Welding Galv Advice

  1. Kent

    Kent Member

    Messages:
    10,002
    Location:
    Bowland, Lanacshire,UK
    Well i have welded lots of galv. Its smoky, spitty and sometimes a tad ugly. Go hot and dont go in without a madk and good ventilation
     
  2. grim_d

    grim_d Unlikeable idiot.

    Messages:
    2,665
    Location:
    Scotland - Ayrshire
    @Parm

    I didn't say it wasn't a myth, or that it worked. Like I said, no idea.

    Just saying there is a sound reason for it's origin.

    I can just as easily find websites that say it definitely works...again...not endorsing...https://www.bakersgas.com/weldmyworld/2011/12/03/side-effects-welding-galvanized-steel/

    If you abided by everything the HSE says them nobody would ever get any work done. :laughing:

    I've never had a problem welding galv...but I drink a lot of milk. :whistle:
     
  3. Parm

    Parm Let The Games Commence

    Messages:
    11,600
    Location:
    Towcester

    There is no sound reason for origin of this myth

    Yes I know that site, I'm still on my work computer, some software ive got pointed me straight to that site. Its a blog of unknown origin
     
  4. Munkul Member

    Messages:
    1,961
    Cumbria, UK
    It#s been proven to lower the metal fume levels in the blood stream, there have been several studies. In addition to this, plenty people have proved the real-life improvements with milk in stopping the symptoms of metal fume fever.

    HOWEVER, it's obviously not a magic bullet. It does nothing to stop the particles in your lungs and rest of body, from what I read it sounds like it lowers the blood levels enough to mask the symptoms in a lot of cases. Possibly something to do with stomach linings as well.

    One study I read concluded that there was benefits for the workforce that were nullified because a portion of the workforce were lactose intolerant...!

    But it does nothing to stop the fume in the first place, that's why I'd never recommend it, not when you can get superb extraction systems and PPE these days.
     
    fixerupper and Parm like this.
  5. fixerupper

    fixerupper Member

    Messages:
    1,609
    Location:
    Crete Greece
    When I first worked for GEC in the 70s making steel ducting from 18inch dia up to 72 inch dia ...we often used to modify stuff when it came back from the galvanisers...I used to flame cut an extra hatchway and the welders would add extra fan brackets ,hatch hinges and flanges ....I never ground off any galv before flame cutting ...but I did have a large fan blowing fresh air across my work space 'cos the duct shop was very hot and noisy .I never felt any ill effect from cutting galv, and never heard any of the welders complain about it ...we were a very unionised shop and I always thought we were working in a safe ish environment ....I sometimes think back about those days and wonder how those work companions are health wise ...
     
  6. Parm

    Parm Let The Games Commence

    Messages:
    11,600
    Location:
    Towcester
    Id be interested to see which studies you have been reading
     
    BarrieJ and fixerupper like this.
  7. Munkul Member

    Messages:
    1,961
    Cumbria, UK
    quick abstract from one document

    https://www.ncbi.nlm.nih.gov/pubmed/15474612


    I suppose I'm coming more from a lead burning perspective, we had internal company docs as well that showed the interaction with calcium/lead in the blood as well as increased mucous production. I was taught that zinc, lead and other metal fumes acted pretty similarly.

    I see what you mean though, I can't find any studies showing the science between calcium and zinc, so all I have then is hearsay and experience of people I know :dontknow:
     
    fixerupper and Parm like this.
  8. Nick DV

    Nick DV Member

    Messages:
    307
    Location:
    Southampton
    Damn!! That was going to be my excuse for a constant supply of milk shakes when I was doing the job :doh:
     
    fixerupper likes this.
  9. Parm

    Parm Let The Games Commence

    Messages:
    11,600
    Location:
    Towcester
    Id be very careful with papers and abstracts, there are many many publications claiming all sorts of things. One of the first things that I do when I see anything new is to establish the authority and credibility of that publication and its authors.

    Years ago I was contacted by a famous artist who suspends dead animals in formaldehyde. Some scientists claimed that they had invented a watch type device costing less that $100 that could measure this substance in air. They "took" measurements at the Summer Palace in Bejing and the Tate Modern in London. They claimed the levels were through the roof and every one visiting the art works were going to be affected. A paper was published.

    I spent two months travelling round the world doing some real science with internationally recognised sampling and analytical techniques to verify the claims made. They were found to be rubbish. My evidence was used to make them withdraw their paper and issue a formal apology
     
  10. Parm

    Parm Let The Games Commence

    Messages:
    11,600
    Location:
    Towcester
    Nothing wrong with milkshakes, they are delicious
     
    fixerupper and Nick DV like this.
  11. Nick DV

    Nick DV Member

    Messages:
    307
    Location:
    Southampton
    So true :thumbup: That's it, they'll have to be provided in that case - just to give me a tad of 'protection' :whistle:
     
    fixerupper and Parm like this.
  12. Parm

    Parm Let The Games Commence

    Messages:
    11,600
    Location:
    Towcester
    Followed by ice cream
     
    fixerupper and Nick DV like this.
  13. Nick DV

    Nick DV Member

    Messages:
    307
    Location:
    Southampton
    Abso 'bloody' lutely :laughing::laughing::laughing:
     
    fixerupper and Parm like this.
  14. grim_d

    grim_d Unlikeable idiot.

    Messages:
    2,665
    Location:
    Scotland - Ayrshire
    But bombarding internet discussions with facts ruins all the fun. :(
     
    fixerupper likes this.
  15. Parm

    Parm Let The Games Commence

    Messages:
    11,600
    Location:
    Towcester
    Lol

    Ive heard that putting cold tea (with out milk) relives the symptoms of arc eye ?
     
  16. fixerupper

    fixerupper Member

    Messages:
    1,609
    Location:
    Crete Greece
    Drinking a good strong cup of tea cures everything ..according to my Mum god bless'er
     
    Parm likes this.
  17. grim_d

    grim_d Unlikeable idiot.

    Messages:
    2,665
    Location:
    Scotland - Ayrshire
    @Parm used cold teabags placed over the eyes worked for someone I know. But I think it's just because it's cool and soothing rather than anything else.
     
    Parm and fixerupper like this.
  18. fixerupper

    fixerupper Member

    Messages:
    1,609
    Location:
    Crete Greece
    About the only thing a teabag is good for ...again according to my Mum ...
     
  19. Parm

    Parm Let The Games Commence

    Messages:
    11,600
    Location:
    Towcester
    Yep, bit like an ice pack I suppose. In my yoof ive had arc eye. not fun
     
  20. Munkul Member

    Messages:
    1,961
    Cumbria, UK
    You're absolutely right to be fair, the actual evidence is thin on the ground. However, so is the evidence for "milk does nothing" - most of the articles saying it does nothing, is just an essay stating just that, without any evidence either. At least some of these studies attempt to take blood samples and some actual data.

    I think the few studies out there on the effects of milk on blood lead, as well as the NUMEROUS accounts of people saying milk works for them, suggests there is some truth to it, though. As I said, it masks the symptoms of fume fever nicely, although not doing a lot to prevent the problem.

    case in point - My uncle was not the most careful person, he regularly welded galv sheets etc in his trade as an agricultural engineer, and often he would drink milk beforehand. The odd time he didn't, he got sick.

    He's now dead from brain cancer at the age of 62.

    Make of that what you will.
     
    Parm likes this.
Advertisements