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Pipe, Stainless, more.

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发表于 2021-8-31 23:10:32 | 显示全部楼层 |阅读模式
I have been working as pipe weldor/fitter, more welder than fitter, but I'm learning allot. Mainly stainless, but I get some gas line in here & there. I'm a young guy, trying to work my up through the ranks, and learn as much as possible.
Reply:Some SS Pipe, 2" I drilled with hole saw and hand held drill. Why? Because my boss said to.  Cup walked, no purge, just drainline. Attached Images
Reply:SS manifold, feeding some pumps. Just welded to be watertight, and pretty, boss said so. Attached Images
Reply:Schedule 80 6" coupon test. Just playing at home for practice, because Im not allowed to weld full penetration code style at work. Attached Images
Reply:My newest welder setting on my old one. Had to have an inverter machine after using them work. I chose this one because it was cheap, available, and I had the the cash at the time. My first experience with a Lincoln inverter, which is a better stick welder than the Miller, but the "touch start" is much less refined than Miller's "Lift-Arc."  I am neither  Red or Blue, but find great machines from both companies. Attached Images
Reply:a little header repair Attached Images
Reply:When boilers go wrong. 300 million BTU boiler blowing off some steam. No injuries, not my fault, so I thought it was a pretty fine spectacle. Attached Images
Reply:Having no replies.... I was hoping to get some feed back. I want to get into the UA, and I want to if you all think I have what it takes to get in. What other steps can I take to make myself stand out? Its my only goal. I study my pipe books religiously, and practice several coupons a weekon top of welding 50+ hours a week.  I just want to be the best, work with the best, learn from the best.
Reply:Originally Posted by DavidbrownWhen boilers go wrong. 300 million BTU boiler blowing off some steam. No injuries, not my fault, so I thought it was a pretty fine spectacle.
Reply:Very nice weld man!!From what I see you're good to pass your test.Where are you from??Last edited by altered; 09-13-2012 at 05:53 AM.
Reply:Nice looking work.  I hope your coupon passes the tests.But I am interested in what you said: Originally Posted by Davidbrown...Im not allowed to weld full penetration code style at work.
Reply:Originally Posted by DavidbrownWhen boilers go wrong. 300 million BTU boiler blowing off some steam. No injuries, not my fault, so I thought it was a pretty fine spectacle.
Reply:Lets see the roots
Reply:At work, we do not weld root passes. I am told to make a really good fit, then put a pretty cap style weld over it. Multiple pass welding is strictly prohibited, cup walking is highly fround on as well. Fit, square, level, overall outward apperiance is what is required.As for my roots on my home pratice, Ill post pics soon. I tend to have to too much on top and just above flush on bottom. Im on a project 2,800 miles from home, Ill try to sneak in pics, allthough cameras are forbiden in the plant, but Im sure I can get a few. I have no real certs, other than company issued. I was thinking AWS 2" 6g would be good, but what will get me in the UA? I make 14$ an hour right now, which is unacceptable.
Reply:Boiler heat recovery system, all Stainless you see, I fabricated and installed. Rolled it, welded it, plumbed it with Grundfos pumps and allot pipe. All TIG. Attached Images
Reply:Id like to give more info on the boiler blow, but I cant. We just threw the doors open and shut the the water feed off. Room got real hot real fast. Our dew point monitors read 178 degrees at one point.
Reply:Steam driven propulsion turbines are using 1000psi superheated steam. If a leak develops it does not even become visible until a few feet away from the leak. It is practice to use a broom stick to locate a leak before you walk in front of one because it will cut you in half cleaner than a flo jet. I am a licensed marine engineer and work in the steam turbine business now, there is a lot of power behind high pressure steam.Cain's Mechanical LLC Southwick, MAwww.cainsmechanical.comRig:-2006 Chevy 2500 utility body-Lincoln Ranger 10-Miller Spectrum -Tons of hand and power toolsAWS D1.2 Structural Steel Certification
Reply:current project, quick job. From the floor looking up. Attached ImagesLast edited by Davidbrown; 09-14-2012 at 05:34 PM.
Reply:4 inch joints. I walked it at 85 amps real fast. Attached Images
Reply:Originally Posted by kb1ftx It is practice to use a broom stick to locate a leak before you walk in front of one ....
Reply:Is all this work done with one pass of weld? No root, hot, fill- just a cap?
Reply:all the stainless you see is single pass, just cap. 65 psi is max. Full penetration takes to long for my boss. You just do what your told, you know
Reply:Originally Posted by Davidbrownall the stainless you see is single pass, just cap. 65 psi is max. Full penetration takes to long for my boss. You just do what your told, you know
Reply:Originally Posted by Davidbrownall the stainless you see is single pass, just cap. 65 psi is max. Full penetration takes to long for my boss. You just do what your told, you know
Reply:Some flanges on a steam generator, first pass, using 3/32 wire at 112 amps on a Maxstar 200. Now I weld code! Second pass not available because the boss does not like pics. Attached ImagesConstant Current Weldor.Boom pole construction for small logger friend/neighbor. Seems like once you get quick with TIG, it becomes your go to welder. (I don't own, use, or condone the use of MIG welders). Attached ImagesConstant Current Weldor.
Reply:Originally Posted by DavidbrownBoom pole construction for small logger friend/neighbor. Seems like once you get quick with TIG, it becomes your go to welder. (I don't own, use, or condone the use of MIG welders).
Reply:I have not used a MIG welder in 6 years, all of which I have worked as welder. I was just kidding, but I think that they are over rated & over used. Im not saying every thing should be TIG, we have SMAW as wellIm just saying, you got a little weld to make real quick, most people grab a gun and pull a trigger, but if you become real comfortable with TIG, you tend to go that way (welding a stud on striped bolt/nut, minor exhaust repair, crack in the wheel barrow, ect.)Constant Current Weldor.
