Customizable Alumina Long Light Plate – High Flatness Precision Ceramic Substrate

Alumina long light plate is a precision ceramic plate manufactured from high-purity alumina (Al₂O₃ content ≥99%) through advanced forming processes including dry pressing or isostatic pressing, followed by high-temperature sintering. The surface undergoes precision grinding and polishing to achieve a mirror-like glossy finish. Characterized by exceptional hardness, density, and dimensional stability, this product can be customized in various lengths, widths, and thicknesses to meet specific application requirements. It is extensively used in high-precision manufacturing sectors including semiconductor equipment, laser devices, and medical instruments.

• Ultra-High Hardness, Wear and Scratch Resistant: Alumina ceramic hardness reaches HRA 84-92, Mohs hardness 9, second only to diamond. The polished surface is dense and smooth, resistant to scratches during long-term use.
• Mirror Finish, Consistent Flatness: Precision grinding and polishing achieve surface roughness Ra ≤ 0.1μm with high flatness meeting strict equipment requirements.
• Size Customization, Flexible Matching: Customizable according to drawings with lengths up to 1650mm and thickness from 1mm to 240mm.
• Insulation and Voltage Resistance, Stable Performance: Excellent electrical insulation properties, high withstand voltage, and volume resistivity suitable for high-voltage environments.
• Temperature and Corrosion Resistant, Strong Adaptability: Stable performance in high-temperature environments, resistant to acids and alkalis (except hydrofluoric acid).
• Good Rigidity, Not Easily Deformed: High elastic modulus, flexural strength up to 300-350MPa, strong load-bearing capacity with shape stability.

1. Powder Preparation: Selection of high-purity alumina powder with sintering aids, processed through ball milling and spray granulation.
2. Forming: Dry pressing or isostatic pressing based on customized dimensions to ensure uniform green body density.
3. High-Temperature Sintering: Atmosphere sintering in high-temperature kilns up to 1600℃ for densification and mechanical properties.
4. Precision Grinding: Surface grinding for rough and fine grinding to control thickness tolerance and flatness.
5. Mirror Polishing: Multiple polishing processes to achieve mirror finish with required roughness.
6. Dimension Finishing: Precision machining including cutting, hole opening, chamfering per customer drawings.
7. Quality Inspection: Comprehensive dimensional measurement, flatness inspection, and appearance checking.

• Customization Service: Full-process customization from drawings to finished products with free technical consultation.
• Warranty Commitment: 12-month warranty from delivery date with free repair or replacement for quality issues.
• Technical Support: 7x24 hour professional technical team assistance.
• Fast Delivery: Standard specifications in stock, customized products delivered per contract cycle.