Tungsten Electrode rau TIG Vuam
Hauv cov toj roob hauv pes loj ntawm kev tshawb fawb niaj hnub thiab kev lag luam, lub nkoj tungsten tshwm sim los ua ib qho cuab yeej zoo kawg nkaus nrog ntau hom kev siv thiab tseem ceeb heev.
tungsten nkoj yog khoom siv los ntawm tungsten, hlau paub txog nws cov khoom tshwj xeeb. Tungsten muaj qhov zoo kawg nkaus melting point, zoo heev thermal conductivity, thiab zoo kawg li tsis kam mus tshuaj tiv thaiv. Cov kev ua tau zoo no ua rau nws yog cov khoom siv zoo tshaj plaws rau kev tsim cov hlab ntsha uas tuaj yeem tiv taus huab cua.
Ib qho ntawm cov kev siv tseem ceeb ntawm cov nkoj tungsten yog nyob rau hauv lub tshuab nqus tsev deposition. Ntawm no, lub nkoj tau rhuab mus rau qhov kub siab nyob rau hauv lub tshuab nqus tsev chamber. Cov ntaub ntawv muab tso rau ntawm lub nkoj vaporize thiab tso rau hauv ib lub substrate, tsim cov yeeb yaj kiab nyias nrog cov tuab tuab thiab muaj pes tsawg leeg. Cov txheej txheem no yog qhov tseem ceeb hauv kev tsim khoom ntawm semiconductors. Piv txwv li, hauv kev tsim cov microchips, cov nkoj tungsten pab tso cov txheej txheem ntawm cov ntaub ntawv xws li silicon thiab hlau, tsim kom muaj cov kab hluav taws xob nyuaj uas ua rau peb lub ntiaj teb digital.
Hauv thaj av ntawm optics, tungsten nkoj ua lub luag haujlwm tseem ceeb. Lawv siv los tso cov coatings ntawm lo ntsiab muag thiab tsom iav, txhim kho lawv cov kev xav tau thiab kev xa mus. Qhov no ua rau kev txhim kho kev ua tau zoo hauv cov khoom siv kho qhov muag xws li koob yees duab, telescopes, thiab laser systems.
Kev lag luam aerospace kuj tau txais txiaj ntsig los ntawm cov nkoj tungsten. Cheebtsam raug kub thiab hnyav ib puag ncig thaum lub sij hawm mus ncig teb chaws chaw yog fabricated siv cov tswj deposition pab txhawb los ntawm cov nkoj no. Cov ntaub ntawv tso rau hauv qhov no muab kev ua kom sov zoo dua thiab ua haujlwm ntev.
tungsten nkoj kuj tau ua haujlwm hauv kev tsim cov khoom siv tshiab rau kev khaws cia thiab hloov dua siab tshiab. Lawv pab nyob rau hauv cov synthesis thiab characterization ntawm cov ntaub ntawv rau roj teeb thiab roj hlwb, tsav tsheb mus nrhiav kom tau ntau npaum li cas thiab sustainable zog daws.
Hauv kev tshawb fawb cov ntaub ntawv tshawb fawb, lawv ua rau txoj kev tshawb fawb ntawm cov theem hloov pauv thiab cov khoom ntawm cov khoom nyob rau hauv kev tswj cov evaporation. Qhov no pab cov kws tshawb fawb to taub thiab tswj cov cwj pwm ntawm cov khoom ntawm qib atomic.
Tsis tas li ntawd, hauv kev tsim cov coatings tshwj xeeb rau ntau yam kev siv hauv kev lag luam, tungsten nkoj ua kom cov ntaub ntawv zoo sib xws thiab cov ntaub ntawv siv tau zoo, txhim kho kev ua haujlwm thiab kev ua haujlwm ntev ntawm cov txheej txheej.
Lub nkoj tungsten yog ib qho tseem ceeb ntawm cov khoom siv thev naus laus zis. Nws lub peev xwm los pab tswj cov khoom pov tseg thiab evaporation ua rau nws yog ib qho tseem ceeb ntawm kev nce qib hauv ntau qhov chaw, ua rau lub neej yav tom ntej ntawm kev tshawb fawb thiab kev lag luam.
Peb cov khoom txheem ntau yam
Peb tsim cov nkoj evaporation ua los ntawm molybdenum, tungsten, thiab tantalum rau koj daim ntawv thov:
Tungsten evaporation nkoj
Tungsten yog cov corrosion-resistant heev piv nrog ntau cov hlau molten thiab, nrog lub siab tshaj plaws melting point ntawm tag nrho cov hlau, yog tsis tshua muaj kub-resistant. Peb ua cov khoom siv ntau dua corrosion-resistant thiab dimensionally ruaj khov los ntawm kev tshwj xeeb dopants xws li poov tshuaj silicate.
Molybdenum evaporation nkoj
Molybdenum yog cov hlau ruaj khov tshwj xeeb thiab tseem haum rau qhov kub thiab txias. Doped nrog lanthanum oxide (ML), molybdenum yog ntau dua ductile thiab corrosion-resistant. Peb ntxiv yttrium oxide (MY) los txhim kho cov neeg kho tshuab ua haujlwm ntawm molybdenum
Tantalum evaporation nkoj
Tantalum muaj qhov tsis tshua muaj vapor siab thiab qis evaporation ceev. Dab tsi yog qhov zoo tshaj plaws txog cov khoom siv no, txawm li cas los xij, yog nws qhov kev tiv thaiv corrosion siab.
