7024 Flat. Slag Trouble

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Hi guys, Im on to Flat position today, and with the 7024 my slag is just stuck on there!  Im flailing my hammer like an idiot, so I've walked away and come to the computer.  In horizontal yesterday, it came off like a dream.  Im not sure what Im doing wrong today.  Any hints?  Angle?  Arc length?  Should I change my amps?  Any and all suggestions are appreciated.  Thanks-Jenn
Reply:A little more info would be nice.....what are your settings now, what size 7024....and what size material and what joint ...I know you said flat...is it a butt weld,etc...Mike
Reply:Originally Posted by jplissonHi guys, Im on to Flat position today, and with the 7024 my slag is just stuck on there!  Im flailing my hammer like an idiot, so I've walked away and come to the computer.  In horizontal yesterday, it came off like a dream.  Im not sure what Im doing wrong today.  Any hints?  Angle?  Arc length?  Should I change my amps?  Any and all suggestions are appreciated.  Thanks-Jenn
Reply:Well.  It was 5/32.  I had it at 135amps, It was a flat T-joint.  But after writing I went back, started anew, it came out beautiful!   Just a bad pass I guess?!  Now Im gonna be wrestling with Vertical up.  T-Joints.  First 6010, then 7018.  Both will be 5/32.  I only took one stab at it tonight, and then time was up.  It was a pretty messy scene!  But as with all that came before, I'll get this too!  Ofcourse if you wanna lend some hints, please feel free!-Jenn
Reply:7024 is a drag rod.  A long arc will make the slag hard to come off.  Rest the flux on the plate and let the rod burn.  135 amps is WAY too low for 5/32 rod.    Try 175 and see what happens.  If you can run the 7024 on AC and see what a beautiful bead it makes.DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:difficult slag removal indicates that your off on your parameters. probably a little cold
Reply:Higher voltage will make the slag stick because of undercut.  Hold a closer arc to decrease the voltage.   JohnSMAW,GMAW,FCAW,GTAW,SAW,PAC/PAW/OFCand Shielding Gases.  There all here. :
Reply:difficult slag removal would be indicative of a chemistry issue not a mechanical
Reply:Do you have to use 5/32" in your class?If you have the option to use a smaller diameter electrode than I would recommend you try those first (ie): 1/8" or even 3/32"The smaller the diameter of the electrode equals lower amperages needed and also less weight.  This can make the learning process a little easier and help build more confidence in your skills.Not sure if you have that option or not, but that's what I recommend to my students.Good luck Jenn Talent is a flame. Genius is a fire.- Bern Williams
Reply:Originally Posted by qaqcdifficult slag removal would be indicative of a chemistry issue not a mechanical
Reply:Originally Posted by jplissonWell.  It was 5/32.  I had it at 135amps, It was a flat T-joint.  But after writing I went back, started anew, it came out beautiful!   Just a bad pass I guess?!  Now Im gonna be wrestling with Vertical up.  T-Joints.  First 6010, then 7018.  Both will be 5/32.  I only took one stab at it tonight, and then time was up.  It was a pretty messy scene!  But as with all that came before, I'll get this too!  Ofcourse if you wanna lend some hints, please feel free!-Jenn
Reply:Originally Posted by weldgaultI think you need some more education or experience and don't care which, you are wrong.   John Gault
Reply:7024 is a high deposition rod. NOT intended for vertical ,ever. It's too liquid . It welds great with A C , lousy with D C . I know, i've been there. When welded correctly, the slag almost peels itself off.  7014 CAN be welded vertically. when welding 7024 around a corner (flat position) with D C , you will usually get a hole in the weld ,in that corner , and that hole will be full of slag . I am one of those who like 7024 , when the occasion to use it properly  arises. (with A C , NO arc blow )[SIZE="5"Yardbird"
Reply:A rule of thumb for stick is 1 amp for every .001" of rod.  5/32 = .156" so Start at 156 amps.  I am sure you can run it up to 190 amps.  I have a chart from lincoln.   This does not apply for 6010.From the book,3/16" flat lap or fillet, 5/32 7014 215 amps.  Arc speed of 22 to 27 inches per minute.Last edited by David R; 01-18-2008 at 06:08 AM.Real world weldin.  When I grow up I want to be a tig weldor.
Reply:Originally Posted by qaqcdifficult slag removal would be indicative of a chemistry issue not a mechanical
Reply:Hey gault, qaqc says it all if ya get my drift. David is correct, qaqc is dead wrong. But he is an inspector and we are welders so he gets no slack. In other words if you can't pass a schedule 40 G6 pipe test any day then don't offer advice (I've never had an inspector that could, in fact most couldn't pass a structural test). Properly executed the flux will peel off the weld when using 7024. Insufficient heat or excessive heat will cause difficult flux removal. Excessive heat will also cause splatter when using 7024. It does run best on AC. Excessive heat will also cause splatter and hard flux on 7018. Welderguy is also correct. Start with the small electrodes and work your way up, especially 7018 uphill. You will have a lot fewer headaches and much faster progress. If you are serious about this get a copy of "The Procedure Handbook of Arc Welding" from the Lincoln Foundation and read it, then re-read it and keep it handy for a reference. Qaqc, you do the same and you won't make statements that make you look bad. It will also make you a better inspector, and could save your butt someday.The difference between art and craft is the quality of the workmanship. I am an artist.
Reply:Oh yeah, 7024 is an excellent choice for capping rollouts on high pressure piping. It looks like it was done with a sub arc. I learned it from my dad, but I worked with a fellow that was navy trained and that's the way they were taught as well. I've used the stuff for many years and only recently tried it on ac. I get excellent results with it using dc (I learned to weld using an SA200 so ac wasn't an option. Excessive amperage using dc will cause arc blow with 7024. I usually run it at about 180 amps roughly. The machines I normally use don't read in amps.The difference between art and craft is the quality of the workmanship. I am an artist.