Steel Making: types of Furnaces

STEEL MAKING 

Two important furnaces used in production of steel are:

Basic oxygen Furnace

pure oxygen is blown at a high velocity through the lance thus causing combustion. carbon dissolved in the  pig iron and other impurities such as silicon, manganese and phosphorous are oxidized

Electric arc Furnace

 It has a removable roof for charging from above. scrap iron and steel selected for their composition with alloying elements and limestone(flux) are charged into the furnace and heated by electric arc that flow between two large electrodes and charge metal.

advantage of electric arc furnace: there is production of pure steel at shortest time of 2 hours

**************BASIC OXYGEN FURNACE*************

*************************ELECTRIC ARC FURNACE*****************************

CASTING OF STEEL

Molten steel is allowed to solidify in various form with the help of different casting methods with include:

• Continuous casting - Molten steel is poured from a ladle into a tundish( temporary container) which dispenses the metal to one or continuous casting molds 
• casting into ingots - solidification of molten steel in large discrete casting up to  1 ton to 300 tons

**************CONTINEOUS CASTING REAL VIDEO**************

*******************Classification of Steel*******************

ASSIGNMENT

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By Matambo DTAL🌍🌍🌍