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can you all show someone how to back purge a bucket to repair the pin holes in the bottom. And what all is needed to do so.
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what kind of bucket???JIM
Owner Operator of JNT Mobile Welding & Repair LLC
Millermatic 350P Aluma Pro
Dynasty 200DX
Maxstar 150 STL
Trailblazer 302
Suitecase 12RC
Extreme 12VS
Extreme 8VS
Spoolmatic 30A
Miller HF251D-1
Passport Plus
Spoolmate 100
Hypertherm Powermax 45 and 85
Ingersoll Rand Engine Driven Compressor
Dake 75 ton H-Frame Press
JD Squared Model 32 Bender
Miller Digital Elite -
stainless
the bucket is stainlessComment
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back purge
Cover the open end with say cardboard taped to it with the argon hose going in and some kind of small opening at the top. Argon is heavier than air so as long as the vent is at the top it will workComment
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A question on back purging SS. Is it OK to use nitrogen for the back purge. Thanks!Tim
Many cordless tools...........
2 cordless hammers
2 cordless punches
1 cordless chisel
2 cordless screwdrivers, 1 + and 1 -
and a cordless adjustable wrench that also doubles as a hammer.....Comment
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back purge
We used nitrogen all the time at my previous employer. I believe it was cheaper than argon. Just make a small hole in the cardboard about 1/8 to 1/4 in diameter for the gas pressure to escape. Make sure you have the cardboard fastened really good. I would purge it really good and set the flow meter at about 5 to 7 lbs as you weld. If the weld starts to blow out at you, stop and either make the relief hole bigger or lower the purge gas pressure.Comment
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Thanks! I have N2 in my car tires so have to get set up to "air" them up. So I'll be basically set.Originally posted by bubbaweld View PostTim
Many cordless tools...........
2 cordless hammers
2 cordless punches
1 cordless chisel
2 cordless screwdrivers, 1 + and 1 -
and a cordless adjustable wrench that also doubles as a hammer.....Comment
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A research paper on Nitrogen purging from the AWS site: http://www.aws.org/wj/supplement/WJ_1975_01_s12.pdf
Looks OK for Nitrogen.Miller stuff:
Dialarc 250 (1974)
Syncrowave 250 (1992)
Spot welder (Dayton badged)Comment
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thinks for all the info it worked great for meComment
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