Description¡G
The C-NU
is cheaper than other nickel type electrodes. Its core
rod is of monel metal. Its weld metal has no inclination
to harden, and then machining is easy. But as its
cracking tendency is higher than other nickel type
electrode, its mechanical reliability of weld metal is
lower. Therefore, it is used for which machining is
required.
Application :
Filling up
the cavities of various cast iron.
Instructions
for welding :
-
Preheat and postheat are not alaways necessary in
general. Satisfactory results are obtained by 100 ~
200¢J preheating which varies in accordance with
kind, shape and size of base metal.
-
Dry
the electrodes at 70 ~ 100¢J for 30 ~ 60 minutes
before use.
Typical weld
metal properties: (Weld Metal Analysis)
Carbon
¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.70
Manganese ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.43
Silicon ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.54
Phosphorus ¡K¡K¡K¡K¡K¡K¡K..¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.¡K¡K. .0.011
Sulphur¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.0.003
Copper¡K¡K¡K¡K¡K¡K¡K..¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.¡K¡K.¡K....28.51
Molybdenum ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.. -----
Nickel ¡K¡K..¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.¡K.. Bal.
Iron ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.¡K¡K.1.35
Available diameter and recommended operating ranges¡G
¡@
¡@ |
F.
& H. ¡V fillet |
¡@ |
2.6 X300 m/m
3.2 X350 m/m
4.0 X350 m/m |
50 ~ 90
Amps
80 ~ 120 Amps
100 ~ 140 Amps |
|
Type
of power¡GA.C. or D.C.E.P.
Approvals¡G |