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

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.