Thursday, December 15, 2016

Pig Iron

We've now learned about Sponge Iron and Wrought Iron.

Another type of iron made in a forge is pig iron.

This is iron after it has gone through a blast furnace, it is stirred and stirred while heated.
There are a lot of things called impurities in the metals, that make the iron harder to work with or not look as nice.
After heating and stirring, the metal can be cooled and turned into little metal bricks nicknamed "pigs".

They got this nickname because the way the iron was made in molds, it looked like a bunch of little piglets with a larger mother pig.

When they broke off the small pieces from the mother sow, they called them pigs.

(from: wikipedia - pig iron)

Kid Facts - Blast from the past: Dust Devil