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Thread: interesting photo from the battleship u.s.s. arkansas

  1. #1
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    Default interesting photo from the battleship u.s.s. arkansas

    showing its on board foundry

    72FF1840-D86E-4187-9B77-F5500C4D70AE.jpeg
    Simpler is better, except when complicated looks really cool.

  2. #2
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Pouring shot for the cannons

  3. #3
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    eye protection would be good.
    IMAGINES VEL NON FUERINT

  4. #4
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    It’s good to have a foundry on board.

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    Default Re: interesting photo from the battleship u.s.s. arkansas

    According to Wiki, she had coal fired steam turbines originally, and between the WWs she was converted to oil fired. Would the foundry have been fired from the main power?


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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Quote Originally Posted by Andrew Craig-Bennett View Post
    eye protection would be good.

    Our 'OSHA' was not even a glimmer in someone's mind at that point , I'm sure
    Charter Member - - Professional Procrastinators Association of America - - putting things off since 1965 " I'll get around to it tomorrow, .... maybe "

  7. #7
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    I am guessing it is metal for a machinery part. Sleeve bearings? Lead?

  8. #8
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Babbitt metal perhaps
    Routine to cast in situ

  9. #9
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    What I was thinking, too. I believe the metal was heated in the pot they're pouring from.

    Quote Originally Posted by Canoeyawl View Post
    Babbitt metal perhaps
    Routine to cast in situ

  10. #10
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Having just taken a class in smithing, I am amazed at the amount of heat that must have produced. When you consider one mote of dust from that thing getting in your eye? Geez.

    Mickey Lake
    'A disciple of the Norse god of aesthetically pleasing boats, Johan Anker'

  11. #11
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Quote Originally Posted by Canoeyawl View Post
    Babbitt metal perhaps
    Routine to cast in situ
    I think you are right.

    No very high temperatures needed. Most Babbitt metals melt around 460F.
    IMAGINES VEL NON FUERINT

  12. #12
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Casting lead sinkers for some heavy duty fishing tackle.
    basil

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    Default Re: interesting photo from the battleship u.s.s. arkansas

    If that photo was in color, the crucible would be glowing a bright orange. The second guy holding the long handle to steady the crucible is as far away and behind the first guy as he can get, probably because of the heat and for the possibility of being tagged if something spills or splashes. And that crucible and the big pot are both obviously heavily built and the molten metal is also heavy. Judging from the pour going into the small pot, that's going to be something like a half gallon of molten metal. It would be ineresting to know just what they're casting. There would've been babbit bearings for a lot of different things on board a ship that size, I'm guessing. And that stuff is a lot hotter than four hundred sixty degrees. I'm guessing.

    My one experience with observing a foundry in action was when I had my two little sculptures cast in bronze at a place here in Sacramento. They do a lot of art business and they had an open house on the day they did my stuff. There was a small crowd of gallery goers along as it was on the monthly art walk night. The setup, and the size of the containers looks very similar to the bronze casting I watched.

    Oooh. That jogs my memory. When I get done with the damn paver project, I get to do my projects, and among other things, I've been waiting for the cooler and wetter weather to fire up the little assay kiln I use for forging. I've got a piece of an old mattock that I've cut down and intend to turn into a carving adze. The kiln runs on propane from a barbecue tank and air from my compressor. I've been wanting to do this forging for a decade, and it's one thing I've been wanting to make progress on my Big Chunk project.

    I wouldn't have even considered doing such things if I hadn't been lurking upstairs, reading about boat builders casting bronze, back when I first found the Woodenboat forum.


  14. #14
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Could have been a crucible induction furnace. I worked at Signicast in Hartford WI, all their furnaces were induction. Me and my Pacemaker stayed well away.

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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Can you explain induction furnace?


  16. #16
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    Default Re: interesting photo from the battleship u.s.s. arkansas

    Babbitt metal would not make the crucible red hot, in fact if your wife is not home you can melt Babbitt metal on the kitchen stove.

    I have cast a bit of bronze and the picture is a bit odd, Typically the crucible in the foreground is in the furnace. I would hesitate before pouring molten metal into a graphite crucible, maybe not Babbitt but Bronze, I just wouldn't do it.
    Which, that looks like a 90 lb crucible, which is what we poured "in the back yard"
    Casting Babbitt bearings in situ is interesting, I used to well "blacken" the shaft with an acetylene torch (no oxygen), close the shells, add shims and plug the ends with machined plugs, "Moist-Bestos" or both and pour right through the oil hole. A perfect fit every time... I have redone a drill press, spindle shaper, planer, jointer heads and engines that were Babbitt equipped. The brass shims .001" could be later removed one at a time to take up for wear. An interesting phenomenon is that wear would typically be in the shaft and not so much in the soft Babbitt.
    (The local boat yard used to call me to come and repour older boats that were built before Cutless bearings. I could do that as a "mobile" service and still have about 30 pounds of Babbitt. If anyone is contemplating this, ping me!)

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