BRANOpac - Deutsche Messe...

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.

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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


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Mode of action, pros and cons of the

temporary corrosion protection methods

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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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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


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• Versiegeln der Öffnung, durch die die Luft entzogen wurde

• Absaugung der Luft zur

Reduzierung der

Restfeuchte


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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


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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• Avoid contact between wood, paper and cardboard

to the metal

• Don´t touch the metal without wearing gloves

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Packaging of small tools

Application

BRANOpac

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VCI-Chip

Injection nozzle

Application

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Packaging of medium sized metal parts

Application

BRANOpac

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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

BRANOpac - Deutsche Messe...

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