Taw qhia
Thaum cov neeg yuav khoom tham txog ferrosilicon (FeSi), lawv feem ntau tsom rau cov tshuaj muaj pes tsawg leeg ua ntej. Tab sis hauv kev tsim khoom tiag tiag-tshwj xeeb tshaj yog steelmaking thiab foundry ua haujlwm-lub cev muaj zog thiab particle lojtuaj yeem yog qhov tseem ceeb. Cov yam ntxwv no cuam tshuam rau melting ceev, silicon rov qab, plua plav poob, thiab yuav ua li cas smoothly cov khoom haum rau hauv lub cub tawg los yog ladle txheej txheem. Hauv qab no yog cov lus nug uas cov neeg yuav khoom nug thaum lawv xav nkag siab tias "lub cev zoo" zoo li cas rau ferrosilicon thiab yuav xaiv qhov loj npaum li cas.
Kev lag luam Q&A: Dab tsi yog Cov Khoom Siv Lub Cev thiab Cov Particle Loj Rau Ferrosilicon?
Q1: Dab tsi yog cov khoom tseem ceeb ntawm ferrosilicon uas cov neeg yuav khoom yuav tsum paub?
Feem ntau cov lag luam ferrosilicon yog agrey- silver metallic alloyua nyob rau hauv hluav taws xob furnaces thiab muab raws li lumps, granules, los yog hmoov. Cov khoom ntawm lub cev cov neeg yuav khoom feem ntau mob siab txog suav nrog:
Zoo thiab huv si:yuav tsum saib nws yog xim hlau thiab tsim nyog huv si, tsis muaj av ntau dhau, xuab zeb, lossis xim txawv txawv.
Hardness thiab brittleness:ferrosilicon feem ntau yog nkig, uas yog qhov qub thiab pab nws raug crushed rau ntau qhov sib txawv.
Bulk density / packing cwj pwm:tsis yog ib txwm teev, tab sis nws cuam tshuam rau kev thauj khoom, ntim khoom, thiab kev xa khoom zoo.
Moisture condition:nws yuav tsum tau qhuav thiab tiv thaiv los ntawm ntev raug rau ya raws, tshwj xeeb tshaj yog rau qhov loj me me.
Hauv kev xyaum, qhov zoo ntawm lub cev feem ntau raug txiav txim los ntawm qhov sib xws: cov khoom puas zoo li thiab coj tus yam ntxwv ntawm kev xa khoom?
Q2: Vim li cas particle loj tseem ceeb heev hauv steelmaking thiab casting?
Particle loj tswj li cas ferrosilicon melts thiab reacts. Txawm tias muaj tib qib tshuaj (xws li FeSi75), qhov ntau thiab tsawg tuaj yeem coj txawv txawv:
Qhov loj me me yaj qeeb→ Cov tshuaj tiv thaiv ruaj khov dua, feem ntau tsis tshua muaj plua plav, rov ua kom zoo dua.
Cov me me yaj sai dua→ Cov nyhuv nrawm dua, pab tau zoo rau kev kho kom zoo, tab sis tuaj yeem ua rau cov plua plav poob lossis "cov tshuaj tiv thaiv ceev ceev."
Yog li thaum cov neeg yuav khoom xaiv qhov loj me, lawv pib xaiv lub suab sib dhos uas zoo tshaj plaws rau lawv cov txheej txheem. Yog tias qhov loj me tsis yog lawm, nws tuaj yeem ua rau tsis sib xws silicon rov qab, cov khoom siv khib nyiab, lossis tsis ruaj khov chemistry tswj.
Q3: Dab tsi yog qhov feem ntau particle loj, thiab lawv siv qhov twg?
Common coj mus muag loj muaj xws li:
10-50 hli: dav siv hauv steelmaking; txhim khu kev qha melting thiab ruaj khov rov qab.
10-100 hli: feem ntau siv rau qhov cub loj, tshwj xeeb tshaj yog thaum ntxiv ncaj qha rau hauv qhov cub.
3-10 hli / 3-8 mm: ntau dua nyob rau hauv foundries los yog qhov twg sai dua melting.
1-5 hli: nrov rau ladle ntxiv thiab refining txheej txheem uas yuav tsum tau ceev dissolution.
0-3 hli (hmoov / nplua): siv rau cov tshuaj tiv thaiv sai heev lossis cov txheej txheem tshwj xeeb, tab sis yuav tsum tau ua tib zoo tuav.
Cov neeg yuav khoom sib txawv nug txog qhov sib txawv tsis yog vim ib qho "zoo dua," tab sis vim tias lawv cov cub tawg thiab cov txheej txheem alloying txawv.
Q4: Qhov loj me me yog "zoo tshaj" yog tias kuv xav tau ntau dua silicon rov qab thiab pov tseg tsawg dua?
Rau ntau steel mills,10-50 hliyog qhov kev xaiv nyab xeeb thiab siv tau. Nws melts ntawm kev tswj ceev thiab feem ntau ua rau kom ruaj khov.
Yog tias koj siv cov nplua ntau dhau (cov khoom me me), koj tuaj yeem ntsib cov plua plav ntau dua thaum thauj thiab pub mis, tshwj xeeb tshaj yog nyob rau hauv cua lossis qhib tuav.
Yog hais tias cov khoom loj dhau rau koj lub qhov cub, melting yuav qeeb thiab tsis sib xws, uas tuaj yeem txo qhov rov qab.
Yog li qhov "zoo tshaj" qhov loj me feem ntau yog qhov sib tw rau qhov cub loj thiab ntxiv txoj kev, es tsis yog qhov tsawg tshaj plaws los yog qhov loj tshaj.
Q5: Cov neeg yuav khoom yuav tsum thov dab tsi los ntawm cov neeg muag khoom kom paub meej lub cev zoo thiab qhov sib xws?
Txhawm rau txo kev pheej hmoo, cov neeg yuav khoom feem ntau thov:
Ib qho meejqhov loj specification(piv txwv li, 10-50 mm, max nplua % yog tias xav tau)
Cov duab ntawm cov khoom lossis ua ntej - cov duab kuaj xyuas khoom xa tuaj
Cov txheej txheem kev lees paub (lub hnab jumbo, hnab me me, tiv thaiv ya raws)
COA ntxiv rau cov ntawv sau zoo (tshwj xeeb tshaj yog tias cov impurities nruj)
Yog tias koj tab tom yuav cov nplua lossis cov granules me me, nws tseem tsim nyog nug seb tus neeg muag khoom tswj cov plua plav thiab ya raws thaum ntim thiab thauj khoom.
Hais txog peb cov khoom
Peb muab ferrosilicon rau cov qib sib xws xws liFeSi75, FeSi72, thiab FeSi65, thiab peb tuaj yeem muab ntau qhov ntau thiab tsawg suav nrog10-50mm, 10-100mm, 3-8mm, 1-5mm, thiab 0-3mm. Yog tias koj qhia peb txog koj lub tshuab hluav taws xob thiab txoj kev xav tau ntxiv, peb tuaj yeem hais qhia qhov tsim nyog thiab qhia COAs thiab cov kev xaiv ntim tsis ntev los no, nrog rau cov nqi FOB tshiab los ntawm cov chaw nres nkoj loj hauv Suav teb.
