Lub npe ntawmSilicon hlau 441yog muab los ntawm impurity cov ntsiab lus txwv (Fe Less tshaj los yog sib npaug rau 0.4%, Al Less tshaj los yog sib npaug rau 0.4%, Ca Less tshaj los yog sib npaug rau 0.1%), nrog ib tug tseem ceeb ntawm Si Greater dua los yog sib npaug rau 98%. Nws lub cev muaj zog yog raws li nram no: tsos: nyiaj-grey block/granular; melting point: 1410 degree; ceev: 2.33g / cm³; hardness: 7.0 (Mohs hardness); Chemically ruaj khov, muaj peev xwm txo qis thiab alloying ntawm qhov kub thiab txias; nruab nrab impurity cov ntsiab lus; ntsuas kev ua tau zoo thiab tus nqi, ua rau tus nqi - xaiv zoo rau cov ntawv thov kev lag luam.
Core Application Areas thiab Technical Details
(1) Kev Lag Luam Metallurgical: Cov Khoom Tseem Ceeb rau Deoxidation thiab Alloying
Tus nqi tseem ceeb ntawm silicon 441 nyob rau hauv metallurgical teb nyob rau hauv deoxidation thiab kev ua tau zoo optimization, haum rau steelmaking, cam khwb cia hlau, thiab txhuas alloy ntau lawm:
Steelmaking Deoxidation:Silicon muaj cov tshuaj tiv thaiv tsis muaj zog nrog cov pa oxygen, nyiam ua ke nrog cov pa oxygen hauv cov hlau molten los ua SiO₂, uas raug tshem tawm nrog cov slag. Ntxiv 0.3%-0.6% ntawm cov hlau molten tuaj yeem txo cov pa oxygen ntawm cov hlau molten los ntawm 80-100ppm rau 40-60ppm. Tib lub sijhawm, nws ua raws li cov khoom siv slag, txhawb cov impurity daws teeb meem thiab txhim kho steel purity, ua rau nws tsim nyog rau kev tsim cov pa roj carbon zoo tib yam thiab cov hlau tsis tshua muaj hlau.
Cam khwb cia hlau hloov kho:Ntxiv raws li ib qho inoculant (0.2% -0.5% ntawm cov hlau molten), nws txhawb nqa graphitization nag lossis daus, ua kom cov nplej zom, thiab ua rau muaj kev cuam tshuam hnyav ntawm grey cam khwb cia hlau los ntawm 20% -30%, ua rau nws haum rau dav hlau cam khwb cia qhov chaw xws li tshuab cuab tam txaj thiab kav dej.
Aluminium alloy qhov rooj:Ib qho tseem ceeb ntawm cam khwb cia aluminium alloys (ntxiv tus nqi 5%-12%), nws tsim ib qho Al-Si khoom tov nrog txhuas, txhim kho cov alloy casting fluidity, hardness, thiab hnav tsis kam. Piv txwv li, nyob rau hauv lub tsheb cav blocks thiab log hubs, qhov sib ntxiv ntawm si441 mus rau 6061 txhuas alloy tsub kom lub casting tawm los ntawm 10% -15% thiab nce lub tensile zog ntawm 200MPa mus rau ntau tshaj 260MPa.
(2) Kev lag luam tshuaj: Cov khoom siv raw rau Organosilicon Synthesis
Silicon hlau qib 441 yog lub hauv paus pib ntawm kev lag luam organosilicon, txhawb kev tsim khoom ntawm ntau tus nqi siab - ntxiv cov khoom:
Core Function:Raws li cov khoom siv raw rau kev sib txuas ntawm silicon monomers (xws li methylchlorosilane), nws reacts nrog chloromethane ntawm 300-350℃nyob rau hauv qhov kev txiav txim ntawm tooj liab-raws li catalyst. Cov txiaj ntsig silicon monomers tuaj yeem ua polymerized los tsim cov roj silicone, silicone roj hmab, silicone resin, thiab lwm yam khoom;
Performance Advantages:Vim tias Ca Tsawg dua lossis sib npaug li 0.1%, cov tshuaj tiv thaiv kab mob catalytic tuaj yeem zam tau, ua kom muaj qhov hnyav molecular faib ntawm organosilicon polymers. Cov khoom muaj zoo heev -kub tsis kam (-50℃mus rau 200 degree), aging kuj, thiab waterproof thiab insulating zog;
Cov ntawv thov raug:Lub tsev sealants, cov khoom ntim khoom siv hluav taws xob, cov khoom siv tshuaj pleev ib ce, thiab lwm yam. Piv txwv li, silicone sealants rau lub tsev ntaub thaiv phab ntsa, siv 441 qib silicon hlau ua raw khoom, tuaj yeem tiv taus ntev - lub hnub thiab nag, nrog lub neej sealing ntawm ntau tshaj 15 xyoo.
