22
5.4 Casting without temperature measurement without premelting
1-14. perform preparational
jobs, excluding item 11.
⋅ see chap. 5.1 „Start here…“
15. Take muffle off the preheating
furnace and place it in the middle
of the muffle chamber (7)
⋅ Support plate has to be clean
(first insert insulating and centering tool, chap.5.1)
16. Close muffle chamber (7)
⋅ Muffle may not shift, close chamber as far as it will go
17. Tighten chambers
⋅ Swivel the locking lever upwards (vertical)
and press on in direction to the machine.
18. Melting
⋅ Turn step switch to „1“, turn rotary switch from „0“ to
"max=10" – LED’s yellow and green are "ON" and
the vacuum automatically starts.
⋅ During melting process a performance reduction with
Argon rinsing can at any time be initiated with the Argon
key, however at the time of casting there must be a
full vacuum in the chamber!
19. Temperature sensor and casting
⋅ If the metal surface is ripped and the oxyde layer
has travelled in direction to the crucible’s wall:
the step switch is set to step 2
⋅ If you wish to change set temperature, pls. press key
„P“ and adjust it with the arrow keys (2,3) and confirm
with „P“.
20. Metal forming pressure
(automatically)
⋅ The locking pestle releases the bottom hole for casting.
After 0,5 sec. pressurization is activated
(Argon or compressed air). Vacuum stops automatically.
⋅ Red LED (18) is blinking.
21. Ventilating chambers
⋅ Set performance control to 0.
⋅ After 20 sec. the step switch has to be set to 0.
To Next Page
Loading...