Graphite Hot Pressing Dies

Graphite hot pressing dies are critical tooling in hard alloy manufacturing, shaping powder blends (e.g., tungsten carbide, cobalt) into high performance components via hot pressing (elevated temperature + controlled pressure).

Made of high purity, fine grained graphite, they offer exceptional thermal stability, withstanding 1300–1600°C sintering temperatures without deformation. Chemical inertness avoids reactions with powders/atmospheres, preserving alloy composition and properties (hardness, wear resistance).

Superior thermal conductivity ensures uniform heat distribution for precise dimensions, while self-lubricity enables smooth demolding to reduce wear and extend service life—making them indispensable for quality hard alloys in tools, mining bits, etc.