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D 009 Blasting of ship's hull with CO2 ice pellets ( Date: 2001-12-19 )
Newly built ships made of steel covered with primer are cleaned of residue, oxides and soot from welding and gas cutting using CO2 pellets and a manual blasting equipment (pressed air operated), thereafter another corrosion protection paint is applied.

  Material  |  Dirt  |  Equipment  |  Agents  |  Process  |  Costs  |  Evaluate  |  Comparison  


Ships hull inside (cabins etc.); area of 300 m2 is cleaned during night shift (7.5 hrs.)
METAL / NON METAL : steel, stainless steel, aluminium
Shape : smooth surfaces, metal folding
Utilisation of equipment (throughput,workload) in % : 18.84
Maximum possible throughput of parts per year : No statement
Max. area which can be cleaned per year : 350.400 m▓


mud/dust, soot, rust, deposits
Previous process : Welding, gas cutting


CO2 blasting equipment, manual blasting equipment, driven by compressed air


Dry CO2 ice blasting

Duration of cleaning process for one part (min.) : No statement
Duration of cleaning process for the charge (min.) : No statement
Recycling : Step:1 Since the agent is produced from waste gases, a closed loop is achieved on global level. The agent sublimes, so only the dirt remains, which can be disposed of via municipal channels


free of oil and grease, dry

St2, EN 55928-4, Paint supplier determines the process since the guarantee depends on an approved surface treatment.

Subsequent process:

long term corrosion converting coating (more than one year), Primer (airless)


Total sum : 95.441,50 EURO / Year

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