Silicon hlau xov xwm

1. siv.

  Silicon hlau (SI) yog cov khoom siv hlau tseem ceeb nrog ntau yam kev siv. Nov yog qee qhov kev siv tseem ceeb ntawm silicon hlau:

1. Cov khoom siv semiconductor: Silicon hlau yog ib qho tseem ceeb ntawm cov khoom siv semiconductor hauv kev lag luam hluav taws xob, uas yog siv los tsim ntau yam khoom siv hluav taws xob, xws li transistors, solar cells, photovoltaic cells, photoelectric sensors, thiab lwm yam. kev siv cov hlau nplaum silicon yog qhov loj heev.

2. Cov ntaub ntawv alloy: hlau silicon tuaj yeem siv los tsim cov ntaub ntawv alloy, uas tuaj yeem txhim kho lub zog, hardness thiab hnav tsis kam ntawm cov hlau. Hlau silicon alloy yog dav siv hauv steel smelting thiab casting kev lag luam, xws li stainless hlau, cemented carbide, refractory alloy thiab lwm yam.

3. Silicate ceramic cov ntaub ntawv: hlau silicon tuaj yeem siv los npaj cov ntaub ntawv silicate ceramic, cov khoom siv ceramic no muaj cov khoom siv rwb thaiv tsev zoo thiab kub kub hnav tsis kam, dav siv hauv hluav taws xob, metallurgy, tshuaj lom neeg kev lag luam, ceramics thiab lwm yam lag luam.

4. Silicone compounds: silicon hlau tuaj yeem siv los ua cov khoom siv raw ntawm cov khoom siv silicone rau kev tsim cov roj hmab silicone, silicone resin, silicone roj, silicone thiab lwm yam khoom. Cov khoom no muaj qhov kub thiab txias tsis kam, tsis kub tsis kam, tshuaj tiv thaiv corrosion, dav siv hauv aerospace, tsheb, kev tsim kho, kev kho mob thiab lwm yam.

5. Lwm qhov chaw: Silicon hlau kuj tuaj yeem siv rau kev npaj ntawm silicon carbon fiber, silicon carbon nanotubes thiab lwm yam ntaub ntawv ua tau zoo, rau kev npaj cov ntaub ntawv thermal rwb thaiv tsev, cov ntaub ntawv nto coatings, spark nozzles thiab lwm yam.

Feem ntau, silicon hlau yog ib qho tseem ceeb ntawm kev lag luam raw khoom, dav siv hauv electronics, metallurgy, ceramics, tshuaj, kev kho mob thiab lwm yam kev lag luam. Nrog rau kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, kev siv cov hlau silicon tseem txuas ntxiv nthuav dav thiab tsim kho tshiab, yuav muaj kev lag luam dav dav.

2.Global ntau lawm ntawm industrial silicon.

Nyob rau hauv cov nqe lus ntawm kev tsim muaj peev xwm: nyob rau hauv 2021, lub ntiaj teb no muaj silicon ntau lawm muaj peev xwm yog 6.62 lab tons, ntawm uas 4.99 lab tons yog concentrated nyob rau hauv Tuam Tshoj (SMM2021 muaj peev xwm ntau lawm qauv txheeb cais, tsis suav zombie ntau lawm muaj peev xwm ntawm 5.2-5.3 lab tons), accounting rau 75%; Cov peev txheej tsim tawm txawv teb chaws yog kwv yees li 1.33 lab tons. Nyob rau hauv lub xyoo caum dhau los, txawv teb chaws muaj peev xwm ua tau ruaj khov raws li ib tug tag nrho, yeej tswj tau ntau tshaj 1.2-1.3 lab tons..

Tuam Tshoj yog cov neeg tsim khoom loj tshaj plaws ntawm kev lag luam silicon, kev lag luam tsim cov nqi zoo, photovoltaic / silicon / aluminium alloy thiab lwm yam tseem ceeb kawg cov neeg siv khoom lag luam yog concentrated nyob rau hauv Suav teb, thiab muaj kev xav tau kev loj hlob, tiv thaiv txoj haujlwm tseem ceeb ntawm Tuam Tshoj txoj kev lag luam silicon ntau lawm. Kev ua lag luam tau cia siab tias lub ntiaj teb kev lag luam silicon muaj peev xwm ntau lawm yuav nce mus rau 8.14 lab tons hauv xyoo 2025, thiab Tuam Tshoj tseem tseem yuav muaj peev xwm loj hlob, thiab lub peev xwm siab tshaj plaws yuav ncav cuag 6.81 lab tons, suav txog ze li 80%. Txawv teb chaws, tsoos industrial silicon giants yog maj mam nthuav downstream, feem ntau yog tsom rau kev tsim lub teb chaws xws li Indonesia nrog cov nqi qis zog.

Nyob rau hauv cov nqe lus ntawm cov zis: tag nrho cov zis ntawm lub ntiaj teb no industrial silicon nyob rau hauv 2021 yog 4.08 lab tons; Tuam Tshoj yog lub ntiaj teb loj tshaj plaws tsim cov khoom lag luam silicon, nrog cov khoom lag luam nce mus txog 3.17 lab tons (SMM cov ntaub ntawv suav nrog 97, rov siv silicon), suav txog 77%. Txij li thaum xyoo 2011, Tuam Tshoj tau dhau Brazil ua lub ntiaj teb cov neeg tsim khoom loj tshaj plaws thiab cov neeg siv khoom lag luam silicon.

Raws li kev txheeb cais ntawm cov teb chaws Europe, xyoo 2020, Asia, Europe, South America thiab North America, qhov kev faib ua feem ntawm cov khoom siv silicon yog 76%, 11%, 7% thiab 5%, feem. Raws li kev txheeb cais ntawm lub teb chaws, kev lag luam tawm txawv teb chaws cov khoom siv silicon feem ntau yog nyob hauv Brazil, Norway, Tebchaws Meskas, Fabkis thiab lwm qhov chaw. Xyoo 2021, USGS tau tshaj tawm cov ntaub ntawv tsim cov hlau silicon, suav nrog ferrosilicon alloy, thiab Tuam Tshoj, Russia, Australia, Brazil, Norway, thiab Tebchaws Meskas tau ua tus thawj hauv kev tsim cov hlau silicon.