Step 1 , the dry ice particles in the high-pressure air to accelerate to nearly the speed of sound impact surface to be cleaned , instantly vaporized in the impact , the momentum of the impact of dry ice instantly disappear , dry ice particles and clean the surface heat transfer occurs between rapid , resulting in solid CO2 rapidly sublimate into gas .

Step 2, the temperature can damage the different thermal expansion coefficients of the materials combine , dry ice pellets (-78.5 ℃) impact the surface being cleaned , so that dirt and brittle frozen burst , resulting in " cracking ", affecting the mechanical properties of adhesion of dirt .

Step 3 , the impact of dirt between the cracks dry ice pellets in thousandths of seconds nearly 800 times the volume expansion , the formation of numerous "mini- explosion" that will strip the dirt surface . While grinding with dry ice pellets and impact , air purge cut , so that the dirt from the surface being cleaned is stripped in solid form , so as to achieve the objective of the clean . Because CO2 volatilization , dry ice cleaning process did not produce any secondary waste , leaving only the clear need to be cleaned off the dirt.

 

 The first part is the ice preparation system : the production of liquid CO2 into standard dry ice pellets or dry ice ;

 The second part is dry ice blast cleaning system: cleaning equipment has produced a good load of dry ice or dry ice particles in the compressed air driven , high-density dry ice pellets with compressed air shocks to the surface to be cleaned , and thus play cleaning action.

 

A significant advantage of dry ice cleaning