Ferromanganese

Ferromanganese: hlau alloy ntawm manganese thiab hlau. Cov pawg tseem ceeb: cov pa roj carbon ntau ferromanganese (cov ntsiab lus carbon yog 7%), nruab nrab carbon ferromanganese (carbon ntsiab lus 1.0 ~ 1.5%), qis carbon ferromanganese (carbon ntsiab lus 0.5%), hlau manganese , iav hlau, silicon manganese alloy.

Hauv steelmaking, nws yog siv los ua deoxidizer thiab alloy additive, thiab yog siv cov hlau alloy tshaj plaws. Cov manganese ore siv rau smelting ferromanganese feem ntau yuav tsum muaj 30 rau 40% manganese, qhov piv ntawm manganese rau hlau yog ntau dua 7, thiab qhov piv ntawm phosphorus rau manganese tsawg dua 0.003. Ua ntej smelting, manganese carbonate ore yuav tsum tau roasted ua ntej, thiab hmoov ore yuav tsum tau sintered los ua blocks. Ores nrog cov hlau siab thiab phosphorus cov ntsiab lus feem ntau tsuas yog siv ua ke, lossis los ntawm kev xaiv txo kom tsim cov hlau tsis tshua muaj thiab tsis muaj phosphorus manganese nplua nuj slag. Coke yog siv los ua tus neeg sawv cev txo qis hauv smelting, thiab qee cov nroj tsuag kuj siv cov thee lean lossis anthracite. Cov khoom siv raw khoom feem ntau yog txiv qaub, thiab silica feem ntau ntxiv thaum smelting manganese silicon alloy.
Cov txheej txheem thoob ntiaj teb ntawm cov pa roj carbon ferromanganese yog 75 ~ 80% manganese, thiab txhawm rau hloov kho cov khoom siv raw ntawm cov qib manganese ore qis, Tuam Tshoj teev cov qib qis ntawm manganese (lub cub hluav taws xob ferromanganese muaj ntau dua 65% manganese, blast furnace ferromanganese muaj ntau tshaj 50% manganese). Smelting carbon ferromanganese tsuas yog siv lub tshuab hluav taws xob tawg ua rau yav dhau los, nrog rau kev tsim hluav taws xob hauv kev lag luam, kev siv hluav taws xob hauv hluav taws xob maj mam nce. Cov teb chaws Europe sab hnub poob thiab Tuam Tshoj tsuas yog siv lub tshuab hluav taws xob tawg, Norway, Nyiv siv lub tshuab hluav taws xob, lub Soviet Union, Australia, Brazil thiab lwm lub teb chaws kuj siv hluav taws xob furnaces nyob rau hauv tshiab ferro manganese factories.