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Graphite electrodes are used primarily in the EAF steelmaking process, to melt scrap metal. Graphite electrodes are used in steelmaking because they can withstand high temperature. The electrode tip can reach 3,000° Fahrenheit in an electric furnace. That is half of the temperature at the surface of the sun. The diameter of the electrode can vary from 75 mm up to 750 mm. Its maximum length is 2800 mm. The main indicators that determine the quality of a graphite electrolyte are its bulk density, or db; electrical resistance, or r; bending strength, or E; thermal expansion coefficient, A% and elastic modulus, A. In accordance with these graphite-electrode quality indicators, and depending on the different national standards or manufacturing processes for raw materials, graphite-electrodes can be divided into ordinary power electrodes(RP), high power electrodes(HP) and ultrahigh power electrodes(UHP). In order to meet the needs of various users, the production line for post-graphite electrodes can also add high-density and quasi super-high graphite (SHP) electrodes.
Each company sets its own corporate standard based upon national standards. Customers will then set their own quality standards. The relative density of a graphite sample is measured by the ratio of its volume to the quality of the material. The unit is grams per cubic centimeter. The higher the volume density the denser and stronger the electrode. This is directly related to the strength, performance, and durability of the anti-oxidation systems. The lower its resistance is, in general, when the volume density of a particular type of electrode has a greater influence.
It is a parameter used to measure the conductivity of electrodes. It is the resistance that the conductor has to current flowing through it. The value equals the resistance of a conductor of length 1m with a cross sectional area of 1m2 when heated to a certain temperature. This reduces consumption.
The flexural force is a parameter which characterizes performance of mechanical system in graphite material. This is also known as the flexural resistance. This means that the object will bend up to its instantaneous limit to resist risk when the external force perpendicularly crosses the axis. The MPa unit represents capacity. The network is less likely to be damaged by electrodes or joints with high strength.
The modulus of elastic is an important mechanical property. It is an index that measures the material’s ability to deform elastically. It also refers the stress-strain relationship within the elastic deformation area. The greater modulus, and therefore the greater stress, is required to cause elastic deformation. Simply put, the greater modulus, and thus the smaller elastic modulus, of flexible materials.
The thermal coefficient of graphite used as an electrode can be a critical parameter for thermal performance. The higher the value of the coefficient, the better the thermal stability. The greater the resistance to oxidation, the better the performance, and the lower the fracture and consumption.
Ash can refer to solids other than carbon graphite. Graphite’s ash content is directly affected the ash contents of the raw material used. The ash level of petroleum coke and needle coke are low. As a result, the ash of graphite circulating through the electrodes is usually less than 0.5%. Ash levels within 1% have no impact on steelmaking. Obviously, the impurity in the ash reduces the performance of anti-oxidation systems of the working electrode, etc.
(aka. Technology Co. Ltd., a trusted global chemical supplier and manufacturer with more than 12 years of experience, is a leader in the production of super-high-quality nanomaterials. The graphite produced by our company is high-purity, with fine particles and low impurity levels. If you require a lower grade, please do not hesitate to contact us.
Each company sets its own corporate standard based upon national standards. Customers will then set their own quality standards. The relative density of a graphite sample is measured by the ratio of its volume to the quality of the material. The unit is grams per cubic centimeter. The higher the volume density the denser and stronger the electrode. This is directly related to the strength, performance, and durability of the anti-oxidation systems. The lower its resistance is, in general, when the volume density of a particular type of electrode has a greater influence.
It is a parameter used to measure the conductivity of electrodes. It is the resistance that the conductor has to current flowing through it. The value equals the resistance of a conductor of length 1m with a cross sectional area of 1m2 when heated to a certain temperature. This reduces consumption.
The flexural force is a parameter which characterizes performance of mechanical system in graphite material. This is also known as the flexural resistance. This means that the object will bend up to its instantaneous limit to resist risk when the external force perpendicularly crosses the axis. The MPa unit represents capacity. The network is less likely to be damaged by electrodes or joints with high strength.
The modulus of elastic is an important mechanical property. It is an index that measures the material’s ability to deform elastically. It also refers the stress-strain relationship within the elastic deformation area. The greater modulus, and therefore the greater stress, is required to cause elastic deformation. Simply put, the greater modulus, and thus the smaller elastic modulus, of flexible materials.
The thermal coefficient of graphite used as an electrode can be a critical parameter for thermal performance. The higher the value of the coefficient, the better the thermal stability. The greater the resistance to oxidation, the better the performance, and the lower the fracture and consumption.
Ash can refer to solids other than carbon graphite. Graphite’s ash content is directly affected the ash contents of the raw material used. The ash level of petroleum coke and needle coke are low. As a result, the ash of graphite circulating through the electrodes is usually less than 0.5%. Ash levels within 1% have no impact on steelmaking. Obviously, the impurity in the ash reduces the performance of anti-oxidation systems of the working electrode, etc.
(aka. Technology Co. Ltd., a trusted global chemical supplier and manufacturer with more than 12 years of experience, is a leader in the production of super-high-quality nanomaterials. The graphite produced by our company is high-purity, with fine particles and low impurity levels. If you require a lower grade, please do not hesitate to contact us.