CFC Hot Press Mold Cylinder | C/C Composite Hot Press Mold
High-strength carbon/carbon (C/C) composite hot press molds for advanced sintering, hot pressing, and high-temperature forming applications.
Specifications of CFC Hot Press Mold Cylinder / CarbonCarbon Composite
Our CFC hot press molds are engineered with a 3D braided continuous carbon fiber filament structure, providing exceptional circumferential load capacity and thermal stability. Mold design provided based on your pressure and work environment requirements.
All values are typical and subject to variation. For technical data sheets or custom recommendations, please contact Max Graphite.
Size Range of CFC Hot Press Mold Cylinder (C/C Composite)
Precision machining available, Custom sizes and shapes manufactured upon request.
All values are typical and subject to variation. For technical data sheets or custom recommendations, please contact Max Graphite.
Applications of CFC Hot Press Mold Cylinder
CFC hot press molds are essential in high-temperature, high-pressure processes where metal molds fail due to thermal expansion, oxidation, or low strength.
- Powder Metallurgy: Hot pressing of metal powders, cemented carbides, and refractory metals
- Ceramics & Hard Materials: Sintering of SiC, Si₃N₄, B₄C, AlN, and other advanced ceramics
- Diamond Tools: Hot pressing of diamond segments and grinding wheels
- Aerospace & Defense: Hot pressing of ceramic matrix composites (CMCs)
Operates at up to 2400°C under inert or vacuum atmosphere.
Production Process of CFC Hot Press Mold Cylinder
Our manufacturing process ensures uniform density, high thermal conductivity, and long service life.
- Fiber Preform: 3D braided or filament wound continuous carbon fiber to achieve high circumferential strength
- Densification: Chemical Vapor Infiltration (CVI) + multiple cycles of resin/pitch impregnation and carbonization
- Heat Treatment: Graphitization at 2200°C – 2400°C to optimize thermal and mechanical properties
- Machining: Precision CNC turning/milling to final dimensions, including inner bore, outer diameter, and end faces
- Quality Control: Density measurement, dimensional inspection, X-ray for internal defects, and thermal expansion testing
Monolithic structure with neat fiber ends on end faces – no delamination, no weak interfaces.
What is a CFC Hot Press Mold Cylinder?
A CFC (Carbon Carbon Composite) hot press mold cylinder is a high-performance tooling component made from:
- Reinforcement: Continuous carbon fiber filaments (3D braided or wound)
- Matrix: Pyrolytic carbon from CVI plus carbon from resin/pitch pyrolysis
- Final treatment: High-temperature graphitization
Unlike graphite molds, CFC hot press molds offer:
- Higher strength (compressive ≥200 MPa)
- Higher thermal conductivity (≥60 W/m·K circumferentially)
- Better thermal shock resistance
- Longer tool life under cyclic high-temperature and high-pressure loads
CFC molds are reusable and maintain dimensional stability over hundreds of cycles.
Key Properties of CFC Hot Press Mold Cylinder
- 3D braided continuous fiber: No delamination; high circumferential load capacity
- High circumferential thermal conductivity (≥60 W/m·K): Fast, uniform heat transfer to workpiece
- High compressive strength (≥200 MPa): Withstands extreme pressing forces
- Low thermal expansion (≤4.5 mm @2400°C): Maintains dimensional accuracy at high temperatures
- Monolithic structure: No joints or seams – eliminates weak points
- 2200°C graphitization: Low outgassing, high purity, stable performance
- Customizable geometry: Any length, diameter, or thickness up to 1300 mm
Suitable for vacuum hot pressing and inert atmosphere furnaces.
