Hot Presses and Spark Plasma Sinter Technology

Components made for very harsh environments require very special processes to make them. With sintering equipment such as “Hot Presses” or “Spark Plasma Sintering Machines” components with high-end material properties required to meet demanding applications can become manufacture.

Typical material systems for Spark Plasma Sinter Technology:

Metals: W, Mo, Cr, Ru, Si, Cu, Cu (+W / Cr)
Intermetallics: TiAl, Ni₃Al, PbTe, SmCo5
Carbides: WC, B4C, SiC, TiC, ZrC
Nitrides: AlN, TiN, Si3N4 (+TiN), hBN (+TiB₂)
MMC / CMC: Al / Ti (+ SiC / Al₂O3), Steel (+ TiC/N), Co / Cr / Pt (+ Oxides)
Cutting Tools: WC-Co/Ni/Steel (+cBN, +Diam.), Al2O₃-Ti(C,N)
Armor materials: B4C, SiC, ZrB₂, TiB₂, Al₂O₃ (+CNT)
Transparent: Spinel, Al2O₃,
Nano-structured Materials
Functional / Functionally Graded Materials („FGM“)

COMPONENT APPLICATION EXAMPLES TOWARDS THE END OF THIS PAGE

Example: Hot Presses for Production

22500 kN
2400 °C
Workpieces up to 300 mm diameter
Gas Ar / He / N2
Vacuum 10-2 mbar
Pyrometer- and TC-controlled
Cooling chamber
Loading device

Example: LAB -Spark Plasma Sintering Technique “FAST”

Pressing force 5 … 250 kN
Piston stroke 0 … 100 mm
Piston velocity 0 … 2 mm/s
Temperature RT … 2400 °C
Heating rate up to 1000 K/min
Gas pressure 5*10-3 … 1.100 mbar
Pulse voltage 0 … 8 V
Pulse current 0 … 8 kA
Power max. 60 kW
Pulse time 1 … 255 ms
Pause time 0 … 255 ms Servo hydraulik force control
Temperature measurement control can be chosen between axial/radial pyrometer or flexible thermocouples
Furnace gases Ar and/or N2 (others on request)
User friendly online process management system

Example: Hybrid Heated FAST/SPS Furnace

Pressing force 4000 kN
Heating power FAST 400 kW
Heating power induction 400 kW
Maximum workpiece diameter 450 mm

Application Examples:

We work with you to analyze your process and capacity requirements and plan for you the furnace solution that best meets your component property and geometry needs as well as your material production flow.

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