Chemograf provides a variety of thermal treatments for the parts it manufactures.
These treatments are carried out exclusively by subcontractors approved for defense industries and are performed under the strict supervision of our Quality Control Department. Thermal treatments are a family of complementary processes that involve extreme temperature changes and, at times, the addition of a chemical agent or gas. These treatments aim to alter the physical properties of the manufactured part and, in some cases, its chemical composition and metallurgical structure.

In most cases, the designer’s goal is to harden the surface of the part—a process known as quenching.
Typically, thermal treatment involves heating the parts in a furnace to very high temperatures and then immediately cooling them in a cold liquid—usually water or oil. There is also a hardening technique performed in a vacuum atmosphere.