What Is High Quality Graphite Plate?
High quality graphite plate is a plate made of processed graphite material. It inherits many excellent properties of graphite, such as high electrical conductivity, high thermal stability, good chemical stability and unique lubrication properties.
In the field of science and technology, graphite plates are widely used in the electronic and electrical industries due to their excellent conductive properties. For example, graphite plates play an indispensable role in the fields of integrated circuits, semiconductor devices, and new energy batteries. In addition, graphite plates also have good thermal conductivity properties, so they are also widely used in high-tech fields such as aerospace and nuclear energy.
Advantages of High Quality Graphite Plate
Extended service life
High-quality graphite sheets can be treated with anti-oxidation, which greatly extends its service life. This is especially beneficial in applications such as high-quality graphite sheets, where the material is exposed to high temperatures and corrosive substances.
Resistant to erosion and contamination
The production of high-quality graphite sheets with high bulk density and low porosity can effectively resist the erosion of molten metals such as aluminum and their gas particles. High-quality, high-purity, low-ash graphite sheets avoid the release of volatile substances, which prevents the formation of spots and holes on the metal coating.
High temperature performance
High-quality graphite sheets can operate at extremely high temperatures up to 3000°C, making them suitable for demanding applications such as sintering and debinding in furnaces. Its chemical inertness enhances its stability and resistance to corrosion, which is crucial in the melting process because the material inside the crucible should not react with high-quality graphite sheets.
Uniformity and ease of maintenance
High-quality graphite sheets have excellent emissivity and produce a high degree of uniformity during the process. It's also easy to replace or repair high-quality graphite plate components such as hot spots and shields, which helps maintain the efficiency and longevity of the equipment.
Anisotropic and isotropic
Depending on the type of high-quality graphite sheet, its properties can be anisotropic or isotropic. Isotropic high-quality graphite sheets have uniform properties regardless of orientation, which is especially valuable in applications where consistent performance is critical.
High-quality graphite sheets are usually used in metallurgical furnaces, resistance furnaces, chemical equipment, mechanical molds, etc.
Graphite Bipolar Plate Graphite Battery Plate
Graphite bipolar plates are used in industries such as flow batteries, fuel cells, and all-vanadium flow battery electrolyte preparation. Specific performance parameters can be customized and processed according to customer requirements.
High-purity graphite plates can be used as negative electrode materials for lithium-ion batteries, hydrochloric acid batteries, alkaline batteries and other batteries. They can also be used as electrode materials for solar cells.
High-density graphite plate is a high-quality material with a density of about 1.88. It has higher volume density, low resistivity, and small thermal expansion coefficient. It can be processed into graphite anode plates, graphite bipolar plates and other different shapes.
The density of isostatically pressed graphite is usually higher than that of high-purity graphite. The isostatic pressing process can make the graphite powders more closely arranged together, thereby forming a stronger graphite embryo.
High Temperature Resistant Graphite Plate
Graphite plate is a refractory material with the characteristics of high temperature resistance, high chemical stability and high electrical conductivity. It is commonly used for heat insulation and protection of high-temperature equipment such as vacuum furnaces, annealing furnaces, electric furnaces, etc., and is also used in semiconductor, metallurgy, chemical and other fields.
High-strength graphite sheets can be used to make sealing materials, lubricating materials and wear-resistant materials for various vacuum equipment. They have high volume density, high temperature resistance, high mechanical strength, strong chemical stability, corrosion resistance, strong acid and alkali resistance, and excellent Thermal shock resistance, electrical conductivity and thermal conductivity.
High Quality Pure Graphite Plate
High-quality pure graphite plates, compared with ordinary graphite plates, have higher volume density, higher strength, stronger corrosion resistance, acid and alkali resistance, and higher electrical conductivity. Therefore, they are widely used in battery materials, energy storage, thermal conductive materials, and high-temperature materials. , chemical batteries, electrochemical containers, optical components, photoelectric sensors and other fields are widely used.
Pure graphite sheets are divided into high-purity graphite sheets and isostatically pressed graphite sheets. Isostatically pressed graphite is manufactured by using an isostatic pressing process under high temperature and high pressure, while high-purity graphite is manufactured by a traditional manufacturing process. Isostatically pressing The physical properties of graphite are better than those of high-purity graphite.
