# Heat-treatment fixtures

Supports, bases, trays, fixtures and graphite/carbon parts for heat-treatment cycles.

Family: Thermal applications

## Description
The **place** may be a heat-treatment line or plant (including vacuum or controlled atmosphere). The **application** is the graphite tooling: supports, bases, trays and fixtures that hold or position the load during the cycle.

Good tooling keeps parts stable, transfers heat predictably and avoids contamination. Design should consider thermal cycling, load weight and atmosphere.

ESGRAF machines custom fixtures from isostatic, extruded or molded graphite according to the part geometry. Provide cycle temperatures, atmosphere, load and a drawing for quotation.

## Processes
- Hardening
- Annealing
- Tempering
- Brazing
- Load support in the furnace

## Challenges
- Fixture deformation
- Uneven heat transfer
- Part contamination

## Advantages
- Dimensional stability at temperature
- Relatively low thermal mass
- Custom design by part geometry

## Limitations
- Oxidation in air at high temperature without protection
- Design must account for shrinkage and cycles
- Part contact may require a low-contamination grade

- [Applications](https://esgraf.com/en/applications)
- [Alternate](https://esgraf.com/aplicaciones/tratamiento-termico-utillaje)