Our goal is to become your true partner in the field of graphite block in China. Shanghai IUGIS Carbon Industry Co. LTD is a company specializing in the supply of graphite products. Our professional knowledge can effectively solve your problems.The factory has accumulated rich manufacturing experience. Our company is committed to applying advanced manufacturing technology and strict quality control standards to every product. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.
-
![Graphite Block for Casting and Moldling]()
Graphite Block for Casting and MoldlingGraphite block is a natural mineral formed by carbon atoms arranged in a hexagonal honeycomb shape. It has excellent physical properties such as electrical conductivity, thermal conductivity, low... -
![EDM Graphite Electrode Block]()
EDM Graphite Electrode Blockgraphite block is a natural mineral formed by carbon atoms arranged in a hexagonal honeycomb shape. It has excellent physical properties such as electrical conductivity, thermal conductivity, low...
Why Choose Us
Product Application
Our company's main products are: graphite blocks, spark graphite, graphite rings, graphite split rings, etc. These products are widely used in metallurgy, smelting, scientific research laboratories and other industries.
Our Production Capacity
Our company has advanced production equipment, and the quality and quantity of our products are guaranteed.
Our Service
The company has a professional sales team to provide you with high-quality pre-sales consulting services. During the order production process, customers can communicate with us at any time to understand the production progress. At the same time, we provide high-quality after-sales service to meet the different needs of customers.
Advantages of Graphite Block
High temperature resistance: Graphite melting point is 3850 + 50 ℃, boiling point is 4250 ℃, even by the ultra high temperature arc ignition, weight loss is small, thermal expansion coefficient is small.Graphite with temperature increase and strengthen the intensity, at 2000 ℃, the intensity of graphite double.
Conductivity: Graphite conducts electricity because each carbon atom in graphite forms only three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transfer charge.
Lubricating property: The lubricating property of graphite depends on the size of graphite scales. The larger the scale, the smaller the friction coefficient and the better the lubricating property.
Chemical stability: Graphite has good chemical stability at room temperature, acid, alkali and organic solvent corrosion resistance.
Plasticity: Graphite has good toughness and can be ground into very thin sheets.
Thermal shock resistance: When graphite is used at room temperature, it can withstand the drastic change of temperature without damage. When the temperature changes abruptly, the volume of graphite does not change much and cracks will not occur.
Application of Graphite Block
Powder metallurgy: In powder metallurgy, graphite blocks are used in sintering, where raw materials are placed on a graphite block and melted. The high temperature and oxidation resistance of graphite blocks meet the demanding requirements of the powder metallurgy industry.
Foundry industry: Metals can be heated in a graphite crucible up to 2732°f (1500°c) to convert them into liquid form for graphite mold casting, a method used for casting various industrial products. Graphite molds, similar to metal molds, offer good thermal conductivity and thermochemical stability.
Electrodes: Graphite blocks used in the manufacture of electrodes possess high electrical conductivity and refractory properties, including thermal shock resistance and low thermal expansion. These blocks are uniquely capable of withstanding the required electrical conductivity for electric arc furnaces, as well as enduring the extreme heat levels involved in the process.
Nuclear fusion: Synthetic graphite blocks are primarily used as moderators or reflectors in nuclear reactors. For uranium fission to take place effectively, the neutrons generated must be slowed down by a neutron moderator, which is typically a material with low atomic weight. Initially, heavy water was used for this purpose, but it was later replaced by graphite due to its high purity.
Types of Graphite Block
Pyrolytic graphite (pg) blocks: Pyrolytic graphite blocks are created through the decomposition of hydrocarbon gas, typically methane, in a vacuum furnace to produce extremely pure graphite. This process is slow, time-consuming, and costly.
Amorphous graphite blocks: Amorphous graphite blocks, also known as aphanitic or cryptocrystalline graphite, are composed of microcrystalline graphite. They form a dense aggregate of tiny natural graphite crystals, giving them a gray-black or steel-gray color with a shiny metallic appearance.
Flake graphite blocks: Flake graphite blocks are derived from natural graphite found in metamorphic rock. These blocks feature a layered structure where carbon atoms are arranged in a hexagonal lattice, with each layer consisting of carbon atoms in an sp2 configuration.
Crystalline vein graphite blocks: Crystalline vein graphite is a natural form of pyrolytic carbon that can vary in particle size, appearing either flake-like with fine particles or in medium-sized particles. It is one of the most crystalline forms of graphite, with carbon purities ranging from 80% to 90%.
Synthetic graphite blocks: Synthetic graphite blocks have gained widespread popularity due to their high purity and availability. The specific form of synthetic graphite blocks often dictates their application in various industries. For instance, synthetic graphite blocks, also known as isotropic graphite, are commonly used in energy storage solutions within the solar industry.
Specification of Graphite Block
Manufacturing Process of Graphite Block
Raw material selection: The first step in making graphite blocks is selecting the raw materials. High-quality graphite starts with high-purity carbon. Typically, natural graphite is used, which is mined from graphite deposits. Synthetic graphite, produced from petroleum coke or pitch coke, is another option.
Purification: Regardless of the source, the raw graphite undergoes purification to remove impurities and achieve the desired level of purity. Purification methods May include chemical treatments, thermal processes, and mechanical purification techniques.
Mixing and blending: Once purified, the graphite powder is mixed with binders and additives. Binders help hold the graphite particles together during shaping and initial stages of processing. Additives May include substances that improve the material's properties, such as strength, density, or thermal conductivity.
Shaping: The mixed graphite blend is then shaped into blocks through a process known as compression molding. In this method, the graphite mixture is placed into a mold cavity and subjected to high pressure. The pressure compacts the mixture, squeezing out excess air and ensuring uniform density throughout the block.
Thermal treatment: After shaping, the green graphite blocks undergo a series of thermal treatments to further enhance their properties. The blocks are heated to high temperatures in a controlled atmosphere or vacuum environment.
Machining and finishing: Once graphitized, the blocks are machined to achieve precise dimensions and surface finishes. Machining processes such as milling, drilling, and grinding are employed to shape the blocks according to specific requirements.
Throughout the manufacturing process, rigorous quality control measures are implemented to ensure that the graphite blocks meet the required standards and specifications. Quality checks may include dimensional inspections, density measurements, material composition analysis, and mechanical testing. Any deviations from the desired parameters are identified and addressed promptly to maintain product consistency and integrity.
Depending on the intended use, additional processing steps may be required to tailor the graphite blocks to specific applications. For instance, in nuclear reactors, the blocks may undergo further treatments to achieve desired neutron-absorbing properties or to accommodate thermal expansion requirements.
Other Service of Graphite Block
|
Package |
Wooden case |
|
Shipping |
Air/Sea/Express |
|
Payment |
T/T, Western Union, Paypal |
|
Lead Time |
5-7 Weeks |
|
Supply Ability |
1000 Tons/ Month |
As one of the most professional graphite block manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy graphite block made in China here from our factory.
EDM Graphite, Graphite Block for Casting and Moldling, carbon graphite productsPopular Products
