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TRANSCRIPT
BRANOpac
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BRANOpac At your service
worldwide
We protect your products ...
... maintaining the value of good products
Quality Flexibility
Innovation
Halle 5 D35
BRANOpac
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Parts2Clean 24.10.2017 Referent: Dr. Jörg Kroll
Clean Parts and then…? An Overview of the different corrosion protection methods
for storage, transportation und shipping
BRANOpac
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Structure:
• Company Info
• Which corrosion protection methods exist ?
• Mode of action, pros and cons of the temporary corrosion protection
methods
• Packing precautions
• Packaging of small tools
• Packaging of medium sized metal parts
• Packaging of world-scale plants
BRANOpac
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Group
Group
BRANOpac
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At your service worldwide
Subsidiary and
support bases of BRANOpac
● New Delhi (Sonepat), India
● Ningbo (Beilun), China
● Paris (Les Ulis), France
● Milan (Sedriano), Italy
● Orlando (Auburndale), USA
BRANOpac
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Group
Internationally positioned
Global production- and sales network
with subsidiaries worldwide to guarantee
product efficiency and access to
international markets.
• More than 500 employees in total
• More than 60 million euro turnover worldwide
BRANOpac
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BRANOguard
Temporary corrosion protection
• BRANOcell
• BRANOplast
• BRANOvac
• BRANOfluid
BRANOpac
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BRANOscience
Analytics, training and
technical application
• process chain from one provider:
clean and safety to target
• Competence Center:
support right from the start
BRANOpac
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BRANOscience
Competence Center for
applied corrosion protection
From consultation to the production or packaging –
with BRANOpac you not only get a product, but a
complete service package, worldwide support and
innovative consulting services.
BRANOpac
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Solution with system
Premium
Basic
Customized
Solution for
every requirement
Because of this system you get products with an
optimized protection and maximum transparency
as well as cost controlling.
BRANOpac
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Which corrosion protection methods
exist ?
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…Which metal should be protected
…for how long
…in which region
…under which preconditions
(storage / transportation)
?
Corrosion protection methods
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Corrosion protection methods Permanent
Appropriate choice
of material
Metallic
plating
Polymere
coatings
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Corrosion protection methods
Temporary Coating method
passive
corrosion protection
Climatic packs
passive
corrosion
protection
VCI method
active
corrosion protection
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Mode of action, pros and cons of the
temporary corrosion protection methods
BRANOpac
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Coating method
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Mode of action of the coating method
• Coat the metals with a film of oil or wax (tectyl), which also contains corrosion inhibitors
• Inhibit the entry of moisture
NO CORROSION WITHOUT WATER!
(Also not at temperatures below 0°C!)
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Coating Method Pros
• Oils: Easy to apply – dip, spray or brush
• No additional packing required, depending on the product
• Minimal interactions with mixed materials
• Also provide lubrication properties
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Coating Method Cons
• Ecological concerns (oil in the earth)
• Harder coatings (tectyl) need to be cleaned with a solvent
• Oil residues & cleaning sediments require disposal
• Necessary to re-protect at each processing stage
• Small holes may plug up, & passages could become sticky
• Metal parts have to be oiled completely – no gaps can be left
• Harmful (occupational safety)
• Storage for hazardous goods is necessary
• Dust easily sits on oiled parts
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Wirkungsweise der Überzugsmethode
• Überzug der Metalle mit einem Öl- oder Wachsfilm (Tectyl), der zusätzlich Korrosionsinhibitoren enthält
• Verhindern des Zutritts von Feuchtigkeit
OHNE WASSER KEINE KORROSION!
(Das heißt: auch nicht bei Temperaturen unter 0°C!)
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Coating method
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Coating method
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Desiccant method
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Desiccant method
• The desiccant absorbs the moisture in the packaging
• The barrier prevents reentry of moisture
No corrosion takes place
Below a relative humidity of 40%.
BRANOpac
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Component
Desiccant
Wood
Overpack
airtight Film
packaging
PE or PP
Component
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Desiccant method
Pros
• Accepted standard for many users
• Calculation of the desiccant quantity is defined in DIN 55 474
n = 1/a (V · b + m · c + A · e · WDD · t)
• No problems with multi-component systems
(metals + plastics + rubbers + lacquers +...)
