Tub ntxhais hlau yog ib hom ferroalloy uas muaj ntau yam additives (deoxidizers, desulfurizers, modifiers, alloys, thiab lwm yam) ntxiv rau molten steel los yog hlau yog crushed rau ib tug tej particle loj thiab ces ua rau cov khoom sib xyaw ntawm txhua qhov ntev siv txias. dov me me steel sawb, uas feem ntau muaj peb yam: gestation, ntxiv-hearth refining thiab alloying ntawm cov ntsiab lus tshwj xeeb.
Hom cored hlau muaj xws li: dicalcium hlau, ntshiab calcium hlau, calcium-silicon hlau, calcium-aluminium hlau, tsis tshua muaj-lub ntiaj teb hlau, titanium-hlau hlau, carbon hlau thiab lwm yam.
Cored hlau yog tsim rau steelmaking thiab casting. Nws tuaj yeem ua kom huv ntawm daim ntawv suav nrog, txhim kho cov castability ntawm steel, txhim kho cov kev ua tau zoo ntawm cov hlau, ua kom cov hlau tawm los, txo cov alloy noj, txo tus nqi ntawm steelmaking, thiab ua tiav cov txiaj ntsig kev lag luam.
1, cov tub ntxhais hlau ferroalloy tseem tsim nyog rau kev tswj hwm thiab tswj cov ntsiab lus ntawm cov ntsiab lus oxidizable thiab kab kawm, uas tuaj yeem txhim kho cov txiaj ntsig zoo ntawm cov hlau, txo cov nqi smelting, txo lub sij hawm smelting, thiab tswj cov muaj pes tsawg leeg.
2, Cov tub ntxhais hlau ua lub luag haujlwm hauv kev ua kom huv cov hlau thiab qee qhov hloov pauv qhov xwm txheej thiab cov duab ntawm kev suav nrog, txhim kho cov hlau zoo thiab txhim kho cov txheej txheem casting.
3, Cov tub ntxhais hlau tuaj yeem muab faib ua ob hom: sab hauv stretching thiab sab nraud tso. Cov cuab yeej siv tshuab xav tau rau kev pub hlau yog yooj yim thiab txhim khu kev qha, thiab npog thaj tsam me me. Hauv particular, sab hauv kos cov tub ntxhais hlau yog tsim nyog siv rau hauv qhov chaw nqaim.
Nrog rau qhov zoo ntawm cov tub ntxhais muaj pes tsawg leeg thiab siab filling tus nqi, cov tub ntxhais hlau tuaj yeem siv rau hauv ntau qhov kev lag luam, txo cov nqi tsim khoom thiab lub sijhawm cia hauv cov txheej txheem smelting.
