Unlocking Mass Production for Copper/Diamond Composites: How Ruideer's 10MPa Furnace Redefines Thermal Management
The Industry Bottleneck: Performance vs. Scalability
In the rapidly evolving worlds of 5G telecommunications, high-power lasers, and EV power electronics, thermal management is no longer just a detail—it is the limiting factor.
Copper/Diamond (Cu/Diamond) composites have emerged as the ultimate solution, offering thermal conductivities of 600-900 W/m·K. However, manufacturers have long struggled with two critical barriers:
- The "Wettability" Challenge: Forcing copper into the non-wetting diamond skeleton usually requires expensive coatings or extreme processing conditions.
- The "Cost" Challenge: Traditional Vacuum Hot Pressing (VHP) is limited to small batches, making the cost per part too high for mass commercial adoption.
The Solution: Ruideer RDE-5512-10MPa
Ruideer is proud to announce the successful industrial deployment of our RDE-5512-10MPa Gas Pressure Sintering Furnace. Designed specifically for high-end metal matrix composites, this system has empowered our clients to achieve ton-scale mass production of Cu/Diamond heat sinks using advanced "Canning + Gas Pressure Infiltration" technology.
Why Top Manufacturers Choose the RDE-5512-10MPa
1. Overcoming Wettability with 100-Bar Power
While standard sintering often leaves porosity, the RDE-5512 offers a massive design pressure of 100 bar (10 MPa). In the liquid-phase infiltration process (typically around 1240°C), the furnace acts as a giant isostatic press. It uses high-pressure inert gas to mechanically force liquid copper into the nano-scale voids of the diamond matrix.
Near-theoretical density and exceptional hermeticity, ensuring consistent thermal performance even without complex diamond surface pre-treatments.
2. The "Golden Size" for Mass Production
Moving away from the size limitations of traditional hot pressing molds, the RDE-5512 features a large effective hot zone of 500mm (W) × 500mm (H) × 1200mm (L). With a load capacity of up to 1000kg, manufacturers can stack hundreds of components in a single run.
This "High-Volume, High-Pressure" approach reduces energy consumption per unit and significantly lowers manufacturing costs.
3. Precision Control at the Solidification Point
The quality of Cu/Diamond is defined during the copper solidification phase (~1085°C). Uneven cooling at this stage leads to shrinkage voids and component failure. Ruideer employs a Multi-Zone Temperature Control System, ensuring exceptional uniformity of ≤ ±5°C throughout the 1200mm length of the hot zone.
Uniform crystallization across the entire batch, maximizing yield rates for high-value components.
4. Efficiency Through Rapid Cooling
To meet the demands of industrial production, the system is equipped with a High-Pressure Rapid Cooling System. It can cool a full load from 1450°C to safe handling temperatures in 8-10 hours.
Faster turnover cycles, allowing for a reliable "one-batch-per-day" production schedule.
Technical Specifications at a Glance
| Feature |
Specification |
| Model |
RDE-5512-10MPa |
| Effective Hot Zone |
500mm × 500mm × 1200mm |
| Max. Design Pressure |
100 bar (10 MPa) |
| Max. Temperature |
1550 °C (Vacuum & Pressure modes) |
| Temp. Uniformity |
≤ ±5°C (Multi-zone Control) |
| Vacuum Level |
1 × 10⁻³ Pa /1 × 10⁻5 mbar |
| Load Capacity |
1000kg (Max) |
The Ruideer RDE-5512-10MPa is more than just a furnace; it is a proven platform for scaling up next-generation thermal materials. Whether for Pressure Infiltration or Sinter-HIP processes, Ruideer provides the robust technology needed to compete in the semiconductor and defense markets.
Contact our engineering team today to discuss your Cu/Diamond sintering requirements.
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