Art of Cleaning by Dry Ice
Art of Cleaning by Dry Ice As the pellets of dry ice impact onto the surface to be treated, a thermal differential is established between the substrate and the contaminants. Meanwhile the pellets sublimate and these gaseous molecules of CO2 enter through the pore spaces between the contaminants and the substrate. Since the volume expand 800 times instantaneously, thus pushing the contaminants from underneath, further assisting in the removal process.
Comparing with other blasting methods, the kinetic energy (KE=1/2mv2) of dry ice pellets is not the only contributing factor, so we can vary the blasting pressure for heavy slag removal or even sensitive substrates such as delicate semiconductors and circuit board cleaning.
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