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newbie tig question

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发表于 2021-8-31 23:31:29 | 显示全部楼层 |阅读模式
may be a newb question but here gos im learning to tig weld on my Lincoln precision tig 185 i just dont have time to take a class so videos books and the net are my resorce anyways it seems every time i sharpen my tungsten i then go to strike an arc it seems my arc it seems the arc flares up for a second before it flows to the tip im wondering if there's some sort of contamination from the wheel that could cause other contamination or if maybe my wheel isn't fine enough ive got a dedicated grinder with a medium i think 60 then fine 100 grit and its sharpened lengthwise  any thoughts ???350P 30A spool gun cut master 51  syncro 250 other stuff " take a dog off the street and make him prosper and he will not bite you sad the same cannot be said for man" i didnt use punctuation just to piss you off
Reply:Sounds like either a gas flow problem (make sure your getting flow) or you have it on the wrong polarity (like DC+ instead of DC-)...thats what I would check first, you are using 100% argon right?
Reply:I get the same thing & think it's from the stone wheel, it almost sparkles as it burns off the contamination from the tungsten, then it's fine after that...miller 330a bp TIGmiller dynasty 200DX TIGmillermatic 185 MIGthermal dynamics cutmaster 101 plasma cuttersnap-on YA5550 plasma cutterhypertherm powermax 30 plasma cutterbaileigh CS225 cold sawetc....
Reply:Suggest you follow previous advice about gas flow.  You might try initiating gas flow for a few seconds without establishing the arc to get the gas to the end of the cup.  Also, you might try shortening the taper of the tungsten.  BTW, which tungsten and size are you using?
Reply:What color code of tungsten you using?Size of tungsten and collett?Gas flow rate?Polarity?Material your trying to weld?JasonLincoln Idealarc 250 stick/tigThermal Dynamics Cutmaster 52Miller Bobcat 250Torchmate CNC tableThermal Arc Hefty 2Ironworkers Local 720
Reply:thanks the tung is 3/32 with a pyrex kit everything is set for steel  i have messed around with gas flow some but that brings me to what might be another problem the gauge that came with my machine although its a Harris seems kinda cheap and a lil jumpy in its adjustment im planning on getting a flow meter here soon it sounds close to turbos statement like its stuff from the stone just wonder if its being vaporized or is contaminating the tungsten350P 30A spool gun cut master 51  syncro 250 other stuff " take a dog off the street and make him prosper and he will not bite you sad the same cannot be said for man" i didnt use punctuation just to piss you off
Reply:alumin-oxide wheelsidealarc 250/250 ac-dc tigidealarc 250/250 ac-dc tig #2 used for sticklincoln sp100hh125dual arbor grinder polisher30 yrs of hand tools52 pitch blocks 6p-26prake gauge -pitch gaugeG&D prop repair 918-207-6938Hulbert,okla 74441
Reply:opps sorry the tung is gold but ive had the same thing with red or other colors350P 30A spool gun cut master 51  syncro 250 other stuff " take a dog off the street and make him prosper and he will not bite you sad the same cannot be said for man" i didnt use punctuation just to piss you off
Reply:you could be right on the particulates left from the stone you are using. I haven't really paid much attention to my arcs when I first strike up. Polarity would not cause that to happen. Does your machine have a hot start on it if so what is it set at that could be the issue if so theres nothing to worry aboutBoilermakers local 687looking for a place to put your website try this site out www.buzzhostingservices.comenter this promotional code in and get 50% off for life on our ratescode: Boilermakers
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