Cerium-Tungsten Electrode
Cerium-Tungsten Electrodes muaj qhov zoo pib arc kev ua tau zoo nyob rau hauv cov xwm txheej ntawm qis crrrent. Lub arc tam sim no tsis tshua muaj, yog li cov electrodes tuaj yeem siv rau vuam ntawm cov yeeb nkab, stainless hlau thiab cov khoom zoo. Cerium-Tungsten yog thawj qhov kev xaiv rau kev hloov Thoriated Tungsten nyob rau hauv qhov tsis tshua muaj DC.
| Cov cim lag luam | Ntxiv | impurity | Lwm yam | Tungsten | Hluav taws xob | Xim |
| WC 20 | CeO2 | 1.80 - 2.20% | <0.20% | Tus so | 2.7-2.8 Nws | Grey |
Lanthanated Tungsten Electrode
Lub lanthanated tungsten tau nrov heev nyob rau hauv lub voj voog ntawm vuam nyob rau hauv lub ntiaj teb no tsis ntev tom qab nws tau tsim vim nws txoj kev vuam zoo. Cov hluav taws xob conductivity ntawm lanthanated tungsten feem ntau kaw rau ntawm 2% thoriated tungsten. Welders tau yooj yim hloov thoriated tungsten Electrode nrog lanthanated tungsten electrode ntawm AC lossis DC thiab tsis tas yuav hloov cov kev pab cuam vuam. Cov xov tooj cua los ntawm thoriated tungsten tuaj yeem zam tau. Lwm qhov zoo dua ntawm lanthanated tungsten yog muaj peev xwm dais siab tam sim no thiab muaj qhov qis tshaj qhov kub-tsawg.
| Cov cim lag luam | Ntxiv | impurity | Lwm yam | Tungsten | Hluav taws xob | Xim |
| WL 10 | La2O3 | 0.80 - 1.20% | <0.20% | Tus so | 2.6-2.7 Nws | Dub |
| WL 15 | La2O3 | 1.30 - 1.70% | <0.20% | Tus so | 2.8-3.0 Nws | Daj |
| WL 20 | La2O3 | 1.80 - 2.20% | <0.20% | Tus so | 2.8-3.2 | Ntuj xiav |
Zirconated Tungsten Electrode
Zirconiaated tungsten muaj kev ua tau zoo hauv AC vuam, tshwj xeeb tshaj yog nyob rau hauv siab load tam sim no. Lwm yam electrodes nyob rau hauv cov nqe lus ntawm nws cov kev ua tau zoo heev tsis tuaj yeem hloov Zirconated tungsten electrodes. Cov electrode tuav lub pob kawg thaum vuam, uas ua rau tsawg tungsten permeation thiab zoo corrosion kuj.
Peb cov kws tshaj lij tau koom nrog kev tshawb fawb thiab kev sim ua haujlwm thiab ua tiav kev daws teeb meem ntawm zirconium cov ntsiab lus thiab cov khoom ua haujlwm.
| Cov cim lag luam | Ntxiv | Impurity ntau | Lwm yam | Tungsten | Hluav taws xob | Xim kos npe |
| WZ 3 | ZrO2 | 0.20 - 0.40% | <0.20% | Tus so | 2.5-3.0 Nws | Xim av |
| WZ 8 | ZrO2 | 0.70 - 0.90% | <0.20% | Tus so | 2.5-3.0 Nws | Dawb |
Thoriated Tungsten
Thoriated tungsten yog cov khoom siv tungsten feem ntau siv, Thoria yog cov khoom siv hluav taws xob tsawg, tab sis nws yog thawj zaug los nthuav tawm qhov kev txhim kho tseem ceeb ntawm cov ntshiab tungsten.
Thoriated tungsten yog ib qho zoo siv tungsten rau DC daim ntaub ntawv, vim nws ua haujlwm zoo txawm tias thaum overload nrog ntxiv amperage, yog li txhim kho kev ua haujlwm ntawm vuam.
| Cov cim lag luam | THOV2Cov ntsiab lus(%) | Xim kos npe |
| WT 10 | 0.90-1.20 Nws | Thawj |
| WT 20 | 1.80-2.20 Nws | Liab |
| WT 30 | 2.80-3.20 Nws | Ntshav |
| WT 40 | 3.80-4.20 Nws | Txiv kab ntxwv Primary |
Ntshiab Tungsten Electrode:Haum rau vuam nyob rau hauv alternating tam sim no;
Yttrium tungsten electrode:Feem ntau siv hauv kev ua tub rog thiab kev lag luam aviation nrog nqaim arc beam, siab compressing zog, siab tshaj vuam nkag ntawm nruab nrab thiab siab tam sim no;
Composite Tungsten Electrode:Lawv qhov kev ua tau zoo tuaj yeem txhim kho tau zoo los ntawm kev ntxiv ob lossis ntau dua lub ntiaj teb oxides uas tsis tshua muaj kev sib koom ua ke. Lub Composite Electrodes tau dhau los ua qhov tsis zoo hauv tsev neeg electrode. Hom tshiab Composite Tungsten Electrode tsim los ntawm peb tau teev nyob rau hauv Lub Xeev Txoj Kev Npaj rau cov khoom tshiab.
| Electrode npe | Kev lag luam | Ntxiv impurity | Impurity ntau | Lwm yam impurities | Tungsten | Hluav taws xob tawm hluav taws xob | Xim kos npe |
| Ntshiab Tungsten Electrode | WP | -- | -- | <0.20% | Tus so | 4.5 | Ntsuab |
| Yttrium-Tungsten Electrode | WY 20 | YO2 | 1.80 - 2.20% | <0.20% | Tus so | 2.0-3.9 hli | Xiav |
| Composite electrode | WRex | ReOx | 1.00 - 4.00% | <0.20% | Tus so | 2.45-3.1 Nws |