Gas Atomization txheej txheem
Nyob rau hauv xyoo tas los no, vim hais tias ntawm kev xav tau ntawm cov hmoov hlau nyob rau hauv kev ua lag luam, ceramics ua los ntawm boron nitride tau dhau los ua neeg nyiam siv hauv molten hlau atomization.
Atomization yog txheej txheem ntawm kev hloov cov khoom uas yog cov khoom los yog kua rau hauv nws lub xeev tsis muaj roj. Cov txheej txheem no feem ntau siv hauv kev lag luam hlau molten los ua cov hmoov hlau zoo ntawm cov khoom xws li txhuas, hlau, stainless hlau, thiab super-alloys.
Cov txheej txheem ntawm atomization ntawm molten hlau tuaj yeem tawg ua peb theem sib txawv.
Ua ntej, koj yuav tsum tau nchuav cov hlau molten los ntawm lub nozzle ua los ntawm Boron Nitride (BN).
Tom qab ntawd, cov kwj dej los yog cov pa roj yuav tsum tau siv los nthuav tawm cov kua hlau.
Qhov kawg tab sis tsis kawg, sau cov hmoov hlau zoo uas tau nyob hauv qab, thiab muab tso rau hauv 3D luam ntawv thiab lwm yam kev lag luam tseem ceeb.
Atomization tuaj yeem ua tiav ntau txoj hauv kev, suav nrog kev siv dej thiab roj.
1. Dej Atomization
Feem ntau, dej atomization yog siv los ua hlau hmoov, tshwj xeeb tshaj yog rau cov hlau uas ua los ntawm hlau. Nws yog lub luag haujlwm ntawm 60 thiab 70 feem pua ntawm lub ntiaj teb kev tsim cov hmoov hlau. Lub atomization ntawm dej kuj tseem siv tau los ua cov tooj liab ntau, npib tsib xee, stainless hlau, thiab cov hmoov sib nqus mos.
Dej atomization tau dhau los ua neeg nyiam hauv kev lag luam hmoov metallurgy vim nws raug nqi tsawg dua li lwm txoj hauv kev. Piv nrog rau cov roj thiab lwm yam khoom siv dav hlau, nws siv lub zog tsawg dua los khiav thiab muaj cov khoom tsim tau ntau dua. Txawm li cas los xij, thaum cuam tshuam nrog cov hlau thiab cov hlau tsis zoo, txawm li cas los xij, dej atomization tsis zoo. Qhov no ua rau kev tsim cov roj atomization nrog rau lwm txoj hauv kev atomizing.
2. Gas Atomization
Lub atomization ntawm cov pa txawv ntawm atomization ntawm dej nyob rau hauv ntau txoj kev. Nyob rau hauv cov txheej txheem ntawm kev sib cais cov kua hlau, dej atomization ua rau siv cov dav hlau dej, whereas gas atomization ua rau kev siv cov high-velocity gas. Thaum lub siab ntawm qhov nruab nrab muaj qhov cuam tshuam loj rau lub atomization ntawm dej, qhov no tsis ua lub luag haujlwm hauv atomization ntawm cov pa. Cov txheej txheem roj atomization kuj tuaj yeem siv rau ntawm ntau yam khoom siv. Gas atomization yog dav siv nyob rau hauv cov hmoov metallurgy ntawm zinc, txhuas, thiab tooj liab alloys. Qhov no yog vim qhov xav tau ntawm cov yam ntxwv uas tau tham saum toj no.
Hauv cov txheej txheem atomization, cov kev xav tau rau lub nozzles yog raws li hauv qab no:
Muaj ntau yam khoom siv rau kev siv hauv cov txheej txheem atomization. Txhawm rau pib, ib puag ncig uas tsis tshua muaj siab lossis ib qho uas muaj lub tshuab nqus tsev siab yuav tsum muaj. Ntxiv rau qhov ntawd, cov khoom siv dav hlau xws li dej lossis roj yog qhov tsim nyog. Qhov tseem ceeb tshaj plaws, cov txheej txheem atomization tsis tuaj yeem ua tau zoo yam tsis muaj qhov tsim tau zoo. Cov nozzles tawg lossis txhaws tuaj yeem cuam tshuam cov txheej txheem ntawm kev tsim cov hmoov, yog li kev tsim cov nozzles yog qhov tseem ceeb. Yog li ntawd, lub nozzle yuav tsum tau ua raws li cov lus hais saum toj no.
High Hardness: Txhawm rau tiv thaiv cov kab nrib pleb hauv lub nozzles siv rau hauv cov txheej txheem atomization, cov ntaub ntawv siv yuav tsum yog qib siab hardness.
High Thermal Shock Stability: Cov ntaub ntawv muaj zog yog siv los xyuas kom meej tias cov khoom yuav txuas ntxiv ua haujlwm zoo txawm tias thaum raug kub.
Cov khoom dab tsi ua rau Boron Nitride yog cov khoom siv zoo tshaj plaws rau cov hlau atomizing nozzle?
Boron Nitride, Silicon Carbide, thiab Zirconia yog peb yam khoom uas tsim los ntawm peb cov khoom tshwj xeeb BN ceramic composite. Vim nws hardness thiab stability, cov khoom no yog zoo tagnrho rau siv nyob rau hauv kev lag luam uas cuam tshuam nrog molten hlau. Nov yog nws cov khoom zoo heev:
Lub zog zoo heev
Kev ua haujlwm zoo thermal
Yooj yim machinable
Tsawg clogging nyob rau hauv lub atomizer
Hauv kev xaus, Boron Nitride ceramics muaj lub zog zoo tshaj plaws thiab kev ua haujlwm thermal uas zoo heev ruaj khov, ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau kev ua cov nozzles uas siv rau hauv atomization ntawm molten hlau.
