PRODUCT SPECIFICATION
Modi Lastek 40 E
Pore free welding of dirty cast iron
GENERAL DESCRIPTION
-
Nickel cored electrode with a special coating for
welding grey and malleable cast iron.
- iron. It has a "pulsating" way of welding.
-
There is alternately a phase where the arc only
creates "heat" without deposit (oil and grease are
burned out of the base metal during forward motion)
and a phase (backwards motion) where a droplet on the
cast iron is projected.
-
In this last phase, the slag is pushed backwards and a
very large area around the molten pool stays visible,
permitting easy control of porosity on contaminated or
oil soaked cast iron.
-
Due to the pulsating properties (controlled heat
input) and the possibility to use the negative pole
for the first pass (slower cooling rate and thus less
hardening of the heat affected zone), a soft,
machinable and dense deposit without undercutting is
easily obtained.
APPLICATIONS
-
Recommended for welding cast iron that has to be
leak-tight and machinable, such as cracked motor
blocks, pump housings, gear wheels, rebuilding the bed
of a lathe, valve seats.
- Hardness : 130 - 160 HB
