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i was wondering about Argon bottles sitting on the ground , especially if ther low...mines up a few inches off the ground on the cart of my squareWave. But is the rumor the same as keeping Car Batteries and Gas Cans off the concrete because they collect condensation ? I wonder about even just rapid change in climate...this video jody made yesterday made me think about it again thermal arc 252i - millermatic 350P - miller XMT, cp300ts, 30a 22a feeders, buttload of other millers, handfull of lincolns, couple of esabs - Hypertherm 1250 G3
Reply:The bottles are dehydrated before filling. There should be no moisture inside to condense. The whole design behind his air dryer is flawed as well.
Reply:the key word you said ther is 'should' .....i know for a fact that ive had gas that was compromised thermal arc 252i - millermatic 350P - miller XMT, cp300ts, 30a 22a feeders, buttload of other millers, handfull of lincolns, couple of esabs - Hypertherm 1250 G3
Reply:Originally Posted by woi2ldthe key word you said ther is 'should' .....i know for a fact that ive had gas that was compromised
Reply:You need oxygen for condensation. A good bottle of gas won't have any oxygen in it. So no condensation.My name's not Jim....
Reply:BS post from start to finish.One is much more likely to experience condensation in the "unpressurized" gas line (after the gas solonoid) than he is to have moisture in the bottle.This half azzed dryer does nothing to solve the real issue.PS. Next week Jody will be selling "gas dryers" to those who can't build their own.Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.
Reply:That was funny! Purposely putting foreign matter into your gas line, then going onto a part with that stuff! I'd like to see the shop, job, laboratory that allowed that much less endorsed it. Maybe I've been out of the regular world too long and just never heard of this before.Two turn tables and a microphone.
Reply:Well I want my gas demoisturizer to take out the moisture AND double as an oiler so my torch will be self lubricated. I really like the smell of Marvel Mystery Oil.I hope it won't be to ugly, but if so I can get some of those flower stickers.Did Jody say that you have to bake the dessicant? I want mine to be self drying as well. Perhaps a heating element and a timed purge valve will work.Eventually it may look like this.Weld like a "WELDOR", not a wel-"DERR" MillerDynasty700DX,Dynasty350DX4ea,Dynasty200DX,Li ncolnSW200-2ea.,MillerMatic350P,MillerMatic200w/spoolgun,MKCobraMig260,Lincoln SP-170T,PlasmaCam/Hypertherm1250,HFProTig2ea,MigMax1ea.
Reply:What was it that Chicken Little said? Oh yeah, the sky is falling, the sky is falling! Dont pay any attention to meIm just a hobbyist!CarlDynasty 300V350-Pro w/pulseSG Spool gun1937 IdealArc-300PowerArc 200ST3 SA-200sVantage 400
Reply:you mean its dumb kind of like inline particulate filters in shops spraying high dollar vehicles.which one is it 'BS' or 'much more likely' ? your so condascending with your words , remind me of yorkiepap. by the way , where is he, is he ok thermal arc 252i - millermatic 350P - miller XMT, cp300ts, 30a 22a feeders, buttload of other millers, handfull of lincolns, couple of esabs - Hypertherm 1250 G3
Reply:It's really sad that some of our posters fall for this crap.woi2ld,First off, we're talking about two ENTIRELY different things. The air you're using for spray painting is nothing like the gas in a pressurized cylinder. The air you're using there comes from the atmosphere which, depending on humidity, contains moisture. As it cools down, the moisture is released. Not the case at all with welding gasses.If this really was an issue, don't you think that one of the thousands of "air dryer/filter" manufacturers would have jumped all over it.I say again. BS solution to a non problem.Syncro 250 DX Dynasty 200 DXMM 251 w/30A SG XMT 304 w/714 Feeder & Optima PulserHH187Dialarc 250 AC/DCHypertherm PM 1250Smith, Harris, Victor O/ASmith and Thermco Gas MixersAccess to a full fab shop with CNC Plasma, Water Jet, etc.
Reply:Originally Posted by SundownIIIIt's really sad that some of our posters fall for this crap.woi2ld,First off, we're talking about two ENTIRELY different things. The air you're using for spray painting is nothing like the gas in a pressurized cylinder. The air you're using there comes from the atmosphere which, depending on humidity, contains moisture. As it cools down, the moisture is released. Not the case at all with welding gasses.If this really was an issue, don't you think that one of the thousands of "air dryer/filter" manufacturers would have jumped all over it.I say again. BS solution to a non problem.
Reply:Originally Posted by Oldiron2I agree. If your gas does have moisture, the tanks need to be taken back to the supplier and both the tanks and your time paid for because it's a major error on the part of the filling agent. If you just deal with a LWS, they need to take care of your problem and then go after the supplier of the bad bottles for reimbursement. If I knew I had a problem with moisture, I might run some gas through an indicating drier just as an experiment, but I surely wouldn't complicate life and possibly cause other problems by having drying equipment in my system all the time. How often have any of you actually had a problem with moisture in your gas?
Reply:Gas cans are usually vented,as they heat and cool they can accumulate moisture.As long as a pressurized tank has pressure,no moisture can migrate into it.The bottle has whatever the supplier put into it,if it has moisture,he put it there.I would be more worried about the home made dryer putting silicon dust onto my work.
