Dantheman45
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Hi lads I often run hi.low rods . I have a rod quiver to keep them warm but should I be baking them iin an oven or would the quiver be ok
I don't know TBHHi lads I often run hi.low rods . I have a rod quiver to keep them warm but should I be baking them iin an oven or would the quiver be ok
I know that they can be baked only onceIt depends on how they are stored, if left in a garage or shed they will absorb moisture through damp winters and it is best to bake them first, if you have any doubts then bake them anyway.
Bake 7018 means put them in the oven 2 hours at 360°CI once read that you can bake them multiple times but you have to watch how long and how big is the temp, but the boss where i sometimes work told me when he was working on a ship they had rods in the oven 24/7.
It would be the best to contact that specific rod manufacturer and ask him the details about baking and storing while not in use
Holding them in a quiver at 75-100°C for a good 4 hours will reduce the hydrogen content to almost baked levels.
It depends what Steel you’re welding really. If you’re welding ductile steel and it has a low amount of stress it would be unlikely to crack even if you soaked your rods in water.
Rods from a quiver do run nicer though and as Al said you will see less porosity in your starts if your rods are baked or at least warm.
Saying that with the correct start technique you shouldn’t see any porosity really.
They don’t run that greatCrikey Brad, never tried watercooled rods!!!!!!!!!!!!!!!!!!!!!!!!!!
They don't flow then.
100oc will only remove "loose" moisture.......you need 350 - 450 oC to remove the "combined" moisture..........the coatings are made from minerals, if you look at the chemical formula for some minerals it will include some H2O.......eg Al2O3.6H20 (I made that up)........this is moisture that is part of the molecule and doesnt give up easily.......this is the last bit of moisture that needs to be removed........manufacturers try to use minerals without it but sometimes you just need to accept it.....this combined moisture can be the difference between below 5 Hdm and below 10 Hdm.
Warm or Hot rods run better as the temperature is nearer that where the volatile elements start to form a plasma......so its easier