High-purity graphite refers to graphite with a carbon content of more than 99.99% and a graphitization degree greater than 90%. High-purity graphite has the advantages of high purity, high strength, high density, high chemical stability, high temperature resistance, dense and uniform structure, high conductivity, good wear resistance, self-lubrication, and easy processing. It is widely used […]
The grade of graphite powder refers to the particle size of graphite powder, usually expressed in mesh numbers, and the unit is um (micrometer). Graphite powder can be divided into different specifications according to the mesh numbers, some of which are as follows: 100 mesh: the coarsest particle size, can be used for casting molten
Electrical resistivity of graphite electrodes is a physical indicator of their conductivity, influenced by the manufacturing process. National standards specify qualitative values for the electrical resistivity of graphite electrodes of different specifications and types. Generally, when a steel plant selects electrodes of a certain specification, it must choose those within the electrical resistivity range specified
When connecting graphite electrodes, follow these steps to ensure a secure and clean connection: 1.Clean the Electrode and Socket: Use compressed air to blow out the electrode hole, the electrode end face, and the socket to remove any dust and foreign matter. It is essential to keep the connection points clean and flat. 2.Initial Connection:
The main measures to reduce graphite electrode oxidation consumption include: 1.Reducing the oxidation consumption around the electrode by enhancing the sealing of the furnace, minimizing air infiltration into the furnace, minimizing the exposure time of the red-hot electrode outside the furnace, and standardizing oxygen blowing operations. 2.For smelting furnaces, if conditions permit, using spray cooling technology
By taking the following measures during the steelmaking process, electrode breakage and disconnection can be effectively avoided: 1.Correct Phase Sequence: Ensure the electrode phase sequence is correct, which should be in a counterclockwise direction. 2.Uniform Distribution of Scrap: Distribute scrap steel evenly in the furnace, placing large pieces of scrap material at the bottom. 3.Avoid
An electric arc furnace (EAF) is a furnace that heats material by means of an electric arc. Industrial arc furnaces range in size from small units of approximately one-tonne capacity (used in foundries for producing cast iron products) up to about 400-tonne units used for secondary steelmaking. Arc furnaces used in research laboratories and by
Graphitization is a process of transforming a carbonaceous material, such as carbon electrode, carbon block into graphite electrode,graphite block like Graphitized Cathode Carbon Block. Process The graphitization process involves a restructuring of the molecular structure of the carbon material. In the initial state, these materials can have an amorphous structure or a crystalline structure different from graphite. Graphitization generally occurs
