.
    Q How does Reftech guarantee product quality and stability?
    Reftech operates an intelligent management platform for digital data collection and analysis from raw materials to finished products, ensuring reliable product stability, quality supervision, and complete traceability.

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