Wantong dry ice cleaning, non-destructive, energy-saving and environmentally friendly

Wantong dry ice cleaning technology is a dry ice manufacturing machine that prepares dry ice particles of a certain specification. The solid particles of dry ice are driven by compressed air and rapidly impact the cleaned surface through the dry ice cleaning machine nozzle, causing the surface dirt layer to be subjected to extreme cold and quickly brittle cracking, greatly reducing the adhesion force with the machine parts. The crushed dry ice particles enter the cracks, quickly sublime, and the volume instantly expands nearly 800 times. This causes a “micro explosion” at the impact point, quickly peeling off the dirt layer and achieving the cleaning effect. The working process is mainly based on the following key principles:
Low temperature embrittlement: The temperature of dry ice is extremely low, reaching -78.5 ℃. When dry ice particles are sprayed at high speed onto the surface of the cleaned object, the dirt layer will be instantly impacted by low temperature. Due to the differences in thermal expansion and contraction coefficients of different substances, dirt will quickly become brittle, and the structure that was originally tightly attached to the surface of the object will become loose, creating favorable conditions for subsequent cleaning work.
Kinetic energy impact: Driven by compressed air, dry ice particles gain extremely high velocity and collide with dirt with strong kinetic energy. This high-speed impact can effectively break the adhesion between dirt and the surface of the object, causing dirt to detach from the surface of the object.
Sublimation and stripping: Dry ice will sublime directly from solid state to gaseous carbon dioxide at room temperature and pressure, and its volume will instantly expand by about 800 times. When dry ice particles enter the gaps between dirt and the surface of an object and sublime, the resulting expansion force is like a tiny explosion, further peeling the dirt off the surface of the object and achieving deep cleaning.http://www.ntpco2.com