EasyManua.ls Logo

Unitrol SOLUTIONi - Page 74

Unitrol SOLUTIONi
87 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
SECTION D, PAGE 6
SOLUTION IN PRODUCTION
D2.4: If you are NOT using the DIFFERENTIAL PRESSURE TRANSDUCER,
set INITIAL SQUEEZE TIME long enough to allow the electrodes to close and get
to full weld pressure before starting heat. Then set the SQUEEZE TIME to the
time it takes to close and get the electrodes to full force between the repeat
sequences.
If you set INITIAL SQUEEZE = 00, the control will use SQUEEZE TIME for all
delays.
D2.5: FULL RWMA WELD SEQUENCE
Enter the desired values in each line for the additional RWMA welding function
using the sequence above as a guide.
First heat sequence.
Non-heat time after the end of PREHEAT
PREHEAT TIME 00CY
PREHEAT 00%
COOL AFTER PREHT 00
SQUEEZE
TIME
PREHEAT
UPSLOPE
WELD TIME
QUENCH
TEMPER
HOLD
DOWNSLOPE TIME
PREHEAT
CURRENT
UPSLOPE
CURRENT
WELD
CURRENT
DOWNSLOPE
CURRENT
TEMPER
CURRENT
TIME
TIME
TIME
TIME
TIME
TIME
COOL
TIME
FORGE FORCE
FORGE DELAY TIME MAY BE
INITIATED AT SOME OTHER
POINT IN THE WELDING CYCLE
ELECTRODE
FORCE
RESISTANCE WELDING CURRENT
OR ELECTRODE FORCE
COOL AFTER PREHEAT
The sequence PREHEAT, COOL AFTER PREHEAT, WELD works
amazingly well for welding GALVANIZED STEEL. See schedules in the
back of this direction book for the GALVANIZED STEEL sequence.
PULSATION SEQUENCE
3 PULSES SHOWN