14
6 Principles of Operation
With the system correctly connected and the power supply turned on, the operator turns
on the main switch that energizes the wire feeder controls. The operator then loads the
wire as explained in Section 5, adjusts the pressure regulator as specified in spray tables,
sets the voltage and amperage potentiometers on approximate settings given in tables, and
is ready to fire up.
Arc Control (Patented)
The arc voltage controls a sensor on the PC Board. The sensor operates from the power
leads and if a voltage drop occurs, as happens when the wire shorts, the sensor slows or
stops the wire from feeding. When the arc is reestablished wire feed is resumed at normal
rate. This happens very fast and does not effect coating quality.
Low Energy High Deposition
The Thermion Bridgemaster Model is capable of spraying 3/16" diameter aluminum,
zinc, or zinc/aluminum wire. The amperage requirement for spraying this wire is 350-
500 amps. At this energy level the spray rate can 42 lbs/hr for aluminum, 150 lbs/hr for
zinc, and 110 lbs/hr for zinc/aluminum. Deposit efficiencies of up to 70% have been
obtained with these materials. Also, the smoke generated can be considerably less than
previously experienced using smaller diameter wire
SPRAY RATES
Wire Size
Material
AMPS
LBS/HR
KGS/HR
Efficiency
1/8”
(3.2mm)
Aluminum
200-450
28lbs (13 kg)
62%
3/16”
(4.8mm)
Aluminum
200-450
38lbs (17.3 kg)
77%
1/8"
(3.2mm)
85/15
200-450
75 lbs. (34 kg)
60%
3/16"
(4.8mm)
85/15
200-450
97 lbs. (44 kg)
70%
1/8"
(3.2mm)
Zinc
200-450 80 lbs. (36.4 kg)
58%
3/16"
(4.8mm)
Zinc
200-450 135 lbs. (61.2 kg)
65%
Summary of Contents for BRIDGEMASTER
Page 20: ...7 3 System Assembly drawing shows optional straighteners...
Page 30: ...17 6 2 1 Angle Spray Nozzle 3 16 4 8 mm Wire Head...
Page 31: ...18 6 3 Air Nozzle Alignment 1 8 3 2 mm Wire Head...
Page 32: ...19 6 3 2 Angle Spray Nozzle 1 8 3 2 mm Wire Head...
Page 57: ...44 9 4 1 System Wiring...