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Author Topic: Welding reminder  (Read 4092 times)
rv_safetyman
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« Reply #15 on: November 11, 2008, 07:48:25 AM »

Jack, good reminder.  I avoid any welding for 1 hour prior to my quiting for the day (and then I still go back and do a fire check a couple of times, yes I am paranoid about fires Wink).

Another tip is to stop welding frequently and raise your hood to check around you.  Several times I have found something smoldering (I am not the best at housekeeping), and at least twice I found my clothing on fire Shocked Shocked.

Jim
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Jim Shepherd
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Len Silva
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« Reply #16 on: November 11, 2008, 08:38:36 AM »

Not being a welder but with a pretty good knowledge of electrical/electronic systems, it seems to me to just make good sense to keep the ground close to the weld just for the sake of the weld itself. A good consistent penetration must be affected by the resistance of the ground connection, is it not?
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JackConrad
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« Reply #17 on: November 11, 2008, 09:26:06 AM »

Onhe other important piece of advice: ALWAYS have a charged water line (hose) and/or a fire extinguisher nearby when welding or cutting with a torch or cut-off wheel. Yes, those sparks from a cut-off wheel can cause a fire also (No, Don't ask how I know)  Jack
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« Reply #18 on: November 11, 2008, 09:49:27 AM »

Do you think that the same precautions would apply to using a plasma cutter?
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« Reply #19 on: November 11, 2008, 10:56:49 AM »

Do you think that the same precautions would apply to using a plasma cutter?

Yes when cutting ferrous metals. I haven't seen any sparks with aluminum
but steels or stainless do shower sparks.

There is anywhere from 30 to 65 psi of air flow from a plasma torch and it will send
stuff flying...( Hot stuff too! )...
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« Reply #20 on: November 11, 2008, 11:12:13 AM »

Do you think that the same precautions would apply to using a plasma cutter?

Yes, The "hot stuff" from a plasma cutter, regardless of type of metal, is hotter than the ignition temperature of most common combustibles (wood, cloth, grass, etc.)  Jack
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« Reply #21 on: November 11, 2008, 11:15:12 AM »

Thanks,  I actually was asking about disconnecting electronics if cutting something on the bus.  A couple of weeks back I used it to open a hole in the right engine access door to put a paddle handle lock on it.
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