Lub zog loj pob zeb khoom siv planetary pob zeb

Covhigh-zog pob millingtxoj kev siv cov kev sib hloov los yog kev vibration ntawm lub siab-zog pob zeb ua rau cov pob zeb sib tsoo kom muaj kev cuam tshuam, zom thiab do cov ntaub ntawv raw rau crushing hlau los yog alloy hmoov rau hauv nano-sized hais. Yog hais tias ob los yog ntau tshaj hlau hmoov muab tso rau hauv lub pob zeb lub nozzle tib lub sij hawm rau high-zog pob milling, cov hmoov hais yog dov, nias, crushed, thiab nias dua (rov ua dua txheej txheem ntawm txias vuam, crushing, thiab txias welding) . ), thiab thaum kawg tau cov hmoov txhuas nrog cov qauv sib xws thiab cov khoom sib xyaw. Txij li txoj kev no siv lub zog siv hluav taws xob kom ua tiav alloying es tsis yog siv lub zog thermal lossis hluav taws xob, cov txheej txheem ntawm kev npaj cov hmoov txhuas los ntawm lub zog loj pob milling yog hu ua mechanical alloying.
Txhawm rau npaj cov nanocrystals los ntawm lub zog loj pob zeb, nws yog ib qho tsim nyog los tswj cov kev txwv thiab cov xwm txheej hauv qab no, uas yog, xaiv cov khoom ntawm lub pob nyuaj (stainless steel pob, agate pob, cemented carbide pob, thiab lwm yam), tswj lub pob pob milling kub thiab lub sij hawm, thiab feem ntau siv micron-theem hmoov los yog me me-sized strip fragments, particle loj, muaj pes tsawg leeg thiab cov qauv kev hloov thaum lub sij hawm milling yog saib xyuas los ntawm X-ray diffraction, electron microscopy thiab lwm txoj kev ntawm pob-milled hmoov ntawm txawv sij hawm.
Cov yam ntxwv ntawm lub pob zeb planetary yog qhov txav ntawm lub pob zeb sib tsoo ntau dua thiab lub zog tau txais ntau dua. Hom pob zeb no tuaj yeem npaj ntau pawg ntawm cov ntaub ntawv tib lub sijhawm raws li cov txheej txheem tib yam, uas yooj yim rau kev tshawb fawb thiab siv dav.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub pob zeb planetary yog tias ntau lub pob milling tso tsheb hlau luam tau teeb tsa rau ntawm lub voj voog ntawm cov rotating disk, uas tig nrog lub rotating disk thiab tig ntawm kev kub ceev. Nyob rau hauv qhov kev txiav txim ntawm inertial quab yuam, cov khoom sib tsoo nyob rau hauv lub pob zeb tank tsim ib tug loj-frequency cuam tshuam thiab kev sib txhuam ntawm cov ntaub ntawv, uas ua rau kom ceev thiab zoo sib tsoo. Vibrating high-zog pob zeb. Vibrating high-zog pob zeb zeb yog cov khoom sib tsoo zoo thiab cov khoom siv sib tsoo zoo heev uas siv cov khoom sib tsoo (spherical los yog pas nrig-puab) los cuam tshuam, rub, shear, thiab lwm yam cov ntaub ntawv nyob rau hauv high-frequency vibrating cylinder los tsoo cov ntaub ntawv.
Thaum lub pob zeb planetary ua haujlwm, qhov kev txav ntawm qhov nruab nrab nyob ntawm hom kev vibration, cov duab ntawm kev sib tsoo chim thiab tus nqi filling. Qhov siab dua qhov amplitude thiab zaus ntawm kev co, qhov zoo dua qhov me me ntawm cov khoom. Qhov ntau dua qhov filling tus nqi ntawm cov khoom, lub coarser lub particle loj. Qhov ntim ntawm qhov nruab nrab yog qhov zoo dua 60% mus rau 80%. Nyob rau hauv ib qho chaw, qhov chaw tshwj xeeb ntawm cov khoom yog proportional rau lub sij hawm crushing. Raws li kev pub mis, nws tuaj yeem tau txais los ntawm kev xaiv qhov tsim nyog nruab nrab, kho qhov amplitude thiab zaus ntawm kev vibration, tus nqi pub mis thiab qhov ntim ntawm qhov nruab nrab, thiab lwm yam.