The dry ice particles are sprayed to the working surface to be cleaned by high-pressure air, and the physical reflection of temperature difference is used to make different substances separate at different shrinkage speeds. When the dry ice particles at -78.5 degrees Celsius touch the surface of the dirt, it will produce an embrittlement explosion phenomenon, so that the dirt will shrink and loosen, and then the dry ice particles will instantly gasify and expand 800 times, resulting in a strong peeling force, quickly removing the dirt It will fall off from the surface of the object, so as to achieve fast, efficient, safe and energy-saving cleaning effect.

energy transfer

The dry ice hits the surface to be cleaned at high speed, and the kinetic energy of the impact is dissipated. The dry ice particles and the cleaned surface undergo extremely rapid heat transfer, and the carbon dioxide sublimates instantly.

Low temperature cracking

Two different materials with different thermal expansion coefficients, the temperature difference between them will break the bond between the two materials. Dry ice particles (-78.5°C) impact the surface of the treated object, causing the dirt to freeze to embrittlement and burst, resulting in cracks and affecting the mechanical properties of the adhered dirt.

micro explosion

After the dry ice particles penetrate into the cracks of the dirt, they sublimate within a few thousandths of a second, and their volume instantly expands by 600 to 800 times, peeling off the dirt from the surface of the object.

In the dry ice blasting process, compressed air is used as power to spray dry ice particles onto the surface of the object to be cleaned at supersonic speed, but it does not rely solely on the kinetic energy of dry ice particles, but uses the ultra-low temperature performance of dry ice to achieve the purpose of decontamination.