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Modern Marvels "metals"

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  • Rick Rowlands
    A Modern Marvels program about metal just showed a couple of men at a university. They broke up some iron ore and limestone, placed the bits in a crucible and
    Message 1 of 5 , Jan 11, 2006
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      A Modern Marvels program about metal just showed a couple of men at a
      university. They broke up some iron ore and limestone, placed the bits in a
      crucible and heated them for 2 hours to about 2800 degrees. They then
      emptied the crucible and out comes this semi solid mass of metal.

      What did they just make? Wrought iron?

      Rick

      ----- Original Message -----
      From: <rchilso@...>
      To: <hobbicast@yahoogroups.com>
      Sent: Thursday, January 12, 2006 12:05 AM
      Subject: RE: [hobbicast] Re: need help. i have gas pockets in brass gastings


      > high strength non leaded yellow brass. in 1/2" rods 10" long which were
      > left over from a stair way job my nextdoor neibor did. and i tried gating
      > from the top ,and middle as well as a pop gate. one thing that did get my
      > attention after i thought about it was i couldnt keep the sprue choked
      > with molten metal which could have stired in air as i poured.
      >
      >
      >
      >
      > "Lyle" <creepinogie@...> wrote:
      >
      >>Are they gas pockets or shrinkage tears which can look the same. What
      >>kind of "brass" are you pouring.
      >>Lyle
      >>
      >>--- In hobbicast@yahoogroups.com, rchilso@n... wrote:
      >>>
      >>> i have gas pockets in my brass castings for no apperent reason. i
      >>have sufficent temp at pour, i vent the mold well, i bake any cores
      >>to remove moisture, and the green sand is not too wet or rammed to
      >>tight.( i've tried all that) a friend suggested "facing???" any help
      >>is welcome.
      >>> Thanks
      >>> Robert
      >>>
      >>> __________________________________________________________________
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      >>
      >>
      >>
      >>
      >>
      >>
      >>For discussion of Metal Casting and related issues
      >>this list does not accept attachments.
      >>
      >>Files area and list services are at:
      >> http://groups.yahoo.com/group/hobbicast
      >>
      >>For additional files and photos and off topic discussions
      >>check out these two affiliated sites:
      >> http://groups.yahoo.com/group/sandcrabs
      >> http://groups.yahoo.com/group/Hobbicast1
      >>
      >>Please visit our sponsor: Budget Casting Supply
      >>http://budgetcastingsupply.com/
      >>
      >>List Owner:
      >>owly@...
      >>
      >>
      >>Yahoo! Groups Links
      >>
      >>
      >>
      >>
      >>
      >>
      >>
      >>
      >
      > __________________________________________________________________
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      > For discussion of Metal Casting and related issues
      > this list does not accept attachments.
      >
      > Files area and list services are at:
      > http://groups.yahoo.com/group/hobbicast
      >
      > For additional files and photos and off topic discussions
      > check out these two affiliated sites:
      > http://groups.yahoo.com/group/sandcrabs
      > http://groups.yahoo.com/group/Hobbicast1
      >
      > Please visit our sponsor: Budget Casting Supply
      > http://budgetcastingsupply.com/
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      >
      > Yahoo! Groups Links
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    • Dick Morris
      Yes. I watched that section again after reading your note. ... Dick Morris Anchorage, Alaska
      Message 2 of 5 , Jan 12, 2006
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        Yes. I watched that section again after reading your note.

        At 09:24 PM 1/11/2006, you wrote:
        >They broke up some iron ore and limestone, placed the bits in a
        >crucible and heated them for 2 hours to about 2800 degrees. They then
        >emptied the crucible and out comes this semi solid mass of metal.
        >
        >What did they just make? Wrought iron?

        Dick Morris
        Anchorage, Alaska
      • Daniel C Postellon
        There had to be some carbon in there, somewhere. Maybe in the fuel to heat the crucible. If you didn t get it too hot, and ended up with a spongy mass of
        Message 3 of 5 , Jan 12, 2006
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          There had to be some carbon in there, somewhere. Maybe in the fuel to heat
          the crucible. If you didn't get it too hot, and ended up with a spongy mass
          of metal and slag, you have a "bloom". This is a mixture of slag,iron, a
          little bit of steel, and possibly some cast iron, if you got it hot enough.
          Re-heat it red hot, beat the slag out with a hammer, and you have the type
          of iron the Vikings would have used.

