Crucible, Crucible Steel, and Crucible Tong Information
Crucibles and Crucible Tong Information along with Crucible
Steel Information
From
the earliest attempts to make lead into gold and to the more modern use of
making those empty soda cans into a replacement part for that model plane,
crucibles have been an absolute necessity in metal casting.
Crucibles are placed inside of the furnace where the metal is placed and then
melted. The crucible then collects the melted alloy which will then be
poured into the model. Since the crucible will be holding metals melted at
extremely high temperatures the crucible will need to be created from very
strong material. The durability of the crucible will add a certain aspect of
safety to the metal casting process. Using a crucible that is low in quality
can result in shattering, which, let’s face it, is never ever a good thing.
Any crucible at any given moment can shatter or fail which is why using
appropriate safety gear at all times is so important. In order to handle the
crucible which will be red hot you will need to wear boots, jeans, and gloves.
The tools for lifting the crucible from the furnace and then the tool for
tilting the crucible so that the molten metal will pour easily into the mold
will vary crucible from crucible. Those that make their own crucible will be
able to create them in an identical manner so the same tools can be used.
The idea of these tools is to make sure that the crucible can be safely and
securely lifted and poured. You will never want to directly touch a hot
crucible, even with gloves.
For those that either can not or will not make a home made crucible can buy a
crucible and tools from any of the online stores. A common material for
crucibles is graphite as it can withstand the molten metal. Many who cast metal
will prefer using graphite crucibles as it can prevent impurities from being
introduced into the gold or other precious metal being used. Another
option is the Silicon Carbide crucible.
Silicon Carbide is a great though expensive alternative to the graphite
crucible. A crucible made from Silicon Carbide can handle rougher
treatment then graphite so if you are not particularly gentle with your toys
then this is a terrific option.
Yet another option available to the home foundry is creating your very own
crucible. Many don’t really recommend this since commercially created crucible
tend to be more durable and will instill a bit more confidence in the casters.
It is, however, possible to create a crucible as many of us will at one time or
another.
If you plan on creating your own crucible then keep this in mind. There are a
few areas of home metal casting where you should not cut corners, these
definitely include crucibles. The crucibles job is the transportation of
incredibly hot molten metal which can easily exceed 1,000 degrees Fahrenheit
and is really the only thing between you and this metal. When you plan on
melting metals with extremely high melting points you will need crucibles made
from material that will cost a little extra. Spend that money and do so gladly
since it is just a small price to pay for your safety.
Crucibles should only be used to melt one kind of metal. If you have always
melted aluminum but decide to try melting brass then you will need a new
crucible. This is done for safety reasons. Remember , a crucible is not meant to
last forever. Always check your crucible before use to make sure there are not
cracks or imperfections if there are then do not use that crucible.
Crucibles come in a variety of sizes and can be made from a variety of
materials. It all depends on the type of metal to be used and the size of the
job. Never skimp on the price of this tool and always follow safety guidelines
and use common sense when dealing with a hot crucible.
About the author
Go to Metal Casting Zone to get
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Tags: boots, cruc, crucible steel, crucible tong, durability, empty soda cans, furnace, gloves, graphite crucibles, high temperatures, impurities, lead into gold, metal casting, metals, model plane, mold, molten metal, precious metal, safety gear, silicon carbide
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