• Long-term preservation possible (> 10 years)
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Desiccant method Cons
• One of the most expensive preservation methods
• Recycling problems with laminated aluminum foils used for wrapping
• The amount of desiccant must be determined correctly by accounting for moisture in the wood
• Loose desiccant (silica gel) is partly corrosive
• The packaging must be absolutely tight (customs check!)
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Desiccant method
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• Zusammenschweißen von Haube und Boden- material
Maßgenaue Sperr-
schichtmaterialhaube
überziehen
Entstehung einer Klimapackung
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• Gummidichtung entsprechend des
Durchmessers der
Feststellschraube ausstanzen
• auf Holzpalette bringen
• Dichtungsmasse an den
Schloßschrauben anbringen Sperrschichthülle
Gummidichtung
Metallteil
Palette
Entstehung einer Klimapackung
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• Versiegeln der Öffnung, durch die die Luft entzogen wurde
• Absaugung der Luft zur
Reduzierung der
Restfeuchte
Entstehung einer Klimapackung
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Entstehung einer Klimapackung
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VCI Methode
V Volatile
C Corrosion
I Inhibitor
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VCI Methode VCI Film
Metal part
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Metal
VCI VCI VCI VCI VCI VCI VCI VCI
VCI
VCI
VCI VCI VCI
VCI VCI VCI
H2O H2O
H2O
H2O
VCI-method
1. VCI forms an addition compound with the metal
surface and suppresses the moisture
(increase of surface hydrophobicity)
Passive Layer
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Metal
VCI VCI VCI VCI VCI VCI VCI VCI VCI VCI VCI VCI VCI VCI VCI VCI
VCI-method
2. Repair of the destroyed passive layer
Passive Layer
VCI VCI VCI
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Waterdrop
Metal
VCI-method
3. Alteration of the pH value
Passive Layer
VCI
VCI
VCI VCI
VCI
VCI
VCI
VCI
VCI
VCI VCI VCI
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Pros • Corrosion protection without oiling, greasing or enameling
• No cleaning or degreasing necessary
• Usable immediately on being unpacked
• No explosion or fire danger
• No major equipment required
• Economically effective due to time savings when packing and unpacking
• All-in-one packaging and corrosion protection
• Reasonably priced raw materials
• Minimal requirements for the wrapping
• Highly secure
• Easy recycling / disposal
• Applicable for all plants- and component sizes
VCI-method
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Hints • Product usage needs to be explained, because the different VCI types
are metal-specific
• The wrong VCI type may attack the metal
• Keep the printed side outwards, since it often possesses special
properties
• The packaging must be sealed as tightly as possible (avoid draughts).
The more tight the outer packaging, the more long-lasting and secure the
corrosion protection
VCI-method
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Coating method Dessicant method VCI method
Protection method passiv passiv activ
Packaging Process prepare machine
coat with oil
pack
produce hoods
calculate dessiccants
insert dessiccants
seal airtight
draw Vacuum
pad packaging
pad cargo securing
pack in
possibly insert depot
Cleaning necessary not applicable not applicable
Disposal special waste recycling recycling
Method comparison
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Packing precautions
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• Metal surfaces should be as clean as possible,
• Free of residues from previous work done, and
• Without any existing corrosion
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Fails
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Fails
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Fails
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• Avoid contact between wood, paper and cardboard
to the metal
• Don´t touch the metal without wearing gloves
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This man wear gloves !
Fails
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Fails
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Fails
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Acclimatization!
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Acclimatization!
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Packaging of small tools
Application
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VCI-Chip
Injection nozzle
Application
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Connecting rod
Application
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Automotive
Application
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Crank shafts
Application
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Bulk material
Application
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Skin packaging Application
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Packaging of medium sized metal parts
Application
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Engine block
Application
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Application
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Roller bearing in VCI paper
Application
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Steel coils in VCI paper
Application
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Packaging of world-scale plants
Application
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Shrinkfilm packaging
Application
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Turbine rotor
Application
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Gearbox
Application
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