Viewports

17/05/08

I have borrowed this inverter set to complete the welds on the hull viewports.  I am using Lincoln E7018 electrodes which are a “basic” electrode.  Despite the ordinary sounding name, these are special low hydrogen rods. These help eliminate the risk of cold cracking which can occur in the heat affected zone some time after welding is complete due to trapped hydrogen.  I am also using low hydrogen wire for the MIG process.

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