Silicon hlau hmoovyog dav siv nyob rau hauv metallurgical thiab industrial daim ntaub ntawv uas tswj silicon input, reactivity, los yog blending cwj pwm yuav tsum tau. Cov neeg yuav khoom feem ntau nug cov lus nug yooj yooj yim ua ntej: "Dab tsi yog qhov melting point?" Nws yog ib lo lus nug zoo, tab sis cov lus teb tseem ceeb tshaj plaws xav tau cov ntsiab lus. Lub melting point ntawm lub caij yog ib yam, thaum tus cwj pwm ntawm silicon hlau hmoov nyob rau hauv tiag tiag zus tau tej cov yuav cuam tshuam los ntawm particle loj tis, nto oxidation, impurities, thiab cua sov cua.
Dab tsi yog silicon hlau hmoov?
Silicon hlau hmoov yog ib hom hmoov ntawm cov khoom siv silicon uas ua los ntawm cov khoom siv silicon hlau. Hauv kev xyaum, nws yog muab los ua silicon hmoov, Si hmoov, los yog metallurgical silicon hmoov rau cov txheej txheem uas xav tau kev khiav dej num, ceev cov tshuaj tiv thaiv thaj tsam, los yog sib tov yooj yim dua piv nrog cov pob. Cov hmoov feem ntau yog siv los ua cov khoom siv ntxiv lossis cov khoom siv raw uas tswj kev noj tshuaj.
Dab tsi cov neeg yuav khoom yuav tsum nco ntsoov yog tias "hmoov" piav qhia txog daim ntawv, tsis yog ib qho tshwj xeeb. Ob qhov ntau tuaj yeem raug hu ua silicon hlau hmoov thiab tseem coj txawv txawv yog tias lawv cov mesh ntau, cov ntsiab lus nplua, qib oxidation, lossis cov qauv impurity txawv.
Cov ntaub ntawv dab tsi uas silicon hlau tuaj rau hauv, thiab vim li cas cov hmoov nplej tseem ceeb?
Nyob rau hauv cov saw hlau, silicon hlau feem ntau pauv nyob rau hauv ob peb daim ntawv lub cev:
- Lumps: Cov khoom loj dua siv rau ntau qhov sib ntxiv thiab cov khoom siv hluav taws xob.
- Granules: me me, cov khoom sib xws siv thaum xav tau kev pub noj ntau dua.
- Hmoov: cov khoom zoo siv rau kev sib xyaw, tshuaj tiv thaiv- raws li cov txheej txheem, lossis qhov chaw ntawm qhov chaw tseem ceeb.
Hmoov zoo dua yog tias koj xav tau kev sib cuag sai dua, sib xyaw ua ke ntau dua, lossis kev pub noj zoo ib yam los ntawm kev siv tshuab. Kev lag luam tawm yog tias cov khoom me me muaj thaj tsam siab dua, yog li lawv muaj kev nkag siab ntau dua rau oxidation thiab ya raws. Qhov rhiab heev tuaj yeem cuam tshuam li cas cov khoom coj los ntawm qhov kub siab, txawm tias lub ntsiab lus melting tseem zoo ib yam.
Silicon hlau hmoov ua li cas?
Feem ntau silicon hlau hmoov pib ua silicon hlau lumps. Cov txheej txheem ntau lawm yog mechanical loj txo thiab kev faib tawm:
- Kev xaiv raw khoom
Cov neeg tsim khoom pib nrog qib qib silicon hlau raws li qib siab impurity thiab siv kawg. Piv txwv li, qee tus neeg yuav khoom xaiv tus qauv kev lag luam qib xws li 553, thaum lwm tus hais txog purity siab dua xws li Si Ntau dua lossis sib npaug li 99%.
- Crushing thiab milling
Cov lumps yog crushed rau me me fragments thiab ces milled mus cuag lub hom phiaj particle loj. Txoj kev milling nyob ntawm qhov xav tau mesh thiab kev kam rau kev nplua. Qee daim ntawv thov xav tau ib pawg dav xws li 16-200 mesh, thaum lwm tus xav tau kev tswj nruj dua.
- Kev tshuaj ntsuam thiab kev faib tawm
Tom qab milling, cov khoom raug tshuaj xyuas kom cais cov khoom seem. Cov kauj ruam no yog qhov ua tau zoo "tus kheej" ntawm cov hmoov yog tsim, vim tias qhov sib faib ntawm kev nplua thiab kev faib tawm hauv ib qho mesh tuaj yeem cuam tshuam rau kev ntws, plua plav, thiab kev ua haujlwm zoo ib yam.
- De- kev tswj cov plua plav thiab tuav
Kev tsim cov hmoov zoo muaj xws li kev tswj kom tsis txhob muaj plua plav ntau dhau thiab kev sib kis. Txij li cov hmoov tuaj yeem khaws cov dej noo thiab oxidize yooj yim dua li cov pob, ua tib zoo tuav, khaws cia, thiab ntim khoom yog ib feem ntawm qhov zoo sib xws, tsis yog kev thauj mus los xwb.
- Ntim
Hmoov yog feem ntau ntim los tiv thaiv nws los ntawm ya raws thiab khaws cia batch traceability. Cov ntawv sau meej meej thiab kev txheeb xyuas batch yog qhov tseem ceeb rau cov neeg yuav khoom uas xav tau kev rov ua dua ntawm kev xa khoom.
