6
Start-up and weld quality check
Page 44
Stud welding units
Operating manual
Date:
July 2021
INTRA 2100/1400
07.2021 / EN
Rev.:
A
A pilot current flows through the external welding circuit “Welding cable - Stud -
Workpiece - Earth cable”.
9.
The gun coil activates and lifts the stud from the workpiece surface. The “Contact”
LED goes out.
10.
The main welding current is switched on.
When the weld time ends, the solenoid actuator is depowered.
11.
The stud dips into the melt bath, the arc goes out, and the weld current is switched
off.
12.
Pull the welding gun as straight as possible off the stud.
13.
Before the welding system is used for series production, the quality of the weld joint
must be checked (see the following chapter).
14.
To make sure the weld parameters are correct, always do some test welds before
starting work.
15.
If the weld results are poor, optimize the weld parameters.
The test welds must be repeated until the optimal weld quality can be achieved.
