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Alumina Ceramic Components For Thermocouple Protection Tubes And High-Temperature Furnace Plates In Industrial Heating

Categories Alumina Ceramic
Place of Origin: Made In China
Brand Name: Dayoo
MOQ: Negotiable
Price: Negotiable
Delivery Time: Negotiable
Payment Terms: Negotiable
Thermal Expansion Coefficient: 8.0 x 10^-6 /K
High Purity: 99.5% or higher
Materials: 92% alumina powder
Type: Alumina Ceramic Parts
Maximum Use Temperature: 1600°C
Flexural Strength: 350 MPa
Chemical Resistance: Excellent
Mechanical Strength: High
Thermal Shock Resistance: Excellent
Tensile Strength: 200 MPa
Wear Resistance: Excellent
Size: Customized
Dielectric Constant: 9.8
Precision Tolerance: High
Corrosion Resistance: Excellent
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Alumina Ceramic Components For Thermocouple Protection Tubes And High-Temperature Furnace Plates In Industrial Heating

Alumina Ceramic Components For Thermocouple Protection Tubes And High-Temperature Furnace Plates In Industrial Heating


Product Introduction

The alumina ceramic base is a high-purity aluminum oxide (Al₂O₃) ceramic component known for its excellent high-temperature resistance, corrosion resistance, electrical insulation, and mechanical strength. It is widely used in electronics, semiconductors, lasers, power systems, and chemical industries as a critical support or insulating element.

Key Applications

  • Electronic Packaging: Used as a heat dissipation and insulating substrate for high-power LEDs and integrated circuits.

  • Semiconductor Equipment: Functions as a wafer carrier or vacuum chamber component.

  • Laser Devices: Supports laser crystals or optical mirrors to ensure stability.

  • Industrial Heating: Serves as a high-temperature furnace plate or thermocouple protection tube.

Product Advantages

High-Temperature Resistance: Can withstand temperatures up to 1600°C.
Excellent Insulation: Volume resistivity > 10¹⁴ Ω·cm.
Corrosion Resistance: Resistant to strong acids and alkalis (except hydrofluoric acid).
Low Thermal Expansion: Coefficient of thermal expansion (7.2×10⁻⁶/°C) matches most metals.

Specifications Table

ParameterSpecification
Material99% Al₂O₃
Density3.8 g/cm³
Flexural Strength300-400 MPa
Dielectric Constant9.8 (1MHz)
Surface RoughnessRa ≤0.2μm (customizable)

Manufacturing Process

  1. Powder Preparation: Mixing high-purity alumina powder with binders.

  2. Forming: Dry pressing/isostatic pressing/injection molding.

  3. Sintering: High-temperature densification at 1600-1800°C.

  4. Precision Machining: CNC grinding/laser cutting to required dimensions.

  5. Inspection: X-ray flaw detection, insulation strength testing.

Usage Instructions

⚠️ Precautions:

  • Avoid strong mechanical impacts to prevent brittle fracture.

  • Not suitable for hydrofluoric acid environments; recommended for pH 3-11 chemical conditions.

  • Use flexible gaskets to buffer stress during installation.

After-Sales Service

  • 12-month warranty, free replacement for non-human damage.

  • 24/7 technical support team.

  • Customizable dimensions and performance optimization available.

FAQ

Q: Can complex shapes be machined?
A: Yes, CNC precision machining is supported, with a minimum hole diameter ≥0.5mm.

Q: What is the thermal conductivity?
A: Thermal conductivity is approximately 30 W/(m·K), better than standard stainless steel.

Q: Can it be metal-coated?
A: Yes, molybdenum-manganese metallization or magnetron sputtering is available.



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