Annealing is the most commonly used for treating metals, but other materials, including glass and plastics, can be annealed. Depending on the material, annealing temperatures range from less than 100 degrees C to more than 1000°C., a process that can take hours or several days.
During the annealing process, a metal, plastic or glass is heated to a specifi c temperature or color and then the metal is cooled at a controlled, specifi ed rate. This process changes the physical and chemical properties of the material to make it more malleable, or improve ductility; provide stress relief and create a new microstructure.
A specialized annealing oven gives users the ability to tightly control and monitor the heating and cooling process, allowing for proper recrystallization to occur within the material.