Graphite Boat for Ceramic Sintering Furnace
Product Overview
Jincheng graphite boats are high-purity graphite containers designed for holding ceramic powder, electronic materials, and small components during high-temperature sintering and heat treatment processes. These boats provide excellent thermal uniformity and chemical inertness for reliable material processing.
Our graphite boats are available in standard rectangular shapes as well as custom geometries tailored to your furnace dimensions and material handling requirements. Various graphite grades are available depending on temperature atmosphere and contamination limits.
Key Features
- High purity graphite ensures no contamination of sintered materials
- Excellent thermal conductivity for uniform heating of contents
- High temperature resistance up to 3000°C in vacuum or inert atmosphere
- Good thermal shock resistance withstands rapid heating and cooling
- Corrosion resistance to most ceramic and metal powders
- Machinable to custom dimensions for specific furnace sizes
- Smooth inner surfaces for easy material removal and cleaning
- Long service life with proper use and atmosphere control
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High purity isostatic graphite |
| Density | 1.70 - 1.85 g/cm3 |
| Ash Content | < 500 ppm |
| Max Working Temperature | 3000°C (vacuum/inert) |
| Standard Shape | Rectangular boat / crucible |
| Length Range | 50 - 500 mm |
| Width Range | 30 - 200 mm |
| Height Range | 20 - 100 mm |
| Wall Thickness | 3 - 10 mm |
| Flatness Tolerance | ±0.1 mm |
Applications
- Ceramic powder sintering for alumina, zirconia, and silicon carbide
- Electronic materials processing for ferrite and piezoelectric ceramics
- Powder metallurgy for small batch metal powder sintering
- Battery material research for cathode and anode material testing
- Glass melting and forming for small batch glass production
- University and research labs for high-temperature material experiments
Why Choose Jincheng Graphite Boats?
- Multiple graphite grades to match different temperature and purity requirements
- Custom dimensions - we manufacture to your furnace drawings
- Precision machining with tight tolerances for consistent furnace loading
- High purity options for semiconductor and electronic grade materials
- Competitive pricing as a direct graphite component manufacturer
- Fast delivery - standard sizes in stock, custom orders within 2 weeks
- Material certification provided with every order
- Global shipping to ceramic, electronics, and research customers worldwide
Frequently Asked Questions
Q1: Can graphite boats be used in air atmosphere?
A: Graphite oxidizes in air above 450°C. They should be used in vacuum, inert atmosphere (argon, nitrogen), or reducing atmosphere for high-temperature applications.
Q2: What is the typical service life of a graphite boat?
A: Under proper vacuum/inert atmosphere operation, graphite boats typically last for 50-200 sintering cycles, depending on temperature, atmosphere, and material being processed.
Q3: Can you make boats with special shapes or multiple compartments?
A: Yes, we can manufacture custom-shaped boats including multi-compartment boats, stepped boats, and boats with specific features based on your drawings.
Q4: How do I clean a graphite boat after use?
A: Allow to cool completely, then remove sintered material gently. Light residue can be sandblasted or machined off. Avoid water or aggressive chemicals.
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