rod oven

[Tim R.]

I have a piece of 13'' dia steel pipe that I might have found a use for. I mainly run around fixing farm machinary. anyway I thought a rod oven might be nice to have mainly for my 7018 rods. I think I'll burn hedge and oak in the pipe for heat. The pipe will lay horizontal but I don't know how to put the rods in the fire I have some old rod canasters with the pop-on lids. If I made a shelf inside to hold the canasters closed one end of the pipe and put a door on the other end and a ''chimney'' at the closed end.

Do you think it would work or would the wood smoke contamanate the flux if it got in the canaster. Just an idea so far thought I would ask before I tried it.

[Rocky D]

The wood smoke has particulate matter in it, and may very well contaminate your rods. It would also be difficult to maintain proper temperature. 7018 rods must be kept at a certain temp. A heat lamp would do you better.

[the hat]

Any low hydrogen rod sould be kept warm and dry as soon as you open the package,It sucks moisture like a sponge.I like those good rod keepers with a cloth bag of dessicate to carry on the truck.Another option is to spend the bucks and buy a good premium rod

[Eric Carroll]

I made one out of sheet metal and parts from my old kitchen oven.It has shelves made of expanded metal and the temp on the knob is about 10 deg from right.The store bought one for three hundred pounds of rods cost $700.

[Dale42]

What temperature are tese ovens ?

[bjdenommee]

I saw one that worked off the muffler from the mchine, iwas kinda of piped into the rod oven.

bernie

[enlpck]

Electric heat is the way to go. Burning fuel, even clean fuel, defeats the purpose of the oven-keeping the rod clean and dry-as combustion produces moisture as a byproduct.

Temp depends on the rod and the purpose. For example, for non-critical use, 7018 (a lo hydrogen rod that MUST be kept dry) need only be kept sealed in an airtight carrier, as long as moist air isn't allowed to get in, or in a heated box (a lightbulb works as a heater) 50 degrees or so above ambient. If the LO-HY property is important (structural work, pressure vessel work, pipelines, highly stressed joints, etc) then an oven is needed. 7018 is generally kept at 250-300 degrees F--each manufacturer will specify the temp range for each of their rods.

Note that some rods do not want to be heated, and all rods have a lifetime in heated storage. For example, 6010 will be damaged if stored hot, and needs some moisture in the flux to run smooth.

[fredo]

can you vacuum seal them after opening the the box?

[Roger]

Hobart welding magazine had story about engine exhaust heated rod box someone was making. It was heated by exhaust gases flowing through tube in box so rods were not exposed to exhaust gases. It had a valve to control heat and thermometer. I haven't seen or used this product but wonder why not use portable electric rod oven.

[reedfish]

I remember somebody a while back said a toaster oven works great as a small heater for 7018 rod.......so I bought a toaster oven at a garage sale and IT WORKS GREAT. I never preheat more 7018 rods than plan on using and I made up PVC pipe tubes with screw on caps, throw in some silcate packs while using some duct tape around the seams for extra seal protection for long term storage. Works for me!

[mwk]

What about a microwave oven? Would they work for storage and/or heating and drying.
Matt

[malibu101]

MWK- first rule of a microwave oven, no metal in it.
Makes lots 'o sparks

[mwk]

Don't I feel stupid, I guess it was before I turned my brain on in the morning!
Matt

[mrimpact]

what kind of welding business are you in to need a rod oven? I know many major fabricating companies that use 7018 and they don't even use oven(s)? What's the dillio? I would understand if you worked for a major pipeline company or some kind of certified welding submarine company! Maybe a few rod guard cans might save you a whole load of money and headaches!

[cope]

Originally posted by mrimpact
what kind of welding business are you in to need a rod oven? I know many major fabricating companies that use 7018 and they don't even use oven(s)? What's the dillio? I would understand if you worked for a major pipeline company or some kind of certified welding submarine company! Maybe a few rod guard cans might save you a whole load of money and headaches!

Anyone who welds with 7018 in large quantities and doesn't use arod oven is asking for trouble. These rods suck in moisture like a vacuum pump and if not used quickly need to be kept at the proper temp in an oven. Certified or not, they need to be handled properly.