Nyob rau hauv txhuas ua, kev tsim khoom, thiab cov ntawv thov muaj feem xyuam, cov tungsten cov khoom siv raws li indispensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable corepensable cov tseem ceeb. Aluminium tus qauv siv hluav taws xob thiab tshuaj lom neeg - Ua yeeb yaj kiab tsis zoo (237}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Cov qauv siv oxide), thiab muaj zog nruj xim rau cov khoom siv sib chungsten siv. Xaiv cov ntaub ntawv tsim nyog rau txhuas {{}}} Cov haujlwm ntsig txog ncaj qha cuam tshuam, khoom muaj txiaj ntsig, thiab cov cuab yeej pabcuam lub neej. Kab lus no yuav zoo piav qhia txog tungsten cov khoom siv haum rau cov ntawv thov txhuas thiab lawv cov yam ntxwv kev tshaj lij.
Tungsten, khav theeb ib qho Ultra {{0} HIGHT siv hluav taws xob (34) Txawm li cas los xij, tsis yog txhua lub tungsten cov ntaub ntawv yog cov muaj feem xyuam rau txhuas ua. Kev sib cuam tshuam ntawm tungsten thiab aluminium (xws li muaj peev xwm intermetallic compound tsim) thiab kev ua haujlwm tshwj xeeb, tsis muaj kev xaiv cov khoom lag luam tam sim no.
Tungsten Electrodes rau Aluminium Vuam
Aluminium vuam -}}} Tshwj xeeb yog roj tungsten arc vuam (gtaw Electrode xaiv cov neeg ncaj fab ntawm arc stability, weld tsim, thiab qhov tshwm sim tsis xws li tus nqi.
Ntshiab Tungsten Electrodes (W1) muab lub siab melting point thiab ruaj ruaj conductivity. Hauv qhov qis - tam sim no aluminium wranking operations (tsawg dua los yog sib npaug rau 150a), lawv tuaj yeem tswj tau Arc ruaj khov. Txawm li cas los xij, lawv lub siab- Kev ua tau zoo tam sim no yog txwv, thiab lawv muaj kev sib kis tau (ua kom zoo nkauj cig intermetall Yog li, ntshiab tungsten hluav taws xob tau tsim nyog tsuas yog rau kev yooj yim, qis-}}}}}}} Thov txhuas vuam cov haujlwm.
Thia tungsten electrodes (wt20), muaj 1.8 {{{{{{{{{{} Nrhiav tau muaj peev xwm piv rau cov tungsten ntshiab. Lawv tswj cov arcs ruaj khov txawm tias hauv nruab nrab- {}} Cov mob siab tam sim no (200}} Cov mob siab tam sim no (200} Ib qho ntxiv, lawv cov kab mob tsis kam yog ua kom zoo dua, txo cov txhuas adakesion thaum lub sijhawm vuam. Nco ntsoov tias thorium yog cov khoom siv hluav taws xob tsawg tsawg; Kev Nyab Xeeb Kev Nyab Xeeb Kev Nyab Xeeb (suav nrog qhov cua thiab cov khoom tiv thaiv tus kheej) yuav tsum tau siv thaum siv thiab cia.
Cerium - Tungsten Electrodes (WC20) ua qhov zoo tagnrho tsis- Cov kev xaiv hluav taws xob hloov tshiab rau kev hloov hluav taws xob hauv cov eleciated. Nrog 1.8 {- 2.2% cerium oxide cov ntsiab lus, lawv tshwj xeeb voltage tsawg dua los yog sib npaug rau 12v) thiab arc stability. Nyob rau hauv txhuas vuam, lawv txo kev sib yuav los ntawm ntau dua 30% thiab txhim kho weld tsim kev sib xws. Lawv cov kev sib kis tsis taus thiab kev pabcuam lub neej (1.5x
Lanthhangum - Tungsten Electrodes (WL15) sawv cev rau lwm qhov siab- Kev ua yeeb yam tsis {{3} {}} radioactive xaiv. Muaj 1.3 - 1.7% cov tshuaj ntsuab 1.7% {{ Qhov no txo cov tswv yim tshav kub kom aluminium workpieces los ntawm 15 {}}}}}}}}}}}
Tungsten alloys rau txhuas tuag -} caste casting pwm
Hauv Aluminium Tuag - caste casting ntev mus rau kev sib chwv tsis muaj dab tsi, thiab peb yuav tsum tau ua kom muaj kev tiv thaiv tsis haum, thiab thermal poob siab kuj. Tungsten alloys -}}}}}} {} {moder (W {{- ni-}} Cu) Systems-tau siv dav rau cov ntsiab lus pwm thiab cov ntxig.
