heating your sticks

[Don]

Does it really make a difference if you heat up your welding sticks before you weld with them? I was told that it would help to dry them out. Like if it was humid out side

[enlpck]

depends on the stick type. Few types work if they are dripping, 6010 and 6011 like a bit of moisture, LOHY rods like 7018 need to be DRY, and have special baking requirements, for best results, but for noncritical applications, as long as they arn't rusty and the flux is intact, the only thing you notice when they are moist is that they are sticky and the arc is a bit off. Most other rods... keep closed in a dry container and they are ok w/o heating.

[Snidley]

If 7018's are contaminated with moisture you will know right away. They are harder then ususal to get going and as well as the arc quality issue, there will also be excessive smoke from your rods. These rods really need to be kept in an oven. If you don't have an oven - don't get them. With moisture inclusion the welds becomes more brittle.

An alternate choice for this is 7014. no special storage other then to be kept in a dry place.

[oneweldingmonkey]

now i understand why to heat and dehumidify Lh rod but if you are on a service truck chasing rigs around i have stuck some big parts together and some small ones without a rod oven i am sure there is a time and a place where you would have to heat but i have never had to welding 10 yrs and a speed tube with o-ring seals works for me

[oneweldingmonkey]

i guess what i was saying dont keep your rod in a bucket of water and expect it to work

[DesertRider33]

I use 7018 on the truck without an oven, just keep it sealed in original pkg untill needed, then store in sealed rod tube thereafter.

[El_Lloydeo]

any SMAW electrode that ends in a 5,6, or 8 should be kept in an oven. theys are the low hydrogen type. if you don't keep them in an oven, might as well buy a 7014. F4 = Low Hydrogen

[Burning2nd]

2 code.. if you have a low hrydrogen rod not stored in a heater your doing a no no...

dont let the cwi see that.

[pulser]

See this old post regarding the difference between low hydrogen rod like 7018 and cellulose rod like 6010.

http://weldingweb.com/showthread.php...highlight=7018

[oneweldingmonkey]

ok today at work i took some 3/8 x3 mild steel strap and butt welded it welded it vert up one set with a brand new never opened can and one with some older rod that was stuck in a speed tube god knows how long ago put them both in a 100,0000 psi press and they both just bent over not a single crack so i think it is a way to sell heaters i understand the principle of them but come on really i am a bad welder cause i dont heat some rods come on

[rotavia]

If I'm doing welds that will be Xrayed or other critical welds I put the 7018 in a rod oven. Otherwise......just use em' if they are in good shape and dry.

[Oldiron2]

ok today at work i took some 3/8 x3 mild steel strap and butt welded it welded it vert up one set with a brand new never opened can and one with some older rod that was stuck in a speed tube god knows how long ago put them both in a 100,0000 psi press and they both just bent over not a single crack so i think it is a way to sell heaters i understand the principle of them but come on really i am a bad welder cause i dont heat some rods come on

It isn't that simple, and you don't understand the reason for the low-hydrogen rod.
The short answer is that some steels, not including mild steel, have elements in them which will combine, at least temporarily while welding, with any hydrogen present. When the weld cools, it will un-combine but be trapped within the weld, causing cracks.
Doing a search here or reading some good welding books will give more details and a better understanding.

[pulser]

Originally Posted by oneweldingmonkey

ok today at work i took some 3/8 x3 mild steel strap and butt welded it welded it vert up one set with a brand new never opened can and one with some older rod that was stuck in a speed tube god knows how long ago put them both in a 100,0000 psi press and they both just bent over not a single crack so i think it is a way to sell heaters i understand the principle of them but come on really i am a bad welder cause i dont heat some rods come on

You're right, it's a damn conspiracy to sell ovens, jack up the price of rod, sell more hermetically sealed cans! A little hydrogen never hurt no weld!

Plus you got all these bleeping engineers and metallurgists making up this cr@p about hydrogen embrittlement, cold cracking, and such, just to publish some thesis, welding journal article, or sell some book. My 7018 runs hotter and better after a quick dip in my bud light. And if some code job wants my rod heated, I don't pay no attention to AWS recommended time and temperature, I just toast it up a bit with my OA torch and start laying it down, hot and wide.

Here's some kind of hooey posted up by a blood sucking organization who is apparently trying to make some money off this whole hydrogen fiction.
http://www.twi.co.uk/content/jk45.html

[Supe]

There's the Pulser we've come to know and love

I think I'm going to throw my EPRI papers in the trash while I'm at it.

[oneweldingmonkey]

i just want to know how many of the people saying that i am wrong accually do this 10-12 hrs a day 6 days a week like i do cause i weld with alot of other welders and i have never seen a rod oven on any other rigs and when you ask some of the old schoolers that been welding longer then i been alive they say "its rod not a cake if it was meant to go in a oven it would be womens work"

[oneweldingmonkey]

not my words i just repeat really that is what they say

[David R]

I have used 7018 with out the oven until the last couple of years. I can tell the difference. It runs smoother for me. So both ways. I just kept an unopened can for jobs that needed it.

Improperly stored 7018 welds WAY better than any of the 60xx and 7014.

To quote Tozzi " Like a fresh biscuit out of the oven"

David

[Hammack_Welding]

I agree, there is no comparison. Anyone who has run a low-hy rod out of an oven beside an improperly stored rod should EASILY tell a difference. I have seen multiple times that I was running rods off the truck that had been there a couple days, and noticed porosity starting to appear in some of the welds. It's not some gimmick, its a fact. I honestly don't know any experienced weldors that will openly admit that using improperly stored Low-hy rods will not make a difference...

[rotavia]

If you are in a high humidity area they'll soak up moisture more so than in a dry climate. If in doubt use a rod oven I guess.

[WHughes]

Eastern Washington isn't considered a high humidity area and 7018 left in my garage for several days will gather humidity. Its very noticable when you strike an arc and the moisture shoots from the end of the rod into the weld puddle. Once it gets hot enough and the moisture is gone, it will run fine.

[oneweldingmonkey]

i would still like to know how many of you work in the field with your oven

[denrep]

Originally Posted by oneweldingmonkey

i would still like to know how many of you work in the field with your oven

Aye!


Attachment 31712

[mike r]

IF you are doing anything X-ray, they better be in an oven or else. any low hy 14 18 24, storage; 250-300
degrees. besides, if any of you guys do enough code work,you would know this. like hammock said,
i'll agree here POROSITY,POROSITY,POROSITY.,and not to mention all the rework.
my.02

[daddy]

I don't have a rod oven at work, or home.
At home I cook 'em on the woodstove during the heating season, and otherwise keep them in sealed containers as much as possible.

Notwithstanding the technical reasons already mentioned, I notice a distinct difference in how smooth a hot,and dry rod runs compared to one stored in even moderate humidity.

[David R]

Originally Posted by oneweldingmonkey

i would still like to know how many of you work in the field with your oven

I do when needed. I plug it in to the ranger 250.

Denrep, are you sure that's not a big thermos?

David