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Dry ice cleaning Fundamentals

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 fouling .
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.

dry ice cleaning

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.
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Dryice blasting
is a non-abrasive,nonflammable and nonconductive cleaning method
is environmentally-friendly and contains no secondary contaminants such as solvents or grit media
is clean and approved for use in the food industry
allows most items to be cleaned in place without time-consuming disassembly
can be used without damaging active electrical or mechanical parts or creating fire hazards
can be used to remove production residues,release agents,contamints ,paints,oilsand biofilms
can be as gentle as dusting smoke damage from books or as aggressive as removing weld slag form tooling
can be used for many general cleaning applications

dry ice cleaning
Address:No. 18 Nongke Road, Hudai town,Binhu District, Wuxi, Jiangsu, China Tel:86-510-85595950  Fax:86-510-85595969
Website:www.dryicemachinery.com  www.wxyj88.com (simplified Chinese)  www.ganbingji.com E-mail:yongjun.shao@wxyj88.com huafeng.chen@wxyj88.com
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