Txau hmoov txheej yog ib txoj kev kho saum npoo uas muaj cov tshuaj tsuag cov hmoov yas rau qhov chaw. Nws kuj yog feem ntau hu ua electrostatic hmoov txheej, thiab nws cov tshuab ua tau dav siv thoob ntiaj teb los ua cov txheej txheem zoo nkauj rau kev kho hlau saum npoo txij li xyoo 1980s. Piv nrog rau kev kho cov xim zoo tib yam, cov cuab yeej no muaj qhov zoo xws li cov txheej txheem siab heev, kev siv hluav taws xob zoo, kev nyab xeeb, kev ntseeg tau, thiab cov xim vibrant. Yog li ntawd, nws yog feem ntau siv rau hauv kev lag luam teeb pom kev zoo thiab tsev kho kom zoo nkauj. Nws txoj hauv kev ua haujlwm suav nrog them cov hmoov yas los ntawm cov khoom siv hluav taws xob hluav taws xob siab -voltage electrostatic. Nyob rau hauv lub zog ntawm hluav taws xob teb, cov xim yog txau rau ntawm qhov chaw ntawm lub workpiece, thiab cov hmoov yog tusyees adsorbed rau ntawm qhov chaw, ua ib tug hmoov txheej. Cov hmoov txheej yog ces leveled thiab kho tom qab siab -kub ci, thiab cov yas hais yaj mus rau hauv ib tug ntom kawg tiv thaiv txheej nrog ntau yam teebmeem, nrees adhering rau saum npoo ntawm lub workpiece. Cov tshuaj tsuag hmoov txheej cov khoom siv feem ntau yog siv rau cov khoom siv sab hauv tsev, nrog lub tiaj lossis matte tiav. Txau cov hmoov txheej feem ntau suav nrog acrylic hmoov thiab polyester hmoov.
Txau hmoov txheej hais txog cov txheej txheem kev kho mob rau cov khoom siv hlau. Powder txheej, ib yam tshiab ntawm cov kuab tshuaj- dawb 100% hmoov txheej, muab faib ua ob pawg loj: thermoplastic hmoov txheej thiab thermosetting hmoov txheej. Cov txheej yog npaj los ntawm kev sib xyaw tshwj xeeb tsim cov resins, fillers, curing agents, thiab lwm yam additives hauv ib qho kev faib ua feem, thiab tom qab ntawd los ntawm cov txheej txheem xws li kub extrusion thiab crushing thiab tshuaj ntsuam. Lawv ruaj khov nyob rau hauv chav tsev kub, thiab tom qab electrostatic spraying los yog fluidized txaj dip txheej, lawv yog rhuab thiab ci kom yaj thiab solidify, tsim ib tug ca, glossy, tas mus li txheej zaj duab xis rau kho kom zoo nkauj thiab corrosion tiv thaiv lub hom phiaj. Nws yog dav siv nyob rau hauv cov khaub ncaws zaub props, txee, txee, workbench, logistics cia thiab tsheb thauj mus los, thiab lwm yam.
Qhov nyuaj thiab kev ua haujlwm tseem ceeb kom ua tiav ultrafine hmoov ntawm cov hmoov txheej yog nyob rau hauv kev daws cov teeb meem fluidization ntawm ultrafine hmoov hais. Qhov nruab nrab qhov loj me ntawm cov pa roj pleev xim yog 30-50 microns, thiab cov hmoov hmoov ntawm qhov loj me no muaj cov khoom ua kom zoo, uas txhais tau hais tias lawv tuaj yeem sib txawv thiab raug tshem tawm hauv airflow, ua kom cov hmoov electrostatic hmoov txheej. Txawm li cas los xij, thaum qhov loj me me thiab hloov mus rau hauv cov hmoov ultrafine (nrog qhov nruab nrab particle loj tsawg dua 25 microns), qhov loj ntawm cov hmoov txo qis heev thaum thaj chaw saum npoo nce exponentially, zoo heev ua rau qhov tseeb adsorption quab yuam ntawm hmoov hais. Qhov no ua rau lub siab nyiam ntawm ultrafine hmoov hais rau clump thiab agglomerate, ua rau cov dej tsis zoo. Cov no yog cov khoom ntuj tsim ntawm ultrafine hmoov.
