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Definition
Corrosion of metallic items can be either
a chemical or electro-chemical process, triggered and boosted by a
mixture of oxygen and dampness. But corrosion will only take place
where specific corrosive substances are present. Packaging experts
know that such corrosive substances can come into play in a great
many ways and that the relevant operating corrosion protection
measures must be upheld.
Precautions
Traces of sweat from a packer's
fingertips will not be immediately visible. Avoid touching metal
parts susceptible to rust with your naked hand at all times. It is
advisable to use either a cloth or, ideally, rubber gloves.
More tips & tricks
More tips & tricks
Corrosion substances can occur in:
Air:
dampness oxygen; industrial
emissions; SO2, NOx
dampness oxygen; industrial
emissions; SO2, NOx
Water: salt water, chlorinated drinking water,
etc.
Acids: caustics, welding and degreasing materials, acids contained
inside crate wood and electroplating baths stored near the packaging
department, etc.
Dust: and dirt attract dampness and bind corrosive
substances
Other: hardened oils and greases bind dampness,
sweat from hands contains chlorides, sulphates and phosphates such
as lactic, uric and fatty acids
Steam
At all times, atmospheric air contains a
certain amount of water in the form of an invisible water vapour.
The exact quantity of water vapour in the air depends essentially on
local and meteorological conditions, although a maximum threshold
does exist, measured in g/m². Once this maximum amount has been
reached, the air is referred to as "saturated" with damp and the
rate of relative humidity is 100%.
Temperature
Table
Temperature
Table
Hermann Nawrot AG • Lamsfuß 11 •
D-51688 Wipperfürth • Tel: ++49 (0) 22 68 / 91 37-0 • E-Mail:
mail@nawrot.de
