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What to use for large amts of alloy?
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I am am having difficulty with my ingot casting opperation the cast iron frying pans I have used for melting & alloying larger quantities of alloy are cracking and spliting should I keep buying new one's till I find one that doesnt? what do you guys use?


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Posts: 206 | Location: Alberta ,Can | Registered: 29 October 2004Reply With Quote
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Cracking and splitting? Cast Iron?
Sounds an awful lot like aluminium.
I've used the same cast iron dutch oven for 20 years. Now days I use a section of 15 inch pipe with a plate welded on the bottom, because I can melt large quanities of alloy.
Jim


"Whensoever the General Government assumes undelegated powers, its acts are unauthoritative, void, and of no force." --Thomas Jefferson

 
Posts: 6173 | Location: Richmond, Virginia | Registered: 17 September 2000Reply With Quote
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Yes cast iron lodge is the brand name bought at canadian tire. Your response hase me thinking this is unusual. Your 15" pipe I am assuming that is wide that is a little bigger than I had envisioned but I like the idea. Thanks for the tips.


HAVE FAITH IN GOD.
 
Posts: 206 | Location: Alberta ,Can | Registered: 29 October 2004Reply With Quote
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I have an old piece of steel pipe (about 8"x10" tall) to which I welded a bottom plate and added a 3/4 dia. piece of bar for a handle that I have used for years; heat it on my Coleman stove in the yard when melting up a batch of wheel weights. If it gets too big it can get pretty heavy. An old plumber's cast iron lead pot would work if you could find one. I use old steel muffin tins for molds. These ingots just fit my 20# electric pot.
C.G.B.
 
Posts: 1105 | Registered: 25 January 2005Reply With Quote
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Harbor Freight sells two sizes of cast iron dutch ovens very reasonably. Mine is secondhand but visually identical to the Harbor Freight item.

I have tried a cutoff gas bottle, but will have to find a better way to support it before I use it again. The base ring on mine is too small in diameter and heats to glowing with my heat source.


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Posts: 1570 | Location: Base of the Blue Ridge | Registered: 04 November 2002Reply With Quote
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Hey Fellas
Will the gas burner from a natural gas/propane camp stove heat up a 15 inch by 12 inch deep pot of wheel weights?
In the past I've used a small furnace fired by coal with a blower to heat up this pot with good results.
I've cajoled my son-in-law into building a angle iron stand for the pot and an adjustable platform for the burner. I will be able to move the burner higher or lower in relation to the bottom of the pot.
Can I use a single burner from a cast iron camp stove or should I look for something bigger?
Jim


"Whensoever the General Government assumes undelegated powers, its acts are unauthoritative, void, and of no force." --Thomas Jefferson

 
Posts: 6173 | Location: Richmond, Virginia | Registered: 17 September 2000Reply With Quote
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quote:
Originally posted by arkypete:
Hey Fellas
Will the gas burner from a natural gas/propane camp stove heat up a 15 inch by 12 inch deep pot of wheel weights?
In the past I've used a small furnace fired by coal with a blower to heat up this pot with good results.
I've cajoled my son-in-law into building a angle iron stand for the pot and an adjustable platform for the burner. I will be able to move the burner higher or lower in relation to the bottom of the pot.
Can I use a single burner from a cast iron camp stove or should I look for something bigger?
Jim


Burner from a cajun cooker/ aka turkey fryer will. I dunno about a camp stove burner.


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Posts: 1570 | Location: Base of the Blue Ridge | Registered: 04 November 2002Reply With Quote
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Bigger (really, more BTU's, not size) the heat source, the better. In all situations. In the larger pots, consider placing about an inch of coal oil, diesel fuel, and a shot of gasoline to ignite it. It will take about half the time to get the lead melted. ... felix


felix
 
Posts: 477 | Location: fort smith ar | Registered: 17 September 2002Reply With Quote
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quote:
Originally posted by felix:
Bigger (really, more BTU's, not size) the heat source, the better. In all situations. In the larger pots, consider placing about an inch of coal oil, diesel fuel, and a shot of gasoline to ignite it. It will take about half the time to get the lead melted. ... felix


Let me get this straight....take my pot and fill with WW, add diesel with a touh of gas, light my turkey fryer and then light fuel in pot? Wil the carbon heavy smoke help at all with fluxing or wil this be gone when the melt has formed?


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Posts: 47 | Registered: 03 April 2005Reply With Quote
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I made a bottom pour smelter pot. I started with a 10" pipe about 12" long. I welded a pipe fitting in the bottom, put a stand inside to put a handle on. Similar to the Lee dribble master. I keep a cookie sheet under it to catch the dribbles, but it isn't too bad. I put it on a Turkey cooker and use a weed burner on the top to get things going. It is really fast to fill it full and drian it out the bottom into ingot molds.


Lar45

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Posts: 2924 | Location: Arkansas | Registered: 23 December 2002Reply With Quote
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Johnny, you will flux again anyway, so forget what is left over after the top burn. Just use cheap motor oil for a good flux when doing a large, junky batch. Motor oil does not have to be quality at all. In fact, used would be OK.


felix
 
Posts: 477 | Location: fort smith ar | Registered: 17 September 2002Reply With Quote
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Jim,
See if you can find the burner from an old gas water heater. More BTU output than any "stove" type burner. Probably get it free, too.

Then you can decide if you want to burn propane or natural gas. Cool


Regards,

WE
 
Posts: 312 | Location: SW Idaho | Registered: 02 January 2003Reply With Quote
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Cast Iron cookware makes excellent lead melting pots. They can be purchased very cheaply in most any camping section. Even Wal-Mart has them. billt
 
Posts: 1540 | Location: Glendale, Arizona | Registered: 27 December 2003Reply With Quote
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