Many of us must know steel. We use it within your everyday activity. But ever thought about how you can~the way to~tips on how to~the best way to~ways to produce it? As well as what can it decide to use produce it? Simply the steel is made in a big factory which is cooked inside a giant stove called furnace. As well as the cooking itself takes numerous ingredients within it.
The Blast Furnace and Electric Arc Furnace methods include the two major techniques for producing iron and steel products. Scrap melting will be the major process utilizing Electric Arc Furnaces. Recently, industry competition has grown to be increasingly intense, elevating the requirement for a lot more efficient melting process. Capacities in the transformers increasingly becoming larger and electric furnaces are growing larger worldwide. Within this manufacturing environment, graphite materials which have durability for larger-power operation are needed considerably more for your use as Graphite Electrode (GE).
GE are made from carbon. Carbon can be a nonmetal element with an atomic quantity of 6 as well as 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 might be strictly selected.
Graphite includes a higher heat transfer rating, capacity higher temperatures, and possesses more strength against thermal shock than many other materials. Moreover, it excels in machinability to satisfy certain requirements for a broader array of dimensions. Thus, graphite may be the optimum material for scrap-melting electrodes.
GE can be consumed at high temperatures as a result of reaction with oxygen to get CO, CO2. The oxidation of electrodes starts at 500oC and accelerates its speed at 800oC (inside furnace). Consumption of graphite electrodes by sublimation occurs at 3400o. The pace of sublimation is proportional towards the increase of current density.
Meanwhile, usage of quality GE results in contributions to saving energy and environmental conservation. Electric arc furnaces, with all the main objective of recycling steel scraps, promote reuse of steel products.
Production organization of graphite electrodes can be divided as 10 stages the next:
Raw material transporting
Kneading
Extruding
Baking
Pitch Impregnation
Re-Baking
Graphitization
Machining
Inspection
Shipment
The standard sizes for graphite electrodes originate 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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