(3) Kev lag luam Electronics: Raw Material Basis rau Semiconductors thiab Electronic Cheebtsam
Tom qab ua kom huv si, nws yog xim hlau silicon 441 tuaj yeem hloov kho mus rau hauv hluav taws xob- qib silicon cov khoom, tsim nyog rau cov tub ntxhais hluav taws xob:
Txheej txheem Purification:Los ntawm cov txheej txheem xws li tshuaj vapor deposition (CVD) thiab cheeb tsam melting purification, purity ntawm Si yog nce mus rau saum toj 99.9999% (6N), ua polycrystalline silicon los yog monocrystalline silicon;
Core Applications:Monocrystalline silicon, tom qab txiav, dhau los ua silicon wafers, uas yog cov tseem ceeb ntawm cov khoom siv hluav taws xob xws li kev sib xyaw ua ke (ICs), diodes, thiab transistors, haum rau cov khoom siv davhlau ya nyob twg xws li xov tooj ntawm tes, khoos phis tawj, thiab lub zog tshiab;
Technical Requirements:Electronic- cov ntawv thov qib muaj cov kev cai nruj rau thawj zaug purity ntawm 441silicon, yuav tsum tau tswj cov kab tsis huv xws li B thiab P Tsawg dua lossis sib npaug li 0.0001% kom tsis txhob cuam tshuam cov hluav taws xob ua haujlwm ntawm cov khoom siv hluav taws xob.
(4) Kev Lag Luam Cov Khoom Siv Hluav Taws Xob: Siab -Qhov Kub Ua Haujlwm thiab Antioxidant Enhancer
Cov tshuaj tiv thaiv kab mob antioxidant thiab siab - qhov kub thiab txias ntawm silicon hlau 441 qib ua rau nws ua tau zoo - zoo additive rau cov ntaub ntawv refractory:
Mechanism ntawm Action:When added to refractory bricks and castables (at a ratio of 5%-10%), it forms a dense SiO₂ oxide film at high temperatures, preventing oxygen from reacting with the refractory matrix and improving high-temperature resistance (operating temperature can reach above 1600℃) and wear resistance;
Cov ntawv thov raug:Steelmaking furnace linings, industrial kilns, kiln rooj tog, thiab lwm yam. Piv txwv li, nyob rau hauv steel cog converters, cov kev pab cuam lub neej ntawm magnesia - carbon bricks tau nce los ntawm 600 heats mus rau ntau tshaj 800 heats tom qab ntxiv 441 qib silicon hlau, txo nqi txij nkawm.
(5) Lwm qhov tshwj xeeb thov thaj chaw
Hlau txo:Siv los ua tus neeg sawv cev txo qis hauv kev smelting ntawm qee yam hlau tsis tshua muaj (xws li titanium thiab zirconium), siv nws cov khoom muaj zog txo kom txo tau cov hlau oxides rau cov hlau uas tsis muaj impurity residue;
Hmoov metallurgy:Silicon hmoov yog ntxiv rau cov hmoov metallurgy cov khoom (3%-8%) los txhim kho qhov siab -kub lub zog, hnav tsis kam, thiab oxidation tsis kam ntawm cov khoom, ua rau lawv haum rau hnav-resistant qhov chaw xws li lub cav pistons thiab lub zog;
Tshiab Ceramic Alloys:Composites nrog alumina, silicon nitride, thiab lwm yam, los tsim high-cov ntaub ntawv ceramic rau cov ntaub ntawv siv dav xws li aerospace cav hniav thiab siab-kawg txiav cov cuab yeej, combining siab zog thiab siab - kub kuj.
Daim ntawv thov ceev faj thiab xaiv Logic
(1) Dosage Control
Metallurgical teb:Steelmaking 0.3% -0.6%, Cam khwb cia hlau 0.2% -0.5%, Aluminium Alloy 5% -12%. Kev noj ntau dhau tuaj yeem yooj yim ua rau cov khoom lag luam embrittlement lossis kev ua haujlwm hloov pauv.
Chemical Field:Nyob rau hauv organosilicon synthesis, qhov kev pub mis ntawm silicon Industrial 441 rau chloromethane yog kwv yees li 1: 3.5 (molar ratio), yuav tsum tau tswj kom meej meej los txhim kho cov tshuaj tiv thaiv tawm los.
(2) Txoj Cai Xaiv
Rau purity siab dua (piv txwv li, qib hluav taws xob, siab -end organosilicon),Silicon 3303(Fe Tsawg dua lossis sib npaug rau 0.3%, Al Tsawg dua lossis sib npaug rau 0.3%, Ca Tsawg dua lossis sib npaug rau 0.03%) tuaj yeem xaiv.
Rau cov nqi- cov ntawv thov nkag siab (piv txwv li, cov khoom siv refractory zoo tib yam, qis- yuav tsum tau alloys),Silicon hlau 553(Fe Tsawg dua lossis sib npaug rau 0.5%, Al Tsawg dua lossis sib npaug rau 0.5%, Ca Tsawg dua lossis sib npaug rau 0.3%) tuaj yeem xaiv.
Rau metallurgical, general organosilicon, thiab cov pa hluav taws xob cov khoom siv hluav taws xob zoo sib xws, nws yog xim hlau silicon 441 yog qhov kev xaiv zoo tshaj plaws rau cov nqi sib npaug -kev ua tau zoo.
(3) Kev khaws cia thiab kev thauj mus los
Khaws rau hauv qhov chaw qhuav thiab qhov cua kom tsis txhob ya raws thiab oxidation (tom qab oxidation, SiO₂ zaj duab xis yuav
daim ntawv ntawm qhov chaw, uas yuav cuam tshuam rau reactivity); Siv cov khoom ya raws- pov thawj ntim (xws li lub hnab ntim ntim + cov yeeb yaj kiab sab hauv) thaum lub sijhawm thauj mus los kom tsis txhob sib cuag nrog cov kua qaub thiab tiv thaiv kev sib kis los ntawm impurities.