Dab tsi yog qhov melting point ntawm silicon hlau hmoov?
Elemental silicon muaj qhov melting point ntawm kwv yees li1414℃(2577℃F). Silicon hlau hmoov sib koom tib lub ntsiab lus melting vim nws tseem yog silicon. Txawm li cas los xij, daim ntawv hmoov tuaj yeem coj txawv li qhov kub thiab txias rau ntau yam laj thawj:
- Deg oxidation: cov khoom zoo tuaj yeem nqa cov txheej silicon oxide nyias uas tuaj yeem cuam tshuam rau ntub dej thiab pom kev muag muag.
- Sintering ua ntej melting: hmoov tuaj yeem pib sinter (particles bonds ua ke) ntawm qhov kub thiab txias hauv qab lub melting point, tshwj xeeb tshaj yog nyob rau hauv lub siab los yog nyob rau hauv tej huab cua.
- Cov teebmeem impurity: qib kev lag luam tuaj yeem muaj me me ntawm lwm cov ntsiab lus uas tuaj yeem cuam tshuam me ntsis rau tus cwj pwm thermal ntawm thaj tsam thaj tsam.
- Atmosphere thiab txheej txheem tej yam kev mob: oxygen muaj, noo noo, thiab lub cub tawg muaj pes tsawg leeg tuaj yeem ua rau muaj kev cuam tshuam lossis kev hloov ntawm qhov chaw ua ntej cov tub ntxhais silicon mus txog nws qhov melting point.
Yog li, yog tias koj cov txheej txheem ua haujlwm ze ntawm qhov kub siab, cov lus nug siv tau feem ntau tsis yog "Puas yog nws yaj ntawm 1414 degree?" tab sis kuj "Nws puas yuav oxidize, ncuav mog qab zib, los yog sinter ua ntej nws melts, thiab yuav ua li cas cuam tshuam rau noj thiab yield?"
Yuav ua li cas cov neeg yuav khoom txhais cov ntsiab lus melting hauv kev txiav txim siab yuav khoom?
Yog tias koj siv silicon hlau hmoov nyob rau hauv siab - txheej txheem kub, ua raws cov lus qhia rau txoj kev koj siv nws:
- Paub meej tias mesh ntau thiab raug nplua nyiaj txaus yog tias muaj dej txaus thiab plua plav poob teeb meem.
- Sib piv purity qib rau koj daim ntawv thov es tsis xav tias siab purity yog ib txwm tsim nyog.
- Xav txog kev ntim khoom thiab kev qhuab qhia yog tias cov hmoov yuav khaws cia rau lub sijhawm ntev lossis xa mus los ntawm cov chaw ntub dej.
- Thov cov ntaub ntawv batch zoo ib yam thaum rov ua dua tseem ceeb.
Rau ntau buyers, lub melting point yog pib siv. Cov txiaj ntsig kev ua haujlwm yog nyob ntawm qhov loj me me, kev tswj oxidation, thiab qhov ua tau zoo npaum li cas cov hmoov raug tsim thiab ntim.
FAQ
Q1: Dab tsi yog qhov melting point ntawm silicon hlau hmoov?
A: Txog 1414℃(2577℃F), tib yam li cov khoom siv silicon.
Q2: Puas yog silicon hlau hmoov yaj ntawm qhov kub qis dua li cov pob silicon?
A: Lub ntsiab lus melting yog tib yam, tab sis hmoov tuaj yeem sinter lossis oxidize ua ntej tag nrho melting nyob ntawm seb qhov loj me, qhov chaw, thiab cua sov cua.
Q3: Cov impurities puas tuaj yeem hloov pauv tus cwj pwm melting ntawm silicon hmoov?
A: Cov impurities feem ntau tsis hloov pauv qhov tseem ceeb ntawm qhov melting point, tab sis lawv tuaj yeem cuam tshuam rau siab -kub tus cwj pwm ntawm thaj tsam thaj tsam thiab cuam tshuam kev ua haujlwm hauv cov txheej txheem tshwj xeeb.
Q4: Vim li cas particle loj tseem ceeb ntawm qhov kub thiab txias?
A: Cov khoom me me muaj qhov chaw siab dua, ua rau lawv muaj kev cuam tshuam ntau dua thiab muaj kev cuam tshuam ntau dua rau oxidation thiab noo noo, uas tuaj yeem hloov pauv cov khoom coj li cas ua ntej nws ncav cuag tag nrho melting.
Q5: Kuv yuav tsum qhia dab tsi thaum muas silicon hlau hmoov rau siab - siv kub?
A: Purity yuav tsum tau, mesh ntau, nplua kam rau ua, ntim, thiab batch traceability, ntxiv rau cov tuav los yog cia xav tau tshwj xeeb rau koj cov txheej txheem.
Txog Peb Lub Tuam Txhab
Peb yog cov chaw tsim khoom ncaj qha nrog cov khoom lag luam ruaj khov txhua hli thiab thaj tsam ntawm thaj tsam ntawm 30,000 m². Peb cov khoom raug xa tawm mus rau 100+ lub teb chaws thiab cheeb tsam, thiab peb tau ua haujlwm rau 5, 000+ cov neeg siv khoom. Peb pab neeg muag khoom nkag siab txog kev lag luam kev lag luam thiab kev lag luam, thiab peb muab ferrosilicon, silicon hlau, thiab lwm yam khoom siv hlau.
