Announcement

Collapse
No announcement yet.

flux coverage

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • flux coverage

    I am new to the form and I need some help. I have a Millermatic 211. I am using flux core wire and the flux coverage is very spotty and the weld does not look good. I start with the settings on the panel and have adjusted the wire speed and voltage to no avail. What is interesting is the first weld after a cold start with the welder has pretty good coverage. After that, not so good.

  • #2
    Originally posted by lonestar1 View Post
    I am new to the form and I need some help. I have a Millermatic 211. I am using flux core wire and the flux coverage is very spotty and the weld does not look good. I start with the settings on the panel and have adjusted the wire speed and voltage to no avail. What is interesting is the first weld after a cold start with the welder has pretty good coverage. After that, not so good.
    Make sure your polarity is correct.
    sigpic

    Dynasty 200 DX
    Millermatic 350P
    30A Spoolgun
    Lincoln Pro Mig 140
    Hypertherm Powermax 30
    14" Rage Evolution dry saw
    40 ton press brake
    Evenheat Heat treat oven

    1x42 / 4x48 belt grinder

    Comment


    • #3
      Originally posted by lonestar1 View Post
      I am new to the form and I need some help. I have a Millermatic 211. I am using flux core wire and the flux coverage is very spotty and the weld does not look good. I start with the settings on the panel and have adjusted the wire speed and voltage to no avail. What is interesting is the first weld after a cold start with the welder has pretty good coverage. After that, not so good.
      POLARITY Change for Gasless Fluxcore...

      Hope you have changed it..?? from DCEP for gas shielded to DCEN for gasless fluxcore

      Wrong polarity will give poor weld bead characteristics

      (Jerry... you beat me to it......)
      Last edited by H80N; 01-18-2016, 03:37 PM.
      .

      *******************************************
      The more you know, The better you know, How little you know

      “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

      Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

      My Blue Stuff:
      Dynasty 350DX Tigrunner
      Dynasty 200DX
      Millermatic 350P w/25ft Alumapro & 30A
      Millermatic 200

      TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

      Comment


      • #4
        Polarity as said above. You did not say what you are welding? Mild steel I assume? How thick? Is metal prepped & clean? If sheet metal then you may be kind of burning through & sucking contaminants in from the back side. Are you trying to fill a large gap? Same issue. Are you pulsing the trigger (on & off)? This will leave you without enough flux coverage. Wire stick out should be more than welding with gas.
        MM250
        Trailblazer 250g
        22a feeder
        Lincoln ac/dc 225
        Victor O/A
        MM200 black face
        Whitney 30 ton hydraulic punch
        Lown 1/8x 36" power roller
        Arco roto-phase model M
        Vectrax 7x12 band saw
        Miller spectrum 875
        30a spoolgun w/wc-24
        Syncrowave 250
        RCCS-14

        Comment


        • #5
          Lonestar

          any luck in sorting that out..??
          .

          *******************************************
          The more you know, The better you know, How little you know

          “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

          Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

          My Blue Stuff:
          Dynasty 350DX Tigrunner
          Dynasty 200DX
          Millermatic 350P w/25ft Alumapro & 30A
          Millermatic 200

          TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

          Comment


          • #6
            Thanks for the suggestions and I checked them all. No luck in solving the problem. I am convinced it is a wire feed problem, but the Miller repair said no. I sold the welder and am going another route.
            Lonestar1

            Comment


            • #7
              Could very well be a feed problem. I just found an issue with my Millermatic 211 where the wire does not line up with the grooves in the drive roller. Miller is convinced the motor/shaft is the issue, but I am hoping it is just a mis-machined drive roller. All grooves are off-set about 0.010-0.012", enough that when I swing down the roller arm and slip the tensioner up, the wire ends up still sitting on the flat portion of the roller, and doesn't scoot into the grooves. we'll see.
              HTP Invertig221 D.V. Water-cooled
              HTP Pro Pulse 300 MIG
              HTP Pro Pulse 200 MIG x2
              HTP Pro Pulse 220 MTS
              HTP Inverarc 200 TLP water cooled
              HTP Microcut 875SC

              Comment


              • #8
                I have noticed from web videos that some machine drive wheels have a serrated pattern for flux wire, also the tension it typically less for flux wire. How is your liner condition? Just some thoughts.

                Comment


                • #9
                  Originally posted by lonestar1 View Post
                  Thanks for the suggestions and I checked them all. No luck in solving the problem. I am convinced it is a wire feed problem, but the Miller repair said no. I sold the welder and am going another route.
                  Lonestar1
                  even though the OP no longer has this welder...

                  Here are some Fluxcore How-To videos that will answer many questions... for others in the same situation

                  https://www.youtube.com/watch?v=kI7GOVrB33c

                  https://www.youtube.com/watch?v=iD7Y57gK3yU

                  https://www.youtube.com/watch?v=WUYQ87_o_6g

                  Last edited by H80N; 01-29-2016, 03:20 PM.
                  .

                  *******************************************
                  The more you know, The better you know, How little you know

                  “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                  Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                  My Blue Stuff:
                  Dynasty 350DX Tigrunner
                  Dynasty 200DX
                  Millermatic 350P w/25ft Alumapro & 30A
                  Millermatic 200

                  TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

                  Comment


                  • #10
                    This 1hour Fluxcore Video goes into a bit more depth....

                    https://www.youtube.com/watch?v=EZDUxZD7GwE

                    worth the time spent if you are just getting started...
                    .

                    *******************************************
                    The more you know, The better you know, How little you know

                    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

                    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

                    My Blue Stuff:
                    Dynasty 350DX Tigrunner
                    Dynasty 200DX
                    Millermatic 350P w/25ft Alumapro & 30A
                    Millermatic 200

                    TONS of Non-Blue Equip, plus CNC Mill, Lathes & a Plasmacam w/ PowerMax-1000

                    Comment


                    • #11
                      not the first time that i had heard that the 211 has feed issues, causing lousy beads, just repeating what i have heard

                      Comment

                      Working...
                      X