[TowerTalk] Rohn Tower Damage Pictures

[dcckc]

>The selection of welding rod can make a significant impact on a weld's
>ability to hold.  If the worker selected the wrong rod because it was too
>far to walk to the crib, that could explain a batch of bad welds.  Likewise,
>a rod tube (a collection of unused welding rods) could have been mis marked
>or anything.

I would be surprised to say the least if Rohn is using stick welders I am 
sure they use wire welders for the increase in production and less splatter 
to be cleaned before dipping the chance of getting the wrong wire would be 
remote as they probably dont use a large selection of wires in production

>Likewise, the metal tubes or the rod material could also be at fault.  The
>Rockwell rating of the metal is not observable from a picture.  It takes the
>proper instruments to determine if a batch of improper hardness was used.
>In the event that the incorrect ingot was selected at the mill, the whole
>batch of 2000# tubes could be bad.  I hope they can trace them down if this
>is the case.

Having worked in a steel mill for nearly 12 years in the past this would be 
a easy  one to verify as the paper work on any piece of steel to a 
customer  is easily traced including all chemistry from the melt to the 
shipping door. It could be the wrong steel but is highly unlikely  as 
almost any steel that can be made into this size tubing would be easily 
welded by a wide range of wire and heat combinations. Having said all this 
my guess after supervising employees for nearly thirty years is this is 
more likely a case of under or missed trained worker or a disgruntled 
worker. All to often people are under trained when put into production 
lines and I have seen far to many cases of unhappy workers who make bad 
product when they know they are quitting that day
Dave/WB0PKK


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