Kev siv thaj chaw ntawm tungsten
Apr 04, 2026| Kev lag luam hlau
Tungsten muaj siab hardness thiab qhov ntom ntom ze rau cov kub, yog li txhim kho lub zog, hardness, thiab hnav tsis kam ntawm hlau. Nws yog ib qho tseem ceeb alloying ntsiab siv nyob rau hauv zus tau tej cov ntau yam steel khoom. Feem ntau tungsten-cov hlau muaj xws li siab- steel ceev thiab tungsten-cobalt hlau nplaum nrog cov hlau nplaum siab thiab coercivity, feem ntau yog siv los tsim ntau yam hnav- cov cuab yeej tiv taus thiab cov hluav taws xob hluav taws xob.
Kev lag luam Hard Alloy
Tungsten carbides muaj qhov hnav tsis kam thiab nyuaj rau yaj, nrog lub hardness mus txog ntawm pob zeb diamond, ua rau lawv haum rau siv hauv cov alloys nyuaj. Tam sim no, tungsten carbide-raws li nyuaj alloys yog cov neeg siv khoom loj tshaj plaws ntawm tungsten. Cov khoom siv tawv tawv no yog cov hmoov hlau metallurgy uas ua los ntawm sintering micron - loj tungsten carbide hmoov nrog cov hlau khi (xws li cobalt, npib tsib xee, thiab molybdenum) hauv lub tshuab nqus tsev lossis hydrogen txo qhov cub. Tungsten carbide-raws li cemented carbides tuaj yeem faib ua plaub pawg: tungsten carbide-cobalt, tungsten carbide-titanium carbide-cobalt, tungsten carbide-{10} titanium carbide-titanium carbide carbide{11}}cobalt, thiab steel-bonded cemented carbides. Cov tungsten carbide-raws li cemented carbides yog siv los ua cov cuab yeej txiav, cov cuab yeej mining, thiab hlau kos duab tuag.
Hnav-cov alloys tiv taus
tungsten muaj qhov siab tshaj plaws melting point ntawm tag nrho cov hlau thiab kuj yog ib qho nyuaj heev, ua rau nws tsim nyog rau tsim high - kub- lub zog thiab hnav - resistant alloys. Piv txwv li, alloys ntawm tungsten nrog chromium, cobalt, thiab carbon feem ntau yog siv los tsim cov siab - lub zog thiab hnav- cov khoom tiv thaiv xws li li qub rau aero- cav thiab turbine impellers. Alloys ntawm tungsten nrog rau lwm cov hlau refractory (xws li tantalum, niobium, molybdenum, thiab rhenium) feem ntau yog siv los tsim cov siab - kub- lub zog qhov chaw xws li nozzles thiab cav rau aero- foob pob ua ntxaij cav.
Electronics
Tungsten muaj plasticity siab, tsawg evaporation tus nqi, siab melting point, thiab muaj zog electron emission muaj peev xwm, ua tungsten thiab nws alloys lug siv nyob rau hauv lub electronics thiab fais fab mov industries. Piv txwv li, tungsten filaments, nrog rau lawv cov luminous efficiency thiab ntev kev pab cuam lub neej, yog siv los tsim filaments rau incandescent teeb thiab tungsten iodine teeb. Tungsten hlau tuaj yeem siv los tsim cov khoom siv hluav taws xob ncaj qha cathode thiab kab sib chaws ntawm cov tshuab hluav taws xob oscillator, nrog rau cov khoom siv hluav taws xob ncaj qha cathode heaters hauv ntau yam khoom siv hluav taws xob. Cov khoom ntawm tungsten kuj ua rau nws cov khoom siv vuam tsim nyog rau TIG thiab lwm yam khoom siv electrode zoo sib xws.