1. Core Classification thiab Tam sim no National Standard rau Metallurgical Qib Silicon Hlau
Thaum ntsuas qib metallurgical silicon hlau, qib tus lej ntawm daim ntawv hais lus yeej tsis txaus. Thaum cov khoom nkag mus rau hauv kev yuav khoom, tshuaj xyuas, thiab lub tshuab hluav taws xob them, cov ntsiab lus tswj tiag tiag yog tus qauv ua tiav, tshuaj lom neeg muaj pes tsawg leeg, qhov loj me, zoo li, thiab batch stability.
Tam sim no lub teb chaws tus qauv rau industrial silicon yogGB / T 2881-2023 Muaj Silicon. Cov txheej txheem no tso cov qib, tshuaj muaj pes tsawg leeg, tshuaj xyuas cov cai, ntim cov cim, thiab cov ntawv pov thawj zoo ntawm cov khoom siv silicon nyob rau hauv ib qho kev sib koom ua ke. Thaum yuav cov qib ib txwm muaj xws li 553, 441, 421, thiab 3303, tus qauv ua tiav hauv daim ntawv cog lus yuav tsum tau sau kom meej. Txwv tsis pub, ib zaug Fe, Al, los yog Ca deviates, hmoov cov ntsiab lus siab tshaj qhov ua siab ntev, los yog qhov loj me tsis ua raws li cov lus pom zoo, kev lav phib xaub yuav nyuaj.
Lub logic tom qab tus lej qib yog ncaj nraim. Piv txwv li,553 silicon hlaufeem ntau txhais tau tias Fe Tsawg dua lossis sib npaug ntawm 0.5%, Al Tsawg dua lossis sib npaug rau 0.5%, thiab Ca Less dua lossis sib npaug li 0.3%;441 silicon hlauFeem ntau txhais tau tias Fe Tsawg dua lossis sib npaug rau 0.4%, Al Tsawg dua lossis sib npaug rau 0.4%, thiab Ca Less dua lossis sib npaug li 0.1%. Peb tus lej no tsis yog cov npe lag luam. Lawv yog cov ciam teb yooj yim uas txiav txim siab seb cov khoom puas tuaj yeem khiav tsis tu ncua ntawm lub cub tawg thiab seb cov khoom kawg yuav tsim teeb meem zoo li cas.
Hauv kev lag luam tiag tiag, 553 muaj qhov ntim loj tshaj plaws thiab tus nqi siab tshaj plaws. Qib 441 yog huv dua li 553, tshwj xeeb tshaj yog cov calcium uas qis dua, ua rau nws tsim nyog rau cov nroj tsuag aluminium alloy uas yuav tsum tau ua kom zoo dua yaj huv, ntws, thiab casting zoo. Thaum lub sij hawm yuav khoom, tsis txhob nug, "Tus nqi ib metric tuj rau 553 yog dab tsi?" Nws yog ib qho tseem ceeb tshaj kom nug txog qhov tseeb Fe, Al, thiab Ca qhov tseem ceeb ntawm cov khoom tam sim no, seb cov khoom puas tau raug tshuaj xyuas, thiab seb cov hmoov puas tuaj yeem tswj tau.
2. Cov Khoom Siv Tshuaj Txhuam Hniav: Kev txwv nruj ntawm Hlau, Aluminium, thiab Calcium
| Qib | Siv Si Cov Ntsiab Lus (%) | Fe Max (%) | Al Max (%) | Ca Max (%) | Cov Ntawv Thov Kev Muag Khoom |
|---|---|---|---|---|---|
| 553 | ib 98.5 | 0.50 | 0.50 | 0.30 | General aluminium alloys, theem nrab aluminium, metallurgical them |
| 441 | ib 99.1 | 0.40 | 0.40 | 0.10 | Tuag-casting aluminium, nruab nrab-rau-siab-kawg aluminium alloys, qis-calcium charging |
| 421 | ib 99.3 | 0.40 | 0.20 | 0.10 | Silicone ntau lawm, refined aluminium alloy them |
| 3303 | ib 99.3 | 0.30 | 0.30 | 0.03 | Alloy systems nrog nruj qis -calcium xav tau |
Hlau, txhuas, thiab calcium yuav zoo li cov lej me me ntawm daim ntawv. Ntawm lub qhov cub aluminium alloy, lawv ncaj qha ua teeb meem ntawm flowability, slag noj, inclusions, grain qauv, thiab puas yuav puas.
