Points It’s Important To Be Familiar With Graphite Electrode And The Way Is It Linked To The Steel Making Method?

Many of us need to know steel. It’s used by us inside your everyday living. But ever thought about the way to produce it? And what can it choose to use produce it? Basically the steel is made in a big factory and it’s also cooked in the giant stove called furnace. And the cooking itself takes numerous ingredients within it.

The Blast Furnace and Electric Arc Furnace methods would be the two major approaches for producing iron and steel products. Scrap melting will be the major process utilizing Electric Arc Furnaces. Recently, industry competition is now increasingly intense, elevating the requirement of a much more efficient melting process. Capacities with the transformers increasingly becoming larger and electric furnaces are increasing larger worldwide. On this manufacturing environment, graphite materials which have durability for larger-power operation are essential a lot more to the use as Graphite Electrode (GE).

GE are made of carbon. Carbon is a nonmetal element with the atomic quantity of 6 along with the atomic symbol “C”. Carbon will be the base of organic chemistry, closely in connection with organic matter and life activity. Manufacturing excellent graphite electrodes requires quality materials which might be strictly selected.

Graphite carries a higher heat transfer rating, potential to deal with higher temperatures, and it has more strength against thermal shock than other materials. Moreover, it excels in machinability in order to meet the needs for the broader array of dimensions. Thus, graphite may be the optimum material for scrap-melting electrodes.

GE are easily consumed at high temperatures because of the reaction with oxygen to get CO, CO2. The oxidation of electrodes starts at 500oC and accelerates its speed at 800oC (in the furnace). Consumption of graphite electrodes by sublimation occurs at 3400o. The pace of sublimation is proportional towards the increase of current density.

Meanwhile, using quality GE results in contributions to saving energy and environmental conservation. Electric arc furnaces, with all the main aim of recycling steel scraps, promote reuse of steel products.

Production organization of graphite electrodes may be divided as 10 stages as follows:

Raw material transporting
Kneading
Extruding
Baking
Pitch Impregnation
Re-Baking
Graphitization
Machining
Inspection
Shipment
The standard sizes for graphite electrodes are from diameter 10″ (inch) to 30″(inch) and from length of 60″(inch) to 110″(inch). The weights are including 123 Kgs (10″ x 60″) to 2060 Kgs (30″ x 110″).

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