TANK FLOOR BOTTOM REPLACEMENT
TANK FLOOR BOTTOM REPLACEMENT
(OP)
We are replacing a API 650 tank botom. The welding is under going but it can be seen that there are many bulges on the tank bottom . It appears like air pockets under some places. The bulged sections also move up and down with weight movement over them.
It does not appear to be normal. Is it caused by wrong welding sequence / weld method / soil compacting underneath etc.
Any help will be appriciated.
It does not appear to be normal. Is it caused by wrong welding sequence / weld method / soil compacting underneath etc.
Any help will be appriciated.





RE: TANK FLOOR BOTTOM REPLACEMENT
RE: TANK FLOOR BOTTOM REPLACEMENT
But what is meant by " de-coiled plates without temper pass". I am under the impression the tank bottom plates are flat only and not like curved plates for tank shell.
Also this is acceptable as per code or there is some limiting specification indicated some where
RE: TANK FLOOR BOTTOM REPLACEMENT
http://www.stormingmedia.us/26/2682/A268214.html
RE: TANK FLOOR BOTTOM REPLACEMENT
One of the tank standards has or used to have a statement that out-of-plane distortion equal to 1% of the radius was not uncommon. There's not a specific limitation on it, though.
The alternative to decoiled plate is "mill flat" plate, except that much of the mill flat produce comes off coil lines anyway- only it's decoiled at the mill instead of at a processor's facility.
RE: TANK FLOOR BOTTOM REPLACEMENT
RE: TANK FLOOR BOTTOM REPLACEMENT
Joe Tank
RE: TANK FLOOR BOTTOM REPLACEMENT
RE: TANK FLOOR BOTTOM REPLACEMENT
RE: TANK FLOOR BOTTOM REPLACEMENT