What type of coating is used on the strip steel used for the canning industry?
Sacrificial coating-
incorrect, a sacrificial coating corrodes in preference to the steel. This will still
provide corrosive products that will contaminate the drink or poison the customer. |
Barrier coating- correct, a barrier coating is a relatively inert material which will protect the
steel underneath from the atmosphere thereby preventing corrosion. Click
here to find out which barrier coating you would select for this application.
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Deep drawing and n value - Deep drawing and n value - incorrect, whilst deep
drawing is used to produce drinks cans, the n value is used in association with
stretch forming. Try again.
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Stretch forming and n value - Stretch forming and n value - incorrect, stretch is used to produce
components such as automotive body panels and the n value is used in association
with stretch forming. Try again. |
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Try again. |
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Try again. |
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Click on your answer to check and make a note of the answer on your notepad.
If you have not already reviewed the section on corrosion and
coatings do so
now by clicking here |
NOTEPAD
The 3 most important properties for a drinks can are:
Cleanness / consistency
Formability
Cost
Number of steel cans used for soft drinks and beer in the UK per year:
3 - 5 billion (more accurately 3.5 billion)
Type of inclusion
that may be formed in drinks can strip steel: Elongated
MnS
Forming route and formability parameter used when producing drinks cans:
Deep drawing and  value
Type of coating used on a drinks can:Barrier coating more
accurately an electrolytic tinplate coating
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