Melting and casting alpha bricks

Fused α bricks are manufactured using high-purity alumina raw materials through a specialized electric melting process. Their unique α-alumina crystal structure endows the product with exceptional performance characteristics:

Extremely high refractoriness: The α-alumina crystal structure ensures outstanding stability under ultra-high temperature conditions。

Superior thermal shock resistance: Unique thermal expansion properties enable it to withstand abrupt temperature changes without cracking。

Outstanding erosion resistance: Highly resistant to alkaline vapors, glass volatiles, and chemical corrosion。

Extremely low porosity: Dense microstructure effectively blocks penetration by corrosive media。

Low thermal conductivity: Provides excellent insulation properties, minimizing heat loss。

Typical Physical and Chemical Properties:

Al₂O₃ Content: ≥94%

Bulk Density: ≥3.25 g/cm³

Apparent Porosity: ≤3%

Room Temperature Compressive Strength: ≥180 MPa

Refractoriness: ≥1850°C

Maximum Service Temperature: ≥1750°C

Cast α bricks are widely used in the following high-temperature industrial sectors:

1. Critical areas of glass melting furnaces: High-temperature zones such as large arches, breast walls, front walls, and small furnace stacks。

2. Specialty glass furnaces: High-quality glass melting furnaces for electronic glass, optical glass, pharmaceutical glass, etc。

3. Ceramic industry: Lining for sintering kilns of high-end sanitaryware and technical ceramics。

4. Chemical industry: High-temperature equipment such as petroleum catalytic cracking units and chemical reactors。

5. Electronic materials: Lining for sintering furnaces of semiconductor materials and firing kilns of electronic ceramics。

6. Research institutes: High-temperature experimental furnaces and specialized material research equipment。

Zhengzhou Chaoyu Refractories Co., Ltd. provides customers with comprehensive product services:

Professional Technical Support: Offering full-process technical services including kiln design, material selection, and installation guidance。

Customized Production: Providing products with personalized dimensions and performance tailored to specific operational requirements。

Strict Quality Control: Implementing ISO9001 quality management systems, with products meeting international standards such as ASTM and JIS。

Comprehensive After-Sales System: Providing kiln maintenance, technical consultation, and emergency response services。

Global Supply Network: Established international logistics system supporting worldwide product delivery。

R&D Innovation Support: Continuous optimization of product performance and development of new application fields。

For detailed information on Cast Alpha Bricks or to request product samples, please contact us via our official website or International Trade Department. Our professional technical team will provide comprehensive solutions and premium service support。