Page 51 - I want to create content about steel!
P. 51
Korea Iron & Steel Association Chapter 3●Tour of a steel mill
Once the molten iron hardens,
the furnace can’t be used again. So A lot goes into making a That’s right. When hot molten
this plant cannot shut down; it operates 24/7. steel product! steel is placed into molds and
cooled to harden, it becomes
semi-finished products, known as
You watch slabs, billets, and blooms.
A steel mill too many movies.
never sleeps.
Billet
Billet
(Proud) Slab
(Proud)
Slab
Bloom
Bloom
Remember how you prepared the When the molten steel becomes a
Look at that big jar. That's what's called a ‘converter.’ dough before making noodles? hard solid(semi-finished product),
Molten iron fresh from the furnace is called ‘pig iron.’ This is no different. it goes through the final process
It still contains some impurities. that turns the iron into a steel plate.
I see.
I see.
Wow!
Wow!
A semi-finished product
is passed between a number
of rotating rolls to stretch
When those impurities are and press it thin by applying
(Nod)
removed in the converter, it continuous force. (Nod)
becomes workable molten
steel, deemed adequate for
Roll
steelmaking. Roll
Oh!
Oh!
A-ha!
A-ha!
(Nod, nod)
(Nod, nod)
When the fire is extinguished, the molten iron in the furnace will harden, rendering the furnace
Tidbit unusable. Astronomical cost and time is needed to destroy the furnace and to build a new one. Tidbit Steel plates used to make beverage containers and tuna cans is about 0.15 mm in thickness. That's
Therefore, steelmaking furnaces operate 24/7. as thin as paper.
48 49