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D 049 Plasma cleaning for undersea application ( Date: 2003-06-02 )
Precleaned parts for submarine use or electric parts made of steel, stainless steel, copper, brass, aluminium, glass fibre plastics, plastics, silver plated ceramics are plasma cleaned to achieve precision cleaning; thereafter water-resistant processing
 


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

Material:

Precleaned parts for submarine use or electric parts; parts vary between 1 g and 10 kg resp. longest dimension between 1 and 1000 mm. Parts are charged in baskets or on racks
METAL / NON METAL : steel, glass, stainless steel, rubber, brass, aluminium, alloy, copper, plastic, ceramic, silver plated ceramic
Shape : porous surfaces, smooth surfaces, hollow spaces, a complicated geometry, a simple geometry, metal folding
Utilisation of equipment (throughput,workload) in % : 14
Maximum possible throughput of parts per year : 1.200.000
Max. area which can be cleaned per year : No statement

Dirt:

minute organic residues
Previous process : Parts are pre-cleaned in small ultrasonic assisted cold cleaner baths

Equipment:

Blersch Anlage
Computer controlled plasma cleaning plant

Process:

Special equipment (for one special task),Multitask equipment,Central cleaning station,Plasma cleaning

1. vacuum, process gases, produce a plasma by igniting with microwave, pressure variations to achieve turbulence 2. rinsing chamber and parts with nitrogen

Duration of cleaning process for one part (min.) : 20.00
Duration of cleaning process for the charge (min.) : 20.00
Recycling : Step:1 Plasma gases with the burned-in contaminations are washed out with nitrogen by activated carbon
Step:2 No statement

Quality:

Precision cleaning

Qualify in subsequent tests

Subsequent process:

no further treatment (the parts are final products), gluing, Filling with casting resin

Costs:

Total sum : 37,40 EURO / Year


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