We all must know steel. We use it inside your everyday living. But ever wondered how you can~the way to~tips on how to~the best way to~ways to produce it? Along with what does it decide to try produce it? This is the steel is made inside a big factory and it 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 would be the two major approaches for producing iron and steel products. Scrap melting could be the major process utilizing Electric Arc Furnaces. Recently, industry competition is becoming increasingly intense, elevating the need for a much more efficient melting process. Capacities of the transformers are getting larger and electric furnaces are increasing larger worldwide. In this manufacturing environment, graphite materials that have durability for larger-power operation are needed a lot more to the use as Graphite Electrode (GE).
GE are manufactured from carbon. Carbon is really a nonmetal element having an atomic variety of 6 and the atomic symbol “C”. Carbon may be the base of organic chemistry, closely in connection with organic matter and life activity. Manufacturing excellent graphite electrodes requires quality materials which are strictly selected.
Graphite carries a higher heat transfer rating, resistance to higher temperatures, and possesses more strength against thermal shock than many other materials. Moreover, it excels in machinability to satisfy the requirements for a broader range of dimensions. Thus, graphite may be the optimum material for scrap-melting electrodes.
GE are typically consumed at high temperatures due to reaction with oxygen being CO, CO2. The oxidation of electrodes starts at 500oC and accelerates its speed at 800oC (within the furnace). Usage of graphite electrodes by sublimation occurs at 3400o. The velocity of sublimation is proportional for the increase of current density.
Meanwhile, usage of quality GE leads to contributions to saving energy and environmental conservation. Electric arc furnaces, with the main purpose of recycling steel scraps, boost reuse of steel products.
Production organization of graphite electrodes could be divided as 10 stages the following:
Raw material transporting
Kneading
Extruding
Baking
Pitch Impregnation
Re-Baking
Graphitization
Machining
Inspection
Shipment
The conventional sizes for graphite electrodes are from diameter 10″ (inch) to 30″(inch) and from period of 60″(inch) to 110″(inch). The weights are starting from 123 Kgs (10″ x 60″) to 2060 Kgs (30″ x 110″).
More details about Graphite electrode explore this useful web portal