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Carbon/Carbon Loading Racks for Heat Treatment

Mersen Carbon/Carbon composite loading rack for heat treatment

Usage of the Carbon/Carbon composite instead of metal for loading racks allows to:

  • Increase energy efficiency, due to the very low thermal mass of Carbon/Carbon composite, your energy is being spent heating (and cooling) components rather than supports and fixtures.
  • Rapid heat up and cool down, also as a result of the low thermal mass
  • Material lightweight, allows for easier handling
  • No thermal deformation or creep, giving extended lifetime
  • Eliminates sticking of metal parts to rack surface
  • Increase of the productivity

 

APPLICATIONS

Carbon/Carbon loading trays and baskets are used for thermal treatment processes such as

  • vacuum brazing,
  • annealing,
  • low pressure carburizing,
  • gas quenching of automotive parts,
  • case hardening of steel parts with subsequent oil quenching etc. 

THE ADVANTAGES OF CARBON/CARBON COMPOSITE TO CAST METALLIC TRAYS

  • Carbon/Carbon trays use 5-10 time less energy than steel. Improved energy efficiency of heat treatment processes with the possibility to reduce heating/cooling cycle.
    • C/C composites do not lose mechanical properties with temperature. Lightweight constructions are possible.
  • Lightweight construction, easy handling thanks to the weight reduction.
    • Density of Carbon/Carbon is 5 times less than steel
  • Easy automation. Handling by robots.
    • Carbon/Carbon trays have no distortion or thermal creep.
    • CTE of C/C is 10 times less than steel.
  • Improved quality of treated parts. No sticking/brazing of metal parts to rack surface, therefore no deformation of the metal parts
    • C/C composites have a self-lubricating surface
  • Cost saving.
    • No embrittlement, robust, increased lifetime
    • Increased loading capacity by optimized design
    • Thermal shock resistance increases with temperature