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Application of High Quality Graphite Plate
Heat industry
Graphite plate has excellent thermal conductivity and high temperature resistance, and is often used in the manufacture of various high temperature equipment and parts, such as graphite heat exchangers, graphite heaters, graphite crucible and so on.
Chemical industry
Because of its good corrosion resistance, graphite plate is often used in the manufacture of chemical equipment, anti-corrosion coatings, seals, etc., especially suitable for various acid and alkali medium environment applications.
Photovoltaic industry
Graphite plate can be used as the base material of solar cells, used to support and fix solar cell chips, and has good electrical conductivity and corrosion resistance.
Machinery manufacturing
Graphite plate can be used to manufacture a variety of sealing gaskets, fillers, bearings and other parts, its self-lubrication and wear resistance make it widely used in machinery manufacturing.
Aerospace field
Graphite plate has light weight and excellent high temperature resistance, and is often used in the manufacturing of spacecraft parts in the aerospace field.
Power industry
Graphite plates can be used to manufacture electrolytic cells, electrodes and other power equipment, with good electrical conductivity and oxidation resistance.
Physical Properties Of High Quality Graphite Plate
Electrical conductivity
High quality graphite plate is an excellent electrical conductor due to its free delocalized electrons, which can freely travel throughout the sheets. It has higher electrical conductivity when compared to diamond.
Thermal conductivity
High quality graphite plate is also a good thermal conductor because it has a very low coefficient of thermal expansion. However, diamond is a better thermal conductor due to its compact atoms.
High melting point
High quality graphite plate has an extremely high melting point of about 3500 °c.
Lubrication
The layers of high quality graphite plateare bonded together by weak forces, which allow one layer to slide over another. As a result, the structure can be sliced along plane lines. As a result, black lead is pliable and slick.
Density
Because of the great distance among successive layers, its density is 2.26 g/cm3, which is much lower when compared to the density of a diamond.
Lustre
High quality graphite plate includes delocalized electrons that can freely migrate through multiple levels of the high quality graphite plate lattice, reflecting any light that strikes them. The surface seems glossy or lustrous because the reflection is specular rather than dispersed.
Insoluble
Because the attraction between solvent molecules and carbon atoms is not strong enough to overcome the covalent connections between the carbon atoms in high quality graphite plate, it is insoluble in organic solvents and water.
How to Maintain High Quality Graphite Plate
Temperature control
The graphite plate should pay attention to temperature control during heating to avoid loss of graphite plate due to excessively high or low temperature. When using graphite plate for heating. The temperature should be set correctly according to specitic requlrements, and tny to avoid overheating and burning of graphite plate due to excessive temperature.
Slow temperature change
Graphite plate is more sensitive to temperature changes, and sharp temperature changes should be avoided as much as possible during heating and cooling. Especially when using graphite plate under high temperature, attention should be paid to the slow process of temperature change to avoid cracking or damage of graphite plate caused by thermal stress.
Avoid mechanical shock
Graphite plate has a certain britleness and is easily broken by mechanical shock. When storing and carying graphite plate, care should be taken to handle it with care to avoid impact or colision. During use, graphite plate should be protected from external impact or collision to avoid cracks or damage to graphite plate.
Cleaning and maintenance
Regular cleaning of the graphite plate is an important part of maintenance. According to the use of the graphite plate, you can choose to wipe it with a damp cloth or use a hair dryer to blow away dust and impurities. Lfthere is oil or residue on the surface of the araphite plate, you can use a special cleaner to clean it and clean it thoroughly with clean water.
Prevent corrosion
Graphite plates are susceptible to corosion in some special environments, such as erosion by chemicals such as acids and alkalis. When using, care should be taken to avoid contact with these corrosive substances to prevent the surface of the graphite plate from being corroded and damaged.
Prevent adhesion
During the heating process of the graphite plate, the high temperature will cause some substances to adhere to the surface of the araphite plate. Especially liauid or semisoid substances, these adhesions mav afect the thermal conductivitv of the graphite plate or cause damage. Therefore, when using the graphite plate, care should be taken to avoid liquid or semisolid substances from contacting the surface of the graphite plate.
