We carry out the quenching in a vacuum purge furnace, which is heated to achieve the changes under controlled atmosphere (hydrogenated nitrogen, pure nitrogen) in order to avoid any interaction of the atmosphere with the part: the material is heated at a phase change temperature (depending on the purpose of quenching), for the time required for the transformation of the entire heated mass; Then the material is cooled at a speed sufficient to trap chemical elements diffused at high temperature. Finally, the tensions in the crystalline meshes which are born from this imprisonment of chemical elements contribute to increasing certain mechanical characteristics of the hardened part. The advantage is that the treated parts do not oxidize and remain shiny.
Our specialists bring their expertise in choosing the austenization and quenching media depending on the part to be treated (geometry, size, type of steel), the cost of the treatment, the equipment available, the post-treatment steps (cleaning, re-machining, etc.) ...
The advantages of vacuum gas quenching: No oxidation and no decarburization of the surface layers of the parts, more limited deformation of the parts than oil quenching and cleanliness of the parts. The hardness of the treated parts is increased. The tempering comes into complement in the treatment of the parts.
Our specialists are ready to determine with precision the best treatment adapted to your needs.