Cleaning the workpiece under high temperature and the absence of oxygen which results in pyrolysis. Beskrivning The process The workpiece is heated to about 700-1000°C in an oxygen-free environment. This allows the impurities on its surface to turn to ash and vapors without any combustion, this is known as pyrolysis. Pyrolysis Cleaning Advantages and disadvantages In comparison with alternative methods No cleaning chemicals required, no mechanical cleaning required The workpiece is exposed to high heat, which can affect material properties.