Carbide Nozzle Scenario Daim Ntawv Thov Hom Kev Kho Kom Zoo thiab Kev Pom Zoo

Carbide nozzles yog precision Cheebtsam ua los ntawm sintering nyuaj carbide cov ntaub ntawv (feem ntau tungsten carbide, WC) nrog hlau binders (xws li cobalt, Co). Kev khav theeb Vickers hardness ntawm ntau dua 1300 HV, zoo heev hnav tsis kam (10-20 npaug siab dua cov hlau ceev), thiab muaj zog thermal stability, lawv tau dhau los ua qhov tseem ceeb hauv cov haujlwm xws li kev lag luam, lub zog, thiab hluav taws xob. Tus yuam sij rau kev ua kom lawv cov txiaj ntsig zoo tshaj plaws yog nyob rau hauv qhov tseeb qhov xwm txheej-hom kev hloov pauv-ua raws li txoj cai nozzle hom rau kev ua haujlwm tshwj xeeb kom sib npaug ntawm kev ua tau zoo, ua haujlwm ntev, thiab kev siv nyiaj zoo.

Nyob rau hauv abrasive dav hlau ua scenarios, nrog rau sandblasting rau nto xeb tshem tawm thiab high-pressure dej dav hlau txiav ntawm hlau daim hlau, lub nozzle sab hauv phab ntsa yog tsis tu ncua cuam tshuam thiab abraded los ntawm high-ceev (txog 800 m / s) abrasive hais (xws li alumina, silicon carbide). Rau qhov no, nplua-grain carbide nozzles (nrog tungsten carbide grain loj ntawm 0.5-1μm) yog qhov kev xaiv zoo. Lawv cov microstructure ultra-dense minimizes qhov nkag mus ntawm abrasive hais, txo cov sab hauv phab ntsa coj tus nqi tseem ceeb - txuas ntxiv kev pab cuam lub neej los ntawm 3-5 zaug piv rau cov tsoos ceramic nozzles thiab txiav tsis tu ncua hloov downtime.

Rau cov xwm txheej kub kub xws li hlau smelting flue roj purification thiab pov tseg incineration tso pa kev kho mob, nozzles yuav tsum tiv taus ntev mus rau 800-1000 ℃ siab kub thaum tswj airflow stability. Ntawm no, tungsten-cobalt carbide nozzles (nrog rau cov ntsiab lus cobalt ntawm 6% -8%) ua tau zoo heev. Lub cobalt binder tsim ib daim ntawv cog lus ruaj khov nrog tungsten carbide nplej, tiv thaiv cov txheej txheem tawg los ntawm thermal shock thiab ua kom cov nyhuv zoo ib yam ntawm cov tshuaj atomization, uas yog ib qho tseem ceeb rau cov roj flue desulfurization thiab plua plav tshem tawm.

Hauv kev ua kua dej ua haujlwm zoo li semiconductor nti tu thiab LCD vaj huam sib luag txheej, txawm tias cov kua dej tsawg tsawg tuaj yeem ua rau muaj qhov tsis xws luag (xws li, 0.1μm-scale khawb) ntawm cov khoom siv. Polished carbide nozzles-nrog rau sab hauv phab ntsa nto roughness ntawm Ra≤0.02μm (ua tiav los ntawm 12-theem precision sib tsoo) - tshem tawm cov kua eddies, ua kom cov tshuaj tsuag tsis sib xws (nrog qhov sib txawv ntawm tsawg dua 5%) thiab ua tau raws li cov kev xav tau ntawm kev ua haujlwm siab ntawm cov khoom siv semiconductor.

Rau qhov hnyav-duty mining ib puag ncig (xws li, thee mine underground plua plav tshem tawm thiab kev thauj mus los ntawm cov pob zeb hauv av), cov nozzles ntsib ob txoj kev sib tw: kev sib tsoo ntawm cov thee / pob zeb tawg thiab corrosion los ntawm cov dej ntxhia nplua nuj. Thick-walled carbide nozzles (nrog rau phab ntsa tuab ntawm 5-8 hli, 2-3 npaug ntawm cov qauv nozzles) thiab txheej txheej tiv thaiv corrosion (piv txwv li, chromium plating) daws qhov teeb meem no. Lawv txo qhov hloov zaus ntau dua 60% piv rau cov hlau tsis zoo tib yam, txo cov nqi kho rau cov lag luam mining.

Tus nqi realization ntawm carbide nozzles stems los ntawm qhov sib sib zog nqus scenario-type synergy. Los ntawm kev txiav cov khoom siv (piv txwv li, kho cov ntsiab lus cobalt), cov qauv tsim (xws li, cov phab ntsa tuab), thiab kev ua tiav (piv txwv li, polishing ultra-fine) rau cov kev xav tau tshwj xeeb hauv kev lag luam, lawv tsis tsuas yog txo tus nqi txij nkawm los ntawm 30% -50% thiab txhim kho kev tsim khoom los ntawm 20% -30% tab sis kuj txhawb kev siv tshuab ua haujlwm siab. (yuav tsum tau nozzles nrog qhov tseeb qhov tseeb ntawm ± 0.005mm). Raws li kev lag luam xws li lub zog tshiab, semiconductors, thiab aerospace ua raws li cov qauv kev ua tau zoo dua, qhov kev hloov kho ntawm cov carbide nozzles yuav qhib lawv lub peev xwm ntxiv, dhau los ua tus tsav tsheb tseem ceeb rau kev txhim kho kev lag luam thiab kev txhim kho zoo.