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Posted by Randy Zimmerman on March 29, 2007, 2:46 pm
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Sounds like you are not running enough heat if you get a separation in your
bead. I would turn up the heat and hold a tight arc, almost dragging. When
you encounter a gap aim your rod toward the plate rather than the thin
walled pipe. Let the molten metal wash into the gap between plate and
pipe/tube.
The next step after that is to fill the gaps with a second rod. Gaps or
burn through over 3mm can be a pain to repair. I knock the flux off a
second rod and use that as a filler... much like running TIG except your
heat comes from your arc rod and you add more filler with bare rod. In
field work nothing goes as planned.
Randy
> Hi everyone. Advice for me, working in Britain.
>
> Been welding railing around a building today. Where horizontal tube
> meets flat plates of access ladders.
>
> Co. I work for knows only 6013 (rutile)
>
> I've used only 6010/6011 and 7018 in the past 1~1/2yrs.
>
> Welding machine is better end of AC buzz-box (fan-cooled, 180A).
>
> (i) do you need a more arc-gap / arc-length with 6013 than 7018? Seem
> to get a lot of trapped slag, parting the weld down the middle, if
> "try to really get into the corner" using style when fillet-cornering
> with 7018?
>
> (ii) 6013 seems just plain hard work compared to 6011 for this work
> going around a pipe - believe 6011 not so critical about slope, which
> can easily become "push" angle as trying to get around pipe, in that
> don't get slag trapping as there is very little slag.
>
> (iii) the penetration and fast freeze of 6011 - this is good and works
> for you (makes things easier) in this situation of wanting small
> penetrated positional welds?
>
> Richard Smith
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>
> Been welding railing around a building today. Where horizontal tube
> meets flat plates of access ladders.
>
> Co. I work for knows only 6013 (rutile)
>
> I've used only 6010/6011 and 7018 in the past 1~1/2yrs.
>
> Welding machine is better end of AC buzz-box (fan-cooled, 180A).
>
> (i) do you need a more arc-gap / arc-length with 6013 than 7018? Seem
> to get a lot of trapped slag, parting the weld down the middle, if
> "try to really get into the corner" using style when fillet-cornering
> with 7018?
>
> (ii) 6013 seems just plain hard work compared to 6011 for this work
> going around a pipe - believe 6011 not so critical about slope, which
> can easily become "push" angle as trying to get around pipe, in that
> don't get slag trapping as there is very little slag.
>
> (iii) the penetration and fast freeze of 6011 - this is good and works
> for you (makes things easier) in this situation of wanting small
> penetrated positional welds?
>
> Richard Smith