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Graphite electrodes are used primarily in the EAF steelmaking process, to melt scrap metal. The electrodes are made from graphite as it is able to withstand high temperature. The electrode tip can reach 3,000° Fahrenheit in an electric furnace. That is half the temperature of the sun’s surface. 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 and elastic modulus, E; thermal expansion coefficient, A% and ash. Graphite electrodes are classified according to their performance and quality indicators, as well as the differences between national standards or manufacturing processes for raw materials. They can be divided into power graphite RP electrodes, high power graphite RP electrodes, and ultra-high powered graphite RP electrodes. 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.
Customers will order quality standards on the basis of their company’s corporate standards. The relative density of volume is the ratio of quality control of the graphite sample to its volume. The unit is grams per cubic centimeter. The higher the volume density the denser and stronger the electrode. This is directly related to the performance and strength 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. This value is the resistance of a conductor of length 1m with a cross sectional area of 1m2 when heated to a certain temperature. It helps reduce 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 part of mechanical properties. It is an index that measures the elastic deformation of a materials and refers the stress-strain range within the elastic deformation. The greater modulus, and therefore the greater stress, is required to cause elastic deformation. Simply put, the greater modulus, the more elastic the material.
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 fractures, consumption, and loss.
Ash can refer to solids other than carbon graphite. The graphite electrode is directly influenced by the ash level of the raw material. The ash level of petroleum coke and needle coke are low. As a result, the ash of graphite passing the electrode is usually less than 0.5%. Ash levels within 1% have no impact on steelmaking. The impurity components in the ash reduce the performance, for example, of the anti-oxidation systems of the working electrode.
(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 year’s experience in providing high-quality Nanomaterials and chemicals. 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.
Customers will order quality standards on the basis of their company’s corporate standards. The relative density of volume is the ratio of quality control of the graphite sample to its volume. The unit is grams per cubic centimeter. The higher the volume density the denser and stronger the electrode. This is directly related to the performance and strength 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. This value is the resistance of a conductor of length 1m with a cross sectional area of 1m2 when heated to a certain temperature. It helps reduce 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 part of mechanical properties. It is an index that measures the elastic deformation of a materials and refers the stress-strain range within the elastic deformation. The greater modulus, and therefore the greater stress, is required to cause elastic deformation. Simply put, the greater modulus, the more elastic the material.
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 fractures, consumption, and loss.
Ash can refer to solids other than carbon graphite. The graphite electrode is directly influenced by the ash level of the raw material. The ash level of petroleum coke and needle coke are low. As a result, the ash of graphite passing the electrode is usually less than 0.5%. Ash levels within 1% have no impact on steelmaking. The impurity components in the ash reduce the performance, for example, of the anti-oxidation systems of the working electrode.
(aka. Technology Co. Ltd., a trusted global chemical supplier & manufacturer has over 12 year’s experience in providing high-quality Nanomaterials and chemicals. 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.