What is a graphite crucible?
The cup graphite is a container that is usually used for melting non-ferrous-or non-cuts such as gold, silver, aluminum or brass. Graphite, a form of carbon, is often used for cups due to its high -temperature resistance and low reactivity with molten metals. The graphite of the crucible is usually made of graphite and clay, which is shaped and fired at very high temperatures to form a solid container.
The purpose of the graphite crucible is to provide a non -perial container that will survive the high temperatures needed for metal melting and processing. Krucibles provide a stable container that does not respond to the burning of metals or materials at high temperatures. Graphite is a carbon that could resemble flakes or leaves. When mixed with clay, graphite can be shaped into containers or containers that are durable and durable and durable. Like many ceramic containers, graphite cups can be fragile and should be treated with care.
There are different types of cups that differ especially in itsh form. Common shapes include "bilge", which are in the shape of a head; and "a" that are in the shape of a cup. The "A" joints can be cheaper because the shape of the open cup is easier to make than the shape of the barrel.
The use of the graphite crucible correctly includes conditioning and storage. It is important that the new graphite crucible is conditioned before use. It should be placed in the oven at 500 degrees of Fahrenheite (260 degrees Celsius) for two hours and then left to cool slowly in the dry area. This controls moisture from the crucible and prevents cracking. The crucible should be stored from moisture and should be re -conditioned if it is soaked.
The cup graphite should be completely cleaned when used. The metal should not be allowed to remain in the crucible. The residual metal can expand and burst the when warming up the crucible. Should be used by cups that match tboiling a cup. To avoid cracking, the pliers should stick to the crucible without exerting pressure on the sides.
graphite cups can be damaged by incorrect use or handling. They should not be used for metals containing iron, as the iron will react directly with the carbon in the cup and change the metal composition or destroy the cup. Fixed metals should be freely packed in a crucible before warming up. Metals could spread and a firmly wrapped cup can burst or fail. Water or wet metals should never be added to the molten metal in the cup, as this could cause a steam explosion or result in a crucible failure.