Silicon Hlau 441: Thermal Conductivity, Chemistry thiab Tuam Tshoj Nqe Siv
Tso lus
Silicon hlau, tseem hu ua metallurgical qib silicon, yog tsim nyob rau hauv hluav taws xob arc rauv los ntawm kev txo quartz nrog ib tug carbon qhov chaw. Cov qib lag luam nqa cov lej luv luv uas cov lej piav qhia qhov siab tshaj plaws hlau, txhuas thiab calcium cov ntsiab lus, yog li qib 441 txhais tau tias hlau mus txog 0.4%, txhuas mus txog 0.4% thiab calcium txog 0.1%. Qib 441 zaum hauv nruab nrab ntawm kev lag luam ntau yam thiab yog ib qho ntawm cov khoom siv hnyav tshaj plaws hauv Suav teb rau aluminium alloying, silicone ntau lawm thiab raws li pub rau ntxiv refining.
Yuav Ua Li Cas Silicon Hlau Qib Code Ua Haujlwm
Cov cai yog ib daim ntawv cog lus chemistry. Cov qib purity siab dua raug nqi ntau dua vim tias lawv xav tau cov khoom siv huv huv thiab kev ua kom zoo dua qub, thiab cov nqi ntawm cov qib qhia txog tus nqi ntau dua li ib qho kev sib tw.
| Qib | Hlau max | Aluminium max | Calcium max | Hom kev siv |
|---|---|---|---|---|
| 553 | 0.5% | 0.5% | 0.3% | Aluminium alloys thiab dav deoxidation |
| 441 | 0.4% | 0.4% | 0.1% | Aluminium alloys, silicones thiab refining feedstock |
| 3303 | 0.3% | 0.3% | 0.03% | Wrought aluminium alloys thiab siv tshuaj lom neeg |
| 2202 | 0.2% | 0.2% | 0.02% | Feedstock rau qib photovoltaic refining |
| 1101 | 0.1% | 0.1% | 0.01% | High purity tshuaj thiab hluav taws xob siv |
Kev lees txais zaum kawg yuav tsum ua raws li daim ntawv pov thawj tus neeg muag khoom thiab cov qauv siv tau ntau dua li cov cai ib leeg, vim cov neeg tsim khoom hais cov qhab nia sib txawv me ntsis sab hauv.
Thermal Conductivity thiab Thermal Expansion
Silicon yog ib tug zoo conductor ntawm tshav kub rau ib tug metallurgical khoom. High purity silicon ua cua sov ntawm kwv yees li 150 W / (m K) nyob ze ntawm chav tsev kub, thiab nws cov coefficient ntawm thermal expansion yog tsawg, ntawm qhov kev txiav txim ntawm 2.6 x 10^-6 ib℃C ntawm chav tsev kub. Qhov kev sib xyaw ua ke no yog ib qho laj thawj uas silicon raug xaiv rau cov cuab yeej precision thiab cov khoom siv kho qhov muag, qhov chaw ruaj khov nyob rau hauv qhov ntsuas kub hloov pauv. Cov impurities thiab porosity nyob rau hauv metallurgical qib khoom txo cov conductivity me ntsis, yog li kev xaiv qib yog ib feem ntawm kev txiav txim siab tsim thaum thermal cwj pwm tseem ceeb.
Silicon hlau kuj qhia tau hais tias muaj txiaj ntsig zoo ntawm cov khoom siv kho tshuab thiab ua lub hauv paus ntawm cov khoom siv hluav taws xob muaj zog. Alloyed nrog txhuas thiab lwm yam hlau nws tsa lub zog thiab corrosion kuj. Nws qhov hluav taws xob loj tshaj plaws yog cov khoom siv hluav taws xob tshiab: silicon solar panels thiab photovoltaic cells hloov lub hnub ci mus rau hauv hluav taws xob, thiab cov polysilicon siv hauv cov hlwb yog ua kom zoo los ntawm qib metallurgical silicon.
