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Crusty welding rods

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Stan in Oly, WA

06-28-2007 12:42:31

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What does it mean when white powder or crystals form on welding rod? (Other than that I need to store them in a dryer place.) I figure it can't be a good thing because the manufacturer probably didn't put things in the flux which didn't need to be there.

Why would some brands be worse than others for this problem? I have some Weld-It brand (made for, but not by, Hobart) 7014 that came in a cardboard box that is badly corroded this way while some Hobart brand and Lincoln brand, also in cardboard, are perfectly free of any such problem.

If affected electrodes produce a normal arc and the slag and weld deposit appear normal, should I be concerned about the weld quality in non-critical applications?

Stan

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David Snipes

06-29-2007 10:53:20

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Re: Crusty welding rods in reply to Stan in Oly, WA, 06-28-2007 12:42:31

A good way to store welding rods to keep them dry is in an old dead refridgreator. You wire the light inside so it is always on. A 15 watt buld will keep it warm and dry. Its great for keeping your herbicides from freezing too.

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Stan in Oly, WA

06-29-2007 08:29:55

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Re: Crusty welding rods in reply to Stan in Oly, WA, 06-28-2007 12:42:31

Thanks, everyone. I appreciate the good advice.

Stan

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Farmall MD nut

06-29-2007 01:15:37

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Re: Crusty welding rods in reply to Stan in Oly, WA, 06-28-2007 12:42:31

Hi stan. They got wet a time or two and the flux has been partly crystalized.
They will be fine to use. A quicker way than baking them is to dry them out as you use them. Here's how: Every time you put a rod in the stinger, just stick it fast to the steel for about 10-15 seconds, or until flux stops smoking. No problem, have done this many times. Doug

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135 Fan

06-29-2007 21:05:54

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Re: Crusty welding rods in reply to Farmall MD nut, 06-29-2007 01:15:37

A direct short is hard on the machine, especially a buzz box. 7014 need to be kept dry but don't require a rod oven. For non critical stuff if they seem to weld OK, they will probably be fine to use. You could weld some equal size fillet welds on some short pieces of flat bar with the old rods as well as some new rods fresh out of the box and put them in a vice and break them and compare if there is any difference in how hard it is to break them or where the break occurs. Usually new rods will weld nicer due to a smoother arc which allows for better puddle manipulation. Dave

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Farmall MD

07-01-2007 07:59:31

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Re: Crusty welding rods in reply to 135 Fan, 06-29-2007 21:05:54

Direct shorts may be a little hard on a buzz box, but I don't think a few seconds here and there is going to hurt.

Also, when my boss bought our Miller Big Blue 251D the manufacture's break in recomendation was to basicaly do what we do to thaw pipes. Hook the ground to one end of a piece of steel, and fix the stinger to the other end. Run it for about a half hour like that. Hasn't done any damage, we've had that welder for over 10 yrs. Doug N

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mjbrown

06-28-2007 15:19:14

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Re: Crusty welding rods in reply to Stan in Oly, WA, 06-28-2007 12:42:31

Some brands may put a little parafin on their rods. I know an underwater welder and they dip regular rods in melted parafin to keep water out.

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old

06-28-2007 15:03:18

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Re: Crusty welding rods in reply to Stan in Oly, WA, 06-28-2007 12:42:31

They have got wet at some time. They can still be used but they will work better if you bake them in an oven for a while. Bake them at say 250-300, then after about 30 minutes turn off the oven and let cool before you take them out. I store my rods in an old refeigerator and they seem to stay dry

Hobby farm

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KEH

06-28-2007 13:54:05

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Re: Crusty welding rods in reply to Stan in Oly, WA, 06-28-2007 12:42:31

Tip for dry, cheap storage of electrodes. Get a piece of pvc pipe cut to proper length for rods and 2 caps. Glue one cap on, leave the other one to put on friction tight so you can put rods in and out.

Dont know about different brands.

On you last question, if the electrode burns normally and the weld looks good, it probably is.

KEH

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