Fe yog qhov impurity yooj yim tshaj plaws underestimated. Ib qib hlau siab dua me ntsis tseem tuaj yeem tshwm sim poob rau hauv qhov ntau ntawm daim ntawv pov thawj, tab sis tom qab aluminium -silicon alloy solidifies, lub morphology ntawm hlau- cov kabmob theem tuaj yeem ua teeb meem. Tshwj xeeb tshaj yog nyob rau hauv cov cua sov uas muaj feem ntau ntawm cov khoom rov qab, lub sij hawm luv luv refining, los yog tsis txaus cua txias npaum li cas, koob -zoo li hlau- cov kabmob theem tuaj yeem txiav los ntawm matrix. Qhov elongation ntawm extruded profiles poob sai sai, thiab nyias -cov phab ntsa ntawm cov tuag- nrum qhov chaw ua rau nkig tawg. Cov neeg ua haujlwm hauv cub tawg feem ntau tsis nyiam cov khoom siv silicon uas tsis ruaj khov Fe qhov tseem ceeb. Qhov ntawd tsis yog picky; uas yog kev paub tau los ntawm kev ua tsis tiav yav dhau los.
Lub cawv ntawm Al yog zoo li cuam tshuam rau daim ntawv qhia. Cov nroj tsuag aluminium ntxiv silicon hlau los kho Si cov ntsiab lus rau lub hom phiaj ntau. Yog tias cov ntsiab lus Al hauv silicon hlau hloov pauv tau pom, lub tshuab hluav taws xob - sab batching yuav tsum tau kho kom haum. Ib qho kev hloov kho yog tswj tau. Yog tias ob peb lub cua sov ua ke yuav tsum tau kho, qhov kev sib dhos ntau lawm yuav tsis ruaj khov. Rau cov khoom sib xws xws li A356 thiab ADC12, ib zaug qhov sib npaug ntawm Si, Fe, Mg, thiab Mn raug cuam tshuam, kev cia siab rau tom qab ua kom zoo dua los them nyiaj nce ntxiv rau tus nqi thiab kev pheej hmoo.
Ca yog qhov kev paub ntau dua -raws li qhov teeb meem. Silicon lumps nrog calcium ntau dua feem ntau tsim cov nplaum nplaum nplaum tom qab them nyiaj, thiab lub qhov cub tawg tsis tuaj yeem ntxuav tau yooj yim. Cov neeg ua haujlwm tuaj yeem hnov nws thaum lub sij hawm slag skimming. Txawm tias tom qab refining, me me inclusions yuav nyob twj ywm nyob rau hauv lub castings. Rau kev them nyiaj zoo tib yam, qhov dav Ca kam rau ua kuj tseem tuaj yeem ua tau. Rau tuag-casting aluminium, log, nyias- phab ntsa qhov chaw, los yog cov khoom rhiab rau pinholes, Ca yuav tsum tsis txhob yuav nyob ze rau sab sauv txwv.
Yog li, qhov sib txawv ntawm 553 thiab 441 tsis yog "ib qib siab dua." Qib 553 suits tus nqi- thawj daim ntawv thov nrog lub qhov rais impurity dav dua. Qib 441 raug nqi ntau dua, tab sis hauv qee cov nroj tsuag aluminium alloy, qhov ua kom huv huv kom zoo dua los ntawm cov calcium uas qis tuaj yeem cuam tshuam ncaj qha rau tus nqi sib txawv.
