Graphite crucibles can be divided into two categories: machined graphite crucibles and clay graphite crucible. CFCCARBON LTD can produce both kinds of the graphite crucibles with large amount, stable and reliable quality. Our Products were sold throughout the country and exported to Europe, America, Southeast Asia and other countries and regions which enjoy a high reputation all over the world.
Machined graphite crucibles, also known as high purity graphite crucibles. Its produced/ machined from raw graphite material blocks or rods. If it is machined from high purity, high density and high strength graphite, then the graphite crucible is called high purity graphite crucible. the raw graphite material is mainly: isostatic graphite, molded graphite and vibration graphite. Clay graphite crucibles also known as SiC graphite crucibles, and there are mainly 3-4types. See bellow one type for standard type of SiC graphite crucible.
graphite clay crucible, also known as SiC graphite crucible. Because it is main content of this crucible are silicon carbide (SiC) and graphite. Mainly used for melting copper, aluminum and other common metals. The cost of this kind of crucibles is relatively low, with large capacity of molten metal. The crucible molding method is mainly pressure forming method.
Due to different performances, applications, different application conditions, the use of raw materials, production methods, technology and product specifications are also different. The main raw material of graphite crucible is natural crystalline graphite. So it maintains the physical and chemical properties of natural graphite. It has good thermal conductivity and high temperature resistance, it has low coefficient of thermal expansion in the process of high-temperature application, it has a certain anti-strain properties in the sudden cold and hot environmen. It has excellent chemical stability in the acid, alkaline environment, and has strong corrosion resistance. Graphite crucible has more sizes, and not restricted to the production scale, quantity and smelting materials, it can be produced to any size, any quantity, and can ensure the purity of the smelting materials. Graphite crucibles are widely used in the smelting of alloy tool steels and the smelting of non-ferrous metals and their alloys in metallurgy, foundry, machinery, chemical and other industrial areas because of their superior properties. And has a good technical and economic effects.
See the data sheet on pdf file attached: 003-SIC-graphite crucible-1665℃