Dephosphorization refers to reducing A285 Grade A chemical reaction of phosphorus content in liquid steel. Phosphorus is one harmful impurity of A285 steel. A285 Grade A steel plate, when used under the room temperature or lower temperature, easy to brittle fracture, known as "cold reduction". A285 Grade A steel plate in the higher carbon catalog, phosphorus is caused by the more serious the brittleness. No more than 0.045% phosphorus content stipulated in the ordinary steel, high-quality steel requires less phosphorus.
Iron dephosphorization problems in the iron and steel production, has a special significance in the history. The steel mass industrial production began in 1856 Bessemer (H.B essemer)，invented by acid Bessemer process. But the Bessemer converter steelmaking can not process dephosphorization; The low phosphorus iron ore and rarely, seriously hindered the development of steel production. 1879 Thomas (S.T homas) invented can handle high phosphorus hot alkaline converter steelmaking process, dephosphorization principle of alkaline slag is then extended to open hearth steelmaking, make a lot of phosphorus ore can be used in the production of iron and steel, for the development of modern iron and steel industry has made a significant contribution.
Shanghai katalor have a first-class equipment, can produce high quality of dephosphorization A285 Grade A steel plate, if you need A285 Grade A steel plate, welcome to consult.
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