Your Professional Fine Grain Graphite Blocks Supplier
Henan Daking Import and Export Co., Ltd. (Henan Daking for short) is one of China's professional production, research and development, sales of graphite mold manufacturers. The company is committed to providing customers with high quality graphite raw materials and precision graphite products processing. Henan Daking is willing to cooperate wholeheartedly with new and old customers at home and abroad with superb technology, high quality products and sincere service, to create a better tomorrow hand in hand.
Why Choose Us
Quality products
The company is committed to providing customers with high quality graphite raw materials and precision graphite products processing.
Rich experience
We have years of industry experience and a team of experienced engineers and technicians to ensure consistent precision and high quality of our products.
Reliable service
Our team is committed to providing reliable and consistent service, ensuring that you receive high-quality products and customer support from us every time.
One-stop solution
We are one of China's professional production, research and development, sales of graphite mold manufacturers.
- The processing materials are ultrafine granule structure, high purity and graphite with high graphitization degree.
- High hardness, good anti-oxidation performance and high machining accuracy
- Good conductivity, high resistivity, sufficient mechanical strength
- Small porosity and dense structure.
- Excellent thermal shock resistance, conductive and thermal conductivity.
- High temperature resistance, corrosion resistance, acid and alkali resistance, good wear resistance.
- Surface can be treated with anti-oxidation.
Types of Fine Grain Graphite Blocks
Isostatic Graphite Block
Produced through isostatic pressing, where uniform high pressure is applied from all directions to compact fine graphite powder. This results in a highly dense, homogeneous structure with superior mechanical strength and dimensional stability.
Extruded Graphite Block
Formed by forcing a graphite paste through a die under high pressure, resulting in a directional (anisotropic) grain structure. This method allows for continuous production of long, consistent shapes.
Molded Graphite Block
Manufactured by compressing graphite powder in a mold cavity under high pressure. While simpler and more economical, this method may result in slight density variations depending on mold design and pressure distribution.
Graphite Impregnated Block
Treated with resins, metals (like copper or antimony), or lubricants to fill pores and enhance performance. Impregnation improves strength, reduces permeability, and increases resistance to oxidation and wear.
Manufacturing Methods of Fine Grain Graphite Blocks
The production of graphite with a specific grain size involves precise control over raw material selection, mixing, forming, and graphitization processes.
Isostatic Pressing
Often used to produce fine grained graphite. In this method, pressure is applied uniformly from all directions, resulting in highly isotropic material with consistent density and grain size throughout the volume.
Molded Graphite
Used for both fine and coarse grained types. It involves uniaxial pressing of graphite powder in a mold, followed by baking and graphitization.
Vibration Molding
Commonly used for medium to coarse grained graphite. This process allows the formation of large blocks and is more cost-effective for bulk production.
Extrusion
Frequently used for cylindrical shapes, like rods and tubes. While it supports both fine and coarse grain, it's less isotropic than isostatic pressing.
Making Graphite Electrodes for Steel Factories
You can always machine graphite blocks into electrodes required in the electric arc furnaces (EAF) that transmit high-voltage electricity.
Heat Insulators in Furnaces
In various furnaces including metallurgical furnaces, graphitization furnaces, and silicon carbide furnaces, graphite blocks maintain efficiency as heat insulators.
Heating Elements in Furnaces
You can employ graphite blocks as heating components in your specific kinds of industrial furnaces. These blocks function as a consistent as well as controllable heat source when there is an electric current flowing through them.
Electrodes in Electric Discharge Machining (EDM)
In EDM, graphite blocks are machined into electrodes that play the role of forming hard metals. The electrodes produce electric sparks that erode the surfaces of the metals, making it easy for you to shape hard metals.
Moderator in Nuclear Reactors
Graphite blocks have high importance as a moderator in nuclear reactors. Here neutron is slowed down and nuclear fission reactions are maintained at a slow and steady pace.
Machining to Dies and Molds
Graphite blocks enjoy good machinability making them suitable for making molds and dies especially for use in the metal processing industry. Graphite die is commonly used in the casting of metals because it has high temperature and pressure strength.
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We're professional fine grain graphite blocks manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade fine grain graphite blocks made in China here from our factory.
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