Chapter 11

Question 1

Blast furnace

Answer 1

Used to convert iron ore into pig iron

Question 2

Gas stirring

Answer 2

A refining technique that consists of bubbling gases such as nitrogen or argon through the ladle, which promotes the floatation and removal of nonmetallic materials.

Question 3

Iron making

Answer 3

First stage in the manufacture of steel.

Question 4

Merchant mill

Answer 4

A relatively small steelmaking speciation that produces a limited range of finished forms from scrap steel.

Question 5

Mining

Answer 5

extraction of valuable minerals or other geographical materials from earth from the ore body, lode, vein, seam, or reef which forms the mineralized pkg. of economic interest

Question 6

Ores

Answer 6

rocks and minerals from which metallic elements can be economically extracted

Question 7

Overburden

Answer 7

describe dirt, soil & rock that must be cleared during mining operations to gain access to valuable ore body

Question 8

Slab

Answer 8

A rectangular shaped, semi-finished form that has a width to thickness ratio 2:1 or greater.

Question 9

Billet

Answer 9

A square-shaped, semifinished form that is less than 20 cm x 20 cm (8” x 8”)

Question 10

Finished form

Answer 10

A metal product that is shaped into its final form by working an ingot or continuous casting.

Question 11

Discontinuity

Answer 11

An interruption in the normal physical structure of a component

Question 12

Cold working

Answer 12

Plastic deformation performed below the recrystallization temperature, which leads to word hardening. Includes cold rolling, cold drawing, and cold extrusion.