Once sided coating , also know as eccentric coating is not accepted and to be rejected en-lot as,
It produces uneven burning resulting in porosity at times and slag (due to creation of undercuts) inclusions.
Uneven bead shape, spatters at times.
May not produce radio graphic quality welds and repairing them is much more expensive.
You can swivel the electrode to 180 deg. in the holder to check whether it burns less on the same side or not.
If not, correct the torch / travel angle before before deciding the factor.
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It produces uneven burning resulting in porosity at times and slag (due to creation of undercuts) inclusions.
Uneven bead shape, spatters at times.
May not produce radio graphic quality welds and repairing them is much more expensive.
You can swivel the electrode to 180 deg. in the holder to check whether it burns less on the same side or not.
If not, correct the torch / travel angle before before deciding the factor.
Sridhar
-----------------------------------------------------------------------------------------------------------------------------------------------
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of welding
Sent: Saturday, March 02, 2013 3:31 PM
To: materials-welding@googlegroups.com
Subject: [MW:16921] Electrode coating
Sent: Saturday, March 02, 2013 3:31 PM
To: materials-welding@googlegroups.com
Subject: [MW:16921] Electrode coating
Dear Expert,
i have received some low hydrogen electrodes with damage coating (i.e. it is uneven like one side more coating and another side less), i want to know what will be the effect and it is acceptable or not.
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