Stainless steel smelting raw materials

The main raw materials, scrap steel EAF have to return to the steel, ferroalloy, slagging materials, oxidizers, and carburizing agent.
1) scrap iron and steel: iron and steel scrap is the main metal electric steelmaking materials. Scrap iron and steel used in the electric furnace has the following requirements:1. Calls less rust, rust and moisture containing oxide, the heat decomposition process, increasing the oxygen content in steel. Another component of the liquid steel is not easy to control;2. scrap steel and oil should have sediment, sediment increases finished steel components of silica and aluminum oxide, oil, increase the hydrogen content in the steel;3. The clip should have a non-ferrous metal scrap steel. Non-ferrous metals will affect the mechanical properties of steel and reduce the life of the furnace.The high levels of non-metallic impurities should not, otherwise it will prolong the melting time and reduce the quality of finished steel.5. scrap iron levels can be suitable, excessive scrap refractory comparison, too small scrap charge is easily oxidized and extended time.
2) Return of steel:
    Weaving Wire Returns steel refers to steel-making plant because of component failure or other reasons, but I scrapped ingots and casting, underwrite, and rolling workshop cutting head, tail and rolling cut waste and so on.
3) Ferroalloys:
   Ferroalloy furnace used in relatively high demand:1. The high content of alloying elements, reduce heat consumption during melting. This high-alloy steel smelting time is very important.2. Fragmentation ferroalloy suitability, fragmentation of the General Assembly to extend the melting time too, the block is too small it is easy to float on top, increasing the burning loss, reduced recovery of alloying elements.
Annealing Steel Wire 
 3. The alloy should not contain slag and other non-metallic inclusions, the content of sulfur, phosphorus, and gas is lower.
4) slag material and oxidant:
    Alkaline furnace slag material used mainly lime, fluorite and clay blocks, etc.; oxidant iron ore, iron oxide and oxygen. For the slag material, requires the use of low-temperature dry before removing moisture.
5) recarburizer:
    Materials used in the smelting of liquid steel by carbon called carbon agent. Common electrode blocks coke and pig iron toner.