Materials for Heat treatment applications

Vacuum heat treatment is capable of achieving almost all heat treatment processes including quenching, annealing, tempering, carburizing, nitriding, vacuum brazing, sintering and surface treatment while maintaining higher levels of component cleanliness when compared to traditional processes.

Uniformity of temperature is of great importance to heat treatment results.

For hot zone insulation, most vacuum furnaces use carbon based materials for their unique properties.

Furnace heating elements

• Isostatic graphite fine grain
• Extruded graphite
• Carbon/Carbon composite Aerolor®

Furnace insulation

• Very large diameter CALCARB® CBCF insulation
• Grafshield™ GRI™ Insulation 

Carbon Fiber Carbon composite bolts, nuts and rods are used as mechanical connectors under extreme high temperature up to 2,000˚C. 

At this temperature range, it is difficult for many ceramics or metals to keep their physical mechanical strengths. CFC material has the advantage in higher heat resistance and superior strength.

Mersen offers:

High-temperature fasteners

• Carbone/Carbone composite screws and bolts

Furnace structural elements

• Shelf, basket, oven floor with gas inlet made of composite

Heat shield

• Composite cylinder