Stress relieving
Stress relieving eliminates or reduces residual stresses caused by welding, machining or cold working operations.
For stress relieving, we use electric heating elements or high velocity gas burners and, depending on the size of the part, a modular transportable furnace.

Preheating
Preheating reduces the risk of cracking, decreases hardness in areas affected by welding and lowers potential stress concentrations caused by the welds.
This treatment must be performed before welding as per federal welding standards (CSA-W59) and manufacturing and repair regulations for pressure vessels (ASME Section VIII).

Drying out of refractories
Refractory liners made of bricks or castable materials must be dried out before going into service in order to reduce moisture content to a minimum, which greatly enhances their durability and performance.

Shrink fitting
This operation is used to tightly fit one cylindrical metal part over another. This technique consists in first expanding the outer part by heating it before inserting the inner one. As the outer part cools and the metal contracts, it molds itself tightly to the inner piece for a perfect fit.

Baking of paint finishes
This process consists in heating a coated part at low temperatures. It is used to dry or cure coatings quickly.

Stress relieving by vibration
Sometimes the conventional stress relief treatment is not recommended for reasons of dimensional stability. The alternative is to use the vibration process. This treatment rearranges the crystalline structure through stress elimination while maintaining the dimensional stability and the properties of the metal.