Subject	Argon gas, and there's a good reason for it.
Posted by	jkeyser14 on January 31, 2006 at 6:06 PM
	This message has been viewed 28 times.
In Reply To	what type of 'gas' are they 'pouring' into it? posted by drmx on January 31, 2006 at 05:58 PM
Message	Argon gas is the shielding gas most commonly used w/ welding. How thick is the tubing? If it's relatively thin, there's a good reason for the shielding gas inside. When welding the outside of thinner materials, the heat will rapidly transfer to the inside, and can also cause the metal on the inner surface to start to pool (aka melt). This is bad because oxygen has a chance to get into the liquid metal, hence causing the material to corrode from the inside out. So, if in doubt, hook up a 2nd line from the tank w/ a valve on it so that you flow some of the argon through the tube also.
Follow Ups	any welders on the forum? - suprakillinz(boulder soon) 17:49:36 01/31/06 TOM (n/m) - Spee 17:51:03 01/31/06 actually he was the one who told me to - suprakillinz(boulder soon) 17:54:31 01/31/06 it prevents corrosion on the weld on the inside. - ni[X]it 18:00:37 01/31/06 is that one of the reasons why the greddy manis - suprakillinz(boulder soon) 18:14:04 01/31/06 not sure, i've never seen how it failed. - ni[X]it 18:20:46 01/31/06 email him. - Spee 18:01:01 01/31/06 damn and I was just about to go get a - suprakillinz(boulder soon) 18:11:55 01/31/06 yeah, that'll make a real nce POP. (n/m) - WAGGZ 18:16:19 01/31/06 ever see an oxy acetylene weld pop? - drmx 18:24:41 01/31/06 I had a tip explode on me once. Thank god for - WAGGZ 18:30:52 01/31/06 just like when you use Argon to shield the weld side, - ni[X]it 18:01:35 01/31/06 Thanks nick:) - suprakillinz(boulder soon) 18:13:07 01/31/06 key points; - ni[X]it 18:19:43 01/31/06 good advice (n/m) - drmx 18:22:19 01/31/06 2nd (n/m) - suprakillinz(boulder soon) 18:24:48 01/31/06 Now why do you think there were so many - suprakillinz(boulder soon) 18:24:30 01/31/06 ive never seen the duprees fail.. only read about them. - ni[X]it 18:30:40 01/31/06 So many failures? Where did you get that information from? - Spongerider :) 18:37:23 01/31/06 I know 2 in NJ, another person who had 3 diff sets - suprakillinz(boulder soon) 18:51:05 01/31/06 I can tell you absolute certainty that no one has received - Greg D. (Specialty-Z) 19:07:04 01/31/06 to confirm what you say, both the cases I had seen - suprakillinz(boulder soon) 11:05:11 02/01/06 I highly doubt three sets in a row of Gregs mani's breaking. - Spongerider :) 19:56:57 01/31/06 once again, greg is a great guy, and stands by - suprakillinz(boulder soon) 11:15:21 02/01/06 I'm the old man of the forum, and I have never said - not-hrz 21:54:33 01/31/06 well if you want to get into it fine - suprakillinz(boulder soon) 11:08:50 02/01/06 and what should I apologize for? - suprakillinz(boulder soon) 11:11:19 02/01/06 what "so many" are you talking about? (n/m) - Spee 18:51:54 01/31/06 what type of 'gas' are they 'pouring' into it? - drmx 17:58:39 01/31/06 depends on the penetration of the weld and heat involved. - ni[X]it 18:04:01 01/31/06 could be... - drmx 18:13:52 01/31/06 it all really depends on the materials being welded. - ni[X]it 18:23:13 01/31/06 I've never filled tubes either... - drmx 18:28:09 01/31/06 thats what you call a "proof", screw algebra. :D (n/m) - ni[X]it 18:31:15 01/31/06 Argon gas, and there's a good reason for it. - jkeyser14 18:06:05 01/31/06 Argon/C02 actually...75/25% is what I use - drmx 18:19:57 01/31/06 Why would you choose MIG if you have access to TIG? - Scotts94z32 18:51:58 01/31/06 depends... - drmx 19:01:40 01/31/06 Mixed gas and stainless dont like to play well together - Jared Todd 19:00:53 01/31/06 did not know that, our stainless stations preset gas lines - drmx 19:05:28 01/31/06 I've tacked stainless w/ mixed - Jared Todd 02:35:46 02/01/06 Put in a VG30DETT engine in. Then he'll have a 3000cc - WAGGZ 18:44:13 01/31/06 *turboed* (n/m) - WAGGZ 18:46:07 01/31/06 300+hp in something that weighs 850 give or take - suprakillinz(boulder soon) 18:54:25 01/31/06 300hp?........ - WAGGZ 19:02:58 01/31/06 850 lbs!? Holy crap it must be huge... - drmx 19:04:09 01/31/06 he's adding the weight of the VG engine. (n/m) - WAGGZ 19:16:43 01/31/06 you figure hes about 190 - suprakillinz(boulder soon) 11:18:06 02/01/06 Yes you have to back purge stainless - Jared Todd 18:59:37 01/31/06 what makes welding TI so much harder? - suprakillinz(stuck in NJ) 19:01:53 01/31/06 Titanium reacts with oxygen, nitrogen, other metals - Joe(NoVA) 20:38:57 01/31/06 IT contaminates super easy - Jared Todd 02:33:30 02/01/06 ah, theres the tech description I was looking for, thanks! (n/m) - drmx 19:02:55 01/31/06
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