Lec5

Question 1

Continuous casting casting process

Answer 1

molten steel
ladle 
tundish
mould
secondary cooling
roll layout flame cut off

Question 2

What does a tundish do

Answer 2

Promotte inclusion flotation by maximising residence time

prevent thermal and chemical losses from the melt

Question 3

Purpose of the mould

Answer 3

primary source for heat extration and allows a solid shell to grow and support the liquid core

Question 4

scale of continuous casting process

Answer 4

huge factories can be 1 km long

Question 5

Mould fluxes

Answer 5

control lubrication (improve surface quality) and heat transfer (minimise defect formation)

Question 6

Mould powders

Answer 6

Mould powders inexpensive, but are asked to perform a number of operations that are vital to producing good quality steel castings

Question 7

What is vital to control and why

Answer 7

Control of heat transfer and lubrication is vital in minimising defect formation

Question 8

advantages of continuous casting

Answer 8

when combined with other processes can produce parts rapidly from liquid steel to coiled sheet in 7 minutes