Vacuum Heat Treating

Vacuum heat treating is crucial to super-alloy rejuvenation and qualified repair procedures. In order to decrease unwanted reactions and contamination with ambient air, our vacuum furnaces are operated in a protective atmosphere which is evacuated to high vacuum and partial pressures that are compatible with specific metals and processes, then back-filled and cooled with inert gas. Our vacuum heat treating service is assisted by three high-vacuum turbo-cooled furnaces, an electric furnace and all the necessary fixtures. Our heat treatment processes include:

• Heat tinting
• Annealing prior to weld and machine repairs
• Stress relieving after weld and cold repairs
• Brazing
• Solutioning of undesirable phases carbides
• Controlling grain size
• Precipitation hardening
• Diffusion of coating
• Closing voids and porosity
• Aging