CH. 7 Melting and pouring

Question 1

what are the 3 methods of melting process

Answer 1

batch, tap and charge, and continous

Question 2

what is the purpose of refractory materials

Answer 2

to protect against heat, abrasion, and impurities.

Question 3

What is inoculation

Answer 3

the iron melting proccess of adding various alloys, mostly silicon based to the molten iron to promote graphizations.this reduces shrinkage, improves fludidity, better machinanability,

Question 4

What is an induction furnace

Answer 4

A furnace that produces an electro magnetic field using spinning copper coils

Question 5

cupola furnace

Answer 5

A cylindircal shaped furnace used to melt cast iron from the heat generated by coke and scrap materials. Cheapest and easiest way to produce melt cast metal.

Question 6

how is the inner diameter of the cupola related to the output of the furnace

Answer 6

it is directly proportional to the output of the cupola furnace

Question 7

EAF

Answer 7

Where electrodes charge the metal causing it to melt.

Question 8

difference between direct and indirect EAF

Answer 8

direct: heat is subjected directly to the material being heated. indirect: the heat from the arc burns directly above the charge material

Question 9

Calcination

Answer 9

burning

Question 10

what is the size of the cupola determined by

Answer 10

the diameter