Commercial Technology Manager - Europe
Why would I want to cryogenically treat tool steels? Does it really affect the microstructure?
After austenitizing and quenching, tool steels are sometimes subjected to cold treatment at approximately –80°C (-112°F), followed by tempering. Primarily, the cold treatment is done to increase strength, improve dimensional or microstructure stability, and improve wear resistance. These benefits are due to the transformation of retained austenite to martensite. Some studies show that lowering the cold treatment temperature below –100°C (-148°F) does not significantly increase the amount of retained austenite-to-martensite transformation—therefore, it does not result in additional benefits. However, other studies show that compared to cold treatment (–80°C / -112°F), cryogenic treatment (–190°C / -310°F) further improves wear resistance.
Les gaz Air Products, généralement fournis sous forme gazeuse et liquide, permettent aux clients de toute l'industrie d'améliorer leurs performances environnementales, la qualité de leurs produits et leur productivité.
Utile comme gaz, pour ses propriétés inertes, et comme liquide pour le refroidissement et la surgélation. Pratiquement n'importe quelle industrie peut tirer parti de ses propriétés uniques pour améliorer les rendements, optimiser les performances et rendre les opérations plus sûres.