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Unitrol SOLUTIONi - Page 75

Unitrol SOLUTIONi
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SECTION D, PAGE 7
SOLUTION IN PRODUCTION
Number of times the WELD TIME will
repeat with PULSATION COOL cycles
between the WELD pulses. The example
in section D2.4 3 PULSES of 2 WELD
CYCLES each.
Increasing heat starting at the Start
UPSLOPE% and finishing at the WELD
HEAT% over the UPSLOPE TIME.
Decrease heat starting at the WELD
HEAT% and finishing at the
DOWNSLOPE at END% over the
DOWNSLOPE TIME.
Fixed heat of POSTHEAT% over
POSTHEAT TIME.
QUENCH = non-heat time before
TEMPER sequence.
Fixed heat of TEMPER HEAT% over
TEMPER TIME.
NUMBER OF PULSES 00
PULSATION COOL 00CY
UPSLOPE TIME 00CY
Start USLOPE at 00%
PULSATION is handy to use when welding thick metal (.120” or thicker).
Divide the number of weld cycles found on a welding chart for this
thickness by 5 and Set PULSATION COOL = 3.
PULSATION can also be useful for welding very near the edge of a
sheet. If set properly it will minimize metal expulsion from the edge.
or when welding near the edge of a sheet.
DOWNSLOPE TIME 00CY
DOWNSLOPE at END00%
POSTHEAT TIME 00CY
POSTHEAT 00%
TEMPER TIME 00 CY
TEMPER HEAT 00%
QUENCH TIME 00CY
QUENCH & TEMPER sequence is useful for welding spring steel or
other higher-carbon metals. The QUENCH TIME lets the nugget
area cool down, and the TEMPER TIME reheats the nugget to a
lower temperature to increase ductility of the weld nugget and area
around the weld nugget.