Tuam Tshoj Silicon Hlau Nqe Siv rau Qib 441
Cov qib siv tau sau tseg rau lub Rau Hli 1, 2023, hauv yuan ib tonne. Ib tug khiav ceev nyob rau hauv thawj lub lag luam daim ntawv txhais tau tias tsis muaj kev hloov pauv tau tshaj tawm hnub ntawd.
| Thaj chaw | Mainstream quotation | Mainstream trading nqi |
|---|---|---|
| Tianjin chaw nres nkoj | 14200-14300 | 13900-14200 |
| Huangpu chaw nres nkoj | 14200-14300 | 14100-14200 |
| Yunnan Hoobkas | 13900-14000 | 13800-13900 |
| Sichuan Hoobkas | 14000-14200 | 13900-14000 |
Kev sib kis ntawm cov chaw tsim khoom thiab cov chaw nres nkoj qhia txog kev thauj khoom hauv av thiab tus nqi ntawm kev txav tonnage mus rau qhov chaw thau khoom. Cov lus hais los ntawm ob lub xeev tsim khoom yog ib txwm yog qhov taw qhia rau kev cog lus hauv tsev, thaum cov lus qhia chaw nres nkoj tau teeb tsa theem pib rau kev lag luam xa tawm.
Dab tsi txav Silicon Hlau Nqe
Tus nqi hluav taws xob: smelting siv ntau lub zog, yog li tariffs thiab raws caij nyoog hydropower muaj nyob rau sab qab teb sab hnub poob ua rau muaj zog viav vias.
Txo tus neeg sawv cev thiab tus nqi hluav taws xob, uas xa cov pa roj carbon thiab graphite kev lag luam txav ncaj qha rau hauv cov nqi hluav taws xob.
Aluminium alloy thiab silicone xav tau, cov khoom ntim ib txwm siv rau qib 441 thiab qib nyob sib ze.
Photovoltaic thov, vim hais tias polysilicon ntau lawm rub tonnage deb ntawm metallurgical lag luam thaum hnub ci tsim cov nqi siab.
Chaw nres nkoj stocks thiab logistics ntawm lub ntsiab loading cov ntsiab lus, uas teem sai npaum li cas Hoobkas quotes yog reflected nyob rau hauv export muab.
Muab piv rau Qib 441
Tshawb xyuas daim ntawv pov thawj chemistry rau hlau, txhuas thiab calcium, tsis yog qib code.
Muab piv rau tib lub hauv paus xa khoom, vim tias ex- ua haujlwm lub Hoobkas nqe lus thiab cov nqe lus chaw nres nkoj tsis ncaj qha sib pauv.
Paub meej tias pob loj npaum li cas, ntim thiab qib noo noo, vim tias cov khoom nplua thiab cov khoom ntub dej hloov pauv cov txiaj ntsig siv tau hauv cov neeg siv khoom siv hluav taws xob.
Paub meej tias hnub siv ntawm cov lus hais, raws li qib hlau silicon txav mus rau hauv lub lis piam.
Cov lus nug nquag
Q: Silicon hlau 441 txhais li cas?
Txoj cai hais txog qhov siab tshaj plaws impurities: hlau mus txog 0.4%, txhuas mus txog 0.4% thiab calcium mus txog 0.1%, uas tso nws ntawm qib 553 thiab siab dua purity 3303.
Q: Puas yog silicon hlau zoo thermal conductor?
Yog lawm. High purity silicon ua cua sov ntawm kwv yees li 150 W / (m K) nyob ze ntawm chav tsev kub, txawm hais tias impurities thiab porosity nyob rau hauv metallurgical qib qis dua daim duab.
Q: Vim li cas qib 441 nqi qis dua qib 3303?
Tsawg purity specifications txais ntau cov hlau, txhuas thiab calcium, yog li lawv xav tau cov khoom siv tsawg dua thiab siv sijhawm tsawg dua.
Q: Qhov twg yog Suav silicon hlau tus nqi hais?
Cov ntsiab lus siv feem ntau yog Tianjin chaw nres nkoj, Huangpu chaw nres nkoj thiab lub Hoobkas nqe lus los ntawm kev tsim cov cheeb tsam xws li Yunnan thiab Sichuan.
Q: Dab tsi yog qhov txawv ntawm cov lus hais thiab tus nqi lag luam?
Cov lus hais yog qib kev tshaj tawm los ntawm cov neeg tsim khoom thiab cov neeg lag luam, thaum tus nqi lag luam yog qib ntawm tonnage tiag tiag hloov tes.
Q: Qib 441 siv rau dab tsi?
Nws yog siv nyob rau hauv aluminium alloys, silicone manufacture thiab raws li feedstock rau refining kom siab purity silicon rau photovoltaic thiab hluav taws xob daim ntaub ntawv.