Rau cov neeg yuav khoom sib piv 553 thiab 441, thov daim ntawv tshaj tawm batch tshiab ua ntej lees paub tus nqi.
3. Lub cev Specifications thiab particle loj yuav tsum tau
Qhov loj me tsis yog qhov teeb meem me me rau cov hlau silicon. Cov tshuaj muaj pes tsawg leeg tuaj yeem tsim nyog, tab sis yog tias lub pob me me tsis sib xws thiab cov ntsiab lus hmoov siab, cov khoom tseem yuav nyuaj rau siv ntawm lub qhov cub.
Qhov ob feem ntau particle loj specifications rau metallurgical qib silicon hlau hauv kev lag luam yog10mm-50mmthiab10mm-100mm ntuj pob. Qhov loj ntawm 10mm-50mm yog qhov tsim nyog rau kev pub mis tsis siv neeg lossis cov nroj tsuag uas yuav tsum tau yaj sai dua. Lub pob loj yog sib xws, thiab cov tshuaj tiv thaiv rau lub cub tawg yog ruaj khov dua. 10mm-100mm tej yam ntuj tso pob zeb specification yog ntau dua thiab haum rau zoo tib yam txhuas nroj tsuag thiab bulk metallurgical them, muab hais tias kev tshuaj ntsuam yog huv si thiab ntau undersize cov khoom yog tsis tov rau hauv.
| Particle Loj | Common Industry Name | Kev siv tsim nyog | Kev soj ntsuam tsom |
|---|---|---|---|
| 10mm-50mm | Cov pob me me, cov pob tsis sib xws | Tsis siv neeg pub mis, silicon hloov ntawm aluminium alloy furnaces | Concentrated loj ntau, tsis tshua muaj hmoov cov ntsiab lus, ruaj khov melting |
| 10mm-100 hli | Ntuj lumps, standard lumps | Ordinary aluminium nroj tsuag, bulk metallurgical charging | Tsis muaj cov pob loj loj lossis cov khoom tsis zoo sib xyaw ua ke |
| 0mm-10 hli | Crushed khoom, undersize khoom | Tsawg- nqi them los yog rov ua dua | Yuav tsum tau them tus nqi sib cais thiab yuav tsum tsis txhob hla dhau raws li tus qauv lumps |
Hmoov cov ntsiab lus feem ntau yog tswj nyob rau hauv5%. Cov nqe lus no yuav tsum tau sau rau hauv daim ntawv cog lus thiab tsis tuaj yeem tso siab rau cov lus cog tseg nkaus xwb. Cov hmoov zoo ntau dua, qhov loj dua qhov chaw oxidized nto ua, thiab qhov yooj yim dua rau cov khoom nqus dej noo. Tom qab them nyiaj, hmoov zoo oxidizes ua ntej thiab ntab mus rau hauv slag ua ntej, txo cov nqi silicon zoo. Sab kev yuav khoom yuav tshwm sim kom txuag tau kaum ob lub las ib metric ton, tab sis sab smelting yuav them ntau dua hauv slag poob, kev siv hluav taws xob, thiab kho qhov cub.
Qhov loj me me tsis sib xws kuj ua rau muaj kev sib cais hauv qhov cub. Cov khoom zoo twb yaj lawm thaum cov pob loj tseem tsis tau yaj tag. Thaum lub cub tawg nplawm tsis txaus, Si qhov tseem ceeb tuaj yeem sib txawv nyob ntawm qhov ntsuas qhov ntsuas. Cov teeb meem loj tshaj plaws tsis yog cov khoom siv uas tsis tsim nyog, tab sis cov khoom uas "zoo li tsim nyog ntawm daim ntawv ntsuam xyuas tseem ua tsis tau zoo hauv kev siv." Hom batch no qeeb ntau lawm thiab feem ntau ua rau muaj kev tsis sib haum xeeb ntawm pawg neeg yuav khoom thiab cov nroj tsuag.
