Graphite Dry Pellet Pressing Die of 1/2"(12.7mm) I.D. for SPS and RHP Furnace. - EQ-Die-05D-GP-4

EQ-Die-05D -GP-4 graphite die is a consumable set for OTF-1200X-VHP4, and it can dry press ceramic material at the high temperature up to 1000 ºC and up to ~0.6Ton.

SPECIFICATIONS:

Model	EQ-Die-05D -GP-4
Dimensions
Weight	1 Lbs
Material	Made of high purity ( >4N )  and high-density graphite  (HIP)
Whole set pressing die includes	One sleeve die with 1/2"(12.7mm) I.D. and 1-7/8"(48mm) O.D 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. Max. pressure load depended on pellet size.  For example:  399ºC in air > 400 ºC  need inert gas protection 2200oC Max. in high vacuum or high purity Ar gas  Max. sustainable pressure is 50Mpa (~0.6 ton applied on the die) The die is specifically designed for our OTF-1200X-VHP4 to meet the high-temperature requirement
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
Cautions	Please must always wear protection goggles during operation !!! The pressing die cannot be used for pressing powder with a 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 1 Pic 2 Please use alcohol to clean the pressing die every time before use and store it in a dry place.
Application Note	You may consider using EQ-BNMR for easy mold release. Please click the picture below to order.