Reply:some people are totally oblivious when it comes to proper care of pressure vessels and will leave the valve open on an empty tank.this happens on propane tanks often so i'm sure it also happens on argon tanks ank can result in moisture in the tank.miller thunderbolt 250vlincoln square wave tig 175 prolincoln idealarc mig sp250everlast tig 210EXTeverlast power plasma 50chicago electric (hf) 130 tig/90 arcchicago electric 90 amp flux wire3 sets oxy/acet
Reply:Originally Posted by boatbuoysome people are totally oblivious when it comes to proper care of pressure vessels and will leave the valve open on an empty tank.this happens on propane tanks often so i'm sure it also happens on argon tanks ank can result in moisture in the tank.
Reply:Originally Posted by DSWMany gas suppliers draw a vacuum on the cylinders prior to filling as a standard practice.
Reply:This is much like to folks that tell me to pre-heat my metal so I can drive the moisture out of it before I weld it. I try to explain that the steel crystal matrix has no room for molecules of water to get into the steel. That the moisture they see when applying heat is condensation and nothing more. I call BS on this OP.
Reply:the first thing i said on the OP was " i was just wondering " . Ok , let me ask this. Has anyone ever seen the LWS refill the bottle? Did they draw a vacuum first?................the way i remember it , it looked like it was being filled off a series of other bottles. I dont remember seeing the vacuum process , or him asking "sir , did u leave the valve open on this bottle compromiseing it ? " . Since ive moved , this LWS swaps bottles so idk either , but theyve been fine thermal arc 252i - millermatic 350P - miller XMT, cp300ts, 30a 22a feeders, buttload of other millers, handfull of lincolns, couple of esabs - Hypertherm 1250 G3
Reply:Yes I have and yes they did. They system has a manifold (sp) that was hooked to a chamber that had been evacuated all the cylinders were attached all the cylinders were opened and then the valve to the chamber was opened. Once the gauge was normalized (quit moving) the main valve closed and the refilling process began. Took all of 2 minutes for the evacuation of 10-20 cylinders. That was 35 years ago.
Reply:There are a multitude of ways to fill a bottle. They range all the way from grabbing whatever has the correct CGA connection and filling right over the top of whatever residual crap is in there to a double vac and argon purge in between the vacs into a cylinder that has only been in argon service.You get what you pay for, as alwaysExperience is something you get right after you need it
Reply:Originally Posted by Fred sThere are a multitude of ways to fill a bottle. They range all the way from grabbing whatever has the correct CGA connection and filling right over the top of whatever residual crap is in there to a double vac and argon purge in between the vacs into a cylinder that has only been in argon service.You get what you pay for, as always
Reply:Not suprisingly, there are things you can do to specify how good your gas is. The AWS has a gas specificaition just like for wires. The most current document is AWS A 5.32 :2011 edition. If you ask for gas to this standard, you are supposed to get documented compliance with the rules in the document. The global purity is a minimum of 99.99% and the max moisture is 40PPM. If you want to revert to the old 1997(R2007) document, the purity is 99.997%, max moisture is 10.5PPM.If you really need wonderful argon, you can specify all sorts of specific impurity tolerance. Expect to pay for all of these tests, but you can get riduculously good argon if you do a good job specifying it.Experience is something you get right after you need it
Reply:The use of that "Green" hose contributes greatly to moisture and oxygen since it permeates H2o & O2. Get rid of that "Green" hose and go with Teflon.To get the best Argon one must be specific. For instance Argon Cylinders Marked Grade 5.0 means a purity spec of 99.999998 or 5 nines after the decimal point.This Argon should be in the less than 3 PPM range. However your gonna pay $$ as the purity goes up due to extra filtration and tighter filling requirements.Neat little H2o contraption lol. Add some molecular sieve and get rid of the O2. Dump the pellets into a 2" dia stainless tube weld end caps on and 3/8" compression fittings for your TEFLON purge/torch gas and you have a $400 O2 / H2O trap. lol
Reply:How the hell is moisture going to go from a place that's 14 psi (in your shop) to a place that's 2500 psi (inside the argon bottle)?That'd be a pretty good trick!(Oh, and it's been fine to store batteries on concrete since about 1960.)5.0 argon is 5 "nines" all together or 99.999%. This only leaves 10PPM of anything but argon. Here is a list of maximum allowed impurities for one of my company's better grades of argon. This would be considered a 5.5 argon. Alphagaz 2 Moisture------------------ 99.9995%Last edited by Fred s; 03-22-2012 at 08:33 AM.Experience is something you get right after you need it
Reply:Originally Posted by Fred s5.0 argon is 5 "nines" all together or 99.999%. This only leaves 10PPM of anything but argon. Here is a list of maximum allowed impurities for one of my company's better grades of argon. This would be considered a 5.5 argon. Alphagaz 2 Moisture------------------ 99.9995%
Reply:We have a special fill palt for electronic specialty gases in Morrisville, NJ, not too sure about anything in PA except for our plant in Plumsteadville. 6.0 Ar would be 1PPM of anything but argonExperience is something you get right after you need it
Reply:At what level will a welder notice the issue described by the OP? 100ppm? 1000ppm? The whiskers described by the OP I can not attribute to gas contamination. I have welded in a Vacuum chamber and had the same issues. Welding where a vacuum is pulled then filtered gas in injected then welding begins. Given the lengths that the contractor went for all things I don't think they would have skimped on the gas. One weld 2" long might take 2 hours to setup. |
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发表于 2021-8-31 23:15:48