4. Kev Pom Zoo Zoo thiab Cov Qauv Txais Kev Lag Luam
Kev tsim nyog hlau qib silicon hlau yuav tsum saib kom huv si, qhuav, thiab pom tseeb pob- zoo li thaum pom thawj zaug. Nws yuav tsum tsis txhob tov nrog av, slag, ntoo chips, woven hnab fragments, hlau hlau, refractory khib nyiab, los yog lwm yam txawv teb chaws. Silicon lumps thiab slag pieces qee zaum muaj cov xim zoo sib xws, tshwj xeeb tshaj yog hauv cov hnab jumbo. Tsis ua tib zoo tig thiab xyuas, lawv yooj yim nco. Thaum pom cov slag ntau dhau tsuas yog tom qab them nyiaj, nws feem ntau twb lig dhau lawm.
Qhov tawg ntawm qhov chaw tseem ceeb thaum kuaj xyuas. Zoo silicon lumps, ib zaug tawg, qhia meej meej xim hlau. Cov xim feem ntau yog nyiaj - grey rau tsaus grey, thiab cov khoom siv lead ua yog qhov txawv. Yog hais tias cov pob txha tawg zoo li lub ntiaj teb, npub, lossis tsis muaj crystalline kev ntxhib los mos, nws feem ntau qhia tau tias tsis ruaj tsis khov rau cov cua sov, cov slag ntau dhau, lossis hnyav oxidation. Qhov chaw oxidation me ntsis tsis tas yuav cuam tshuam rau kev siv, tab sis thaj chaw loj ntawm oxidation dawb, yellowish paug, nplaum hmoov, los yog damp agglomeration yuav tsum tsis txhob raug lees txais ncaj qha raws li cov qauv txheej txheem.
Ntim feem ntau siv1MT lossis 1.25MT jumbo hnab. Rau cov khoom xa tawm, kev tiv thaiv noo noo yog qhov tseem ceeb tshwj xeeb. Jumbo hnab yuav tsum tsis txhob khaws cia sab nraum zoov ntev. Ua ntej lub thawv ntim khoom, lub hnab hauv qab yuav tsum tau kuaj xyuas cov dej noo, thiab lub thawv yuav tsum tau kuaj xyuas kom huv si, tsw ntxhiab, sawv dej, xeb, thiab cov hmoov seem. Thaum lub caij los nag- caij nkoj xa khoom, thauj cov duab, batch naj npawb, cov cim hnab, cov lej foob, thiab cov ntaub ntawv pov thawj thib peb ntawm tog neeg yuav tsum tau khaws cia tag nrho. Silicon hlau tsis yog cov khoom muag muag, tab sis thaum nws dhau los ua ntub dej, hmoov av, los yog kis kab mob nrog slag, tus nqi tuav ntawm qhov chaw yuav siab heev.
Kev lees txais kev lag luam yuav tsum tsom rau cov ntsiab lus: tshuaj lom neeg muaj pes tsawg leeg nyob ntawm cov txiaj ntsig kev xeem batch; particle loj nyob ntawm kev tshuaj ntsuam thiab sampling; hmoov cov ntsiab lus nyob ntawm daim ntawv cog lus kam rau ua; ntim nyob ntawm lub hnab jumbo hnyav thiab lub hnab cim; Cov ntaub ntawv zoo nyob ntawm lub tshuab hluav taws xob batch naj npawb, keeb kwm, hnub tshuaj xyuas, thiab daim ntawv pov thawj thib peb - tog. Rau B2B cov neeg yuav khoom, tus nqi ntawm cov khoom lag luam ruaj khov feem ntau tsis muaj pov thawj los ntawm thawj cov khoom xa tuaj, tab sis los ntawm seb qhov kev xa khoom thib peb thiab thib tsib tuaj yeem tswj tau tib yam kev qhia tshwj xeeb.
Tsim nyog rau cov neeg yuav khoom uas xav tau cov khoom tam sim no, thib peb -cov ntaub ntawv tshuaj xyuas tog, thiab tus nqi tuaj txog qhov chaw nres nkoj.
