mm

Such material has an interesting specification: at environmental temperature and pressure doesn't dissolve becoming a liquid like water ice, but sublimes, that is it travels directly from the solid state to the gaseous state without passing through the liquid one.
Practically, when the flow hits the surface it penetrates the contaminant to take off and in the meantime it begins to sublime generating the gas. This one interposes itself between the contaminant and the surface taking out the dirt from the piece, easy to do because of the thermic change provocated by the ice that hardens and makes brittle the contaminant. So this process that, differently from the traditional blasting that takes advantages just from the solid particles kinetics energy that are immersed in the cleaning spout, works with the combination of the kinetics energy itself and dry ice chemical physical effects.
Another difference compaired to the traditional blasting is that the contaminant removal doesn,t happen by the material removal with consequent piece abrasion and dimensional changing, but it happens by the carbon dioxide chisel effect.

In the end we can surely say we have several advantages using this cleaning system:

• Chemical products are not necessary
• Non-corrosive · No sand residuals
• Only residual is the contaminants took off pieces
• No residuals to get rid of or flowing waters
• It's a dry cleaning system to be used also on electrical parts
• Pieces after cleaning comes out already dried
• No electrical supply
• It allows to clean some parts directly mounted on the machine so to avoid machine out of work.

The application field of this dry ice blasting is very large and covers industrial fields where it is requested the removal of contaminants as: sludges, oils, greases, resin and rubber scales either solid or semi-solid, rust, soot, calcareous scales, alimentary material residuals and many others.
This new blasting is a portable equipment with gun, ejector that needs only compressed air at 5-6 bar at least.

[Argomenti correlati]
- carbon dioxide and the industrial cleaning
- carbonet: the equipment working with liquid carbon dioxide
- cleanblast working with CO2 ice
- sno gun working with CO2 snow