Ferro hlau nplaum

 Ferro hlau nplaum, nyob rau hauv ib tug dav dav, hais txog ib yam khoom uas ntxiv rau molten hlau raws li ib tug deoxidizer, elemental additive, thiab lwm yam thaum lub sij hawm steelmaking muab steel tej yam ntxwv los yog ua tau raws li tej yam yuav tsum tau. Ib qho nruab nrab alloy tsim los ntawm hlau thiab ib lossis ob peb lub ntsiab lus, feem ntau yog siv hauv steel smelting. Hauv kev lag luam steel, txhua qhov nruab nrab alloys siv hauv steelmaking, txawm tias muaj hlau los yog tsis (xws li silicon calcium alloys), feem ntau hu ua "ferroalloys". Kev lig kev cai, qee yam khoom siv hlau ntshiab thiab oxide additives kuj suav nrog.

Lawv feem ntau raug cais raws li cov hauv qab no:
(1) Raws li cov ntsiab lus tseem ceeb hauv cov hlau alloys, feem ntau yog silicon, manganese, chromium, vanadium, titanium, tungsten, molybdenum thiab lwm yam hlau alloys.
(2) Raws li kev faib tawm ntawm cov ntsiab lus carbon hauv ferroalloys, muaj cov pa roj carbon siab, nruab nrab carbon, qis carbon, micro carbon, ultra-micro carbon thiab lwm yam.
(3) Ntau cov hlau alloys uas muaj ob los yog ntau dua alloying ntsiab. Lub ntsiab ntau yam yog silicon-aluminium alloys, silicon-calcium alloys, manganese-silicon-aluminium alloys, silicon-calcium aluminium alloys, silicon-barium-calcium alloys, thiab lwm yam.
(4) Muab faib los ntawm txoj kev tsim khoom: blast furnace ferroalloys, hluav taws xob rauv ferroalloys, sab nraum lub cub tawg ferroalloys (cov txheej txheem hlau thermal) ferroalloys, lub tshuab nqus tsev-lub xeev txo ferroalloys, electrolytic ferroalloys, ntxiv rau cov ferroalloys tshwj xeeb xws li oxides briquettes.

1. Deoxidizer. Thaum lub sij hawm steelmaking txheej txheem, oxygen raug tshem tawm ntawm cov hlau molten, thiab ib co ferroalloys kuj tshem tawm 2. lwm impurities nyob rau hauv cov hlau xws li sulfur, nitrogen, thiab lwm yam.
3. Alloy additives. Raws li cov kev cai steel muaj pes tsawg leeg, cov ntsiab lus alloying ntxiv rau cov hlau los txhim kho cov khoom ntawm cov hlau.
4. Cov tshuaj tsis haum. Ntxiv rau molten hlau ua ntej casting los txhim kho cov qauv siv lead ua ntawm cov casting.
5. Tus neeg sawv cev txo qis, txo tus neeg sawv cev rau kev tsim lwm yam ferrous alloys thiab non-ferrous hlau los ntawm hlau thermal txo txoj kev; alloy additives rau non-ferrous alloys; kuj siv tau me me hauv kev lag luam tshuaj thiab lwm yam lag luam.
6. Hlau, tag nrho cov hlau yog ib hom hlau alloy, uas kuj ua rau hlau alloy siv dav thiab loj tshaj plaws alloy.