Most of us got to know steel. We employ it inside your everyday life. But ever thought about how you can produce it? And just what does it decide to try produce it? This is the steel is produced in the big factory in fact it is cooked in a giant stove called furnace. Along with the cooking itself takes numerous ingredients in it.

The Blast Furnace and Electric Arc Furnace methods are the two major techniques 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 necessity for an infinitely more efficient melting process. Capacities with the transformers increasingly becoming larger and electric furnaces are increasing larger worldwide. Within this manufacturing environment, graphite materials that have durability for larger-power operation are essential much more for that use as Graphite Electrode (GE).

GE are manufactured from carbon. Carbon is a nonmetal element having an atomic number of 6 along with the atomic symbol “C”. Carbon may be the base of organic chemistry, closely associated with organic matter and life activity. Manufacturing excellent graphite electrodes requires quality materials which can be strictly selected.

Graphite has a higher heat transfer rating, capacity higher temperatures, and contains more strength against thermal shock than other materials. Moreover, it excels in machinability to satisfy the needs to get a broader range of dimensions. Thus, graphite is the optimum material for scrap-melting electrodes.

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

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

Production organization of graphite electrodes could be divided as 10 stages the subsequent:

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

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