Reply:Originally Posted by DavidbrownI have not used a MIG welder in 6 years, all of which I have worked as welder. I was just kidding, but I think that they are over rated & over used. Im not saying every thing should be TIG, we have SMAW as wellIm just saying, you got a little weld to make real quick, most people grab a gun and pull a trigger, but if you become real comfortable with TIG, you tend to go that way (welding a stud on striped bolt/nut, minor exhaust repair, crack in the wheel barrow, ect.)
Reply:Like to see you weld out a dump truck tray using tig or stick
Reply:Originally Posted by Eric COver rated like roots and proper weld procedure?
Reply:i would not worry about smart assed comments when you post a picture of a shouldered-eye bolt used on a lifting device that was made in china. you make single-pass welds on pressure piping and don't expect negative comments for ridiculus procedure like this. no wonder your boss doesn't like pictures! your weld appearance on the cap looks excellent, but it all starts at the root. lets see them. you went overnight from only cap welds to code work. some members on this forum may be skeptical. there is a wealth of knowledge on this forum, readily available if you just accept it. many members here have forgotten more in years of experience than you will ever learn.
Reply:Originally Posted by DavidbrownI'm not sure why you would say something like this, but I suggest you keep your smart a$$ comments to yourself. I always follow procedure, or I would not be allowed to continue work. I have two current x-ray qualified certifications on 2'' & 6'' pipe, respectively.Im sorry I insulted MIG, I realize MIG has its place. It is highly productive, and is just the ticket for the vast majority of fabrication done in this world. It was a joke, not a novel, so don't take it so literally.
Reply:Some root pass from the inside of some 4" just practice coupons. Attached ImagesConstant Current Weldor.
Reply:Originally Posted by dbl612i would not worry about smart assed comments when you post a picture of a shouldered-eye bolt used on a lifting device that was made in china. you make single-pass welds on pressure piping and don't expect negative comments for ridiculus procedure like this. no wonder your boss doesn't like pictures! your weld appearance on the cap looks excellent, but it all starts at the root. lets see them. you went overnight from only cap welds to code work. some members on this forum may be skeptical. there is a wealth of knowledge on this forum, readily available if you just accept it. many members here have forgotten more in years of experience than you will ever learn.
Reply:Originally Posted by Eric CI say this because the work you have posted so far is donkey dick. You put the pics and words on here for the world to see. Your certs dont mean crap if you dont follow the wps you tested to. What procedure are you following by doing cap only? Go post this stuff on the AWS board and see what the nerds over there say. Dont get butt hurt about work you already admitted was half ***. You can tig all the china eyebolts to rusty pipe you want- but when you make statements about the validity of other processes you may get some crap about it.
Reply:I'll be the first to this. Your boss sounds like a prick.Last edited by sqznby; 10-07-2012 at 07:14 PM.
Reply:Originally Posted by DavidbrownYou remind me of a UA welder I met in PA, dude came up and just started trashing me for my welds. Complaining about my lack of full pen welds, backpurge ect, would not even stop to let me agree that it was bull manure welding, but I had no choice. He kept arguing even after I agreed with him that it was not the correct way, hell, he got even madder. I guess you can't reason with an unreasonable person...
Reply:Originally Posted by Pressure_WelderThose "cap only" welds should be cut out and re-done properly. Just remember your the one thats welded the joint, its your *** if it explodes and kills someone. As a "pressure welder" you should know better than to weld a joint like that with just a cap. Thats all i do in our coal fired power plant is deal with superheated steam lines, likely ALOT heavier than you do. Iam currently working on an 4500PSI 8"  superheated steam loop line, with a 2" wall thickness 2 1/4% chromoly, These lines blow, literally anyone in a 300' radius is boiled from the inside out INSTANTLY, the rest of the people in the plant get there ear drums blown out INSTANTLY. Steam is not somthing you toy with my friend.
Reply:wtfomgsteamWelding/Fab Pics: www.UtahWeld.com
Reply:you have alot to learn then if you think 65PSI is harmless.... good luck to you.
Reply:Originally Posted by Pressure_Welderyou have alot to learn then if you think 65PSI is harmless.... good luck to you.
Reply:Leave the UA out of this debacle. Thanks
Reply:Originally Posted by kb1ftxSteam driven propulsion turbines are using 1000psi superheated steam. If a leak develops it does not even become visible until a few feet away from the leak. It is practice to use a broom stick to locate a leak before you walk in front of one because it will cut you in half cleaner than a flo jet. I am a licensed marine engineer and work in the steam turbine business now, there is a lot of power behind high pressure steam.
Reply:I'm pretty sure boiler code calls for a root pass.
Reply:not too long ago the chief engineer of a power station in mass had his license pulled (among other unpleasant things) for delegating his responsibilities to un-licensed personell. that's not the end of the story though. because he failed to follow procedure 2 of his subordinates were killed when a section of boiler blew out. always try to follow procedure because the life you save may (or not) be your own.i.u.o.e. # 15queens, ny and sunny fla
Reply:Originally Posted by ConductorXI worked in an Ammonia plant combining Nitrogen and Hydrogen into high pressure Syn-Gas (5000 psig) which was then converted into Ammonia by a catalyst.  We used, children's brooms to check for leaks.  Hydrogen is completely invisible when it burns.  If the straws caught fire we had a hydrogen leak, if the straws starting popping off we had a high pressure leak.  If Ammonia was leaking you could smell it, no worries there. "G"
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