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1/2" (12.7 mm) I.D. Graphite Pellet Pressing Die w/ Pushing Rods - EQ-Die-12D-GP

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EQ-Die-12D-GP graphite die is good for dry pellet pressing ceramic material at high temperature up to 1700 ºC.


Modle EQ-Die-12D-GP
Weight 1.3 Lbs
Whole set  pressing die includes
  • One 0.5"(12.7mm)  I.D. core die  made of   high purity & high strength graphite --made in Japan
  • One sleeve for core dies protection
  • Two pushing rods highly polished to ensure a perfect fit in the die.
  • One pressing pole for releasing the sample from die only.
  • Max. Working temperature:
    • 399ºC in air
    • > 400 ºC  need inert gas protection
  • Max. sustainable pressure is 50Mpa (~0.6 ton applied on the die)
Steps to make sample pellet
  • Mixing and grinding chemical powder by agate mortar
  • Calcine mixed the powder in a high temp furnace under suitable temperature
  • Grinding calcined powder again by mortar
  • Put calcined powder into the die
  • Pressing sample by a pressing machine under suitable pressure
  • Take out pellet sample from die
  • Sintering the pellet under suitable temperature
  • Then, a new material sample is formed!
Instruction Video
  • Please must always wear protection goggles during operation !!!
  • The pressing die cannot be used for pressing powder with particle size < 30 microns. Small particles may slip into the gap between pushing rod and steel sleeve and cause damages to the sleeve during the compression. Ball mill and sieve the powder and apply only the 32~75 microns powder to the pressing die to avoid the damages. Please consider using the 3'' Dia. Sieve Set No.200&450 Mesh to separate the 32~75 microns particles from the powder clumps. Please clean the mould via ethanol after the completion of each experiment.   (pic. 1)
  • You may use BN coating as mould release (Pic 2)
                 Pic 1Pic 2
  • Please use alcohol to clean the pressing die every time before use and store it in a dry place

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