          > A Modern Marvels program about metal just showed a couple of men at a
          > university. They broke up some iron ore and limestone, placed the bits in a
          > crucible and heated them for 2 hours to about 2800 degrees. They then
          > emptied the crucible and out comes this semi solid mass of metal.
          >
          > What did they just make? Wrought iron?
          >
          > Rick
          >
          > ----- Original Message -----
          > From: <rchilso@...>
          > To: <hobbicast@yahoogroups.com>
          > Sent: Thursday, January 12, 2006 12:05 AM
          > Subject: RE: [hobbicast] Re: need help. i have gas pockets in brass gastings
          >
          >
          >> high strength non leaded yellow brass. in 1/2" rods 10" long which were
          >> left over from a stair way job my nextdoor neibor did. and i tried gating
          >> from the top ,and middle as well as a pop gate. one thing that did get my
          >> attention after i thought about it was i couldnt keep the sprue choked
          >> with molten metal which could have stired in air as i poured.
          >>
          >>
          >>
          >>
          >> "Lyle" <creepinogie@...> wrote:
          >>
          >>>Are they gas pockets or shrinkage tears which can look the same. What
          >>>kind of "brass" are you pouring.
          >>>Lyle
          >>>
          >>>--- In hobbicast@yahoogroups.com, rchilso@n... wrote:
          >>>>
          >>>> i have gas pockets in my brass castings for no apperent reason. i
          >>>have sufficent temp at pour, i vent the mold well, i bake any cores
          >>>to remove moisture, and the green sand is not too wet or rammed to
          >>>tight.( i've tried all that) a friend suggested "facing???" any help
          >>>is welcome.
          >>>> Thanks
          >>>> Robert
          >>>>
          >>>> __________________________________________________________________
          >>>> Switch to Netscape Internet Service.
          >>>> As low as $9.95 a month -- Sign up today at
          >>>http://isp.netscape.com/register
          >>>>
          >>>> Netscape. Just the Net You Need.
          >>>>
          >>>> New! Netscape Toolbar for Internet Explorer
          >>>> Search from anywhere on the Web and block those annoying pop-ups.
          >>>> Download now at http://channels.netscape.com/ns/search/install.jsp
          >>>>
          >>>
          >>>
          >>>
          >>>
          >>>
          >>>
          >>>For discussion of Metal Casting and related issues
          >>>this list does not accept attachments.
          >>>
          >>>Files area and list services are at:
          >>> http://groups.yahoo.com/group/hobbicast
          >>>
          >>>For additional files and photos and off topic discussions
          >>>check out these two affiliated sites:
          >>> http://groups.yahoo.com/group/sandcrabs
          >>> http://groups.yahoo.com/group/Hobbicast1
          >>>
          >>>Please visit our sponsor: Budget Casting Supply
          >>>http://budgetcastingsupply.com/
          >>>
          >>>List Owner:
          >>>owly@...
          >>>
          >>>
          >>>Yahoo! Groups Links
          >>>
          >>>
          >>>
          >>>
          >>>
          >>>
          >>>
          >>>
          >>
          >> __________________________________________________________________
          >> Switch to Netscape Internet Service.
          >> As low as $9.95 a month -- Sign up today at
          >> http://isp.netscape.com/register
          >>
          >> Netscape. Just the Net You Need.
          >>
          >> New! Netscape Toolbar for Internet Explorer
          >> Search from anywhere on the Web and block those annoying pop-ups.
          >> Download now at http://channels.netscape.com/ns/search/install.jsp
          >>
          >>
          >>
          >>
          >> For discussion of Metal Casting and related issues
          >> this list does not accept attachments.
          >>
          >> Files area and list services are at:
          >> http://groups.yahoo.com/group/hobbicast
          >>
          >> For additional files and photos and off topic discussions
          >> check out these two affiliated sites:
          >> http://groups.yahoo.com/group/sandcrabs
          >> http://groups.yahoo.com/group/Hobbicast1
          >>
          >> Please visit our sponsor: Budget Casting Supply
          >> http://budgetcastingsupply.com/
          >>
          >> List Owner:
          >> owly@...
          >>
          >>
          >> Yahoo! Groups Links
          >>
          >>
          >>
          >>
          >>
          >>
          >
          >
          >
          > For discussion of Metal Casting and related issues
          > this list does not accept attachments.
          >
          > Files area and list services are at:
          > http://groups.yahoo.com/group/hobbicast
          >
          > For additional files and photos and off topic discussions
          > check out these two affiliated sites:
          > http://groups.yahoo.com/group/sandcrabs
          > http://groups.yahoo.com/group/Hobbicast1
          >
          > Please visit our sponsor: Budget Casting Supply
          > http://budgetcastingsupply.com/
          >
          > List Owner:
          > owly@...
          >
          >
          > Yahoo! Groups Links
          >
          >
          >
          >
          >
          >
          >
        • William Abernathy
          ... Probably pig iron. Won t be wrought iron until they beat it, fold it, beat it, fold it about a zillion times. --W
          Message 4 of 5 , Jan 12, 2006
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            Rick Rowlands wrote:
            > A Modern Marvels program about metal just showed a couple of men at a
            > university. They broke up some iron ore and limestone, placed the bits in a
            > crucible and heated them for 2 hours to about 2800 degrees. They then
            > emptied the crucible and out comes this semi solid mass of metal.
            >
            > What did they just make? Wrought iron?

            Probably pig iron. Won't be wrought iron until they beat it, fold it, beat it,
            fold it about a zillion times.

            --W
          • Dick Morris
            The folding and beating was the next step demonstrated. ... Dick Morris Anchorage, Alaska
            Message 5 of 5 , Jan 12, 2006
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              The folding and beating was the next step demonstrated.

              At 01:08 PM 1/12/2006, you wrote:
              > > What did they just make? Wrought iron?
              >
              >Probably pig iron. Won't be wrought iron until they beat it, fold it, beat
              >it,
              >fold it about a zillion times.

              Dick Morris
              Anchorage, Alaska
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