Silicon (Si) thiab magnesium (Mg) yog ob lub ntsiab lus tseem ceeb hauv cov khoom siv niaj hnub no. Thaum txhua tus muaj cov khoom sib txawv ntawm tus kheej-silicon ua ib qho semiconductor thiab deoxidizer, magnesium raws li lub teeb pom kev zoo hlau- lawv cov kev sib koom ua ke hauv cov alloys thiab master alloys tsim muaj txiaj ntsig tshaj lawv cov peev xwm sib txawv. Kev nkag siab tias lawv cuam tshuam li cas yog qhov tseem ceeb rau kev txhim kho lub teeb yuag, kev ua haujlwm siab - kub, thiab kev tsim khoom ruaj khov.
1. Master Alloy:Silicon{0}}Magnesium(SiMg) rau Cov Hlau Hlau
Kev tsim kho kev lag luam feem ntau yog nyob rau hauv kev tsim cov khoom siv hlau (nodular) cam khwb cia hlau. Thaum magnesium tau nkag mus rau hauv molten hlau uas muaj silicon, nws reacts nrog sulfur thiab oxygen los tsim MgS thiab MgO. Qhov tseem ceeb tshaj, magnesium ua rau graphite los nag los ua cov nodules tsis muaj zog, nkig flakes. Silicon ua raws li tus neeg nqa khoom thiab stabilizer, kom ntseeg tau tias cov khoom sib xws ntawm magnesium faib thiab txhawb kev ua kom huv, ua kom pom tseeb. Cov txiaj ntsig ntawm SiMg master alloy (feem ntau 5-20% Mg tshuav Si) hloov cov hlau grey rau hauv cov hlau uas muaj zog tensile siab, qaug zog tsis kam, thiab kev poob siab ({6}}tseem ceeb rau tsheb crankshafts, yeeb nkab fittings, thiab cua turbine hubs.
2. Txhim kho Aluminium-Silicon-Magnesium (Al-Si-}Mg) Alloys (6xxx Series)
Nyob rau hauv aluminium foundry thiab extrusion alloys (xws li, 6061, 6082), magnesium thiab silicon ua ke los tsim cov intermetallic compound Mg₂Si. Cov theem no yog thawj tus neeg sawv cev ntxiv dag zog tom qab kev kho cua sov thiab kev laus. Yog tsis muaj magnesium, silicon ib leeg tseem tsis muaj zog; tsis muaj silicon, magnesium tsis tuaj yeem ua kom dej nag zoo. Qhov sib piv tswj tau (feem ntau Mg: Si ze 1.73: 1 los ntawm qhov hnyav) ua kom muaj hnub nyoog siab tshaj plaws - cov lus teb nyuaj. Qhov no ua rau lub teeb yuag, weldable, corrosion{11}}cov ntaub ntawv tiv taus rau cov txuas hniav, lub tsheb chassis, thiab cov dab dej kub{12}} qhov twg yuav tsum muaj thermal conductivity thiab mechanical zog.
3. Thermal thiab Corrosion Synergies
Silicon txhim kho fluidity ntawm magnesium{0}} nplua nuj melts thaum lub sij hawm casting, txo porosity. Lub caij no, magnesium txhim kho silicon lub ntuj oxidation tsis kam ntawm qhov kub thiab txias. Hauv qee qhov cua sov-cov alloys resistant, me me ntxiv ntawm ob lub ntsiab tiv thaiv kab ciam embrittlement thiab txhim kho creep kev ua tau zoo mus txog 300℃.
4. Sustainability thiab Recycling
Ob qho hlau yog cov khoom siv rov ua dua tshiab, thiab lawv cov kev sib xyaw ua ke txo qis zog melting piv rau steel lossis tooj liab-raws li tshuab. SiMg master alloys kuj txo qhov kev xav tau ntawm cov tsis tshua muaj -lub ntiaj teb nodularizing tus neeg sawv cev, txiav nqi thiab cov saw hlau txaus ntshai.
Xaus
Lub tswv yim ua khub ntawm silicon thiab magnesium tsis yog kev sib tsoo. Silicon muab fluidity, deoxidation, thiab nag lossis daus qhov chaw; magnesium xa cov nodularization thiab hnub nyoog - hardening peev xwm. Ua ke, lawv ua kom cov hlau nplaum, 6xxx-series aluminium alloys, thiab tom ntej - tiam sib xyaw. Rau cov engineers thiab metallurgists, mastering Si-Mg tshuav nyiaj li cas yog ib txoj hauv kev ua kom muaj zog, sib zog, thiab cov ntaub ntawv ntsuab.
📧E-mail: goldenltd.silicon@gmail.com 📞WhatsApp:8616663721147
