Graphite crucible Features

Graphite crucible is made of natural flake graphite as the main raw material and plastic refractory clay or carbon as the binder.It has the characteristics of high temperature resistance, strong thermal conductivity, good corrosion resistance and long service life. During high-temperature use, the thermal expansion coefficient is small, and it has certain strain resistance to rapid cooling and rapid heating.
Silicon carbide graphite crucible produced by Henan Lite Refractory Materials Group have the characteristics of good flexibility, not easy to crack, and long service life, and also the large capacity of the sagger increases the output, guarantees the quality, saves labor and lots of costs.

Graphite crucible applications

1. Metal melting and casting (the most important and widespread application) Non-ferrous metal melting: Aluminum alloy: Used for melting, holding and pouring of aluminum alloys. Its high thermal conductivity can significantly shorten the melting time and improve efficiency; excellent thermal shock resistance enables it to withstand repeated hot and cold impacts of the aluminum liquid; it does not react with the aluminum liquid, ensuring the purity of the alloy. Copper and copper alloys: Melting pure copper, brass, bronze, etc. It can withstand the higher melting temperatures of copper alloys (approximately 1100 - 1300°C), and has good resistance to the erosion of copper liquid. Precious metals: Widely used in the smelting and purification of precious metals such as gold, silver, and platinum. Low-melting-point alloys such as zinc, lead, and tin: Although their melting points are not high, they require a certain level of chemical corrosion resistance for the crucible. Silicon carbide and graphite crucibles are also applicable.

2. Metallurgical and Chemical Processes Rare earth metallurgy: The preparation of rare earth metals and their alloys requires high temperatures, vacuum conditions, or inert atmospheres. Silicon carbide and graphite crucibles can meet these demanding conditions. Purification of industrial silicon and polysilicon: Such crucibles are also used in the high-temperature purification process of silicon materials. Chemical material synthesis: Used for certain chemical synthesis reactions at high temperatures, as a reaction vessel.

3. Glass Industry Glass Melting: This process is used to melt special glass, optical glass, colored glass, etc. It has good resistance to the glass melt and does not introduce excessive impurities, thus ensuring the quality of the glass. Glass fiber: In the drawing process, such crucibles are sometimes used to hold and transport the glass liquid.

4. New Energy and New Materials Industry Sintering of lithium-ion battery materials: The high-temperature sintering process for positive electrode materials (such as lithium iron phosphate, lithium cobalt oxide, and ternary materials) and negative electrode materials. The crucible needs to have high purity and high stability at high temperatures (sometimes up to over 1000°C), and it should not react with the battery materials. Silicon carbide and graphite crucibles are ideal choices. Photovoltaic industry: Auxiliary materials used in the processes of polysilicon and monocrystalline silicon ingot production, or for sintering of some photovoltaic materials.

5. Other high-temperature industrial fields Ceramic sintering: Used for high-temperature sintering of special ceramics and electronic ceramic components. Powder metallurgy: As a container for sintering certain metal powders.

Graphite crucible cooperation cases

These projects are the actual ones that our company has undertaken.Henan Lite Refractory Materials Co., Ltd. has served over 5,000 projects and has been dedicated to the production and research and development of refractory materials for 30 years. It possesses professional technology and a mature team. Its products have been exported to various markets around the world and it is a highly renowned enterprise. Moreover, it has overseas warehouses, which facilitate rapid delivery and ensure product reliability.

Hot Tags: silicon carbide graphite casting crucible, China silicon carbide graphite casting crucible suppliers, manufacturers, factory