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Reference Object No 5 |
In assembly work on the Airbus at DASA in Hamburg-Finkenwerder, extensive use is made of pneumatic drills for riveting the aircraft wings; these drills are powered by central energy supply units (see constructional drawing below).
The compressed air fed to the drills contains a certain amount of oil and moisture, which with round-the-clock operation of this equipment can quickly give rise to corrosion. It is however important to prevent rust formation in the pipes, as rust particles are entrained by the air and can lead to failure of the drills.
To date these supply units have been made of pipes made of stainless steel. In the interests of optimising costs a prototype has now been built of conventional steel. The inside of the pipes is protected against corrosion using the CORRPASSIV® 4900 system (consisting of primer and two-component epoxy topcoat), applied with a special coating tool.
In view of experience to date it is expected that CORRPASSIV® will rival stainless steel for corrosion resistance in spite of the substantial stresses to which it is exposed. It is in any case superior from the point of view of cost.
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 picture size 52 KB |
| Constructional drawing and view of an energy
supply and waste management unit for drills at DASA. The supply pipes indicated in colour are coated on the inside with CORRPASSIV® 4900 . |
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