PKSC 1020 Lecture 5: PKSC 1020 Lecture 5 Notes (I)

14 views2 pages

For unlimited access to Class Notes, a Class+ subscription is required.

1
PKSC 1020 6 February 2017
Dr. Heather Batt
Lecture Notes Manufacturing of Common Metals
Metals
Out of all of the metals on our planet, two are the most used in the packaging industry. They
are used for different things, but their chemical properties allow us to manipulate them and mold
them in to packages that we can use in our day to day lives.
Steel
Aluminum
Used for:
- non-beverage cans in the US
- beverage cans in Europe
- drums, strapping etc.
Used for:
- beverage cans everywhere
- trays
- foil
How do we make steel?
Iron is converted to steel through a series of steps:
- Melt/form
- Cold reduction
- Annealing
- Tempering
- Steel is coated to be used in can manufacture
Base Box
Base box is a term used to measure the area of metal. It’s a similar concept to basis weight
for paper and paperboards, and it indicated the plating sizes of the metals.
1 base box = 31,360 sq. in.
= 112 sheets of 14” x 20”
Once the base box is determined, there are specifications for the weight of the metal per base
box. This weight per base box is called the plating.
o Plating weights specified as lbs. /base box
o Higher plate number = thicker plating
Ex: Tin plated steel designated as 20 plate has 0.10/0.10 lbs/base box tin
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Get access

Grade+
$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
1 Booster Class
Class+
$8 USD/m
Billed $96 USD annually
Homework Help
Class Notes
Textbook Notes
30 Verified Answers
Study Guides
1 Booster Class