Dear Mr. Singh,
Mr Prem Nautiyal had provided very detailed guidelines on ESSC.
The following documents definitely would be of interest to you. From my past
experiences in application of ESSC, I have noted that it works extremely well
with Magnetic oscillation especially with wider ( 5 inch) strips. The same
may not be true with smaller strips, however would definitely be worth
considering.
The last article is a
good description on various pros and cons of this process.
Thanks.
Pradip Goswami,P.Eng.
Welding & Metallurgical
Engineer/Specialist
Dear Mr.Amarjit Singh
I am assuming that you are using ESW
(2 layers ) and not ESW(single layer ) OR ESW (high speed).
I strongly
recommend that you use Soudokay consumables for ESSC.
Please visit
www.soudokay.com for more details and in India you can get these consumables
from Bohler Welding group.
The type of strip for 347 deposit is Soudotape
21.11 LNB and flux Record EST122.
Now coming to welding parameters for
ESSC of 60 X 0.5mm strip :
1) current =1250A ( DCEP)
2) 24V ( voltage
is governed by flux used and must be maintained within +/- 1V ).
3) Travel
speed = 170mm/min
4) Bead thickness = 5mm ( less bead thickness will give
poor bead shape and high dilution, while higher thickness greater than 5.5mm
will give LOF at the overlaps )
5) Dilution % = 8-10%
6) Stickout =
25-30mm ( distance between strip end to contact shoe)Note that dilution reduces
with increased stickout.
7) Bead overlap : 5-10mm.
Regards
Prem Nautiyal
( Godrej, Mumbai )
On Fri, 07
May 2010 10:42:12 +0530 wrote
>dear friends,
I have to carry
out ESSC of SS 347 on CS with 60mm wide strips. Please suggest
1)
suitable consumable combination
2) parameter for welding
regards,
--
Amarjit Singh
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CELL :
9820313278
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views expressed/exchnaged in this group are members personel views and meant for
educational purposes only, Users must take their own decisions w.r.t. applicable
code/standard/contract documents.
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.