Amorphous graphite: application in the foundry industry

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Amorphous Graphite

 

 

Size

45μm, 75μm, 150μm, etc

Package

25kg small bags into ton bags or ton bags

Origin

China

Features

Under high temperature conditions, it has special oxidation resistance, etc

Application

Casting coatings, oil field drilling, battery carbon rods, steel, casting materials, refractories, dyes

It is an aggregate of amorphous graphite. The crystal form can be seen only under the electron microscope. Amorphous graphite ore is gray black and steel gray, generally dull, with dense massive, earthy, layered, and lamellar structures. This kind of graphite lacks luster, its lubricity is lower than that of flake graphite, and its selectivity is poor. However, the grade is high, the carbon content is generally 60% ~ 80%, a few are up to more than 90%, the ash content is 15% ~ 22%, the volatile content is 1% ~ 2%, and the moisture content is 2% ~ 7%.

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    Amorphous graphite is a unique form of graphite that is widely used in the foundry industry. Its unique properties, including fine particle size, high carbon content and excellent thermal conductivity, make it a valuable material in many casting processes.

    Amorphous graphite
    Amorphous graphite

    Properties of amorphous graphite

    Amorphous graphite does not have a specific crystal structure, Compare to crystalline graphite. Instead, it has a more disordered structure, giving it different properties. It is soft and its particles are irregularly shaped. In addition, it has a high carbon content, making it an excellent conductor of heat and electricity.

    (1) Excellent thermal stability, making it an ideal material for lining crucibles, blast furnace linings and other high-temperature applications.

    (2) It has a low coefficient of thermal expansion, which means that it is not easy to crack compared to other refractory materials.

    Benefits of amorphous graphite in the foundry industry

    Amorphous graphite has its unique properties in foundry industry.

    (1) Low ash content, which makes it an ideal material for casting molds. The low ash content means that it burns clean during the casting process, leaving a high-quality finished product. This property also makes amorphous graphite more environmentally friendly compared to other types of casting materials.

    (2) It has higher thermal conductivity than other graphite. This makes it an ideal material for casting molds and cores. High thermal conductivity allows heat to be transferred efficiently during the casting process, resulting in better-shaped, more consistent castings.

     

    Applications of amorphous graphite

    Our amorphous graphite can be used in the following applications:

    (1) Production mold: usually used for casting metal parts. The fine particle size of amorphous graphite allows it to be mixed with other materials, such as sand, to form molds. It is capable of producing smooth castings with excellent dimensional accuracy. It is easy to process, so it is easier to manufacture molds with complex shapes. The high carbon content of amorphous graphite helps to increase the strength of the mold, while its thermal conductivity helps ensure that heat is evenly distributed throughout the mold during the casting process.

    Amorphous graphite
    Amorphous graphite

    (2) Casting coating: Casting coating is applied to the surface of the mold or core to improve the quality and finish of the casting. Amorphous graphite coatings are effective because they increase the green strength of the mold or core, which means that the material can withstand more stress during the casting process.

    (3) Production of batteries and lubricants. Its unique properties make it a valuable material in many applications, and its wide availability makes it an important industrial mineral.

    (4) Production of refractory materials, crucibles and molds. The refractories made have excellent heat resistance and can be ideal for high-temperature environments such as furnaces and kilns. Similarly, crucibles made of amorphous graphite are highly resistant to thermal shock and can withstand high temperatures, making them ideal for melting and casting metals.

    (5) Steel recarburizer. It can help improve the properties of metals, such as strength and hardness. The addition of amorphous graphite can also reduce the amount of energy required to smelt steel.

    Amorphous graphite plays an important role in the foundry industry due to its unique properties as molds, cores and coating materials. Its low ash content and high thermal conductivity make it a popular choice for foundries. The amorphous graphite at the Franli graphite factory can be applied to a wide range of industries to produce high-quality and consistent castings. If you need it, you can contact us, we will provide affordable prices and high-quality raw materials.