concave cut surface profile
GB
•
Forward speed of torch too
fast
•
dirty and/or damaged
nozzle or nozzle size too
small for the thickness to be
cut
•
Cutting oxygen pressure too
low
adjustment recommendation for Perfect machine cutting
narrowing of kerf
(divergent)
•
Forward speed of torch
too fast
•
distance between nozzle
and sheet metal too big
nozzle
Melted down top edge
with adherent slag
•
Cutting oxygen pressure
too high
•
Heating flame too strong
•
distance between nozzle
and sheet metal too big
Lower edge rounded
Single gouges
•
Forward speed of torch
too slow
irregular cut surface profile
•
Cutting oxygen pressure too
low
•
dirty and / or damaged
nozzle
•
Forward speed of torch too
fast
•
dirty and / or damaged
narrowing of kerf
(convergent)
•
Forward speed of torch
too fast
•
distance between nozzle
and sheet metal too big
•
Cutting oxygen pressure
too high
•
Forward speed of torch
too fast
•
dirty and / or damaged
nozzle
Excessive cut drag line
depth
•
Scaled or corroded or
dirty sheet metal surface
20/222
Edge melting on
•
Forward speed of torch too
slow
•
Heating flame too strong
•
distance between nozzle and
sheet metal too big to too
small
•
Nozzle size too big for the
thickness to be cut
•
Cutting oxygen pressure
too high
Concave cut surface
beneath top edge
•
Cutting oxygen pressure
too high
•
dirty and / or damaged
nozzle
•
Forward speed of torch too
fast or irregular
•
distance between nozzle
and sheet metal too small
•
Heating flame too strong
Excessive cut drag line
depth
•
distance between nozzle
and sheet metal too small
•
Flame too weak
string of solidified droplets
•
Heating flame too strong
•
distance between nozzle
and sheet metal too small
•
Scaled or corroded sheet
metal surface
•
distance between
nozzle and sheet metal
too big Step at bottom
edge
•
Forward speed of torch
too fast
•
dirty and / or damaged
nozzle
•
Forward speed of torch too
fast or irregular
•
distance between nozzle
and sheet metal too small
•
Heating flame too strong
•
Flame extinguished with
a ban