SECTION 6
Torch and Cut Quality
Note:
Note:
Note:
Note:
This is offered as a general guide. Refer to your torch manual for specifics on your equipment.
This is offered as a general guide. Refer to your torch manual for specifics on your equipment.
This is offered as a general guide. Refer to your torch manual for specifics on your equipment.
This is offered as a general guide. Refer to your torch manual for specifics on your equipment.
Problem
Problem
Problem
Problem
Reduced Electrode Life
Reduced Electrode Life
Reduced Electrode Life
Reduced Electrode Life
6-6
Possible Cause
Possible Cause
Possible Cause
Possible Cause
1) Skeleton cutting
2) Height control problems.
3) Piercing standoff too low.
4) Starting on edges with
continuous pilot arc.
5) Gas pressures too high or low.
6) Coolant flow below 3/4 GPM
(0.5 l/sec).
7) Gas or water leaks in torch
ESP-200 Plasmarc Cutting System
Troubleshooting
Corrective Action
Corrective Action
Corrective Action
Corrective Action
1) Cutting skeletons to facilitate their
Removal
from
the
adversely affect electrode life by:
a) Causing the torch to run off
the work.
b) Continuous pilot arc edge
starts.
c) Greatly
increasing
frequency of starts. This is
mainly a problem for O 2
cutting and can be alleviated
by choosing a path with a
minimum number of starts.
d) Increased likelihood that the
plate will spring up against
the nozzle causing double
arc. Careful attention by the
operator, increasing standoff
and reducing cutting speeds
will help mitigate these
conditions.
If the machine is equipped with a gas
torch, it may be more practical to use
it for skeleton cutting.
2) See crashing/diving in item 6.
3) Increase piercing standoff
4) Position torch more carefully or
use waste plate to start on.
5) Make appropriate adjustment
6) Check coolant level and flow
7) See torch manual
table
can
the