hp graphite electodes

Use and performance of hp graphite electodes

hp graphite electodes is a kind of high temperature resistant graphite conductive material. Do you know the purpose and performance of hp graphite electodes?

Classification of hp graphite electodes: ordinary power hp graphite electodes (RP); high power hp graphite electodes (HP); semi-ultra-high power hp graphite electodes (SHP); ultra-high power hp graphite electodes (UHP).

(1) Electric arc furnace

hp graphite electodes material is mainly used for electric furnace steelmaking. Electric furnace steelmaking uses researched hp graphite electodes to introduce working current into the furnace. The strong current at the lower end of the electrode can affect the arc discharge through these gas environments, and use the heat generated by the arc for smelting. The size of the capacitor is close to the connection between the electrodes of the electrode connector, and it is equipped with hp graphite electodes of different diameters, which can be used continuously. The amount of graphite used as a steel-making electrode material accounts for 70-80% of the total amount of hp graphite electodes in my country.

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(2) Used in submerged arc furnace

Mainly used in the production of ferroalloys, pure silicon, yellow phosphorus, calcium carbide, matte, etc. Its characteristic is that the lower part of the conductive electrode is buried in electric charge. Therefore, in addition to the heat generated by the arc between the plate and the charge, the resistance of the charge when the current passes through the charge also generates heat.

(3) For resistance furnace

In the production process, the graphitization furnace of graphite material products, the furnace and production of melting technical glass, and the electric furnace of silicon carbide are all resistance furnaces. The material management in the furnace is not only a thermal resistance, but also a heating object.

(4) A large number of hp graphite electodes blanks are also used to process various special products such as crucibles, graphite boat plates, hot die casting molds, and vacuum electric furnace heating bodies.

It should also be noted that in three high-temperature composite materials such as hp graphite electodes, graphite molds, and graphite crucibles, graphite is easy to oxidize and burn at high temperatures, so that the carbon layer on the surface of the plastic material can increase the living porosity and structural pores of the material Rate.