W - ni -}}}}}} Lawv withstand molten aluminium cuam tshuam thiab kev coj tus kheej 30% qis dua li H13 ntxiv txuas cov pwm ua haujlwm. Lawv txoj kev ua haujlwm thermal (80-100 W / (MISX K. (MISK KIS) Cov kev faib khoom uas tsis muaj kev cuam tshuam rau lub zog tshav kub.
W - ni -}}}}} {}} ni {13- Fe). Qhov no ua rau lawv zoo tagnrho rau kev tsim khoom lag luam ua ke-txheej txheem txhuas tuag-casting txhuas hlau sib xyaw ua ke nrog cov kab noj hniav sib xyaw).
Tungsten carbide rau txhuas txiav cov cuab yeej
Aluminium txiav yog ib qeb tseem ceeb hauv cov khoom lag luam txhuas khoom lag luam. Vim tias txhuas lub hardness tsawg (HB30- 100) thiab muaj zog} 100) thiab siab, txiav {{4 4}} tig txheej txheem ntug. Tungsten carbide (WC - co)} Nrog Hardness Ntau tshaj li HRA85 thiab zoo tshaj li kev daws teeb meem rau txhuas txiav cov cuab yeej.
Cemented carbides nrog cov ncauj lus tsis tshua muaj cov ntsiab lus (co tsawg dua lossis sib npaug ntawm 6%) yog nyiam rau txhuas txiav. Txo cov ntsiab lus cob qhia minimizes tshuaj lom neeg muaj kuab lom nrog txhuas, txo kev ua tiav- mus rau ntawm 40%. Tsis tas li ntawd, zoo {{5} nplej tungsten carbide (Hra88-90) thiab coj txiav caj ces thaum lub sij hawm cav tshuab.
Kev kho cov npoo rau tungsten carbide cov cuab yeej txuas ntxiv kom ua kom tau zoo aluminium txiav kev ua haujlwm. Titanium nitride (tin) txheej (tuab) {{{{{}}} {rau 0.3, thaum titanium carbonitride los ntawm 50% piv rau cov cuab yeej tsis muaj txiaj ntsig. Cov txheej txheem no nthuav tawm lub neej los ntawm 2-3 X thiab txhim kho kev txuag qib siab aluminium machining (ntxaiv nrawm dua li 3000 rpm).
Hauv kev xaus, xaiv cov khoom siv tungsten tsim nyog rau txhuas kev ua haujlwm tau txiav txim siab ntawm kev ua haujlwm tshwj xeeb, kev ua haujlwm, thiab ntsuas kev ua haujlwm. Seb puas tau siv vuam hluav taws xob, tuag {{1} Castting Pwm Alloys, txhua cov khoom siv muaj cov yam ntxwv sib txawv thiab kev sau cov xwm txheej. Tsuas yog los ntawm kev xaiv cov khoom lag luam zoo tuaj yeem ua tiav cov kev ua tau zoo thiab ua tau zoo, tsav cov kev lag luam txhuas ua rau ntau qhov kev tsim kho thiab kev tsim kho tau zoo. With ongoing advancements in material science, next-generation high-performance tungsten materials tailored for aluminum applications-such as nanostructured tungsten alloys and multi-layer gradient coatings-will undoubtedly emerge and gain widespread adoption.
