Product Overview
The graphite cover is a high-temperature-resistant, corrosion-resistant sealing or protective component made from high-purity graphite. It is widely used in high-temperature furnaces, semiconductor equipment, chemical reactors, vacuum systems, and new energy batteries. Graphite offers excellent thermal conductivity, chemical stability, and high-temperature strength, making it an ideal choice for extreme environments.
Key Features
✅ High-Temperature Resistance: Withstands up to 3000°C in inert or vacuum environments (requires anti-oxidation coating in air).
✅ Corrosion Resistance: Excellent resistance to acids, alkalis, and most chemical reagents.
✅ High Thermal Conductivity: Ensures uniform heat distribution, suitable for high-temperature processes (e.g., crystal growth, sintering).
✅ Low Thermal Expansion: Maintains dimensional stability under extreme heat.
✅ Self-Lubricating: Reduces friction, ideal for dynamic seals or sliding parts.
✅ Lightweight: Lighter than metal, suitable for precision equipment.
Applications
1,High-Temperature Industrial Furnaces
Used as furnace covers or thermal shields in vacuum sintering furnaces, carbonization furnaces, and graphitization furnaces.
2,Semiconductor & Solar Industry
Crucible covers for monocrystalline silicon growth (Czochralski method).
Evaporation source covers in vacuum coating systems.
3,Chemical & Metallurgical Processing
Corrosion-resistant sealing covers for reactors and electrolytic cells.
4,New Energy Batteries
Molds or encapsulation components for lithium-ion battery anode materials.
Sealing structures for fuel cell bipolar plates.
5,Research & Laboratory Equipment
Sealing covers for vacuum systems and high-temperature experimental setups.
Specifications
|
Parameter |
Standard Specs (Customizable) |
|
Material |
High-purity graphite (≥99.9%), Isostatic graphite |
|
Temperature Range |
≤3000°C (inert/vacuum), ≤500°C (in air, with coating) |
|
Density |
1.6~1.9 g/cm³ |
|
Compressive Strength |
20~100 MPa (varies by grade) |
|
Machining |
CNC precision machining (turning, drilling, milling) |
|
Surface Treatment |
Anti-oxidation coating, metallization (optional) |
|
Size Range |
Diameter: 10mm~1000mm (custom sizes available) |
Optional Features
Threaded/Flanged Design: For easy installation and sealing.
Embedded Thermocouple Holes: For temperature monitoring.
Multi-Layer Composite: Graphite + metal reinforcement.
Anti-Oxidation Coating: Extends service life in oxidative environments.
Why Choose Our Graphite Covers?
✔ Precision Machining: CNC-controlled tolerances (±0.05mm).
✔ Material Variety: Multiple graphite grades (e.g., ISO-63, HPG-50).
✔ Fast Delivery: Supports prototyping and bulk orders.
✔ Technical Support: Custom solutions for high-temperature applications.
Notes
⚠ Avoid Mechanical Shock: Graphite is brittle-handle with care.
⚠ Oxidation Limitation: For use in air, limit to ≤500°C or apply protective coatings.
For technical drawings or custom requirements, contact us with your specifications!