Sub-Zero Treatment, also known as cryogenic treatment, utilizes ultra-cold temperatures to modify the micro-structure of metals and other materials. It is part of heat treating operations in manufacturing processes. This process requires temperatures of at least -120°F to begin. For deep sub-zero treatment the parts must cooled to -300°F where they are held for relatively long periods of time and then slowly warmed back up. This treatment has many benefits including:
This type of heat-treating production has been widely accepted as a cost reduction process and performance enhancing technology.
Subzero can also mean:
In popular culture:
As a title: