Keeb kwm luv luv ntawm Ferrochrome

Xyoo 1821, Berthier (P. Berthier) tau ua kom sov ib qho sib xyaw ntawm charcoal, chromium oxide thiab hlau oxide nyob rau hauv lub crucible los tsim ferrochromium. Txoj kev no tau siv mus txog rau xyoo 1857 thaum ECFremy siv Tasmania hlau-chromium ore los smelt hauv lub cub tawg kom tau Tasmanian npua hlau uas muaj 7% mus rau 8 feem pua ​​Cr. Nyob nruab nrab ntawm xyoo 1870 thiab 1880, ferrochromium tsim los ntawm cov tshuab hluav taws xob muaj 30 feem pua ​​​​mus rau 40 feem pua ​​​​Cr thiab 10 feem pua ​​​​mus rau 20 feem pua ​​​​CH Moissan tau ua haujlwm ntau ntawm cov hluav taws xob hluav taws xob smelting ntawm ferroalloys, thiab xyoo 1893 tau luam tawm ib daim ntawv tshaj tawm txog kev tsim cov pa roj carbon ntau ferroch. muaj 67 feem pua ​​​​rau 71 feem pua ​​​​Cr thiab 4 feem pua ​​​​rau 6 feem pua ​​​​C los ntawm kev txo cov chrome ore hauv lub cub hluav taws xob. Hloov moj tej tawg furnaces nrog hluav taws xob rauv rau smelting siab carbon ferrochromium yog ib tug loj ua ntej. Xyoo 1886, EGOdelstjerna (EGOdelstjerna) tau piav qhia txog kev siv lub tshuab hluav taws xob hauv Sweden los tsim cov roj carbon ferrochromium uas muaj 70 feem pua ​​​​Cr.

Los ntawm 1906 txog 1940, FM Becket thiab nws cov neeg koom tes tau ua cov txheej txheem ntawm kev tsim cov pa roj carbon tsawg ferrochromium los ntawm silicon-txo chromium ore. Test thiab ntau lawm nyob rau hauv 500kW ib-theem ob-electrode hluav taws xob rauv (lub qhov cub tso zis 400kg) mus rau 12000kW peb-theem hluav taws xob rauv (lub qhov cub tso zis 10t) kom tau raws li qhov xav tau ntawm stainless hlau ntau lawm. Nyob ib ncig ntawm xyoo 1920, Trollhetan Ferroalloy Cog hauv Sweden tau tsim cov txheej txheem peb kauj ruam los tsim cov pa roj carbon ferrochrome qis. Ntawd yog, txoj kev siv hluav taws xob silicon cua sov, tseem hu ua Swedish txoj kev. Xyoo 1939, R. Perrin tau txais daim ntawv pov thawj rau kev tsim cov pa roj carbon tsawg ferrochromium los ntawm kev ua kua silicon ferrochromium alloy nrog chrome ore-lime yaj. Feem ntau hu ua Pollen method, tseem hu ua txoj kev sib pauv cua sov. Tom qab kev txhim kho tas mus li, txoj kev no tau dhau los ua txoj hauv kev tseem ceeb rau kev tsim cov pa roj carbon ferrochromium tsawg. Xyoo 1949, Erasmus (H.Erasmus) tau txais daim ntawv pov thawj rau kev tsim cov pa roj carbon tsawg ferrochromium nrog C 0.01 feem pua ​​​​los ntawm lub tshuab nqus tsev lub xeev decarburization txoj kev. Tsim los ntawm lub npe Sim-plex Ferrochrome ntawm Union Carbide's Ma-rietta cog