Cov txheej txheem ntawm kev thov hmoov - ELECTROSTATIC SPRAYING
Electrostatic txau yog txoj kev siv dav tshaj plaws ntawm kev thov hmoov txheej cov ntaub ntawv. Nws txoj kev loj hlob yog nce ntawm tus nqi impressive. Tsim nyob rau hauv nruab nrab ntawm 60's, cov txheej txheem no yog qhov ua tau zoo tshaj plaws ntawm kev siv cov txheej txheem thiab ua tiav hauv lub sijhawm luv luv. Txawm li cas los xij, kev lees txais cov hmoov txheej hauv cov noobral tau pib qeeb heev hauv Teb Chaws Asmeskas. Nyob rau hauv cov teb chaws Europe, lub tswv yim electrostatic hmoov tshuaj tsuag tau txais kev nkag tau yooj yim dua, thiab cov thev naus laus zis tau txav mus nrawm dua li lwm qhov hauv ntiaj teb. Txawm li cas los xij, ntau qhov kev nce qib tau ua nyob rau hauv ob qho tib si hmoov cov ntaub ntawv thiab cov cuab yeej siv rau cov neeg tsim khoom. Cov no nce qib generally cuam tshuam cov teeb meem cuam tshuam nrog electrostatic hmoov txau txheej, nrog rau kev txhim kho kev ua haujlwm ntawm cov khoom siv. Yog li ntawd, muaj ntau yam ntawm electrostatic hmoov txau txheej txheej txheem muaj nyob rau niaj hnub no.
Txhawm rau siv cov khoom siv hmoov txheej nrog cov txheej txheem electrostatic hmoov tshuaj tsuag, tsib yam khoom siv yooj yim yog xav tau:
- Hmoov feeder chav tsev;
- Electrostatic hmoov tshuaj tsuag rab phom, lossis sib npaug sib npaug;
- Electrostatic voltage qhov chaw;
- Hmoov rov qab chav tsev;
- Txau lub rooj muag khoom
Muaj lwm yam khoom siv los txhim kho kev ua haujlwm ntawm cov khoom siv no. Hauv kev ua haujlwm ntawm lub tshuab electrostatic hmoov txau, hmoov yog siphoned, los yog pumped, los ntawm lub feeder unit los ntawm ib tug hmoov pub hose mus rau cov tshuaj tsuag phom (s) tshuaj tsuag phom coj cov hmoov mus rau ib feem nyob rau hauv daim ntawv ntawm ib tug diffused huab. Lub zog quab yuam yog muab ob qho tib si los ntawm huab cua uas thauj cov hmoov los ntawm lub feeder unit mus rau rab phom, thiab los ntawm electrostatic nqi imparted rau cov hmoov ntawm rab phom. Electrostatic voltage yog nkag mus rau rab phom txau los ntawm qhov chaw tsim los xa cov hluav taws xob siab, qis-amperage hluav taws xob mus rau ib qho hluav taws xob txuas nrog rab phom. Raws li cov diffused, electrostatically them hmoov huab nyob ze rau hauv av, ib qho hluav taws xob teb ntawm attraction yog tsim, kos cov hmoov hais rau ib feem thiab tsim ib txheej ntawm hmoov. Overspray-los yog hmoov tsis adhering rau ib feem-yog sau rau rov siv los yog pov tseg. Nyob rau hauv lub collector unit, hmoov yog sib cais los ntawm lub conveying airflow. Cov hmoov uas tau muab khaws cia yog cia li los yog siv manually rov qab mus rau lub feeder unit yuav tsum tau resprayed. Cua yog dhau los ntawm cov khoom siv lim tawm mus rau hauv huab cua huv si thiab tom qab ntawd dhau los ntawm qhov kawg, lossis qhov tseeb, lim rov qab rau hauv cov nroj tsuag ib puag ncig zoo li huab cua huv. Cov coated feem yog nqa los ntawm qhov chaw thov thiab raug tshav kub, uas ua rau ntws tawm thiab kho cov khoom siv hmoov.
Economic Advantage
Nrog electrostatic hmoov txau, txog li 99% ntawm cov hmoov overspray tuaj yeem rov qab tau thiab rov qab siv dua. Cov khoom poob uas tau ntsib nrog cov hmoov yog tsawg heev nyob rau hauv kev sib piv rau cov kua txheej txheej txheem.
