3-3. Welding Gun Duty Cycle And Overheating

CAUTION

WELDING LONGER THAN RATED DUTY CYCLE can damage gun and void warranty.

Do not weld at rated load longer than shown below.

 

Using gasless flux cored wire reduces gun duty cycle.

warn7.1 8/93

Definition

0

10

Minutes

Duty Cycle is percentage of 10 minutes that gun can weld at rated load without overheating.

.023 To .045 in (0.6 To 1.1 mm)

Hard Or Flux Cored Wires

100% Duty Cycle At 100 Amperes

Using CO2

Continuous Welding

.023 To .045 in (0.6 To 1.1 mm) Hard Or Flux Cored Wires

60% Duty Cycle At 100 Amperes

Using Mixed Gases

6 Minutes Welding

4 Minutes Resting

 

SB1.1 8/93

3-4.

Volt-Ampere Curves

 

 

 

 

 

 

 

 

 

 

 

Volt-ampere curves show minimum

 

 

 

 

 

 

 

and maximum voltage and amper-

 

35

 

 

 

 

 

age output capabilities of unit.

 

 

 

 

 

 

Curves of other settings fall be-

 

30

 

 

 

 

 

tween curves shown.

VOLTS

 

 

 

 

 

 

25

 

 

 

 

 

 

 

 

 

 

 

 

 

DC

20

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

0

0

50

100

150

200

250

DC AMPERES

va_curve1 4/95 − 199 212

OM-927 Page 10

Page 14
Image 14
Hobart Welding Products 210, M-10 Welding Gun Duty Cycle And Overheating, Volt-Ampere Curves, Definition