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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
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Type of cleaning : Special equipment (for one special task)
Multitask equipment
Central cleaning station
Plasma cleaning
Cleaning support : Modified pressure conditions
Description :
Since when do you apply current cleaningsystem? : 1 / 1993
Step : 1. Cleaning, 20,0 ░C, (Inert gases)
2. Rinsing, 20,0 ░C, (Nitrogen (Gas))
Duration of cleaning process for one part (min.) : from: 20,0 until: 25,0
Duration of cleaning process for the charge (min.) : from: 20,0 until: 25,0
How often is the cleaning done (per day) : from: 10,0 until: 20,0
Further treatment : no further treatment (the parts are final products)
gluing
Filling with casting resin
Surface requirements : Precision cleaning
Description: Qualify in subsequent tests
Quick tests Visual control
Advanced tests : No statement
Destroying tests with processed and stressed components
Quality of cleaning : very good
Company evaluation of cleaning process in general : very good
Comment :
Incidences : No statement from company
Working environment : No statement from company
Protection equipment : Covered / closed plant


Evaluation by company personnel
Occupational safety and health : good
Environment protection : very good
Cleaning time : good
Waste management : very good
Cleaning quality : very good