Shroud problem

  1. vwhotrod Member

    Messages:
    41
    laois Ireland
    Hi to all,
    My shroud has started to arc if I run it too close to the metal, it doesn't have to make contact to arc. Also when it arcs it seems to put a pull on the machine.I spray murex anti spatter into the shroud and on the tip.Do I need a new shroud? My welder is a new Portamig SWF 350S with a Binzel Arbicor 36 torch.
    I have allready typed this post but I lost it somewhere.
    Thanks for the expert help,
    Martin.
     
  2. Welderpaul

    Welderpaul Moderator Staff Member

    Messages:
    13,215
    Location:
    Yorkshire
    You have got a short somewhere - probably at the back of the shroud. The insulating ring might have fallen off or a lump of spatter stuck inside somewhere.
    Pull the shroud off and replace it - make sure the tip is clean.
     
    metalmelt and mike os like this.
  3. vwhotrod Member

    Messages:
    41
    laois Ireland
    Cheers Paul,
    Sorry I didn't get back to you last night I had to go for a pint.
    So a new shroud will sort the problem.I was wondering would tip dip offer more protection than antispatter and if so which one would you reccomend.
    Thanks again,
    Martin.
     
  4. Welderpaul

    Welderpaul Moderator Staff Member

    Messages:
    13,215
    Location:
    Yorkshire
    I dont really bother with either - i find that tip dip drips from the shroud, no matter how much you shake the excess off - this causes porosity in the first few welds. I tend to just keep changing the shrouds. Cost of replacement shrouds doesnt really matter in the environment i work in, but can be quite costly for diyers. Try Weldequip on the forum, he will be able to supply you with a suitable tip dip, new tips, shrouds etc.
     
    Morrisman likes this.
  5. shenion

    shenion Tool Pack Rat

    Messages:
    7,588
    Location:
    Stone Mountain, GA USA
    I'd first take off the shroud amd clean it and the insulator with awire brush to remove any spatter. It is probably a bit of sptter wedged between the shroud and the diffuser.
     
    metalmelt likes this.
  6. Sparkey

    Sparkey Bouncing along!

    Messages:
    5,156
    Location:
    France
    Yes, i get it sometimes when my torch is getting really used and the swanneck wobbely... make sure the tip is in the center of the shroud too!;)
    sometimes it happens to move to the side and make contact with the shroud...nasty surprise that is!:o
     
  7. Paul.

    Paul. Moderator Staff Member

    Messages:
    6,440
    Location:
    Northampton. UK
    Last edited: Jun 26, 2020
    Morrisman likes this.
  8. Welderpaul

    Welderpaul Moderator Staff Member

    Messages:
    13,215
    Location:
    Yorkshire
    I've got a pair of mig pliers that have pointed serrated ends - just the right size for knocking the snots off the inside.
     
    metalmelt, james marnell and mike os like this.
  9. jugs

    jugs Dont wish to offend & annoy, but...

    Ive got a Shroud problem too:o The wifes sewing one up for me :scared:
     
  10. Sparkey

    Sparkey Bouncing along!

    Messages:
    5,156
    Location:
    France
    :laughing:try the tip dip jugs!:laughing::laughing:
     
  11. jugs

    jugs Dont wish to offend & annoy, but...

    I did thats why shes sewing one up for me :(

    I want my mummy,:hug: but she's tied up at the moment. :laughing:
     
  12. vwhotrod Member

    Messages:
    41
    laois Ireland
    Thank's folks,
    It's hard to beat experience for good advice.I guess I just need to keep the shroud clean or changed to sort my problem.
    Thanks again,:clapping::clapping::hug::hug:
    Martin.
     
  13. rusty69bus

    rusty69bus moving to the goldcoast

    Messages:
    2,708
    Location:
    limbo
    so your jewish then jugs?
     
  14. jugs

    jugs Dont wish to offend & annoy, but...

    Just a cut above you...


    ...... or is that below the belt :whistle:
     
  15. sarahweld

    sarahweld Member

    Messages:
    68
    Location:
    blackpool
    My sealey185 has started doing this ,even with a new shroud have I lost something of the neck where the spring is....... Pishing me right off I can't continue to weld my time machine till its fixed
     
  16. hotponyshoes Member

    Messages:
    2,487
    Location:
    Somerset. Uk
    You can get ceramic shrouds.
    Robotic/automatic welding stations often have them fitted. You don't need a reamer the splatter just wipes off.
    You can also get ceramic spray in an aerosol, that stuff works a treat as well.
     
  17. sarahweld

    sarahweld Member

    Messages:
    68
    Location:
    blackpool

    Mig not tig or can you get ceramic mig shrouds
     
  18. hotponyshoes Member

    Messages:
    2,487
    Location:
    Somerset. Uk
    You can get them for mig (all the tig ones are normally ceramic anyway)

    That's not going to help you though as it sounds like you have a bit missing on your torch :)
     
  19. metalmelt Member

    Messages:
    124
    Location:
    UK
    Just replace the insulator and do it correctly, problem gone.
     
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