Tsis tas li ntawd, nyob rau hauv feem ntau cov hmoov muab ib lub tsho tiv no tsis muaj khiav thiab sags ntawm qhov tiav. Thov a primer lub tsho tiv no ua ntej lub tsho tiav yog qhov tsis tsim nyog, txo lub sijhawm thiab kev ua haujlwm uas yuav tsum tau ua los ntawm cov txheej txheem ua kua multicoat.
Txo cov nqi roj hauv cov hmoov curing feem ntau tshwm sim los ntawm kev siv cov qhov cub me me, lub sij hawm luv ntawm qhov cub thiab, qee zaum, qhov cub kub qis dua. Tsis tas yuav ua kom sov lossis npau taws lub rooj zaum pleev xim rau huab cua vim huab cua rov qab mus rau qhov chaw cog qoob loo raws li huab cua huv.
Lwm yam kev txuag nqi, suav nrog cov nqi tu qis, tuaj yeem ua tiav nrog cov hmoov. Tsis tas yuav sib tov, rov qab, thiab pov tseg cov kuab tshuaj thaum txheej hmoov. Feem ntau, tsis muaj cov kuab tshuaj los yog tshuaj siv los ntxuav cov khoom siv hmoov los yog cov tshuaj tua kab mob. Vim huab cua thiab lub tshuab nqus tsev vacuum yog cov noobrally txhua yam uas yuav tsum tau ua rau kev ntxuav nrog cov hmoov, kev ua haujlwm thiab cov khoom siv tu kom txo tau thiab pov tseg cov xim tsis zoo sludge raug tshem tawm.
Ib feem loj ntawm cov kua coatings yog muaj qee zaum muaj kuab lom thiab flammable hnyav uas ploj hauv cov txheej txheem thov. Kev xa khoom xa tuaj, thiab kev tuav cov nqi ntawm cov kuab tshuaj yog ib txwm kim heev. Nrog cov hmoov, cov nqi cuam tshuam nrog cov cuab yeej tswj kev ua qias tuaj, lub sijhawm flash-off, thiab cov kuab tshuaj pov tseg yuav raug tshem tawm zoo.
Kev tshem tawm kev siv cov kuab tshuaj kuj tuaj yeem txo cov kev pov hwm hluav taws xob nrog rau cov nqi them rau kev tuav pov hwm kev pov hwm hluav taws. Thaum kawg tus nqi siv ib lab ib square feet ntawm zaj duab xis yog sib npaug rau, lossis qis dua, cov nqi ua kua txheej hauv feem ntau.
Yooj yim ntawm daim ntawv thov
Cov yam ntxwv ua tiav zoo ib yam thiab electrostatic "wraparound" pom nyob rau hauv cov ntawv thov tshuaj tsuag pab txo qhov xav tau rau cov neeg ua haujlwm txawj ntse. Tsis tas li ntawd, tsis muaj qhov sib npaug viscosity los tswj thaum txheej nrog hmoov. Cov ntaub ntawv hmoov tuaj "npaj tshuaj" los ntawm cov chaw tsim khoom. Tsis tas yuav flash-off lub sij hawm nrog hmoov. Qhov coated tuaj yeem thauj ncaj qha los ntawm thaj chaw tshuaj tsuag mus rau qhov cub kom kho. Kev tsis lees paub tus nqi tuaj yeem txo qis, raws li cov nqi koom nrog hauv kev rov ua dua qhov tsis lees paub. Khiav thiab sags feem ntau yog tshem tawm nrog cov txheej txheem hmoov txheej.
Cov txheej tsis txaus lossis tsis tsim nyog tuaj yeem raug tshuab tawm ntawm qhov (ua ntej cua sov) thiab rov ua dua. Qhov no tuaj yeem tshem tawm cov kev ua haujlwm thiab cov nqi koom nrog hauv stripping, rehandling, recoating, thiab recuring rejected qhov chaw. Cov neeg siv tau pom tias cov hmoov txheej txheej txheej yog yooj yim automated. Nws tuaj yeem siv cov phom tsis siv neeg txav, contouring mechanisms, robots, thiab chaw nres tsheb phom phom. Tag nrho cov sij hawm tsim khoom feem ntau tuaj yeem txo qis, lossis ntau lawm ntim ntau ntxiv, nrog cov hmoov txau txheej. Kev tshem tawm ntau cov kauj ruam uas yuav tsum tau ua nrog cov txheej txheem ua kua txheej txheem tuaj yeem ua rau txoj kab tiav zoo dua.