On 2/8/2019 3:58 AM, Richard Smith wrote:
>
>> >>> Hi Gunner >>> >>> The "best" I met of welding on heavy hot-dip zink galv. which was
>>> infeasible to remove was welding in new deck-supporting truss
>>> structure on a seaside holiday-town pier.
>>>
>>> Because it is
>>> * a truss with slender members not blocking or setting up eddies in
>>> the air
>>> * there is a constant onshore breeze
>>> this was the one-and-only occasion where you really could keep your
>>> head out of the zink-fume plume and it was OK.
>>>
>>> Welding transversely across the truss members, you could look at the
>>> weld end-on and manipulate the rod to puddle-up a correct-shaped
>>> fillet despite the galv. kicking the arc around and the fume kicking
>>> the weld-pool around.
>>> And the arc was very lilac coloured indeed...!
>>>
>>> Best wishes,
>>> Rich S
>>>
>>
>> How did you rust-proof your welds?
>
> Galv.-spray. Zink-rich paint. Only thing you can really do (?)
> Rich S
>
What, you didn't build a vacuum chamber around each weld area and use vapor deposition? Shame. LOL.
>
>> >>> Hi Gunner >>> >>> The "best" I met of welding on heavy hot-dip zink galv. which was
What, you didn't build a vacuum chamber around each weld area and use vapor deposition? Shame. LOL.