Maintenance and storage
Lfthe graphite plate is not used for a long time, it should be stored in a dry, ventlated place and properl protected. You can use a special packaging box or protective cover to wrap the graphite plate to avoid the intrusion of dust and Impurities.
Preparation of raw materials
The main raw materials for the manufacture of high-quality graphite flakes are coke and high-quality graphite flakes. These materials are first ground into fine particles. These particles are then mixed in a mixer with binder bitumen to form a homogeneous clump.
Molding
The mixture is then molded into the desired shape using techniques such as isostatic pressing, extrusion, vibration molding, or molding. This results in a "green" material, i.E. The initial shape of a high-quality graphite sheet product.
Carbonization
The molded "green" material undergoes a carbonization process in an oxygen-free environment of about 1000°c. This process creates an adhesive bridge between solid particles, enhancing the structural integrity of the material.
Graphitization
After carbonization, the material undergoes graphitization. This process converts amorphous carbon into a three-dimensional ordered graphite structure. This is achieved by heating the material to about 3000°c in an inert gas. In this process, the carbon atoms are rearranged into graphene layers to form perfect graphite crystals.
Secondary grinding and isostatic pressing
After initial forming and heat treatment, the high-quality graphite sheet material can be further ground to achieve the desired particle size. The fine particles are then isostatically pressed, placed in a mold and exposed to high pressure (over 150 mpa). This ensures an even distribution and arrangement of high-quality graphite flake particles, resulting in consistent properties across the material.
Processing and forming
High-quality graphite sheet materials are then processed into final product shapes, such as tubes, rods, or plates, using techniques such as extrusion, compression molding, or isostatic pressing. These processes allow for tailor-made dimensions and performance to specific applications.
Purification and surface treatment
For applications that require high purity, such as the semiconductor industry, high-quality graphite flakes are chemically purified, often involving treatment with halogen gases at high temperatures. Depending on the intended use, the surface of a high-quality graphite sheet can also be treated to obtain a specific surface finish.
Final inspection and shipment
After all the processing steps are completed, the quality inspection of the high-quality graphite sheet products is carried out and then ready to be shipped to the customer.
What Conditions Need to Be Considered for the Purchase of High-Quality Graphite Sheets
Purity of the material
Check the carbon content of high-quality graphite sheets, which directly affect their conductivity and other properties. High-purity, high-quality graphite sheets are often used in demanding applications, such as semiconductor manufacturing.
Density and hardness
High density means a finer crystal structure, and such high-quality graphite sheets are generally more durable and durable. Hardness is also a measure of wear resistance and is especially important for applications that need to withstand friction.
Flexural strength
This is a measure of the material's ability to withstand bending without breaking. The choice should take into account the forces that may be encountered in real-world applications.
Heat and oxidation resistance
High-quality graphite sheets are able to work stably at high temperatures, but different high-quality graphite sheets can withstand different maximum temperatures. In addition, oxidation resistance is also important because graphite reacts with oxygen under certain conditions.
Electrical and thermal conductivity
These physical properties are critical for many applications, especially when used as electrode materials.
Machining quality
This includes dimensional accuracy, surface finish, and the presence of defects such as cracks, holes, etc. High-quality processing can guarantee the performance of high-quality graphite sheets during use.
Size and shape
Choose the right size and shape for your needs, and some applications may require custom high-quality graphite sheets.
Corrosion resistance
The corrosion resistance of high-quality graphite sheets is also very important when used in specific chemical environments.
Price and supplier credibility
Considering the cost factor and long-term supply relationship, it is wise to choose a cost-effective product and a reputable supplier.
Safety standards and certifications
Ensure that the materials selected meet industry standards and safety requirements, especially in regulated industries such as food processing, medical, and aerospace.
Environmental factors
Knowing where high-quality graphite sheets come from and whether environmentally friendly measures are in place during production is becoming more and more important in today's society.
After-sales service
Investigate whether the supplier can provide good after-sales service, including technical support, quick response, and return policy.
Company Introduction
Huixian Hongshun Graphite Co., Ltd. focuses on graphite design and processing. The company has more than ten years of experience in graphite processing. The company has a series of completed production systems for design and processing.
Our team can design various graphite products for you.
Support drawing customization and sample processing.
Can provide you with 24-hour after-sales service and technical support.
Recommend products suitable for you at reasonable prices and ship quickly.
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