Leave Your Message
Products Categories
Featured Products
Fused Cast 33 ＃ AZS Block (RTK-AZS33)

Fused Cast 33 ＃ AZS Block (RTK-AZS33)
Fused Cast α-β-Alumina Block(RTK-M)

Fused Cast α-β-Alumina Block(RTK-M)
Fused Cast Zirconia Block (RTK-Z910)

Fused Cast Zirconia Block (RTK-Z910)
RTK-High Quality Monolithic Refractory

RTK-High Quality Monolithic Refractory
Fused Cast Mullite Block (RTK-FM/ZM)

Fused Cast Mullite Block (RTK-FM/ZM)
Fused Cast Zirconia Block (RTK-Z9540)

Fused Cast Zirconia Block (RTK-Z9540)
Fused Cast 41＃AZS Block ( RTK-AZS41)

Fused Cast 41＃AZS Block ( RTK-AZS41)
Fused Cast 36 ＃ AZS Block(RTK-AZS36)

Fused Cast 36 ＃ AZS Block(RTK-AZS36)
Fused Cast β-Alumina Block (RTK-H)

Fused Cast β-Alumina Block (RTK-H)
Fused Cast α- Alumina Block (RTK-A)

Fused Cast α- Alumina Block (RTK-A)
0102030405
Fused-Cast-Zirconia-Block-(RTK-Z9540).jpg

High Purity Fused Cast Zirconia Block RTK-Z9540 from China Suppliers - Ideal for Glass Furnace Applications

Introducing our high-purity zirconia block, specifically the RTK-Z9510, featuring a zirconium content of over 89%. This premium product is expertly crafted from high-purity zirconia, ensuring a melting temperature exceeding 2800℃. The crystal phase composition of Baddeleyite provides exceptional performance characteristics, including outstanding corrosion resistance and a low foaming rate. These features effectively prevent the contamination of molten glass, making it an ideal choice for glass production, As a leading manufacturer and suppliers in China, our fused cast zirconia blocks are designed for wide-ranging applications in glass furnaces. They are particularly well-suited for high-quality and specialized glass production, including liquid crystal substrate glass furnaces, high alumina glass furnaces, borosilicate glass furnaces, halogen lighting glass furnaces, glass ceramic furnaces, and glass fiber furnaces. Trust our factory to provide you with the best materials for your glass manufacturing needs
    Contact us
    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-Z9540 Mineral composition: ZrO₂ (89%), SiO₂ (9%), Na₂O (0.05%)

    The crystalline structure of fused cast zirconia blocks is mainly composed of baddeleyite, so it has extremely high corrosion resistance and low foaming rate characteristics. These advantages effectively 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.

    Fused cast high zirconium brick is one of our four core products. The main physical and chemical indexes of high zirconium brick series products produced by Reftech have reached the level of international mainstream suppliers, and the quality of products can be fully guaranteed.

    Widely Used In:
    • Liquid crystal substrate glass furnaces
    • High alumina glass furnaces
    • Borosilicate glass furnaces
    • Halogen lighting glass furnaces
    • Glass ceramic & glass fiber furnaces
    Chemical Composition
    RTK-Z9540-2
    RTK-Z9540-1
    Chemical Composition and Mineral Composition
    Composition Type Value (%)
    Chemical Composition (%) ZrO₂ 89.0
    SiO₂ 9.1
    Al₂O₃ 1.5
    Na₂O 0.1
    Others 0.3
    Mineral Composition
    Mineral Composition (%) Baddeleyite 88
    Vitreous Phase 12
    Physical Property
    Physical Property
    Normal temperature compressive strength (Mpa) 600
    Bulk density (g/cm³) 5
    Apparent porosity (%) ≤1
    Corrosion resistance of molten glass at three-phase interface (mm/24h) ≤0.8
    Exudation amount of vitreous phase ≤0.4
    Thermal conductivity W/(m·k)
    At 600°C
    At 1000°C

    3.0
    2.8
    Resistivity (Ω·m)
    At 1500°C
    At 1600°C

    5.0
    2.4
    Coefficient of thermal expansion
    At 1000°C
    At 1500°C

    0.65
    0.10
    Frequently Asked Questions
    What are fused cast zirconia blocks?
    Fused cast zirconia blocks are high zirconia refractories made by melting high purity raw materials through a special casting process. They are primarily used in high-temperature glass melting furnaces.
    What is the difference between RTK-Z9540 and RTK-Z9510?
    RTK-Z9540 has a zirconium content of greater than 89% (with approximately 89% ZrO₂, 9.1% SiO₂, and 1.5% Al₂O₃), while RTK-Z9510 features a higher zirconium content of greater than 93%.
    Why do fused cast zirconia blocks have excellent corrosion resistance?
    Their crystalline structure is mainly composed of baddeleyite. This structure provides extremely high corrosion resistance and low foaming rates, which effectively prevents the contamination of the molten glass.
    In which types of glass furnaces are these blocks applied?
    They are widely used in high-quality and special 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.
    How is the quality of Reftech's high zirconium bricks guaranteed?
    Zirconia refractory products are produced using PLC programmed special electric furnaces and specialized material incubators. The physical and chemical indexes of Reftech's high zirconium brick series have reached the level of international mainstream suppliers, fully ensuring high-quality standards.

    Leave Your Message