HM

Question 1

Minimum diameter HM coil we can sell?

Answer 1

Generally 60”. Large pull butts (3-4”+) get dicey

Question 2

What do scalper roughers cost?

Answer 2

$62.05 for 2, $31 for 1

Question 3

What do scalper finishers cost?

Answer 3

$48.80 for 5, $9.76 for 1

Question 4

HM trim acceptance

Answer 4

-0, plus 1/4”

Question 5

What to do if Ingot is stuck in RM

Answer 5

If the slab is stuck in the mill and there is force on it, keep the coolant on the rolls and slab. Cutting it up or taking it to the basement is much less risk then fire cracking the rolls.

If the slab is between the rolls in the mill under force for more than 5 mins…you gotta take the rolls out.

Question 6

How to tell if a roll mark is too bad?

Answer 6

Pencil. Smooth edges = good, rough edges & catching = bad

Question 7

How to know if in roll force

Answer 7

1200 ft per min

Question 8

How to know if idling

Answer 8

600 ft per min

Question 9

How many papers go in a book

Answer 9

45

Question 10

What HM stands does HGC have to be locked out to change WRs on?

Answer 10

3 & 4

Question 11

How long does C160 air practice take?

Answer 11

~15hrs per Shonique

Question 12

What is the code for changing HCM WRs for pitting?

Answer 12

PI

Question 13

What is the code for changing HCM WRs for roll marks?

Answer 13

RM

Question 14

What is the code for changing HCM WRs for count?

Answer 14

RT

Question 15

What is the code for changing HCM WRs for chock failure?

Answer 15

CF

Question 16

What is the code for changing HCM WRs for bruising?

Answer 16

BR

Question 17

What is the code for changing HCM WRs for spalling?

Answer 17

SP

Question 18

How close do rolls have to be to the routine limit to allow operators to enter RT as the reason for changing?

Answer 18

Within 100

Question 19

How much does a 5 stand weight - recovery hit?

Answer 19

~3000 lbs

Question 20

What’s the most common reason for blown centers

Answer 20

Jacks too high in 5 & 6

Question 21

How do we stay gauge after a backup change?

Answer 21

At the beginning & after 3 passes on the 1st ingot

Question 22

What’s the goal for HM sideset

Answer 22

0

Question 23

What’s the goal for HM %c?

Answer 23

.4 or .45, but varies on product. Some go as low as .3 like light gauge C343H.

RR is .2 above target

.8 is typically scrap

Anything negative is scrap

Question 24

Is st 6 sled pit a confined space?

Answer 24

No

Question 25

Are stands 1-5 sled pits a confined space?

Answer 25

Yes

Question 26

Are backup pits a confined space?

Answer 26

Yes

Question 27

How are tension bars set

Answer 27

Bar 1 - half inch gap between the bar & template

All other stands: sliver of a gap, basically laying on top

Question 28

What is normal Torque @ RM?

Answer 28

1.6 for everything except C160, & C160 is normally 1.4 to prevent splits, & we see signs of splits we go to 1.2

Question 29

What is normal voltage @ run?

Answer 29

700 volts, below is issue w/ 15KV. 650 is a problem

Question 30

What is the absolute max for the shear sump?

Answer 30

40” gets coolant into the position transducer & is an 8 hr event for maintenance to replace the cylinder

Question 31

Does C64Z go to trays or saddles?

Answer 31

Trays

Question 32

How to restart pusher?

Answer 32

Turn on, purge, relight. Can load charging line but pusher must be above 650* for 3.5 hours before can cycle shoes.

Question 33

What areas of thr scrap conveyor do doors have to be open to clean?

Answer 33

The scrap door and the sides of the coil car.

Question 34

Scalper table position for KISS calibration

Answer 34

59.6” +/- 0.6”

Question 35

Whats the shortest 5 stand you can do?

Answer 35

320” is the shortest 5 stand you can do

Question 36

Rm roll balance pressure

Answer 36

2000 lbs. Yoke balance 800 lbs. Relief valves are set at 2300 lbs.