Vad är användningen av grafitelektroder?

Vad är användningen av grafitelektroder?

Grafitelektroder används huvudsakligen i metallurgi, kemisk industri och andra industrier . De specifika applikationerna är följande:

1. Metallurgy: Electric furnace steelmaking is a major user of graphite electrodes. Electric furnace steel production in my country accounts for about 18% of crude steel production, and graphite electrodes for steelmaking account for 70% to 80% of the total use of graphite electrodes. Electric furnace steelmaking uses graphite electrodes to introduce current into the furnace, and uses Högtemperaturvärmekällan som genereras av bågen mellan elektrodänden och laddningen för smältning .

2. Chemical industry: Submersible thermal electric furnaces are mainly used to produce industrial silicon and yellow phosphorus. Its characteristics are that the lower part of the conductive electrode is buried in the charge, an arc is formed in the charge layer, and the heat energy generated by the resistance of the charge itself is used to heat the charge. Among them, graphite electrodes are krävs för nedsänkbara termiska elektriska ugnar med högre strömtäthet . Till exempel konsumeras cirka 100 kg grafitelektroder för varje ton kiselproducerad, och cirka 40 kg grafitelektroder konsumeras för varje ton gul fosforproducerad .}

Grafitelektrod är ett högtemperaturresistent grafitledande material . Känner du till användningen och egenskaperna hos grafitelektroder?

Grafitelektrodklassificering: Vanlig kraftgrafitelektrod (RP); Högeffekt grafitelektrod (HP); kvasi-ultra-hög kraftgrafitelektrod (SHP); Ultra-hög kraftgrafitelektrod (UHP) .

(1) Används i elektrisk båge ståltillverkningsugn

Graphite electrode materials can be mainly used for electric furnace steelmaking. Electric furnace steelmaking uses graphite electrodes to introduce working current into the furnace. The strong current at the lower end of the electrode can affect the arc discharge through the gas environment, and the heat generated by the arc is used for smelting. The size of the electric capacity is equipped with graphite electrodes with different Diametrar, som kan användas kontinuerligt, och kopplingen mellan elektroderna är mot elektrodfogen . grafit som används som elektrodmaterial för ståltillverkning står för cirka 70-80% av den totala mängden grafitelektroder i Kina .}

(2) Används i elektriska ugnar

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

(3) Används i motståndsugnar

Grafitiseringsugnen som används för grafitmaterialprodukter i produktionsprocessen, smältugnen och produktion av smältteknologglas, och den elektriska ugnen som används för kiselkarbid är alla motståndsugnar . Materialhanteringen i ugnen är både en värmemotstånd och ett uppvärmt objekt .}

(4) Ett stort antal grafitelektrodämnen används också för att bearbeta i olika deskläder, grafitbåtar, heta pressformar och vakuumugnuppvärmningselement och andra specialformade produkter .

It should also be noted that among the graphite materials in the three high-temperature composite materials including graphite electrodes, graphite molds and graphite crucibles, at high temperatures, the three graphite materials are easy to oxidize and burn, thereby the carbon layer on the surface of the plastic material increases the porosity of the life structure. Graphite electrode is an important carbon product, made of petroleum coke and asphalt coke as aggregates and coal tar as binder. It is used in arc steelmaking furnaces, submerged arc furnaces and other equipment, and has the properties of conductivity, high temperature resistance, and thermal shock resistance. The manufacturing process is strict and there are many types, which need to be selected according to actual conditions. Graphite electrodes are widely used in smelting, Kemisk industri och andra områden, med fokus på miljöskydd och resursanvändning, och är av stor betydelse för industriell utveckling .

Graphite electrode is a kind of high-temperature resistant graphite conductive material made of petroleum coke and asphalt coke as aggregates and coal tar as binder, through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, graphitization (carbonization), and machining. It is called artificial graphite electrode (referred to as graphite Elektrod) . Utrustningen som använder den som ledare för att omvandla elektrisk energi till termisk energi för att värma och förfina Arc -ugnsladdningen kallas grafitelektrodbågsugn .

Som en viktig kolprodukt spelar grafitelektrod rollen för konduktivitet och värmeöverföring i produktionen . Det är ett förbrukningsbart på smältutrustning som bågståltillverkningsugnar, nedsänkta bågugnar, elektriska ugnar och motståndsugnar .

Graphite electrodes are widely used and are mainly used in various smelting equipment such as electric arc steelmaking furnaces, ore-heat furnaces, electric furnaces and resistance furnaces. As a conductive material, graphite electrodes play a vital role in the smelting process. In electric arc steelmaking furnaces, graphite electrodes generate high-temperature arcs through conduction to melt the charge and achieve the purpose of steelmaking. In ore-heat furnaces and electric furnaces, graphite electrodes are used to conduct current and generate heat energy to heat and melt the charge. In addition, graphite electrodes are also widely used in chemical, metallurgical, mechanical, electronic and other industrial fields.

The properties of graphite electrodes mainly include conductivity, high temperature resistance, thermal shock resistance, oxidation resistance and mechanical strength. First, graphite electrodes have excellent conductivity and can effectively transmit current and generate high-temperature arcs. Secondly, graphite electrodes have extremely high high temperature resistance and can work stably for a long time in high temperature Miljöer .

In addition, graphite electrodes also have good thermal shock resistance and can withstand rapid changes in temperature in the furnace without breaking. At the same time, graphite electrodes also have antioxidant properties, which can effectively prevent oxidation. Finally, graphite electrodes have high mechanical strength and can withstand various forces in the furnace without deformation or breakage. In practical applications, the performance of graphite electrodes directly affects the working efficiency and smelting effect of smelting equipment. Therefore, when selecting graphite electrodes, it is necessary to fully consider their performance indicators and make reasonable choices based on actual usage. At the same time, during use, it is also necessary to pay attention to the care and maintenance of graphite electrodes to extend their service life and improve the use Effekt .

In short, as an important carbon product, graphite electrodes have broad application prospects in industrial fields such as smelting, chemical industry, metallurgy, machinery, and electronics. With the continuous advancement of science and technology and the rapid development of industry, the performance and application of graphite electrodes will continue to improve and perfect, making greater contributions to the development of various industries. In addition to the basic properties and uses of graphite electrodes mentioned above, there are some other knowledge points worth knowing. For example, the manufacturing process of graphite electrodes requires multiple steps such as raw material calcination, crushing and grinding, batching, kneading, molding, roasting, graphitization (carbonization), and machining. Each step requires strict control of process parameters to ensure the quality and performance of the final Produkt . Dessutom finns det många typer och specifikationer för grafitelektroder . Olika typer av grafitelektroder har olika användningsområden och egenskaper och måste väljas enligt faktiska förhållanden .}}