Dry Ice Blasting Process
Step
1 - Energy Transfer:
Dry ice pellets are propelled at supersonic speed and impact the
surface. The energy transfer removes the contaminant without abrasion
- this force is the primary means of cleaning.
Step 2 - Micro-Thermal Shock:
Upon impact, the temperature of the dry
ice (-79șC) creates a micro-thermal shock between the contaminant
and the substrate. Cracking and delamination of the contaminant
occurs, furthering the elimination process.
Step 3 - Gas Pressure:
Finally, the
dry ice pellets explode on impact, expanding rapidly underneath
the contaminant surface. This forces the contaminant off the surface
from behind.
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