Ferrochrome, kanaferrochromium(FeCr) imhando yeferroalloy, kureva, alloy yechromium nesimbi, kazhinji ine 50 kusvika 70% chromium nehuremu.

Ferrochrome inogadzirwa nemagetsi arc carbothermic kuderedza chromite.Zvizhinji zvekubuda kwepasi rose zvinogadzirwa muSouth Africa, Kazakhstan neIndia, izvo zvine zviwanikwa zvemukati zvechromite.Kuwedzera kwemari kuri kuuya kubva kuRussia neChina.Kugadzirwa kwesimbi, kunyanya iyo yesimbi isina tsvina ine chromium ye10 kusvika 20%, ndiyo mutengi mukuru uye inonyanya kushandiswa kweferrochrome.

Usage

Inopfuura 80% yenyikaferrochromeinoshandiswa mukugadzira simbi isina tsvina.Muna 2006, 28 Mt yesimbi isina tsvina yakagadzirwa.Simbi isina tsvina inotsamira pachromium pakuonekwa kwayo uye kuramba kukoromoka.Avhareji ye chrome yezvinhu musimbi isina tsvina ndeye approx.18%.Inoshandiswawo kuwedzera chromium kune kabhoni simbi.FeCr yekuSouth Africa, inozivikanwa se "charge chrome" uye yakagadzirwa kubva kuCr ine ore ine yakaderera kabhoni yemukati, inonyanya kushandiswa mukugadzirwa kwesimbi isina tsvina.Zvikasadaro, yakakwira kabhoni FeCr inogadzirwa kubva mugiredhi repamusoro-giredhi ore inowanikwa muKazakhstan (pakati pedzimwe nzvimbo) inonyanya kushandiswa mumashandisirwo ehunyanzvi akadai semasimbi einjiniya apo chiyero cheCr/Fe chakakwira uye mazinga mashoma ezvimwe zvinhu (sarufa, phosphorus, titanium nezvimwewo). .) akakosha uye kugadzirwa kwesimbi dzakapedzwa kunoitika mumavira madiki emagetsi kana zvichienzaniswa nehombe huru inoputika.

Kugadzirwa

Kugadzirwa kweFerrochrome kunonyanya kuderedzwa kwecarbothermic kunoitika pakupisa kwakanyanya.Chromium ore (an oxide yeCr uye Fe) inoderedzwa nemarasha uye coke kuumba iron-chromium alloy.Kupisa kwekuita uku kunogona kubva kune akati wandei, asi kazhinji kubva kune yemagetsi arc inoumbwa pakati pematipi emagetsi muzasi mechoto nechoto chevira.Iyi arc inogadzira tembiricha inosvika 2,800 °C (5,070 °F).Mukunyungudutswa, magetsi akawanda anopedzwa, zvichiita kuti kugadzirwa kudhure zvikuru munyika umo mari yemagetsi yakakwira.

Kubata zvinhu kubva muchoto kunoitika nguva nenguva.Kana ferrochrome yakanyungudutswa yakakwana yaungana muchoto chechoto, gomba repombi rinovhurwa uye rukova rwesimbi yakanyungudutswa uye slag inoyerera ichidzika nemudhishi mukutonhora kana kuti ladle.Ferrochrome inoomesa mumakasheni makuru ayo anopwanyika kutengeswa kana kuwedzererwa.

Ferrochrome inowanzo kurongedzerwa nehuwandu hwekabhoni uye chrome iyo ine.Ruzhinji rweFeCr inogadzirwa "charge chrome" kubva kuSouth Africa, nekabhoni yakakwira ichive chikamu chechipiri chikuru chinoteverwa nezvikamu zvidiki zveyakaderera kabhoni uye yepakati kabhoni.