Ferrosilicon hi iron leh silicon atanga siam alloy a ni a, metallurgical industry-a key auxiliary material hman lar tak a ni.
I. Thil neih bulpui (Fundamental Properties) te
Grayish-black lumps angin a lang a, cross-section smooth tak leh metallic luster a nei a, hardness leh brittleness a lantir a ni.
Melting point 1300-1400℃vel a nei a, reducing property chak tak leh alloying effect tha tak a nei bawk.
Grade pangngai chu silicon awm zat a zirin an thliar hrang a, chu chu 75# (72%-80% Si), 80# (78%-85% Si), leh 90# (85%-92% Si) te an ni.
II. Core Value a ni
Ferrosilicon hian molten steel atanga oxygen leh sulphur bawlhhlawh te chu tha takin a paih chhuak a, chutih rualin metallic materials te chakna, a khauhna leh a chhe thei lo a ti sang a, hei vang hian steel siamna atana "industrial vitamin" tih hming a pu ta a ni.
Electric arc furnace-a high-temperature smelting hmanga silica stone leh iron concentrate (or scrap steel) ang chi raw material atanga siam a ni. A kalphung hi a puitling a, scale-ah pawh hman a ni nasa hle.
III. Ferrosilicon siam chhuahna atana hmanraw tangkai tak tak
Silicon atanga lo chhuak:Silica stone hi silicon supply tu core raw material a ni a, SiO2 content 97% aia tam emaw a tlukpui emaw a mamawh a, bawlhhlawh tlem (aluminum, calcium, magnesium, etc.) a awm bawk.
Iron Source atanga hman tur Raw Materials: 1.1.Iron ore concentrate emaw scrap steel emaw hian iron a pe a, chu chu silicon nen inzawmkhawmin alloy a siam a ni.
Reducing Agent: 1.1.Carbon material hian a bul berah chuan quartzite atanga silicon chu temperature sang takah a tihtlem thin. Combination tlangpui chu coke (fixed carbon 85 aia tam emaw a tlukpui emaw) + charcoal (reaction activity tichaktu) te hi a ni.
Fluorspar chuan: 1.1.Slag melting point tihhniam nan, slag fluidity tihchangtlun nan, leh slag paih awlsam nan flux atan tlemte (raw materials zawng zawng atanga 1%-3%) dah belh a ni.
Lime: 1.1.Slag alkalinity siamrem nan, silicon volatilization hloh tihtlem nan, leh recovery rates tihsan nan a tul angin dah belh a ni.
