Electrostatic txau txoj kev tuaj yeem muab faib ua ob hom: ntshiab electrostatic atomization thiab electrostatic atomization nrog lub zog pab.
1) Ntshiab electrostatic atomization
Lub rotary - tswb electrostatic spray gun yog tus piv txwv ntawm tus qauv no. Rotary spray guns muaj cov qauv yooj yim, tiv taus cov clogging, thiab yooj yim los ntxuav. Raws li lawv cia siab rau txhua yam centrifugal quab yuam rau atomization, cov conductivity yuav tsum tau rau coatings thiab cov kuab tshuaj yog tsis tshua muaj (txawm hais tias zoo conductivity yog tseem muaj txiaj ntsig). Lawv muab cov cheeb tsam uas muaj txiaj ntsig zoo thiab kev tso nyiaj siab, ua kom cov txheej txheej zoo sib xws; Lub resulting atomized txheej yog zoo, yielding ib tug ca thiab du nto tiav. Txoj kev no yog tshwj xeeb tshaj yog haum rau workpieces nrog cov duab yooj yim.
Nws cov drawbacks muaj xws li tsim ib tug "center qhov" (ib tug hollow center) nyob rau hauv cov tshuaj tsuag qauv, ua rau nws nyuaj rau coated complex duab uniformly los yog mus txog rau recessed cheeb tsam. Tsis tas li ntawd, vim cov xim sib txawv muaj cov yam ntxwv sib txawv, xim tsis sib xws yuav tshwm sim thaum txau cov txheej txheem nrog ntau cov xim.
2) Electrostatic atomization nrog lub zog pab
Nyob ntawm seb hom kev pabcuam lub zog siv, pawg no tau muab faib ntxiv rau hauv huab cua atomization thiab hydraulic atomization txoj kev. Cyclone- hom tshuaj tsuag phom thiab cov phom phom electrostatic siv ob qho tib si siv cua atomization; lawv atomize lub txheej los ntawm kev sib xyaw ua ke ntawm compressed cua thiab electrostatic rog, ua rau lawv muaj peev xwm txheej cov khoom nrog complex duab los yog loj deg cheeb tsam. Peb lub serpentine nozzles ntawm cyclone- hom tshuaj tsuag phom yog kho tau, tso cai rau kev hloov kho yooj yim ntawm cov tshuaj tsuag txoj kab uas hla; qhov no pab txo lossis txawm tias tshem tawm qhov chaw nruab nrab - qhov tshwm sim, ua kom yooj yim txheej txheej ntau dua. Txawm li cas los xij, txij li cov kuab tshuaj evaporate sai heev thaum huab cua atomization- feem ntau ua rau muaj qhov tsis xws luag xws li "txiv kab ntxwv tev"- cov txheej txheem txheej txheem yuav tsum nruj: tsis muaj viscosity ua ke nrog cov ntsiab lus siab, muaj zog zais, qeeb hnyav evaporation tus nqi, thiab cov khoom ntws zoo heev. Tsis tas li ntawd, lub siab -tsav airflow thaum lub sij hawm atomization tuaj yeem txhawb nqa cov xim pleev xim tshaj qhov ntau ntawm electrostatic attraction; Cov khoom no tsis tuaj yeem tso rau ntawm qhov chaw ua haujlwm, ua rau cov txheej txheem ntau ntxiv.
Hydraulic atomization muaj kev sib xyaw ua ke ntawm siab -siab airless spraying thiab electrostatic spraying khoom. Nws siv lub siab los yuam cov kua txheej mus rau qhov siab - qib siab ua ntej ejecting nws los ntawm lub me me nozzle orifice; Thaum tawm mus rau hauv qhov chaw, qhov siab - txheej txheej tam sim ntawd nthuav dav sai thiab atomization.
Piv nrog rau huab cua atomization, hydraulic atomization muaj superior atomization zoo, cov zis ntau dua, thiab ntau dua txheej efficiency, thaum cov kev xav tau rau txheej txheej nws tus kheej tseem zoo ib yam li cov huab cua atomization.
