Mota cab electrophoresis kugadzira mutsara
Electrophoretic pendi inowanzobatanidza maitiro mana panguva imwe chete
1. Electrophoresis: pasi pechiito cheyakananga yazvino yemagetsi munda, yakanaka uye yakaipa inochaja colloidal particles kune yakaipa, yakanaka kutungamira mafambiro, inozivikanwawo sekushambira.
2. Electrolysis: iyo oxidation reduction reaction inoitwa pane electrode, asi iyo oxidation uye yekudzikisa chiitiko inoumbwa pane electrode.
3.Electrodeposition: Nekuda kwe electrophoresis, iyo inochajiswa colloidal particles yakatamira kune anode pedyo netemplate surface body yakabudiswa maerekitironi, uye insoluble deposition, precipitation phenomenon, panguva iyi firimu repende rakaumbwa.
4. Electroosmosis: pasi pekuita kwemunda wemagetsi, chikamu chakasimba hachifambi, asi chikamu chemvura chinofambisa chiitiko.Electroosmosis inokonzera kuti mvura iri mufirimu yependi ibudiswe zvishoma nezvishoma kune kunze kwefirimu, uye pakupedzisira inoumba firimu rependi ine dense ine mvura yakadzika kwazvo uye inopikisa yakakwirira, iyo isingakwanisi kupfuura ikozvino.
5. Red iron oxide epoxy electrophoretic pendi, semuenzaniso: pendi ye electrophoretic imodified epoxy resin, butanol uye ethanol amine, talcum powder, red iron oxide material kuumbwa, electrophoresis pendi inosanganiswa nemvura yakasvibiswa, pasi pekuita kwedc munda, iyo yakaparadzaniswa. mune zvakanaka chaji cationic uye anionic, zvakaipa chaji uye akateedzana yakaoma colloidal chemistry, yemuviri chemistry electrochemical process.
Electrophoretic coating nzira uye hunyanzvi
1. Electrophoretic coating of general metal surface, maitiro ayo ndee: pre-cheneswa → on-line → degreasing → kugeza → kubvisa ngura → kugeza → neutralization → kugeza → phosphating → kugeza → passivation → electrophoretic coating → mu-tangi kuchenesa → Ultra-filtration washing → kuomesa → pasina Indaneti.
2. Iyo substrate uye pretreatment yejasi ine simba guru pane electrophoretic coating film.Majecha anowanzo shandisa kuputika kwejecha kana kupfura kubvisa ngura, neshinda yedonje kubvisa huruva inoyangarara pamusoro penzvimbo yebasa, ne80# ~ 120# jecha bepa kubvisa simbi yakasara uye mamwe mapeji pamusoro.Pamusoro pesimbi inobatwa nekubviswa kwemafuta uye kubvisa ngura.Kana izvo zvinodikanwa zvepasi zvanyanya, phosphating uye passivation pamusoro pekurapa inogona kuitwa.Ferrous metal workpiece inofanira kunge iri phosphating isati yasvika anodic electrophoresis, kana zvisina kudaro iyo corrosion resistance yefirimu repende haina kunaka.Phosphating kurapwa, kazhinji sarudza zinc munyu phosphating firimu, ukobvu hunosvika 1 ~ 2μm, inoda yakanaka uye yakafanana crystallization yephosphating firimu.
3. Mune iyo filtration system, iyo yakajairwa kushandiswa kwesefa, sefa ye mesh bag chimiro, aperture ye25 ~ 75μm.Electrophoretic pendi inosefa kuburikidza nepombi yakatwasuka kuenda kune sefa.Tichifunga nezvezvinhu zvakaita sekutsiva nguva uye mhando yefirimu, bhegi resefa rine aperture 50μm ndiro rakanakisa.Haikwanise kuzadzisa zvinodiwa zvemhando yefirimu, asi zvakare kugadzirisa dambudziko rekuvharika kwebhegi resefa.
4. Kutenderera kwehuwandu hwe electrophoretic coating system inokanganisa zvakananga kugadzikana kwemvura yekugezesa uye kunaka kwefirimu repende.Nekuwedzera kwekutenderera, kunaya uye bubble mutangi inoderera.Zvisinei, kukwegura kwetangi kunowedzera, kushandiswa kwesimba kunowedzera, uye kugadzikana kwetangi kunowedzera kuipa.Izvo zvakanaka kudzora nhamba yekutenderera kwetangi mvura 6 ~ 8 nguva / h, kwete chete kuve nechokwadi chemhando yependi firimu, asiwo kuve nechokwadi chekushanda kwakagadzikana kwetangi mvura.
5.Nekuwedzera kwenguva yekugadzira, iyo impedance yeanode diaphragm ichawedzera, uye inoshanda inoshanda voltage inoderera.Naizvozvo, maererano nekurasikirwa kwevoltage mukugadzira, vhezheni yekushanda yemagetsi inofanira kuwedzerwa zvishoma nezvishoma kutsiva kudonha kwevoltage yeanode diaphragm.
6.Ultrafiltration system inodzora kusungirirwa kweiyoni yekusachena inounzwa mukati meiyo workpiece kuti ive nechokwadi chekuputira mhando.Mukushanda kwegadziriro iyi, kutariswa kunofanira kubhadharwa kuenderera mberi kwekushanda kwegadziriro mushure mekushanda, kusununguka kushanda kunorambidzwa zvakasimba kudzivirira kuoma kwe ultrafiltration membrane.Iyo yakaomeswa resin uye pigment inonamatira kune iyo ultrafiltration membrane uye haigone kunyatsocheneswa, iyo inozokanganisa zvakanyanya kupenya uye hupenyu hwebasa hweiyo ultrafiltration membrane.Kuyerera kwemvura ye ultrafiltration membrane inodzikira nenguva yekumhanya, uye inofanirwa kucheneswa kamwe chete kwemazuva makumi matatu kusvika makumi mana kuitira kuti ive nechokwadi chemvura yeultrafiltration inodiwa pakudonha nekuwacha.
7. Electrophoretic coating method inokodzera nhamba huru yemitsara yekugadzira.Iyo yekutsiviwa kwetangi ye electrophoresis inofanira kunge isingasviki mwedzi mitatu.Kutora tambo yekugadzira electrophoresis ine gore negore inobuda mazana matatu ezviuru zvesimbi zvindori semuenzaniso, zvakakosha kwazvo kubata nesainzi tangi mvura.Yakasiyana-siyana ma parameter eiyo tangi mvura inoyedzwa nguva dzose, uye tangi mvura inogadziriswa uye inotsiviwa zvichienderana nemhedzisiro yebvunzo.Kazhinji, maparamendi emvura yetangi anoyerwa pane inotevera frequency: PH kukosha, yakasimba yemukati uye conductivity ye electrophoresis mhinduro, ultrafiltration uye ultrafiltration yekuchenesa mhinduro, cathode (anode) mvura, inotenderera yekuwachisa mhinduro uye deionized yekuchenesa mhinduro kamwe pazuva;Face base ratio, organic solvent zvemukati, marabhoritari diki tangi bvunzo kaviri pasvondo.
8. Hunhu hwekutarisira firimu repende, kazhinji hunofanirwa kutarisa kufanana uye kukora kwefirimu, chitarisiko hachifanirwe kunge chine pinhole, kuyerera, orange peel, wrinkles nezvimwe zviitiko, gara uchitarisa kunamatira kwefirimu, corrosion resistance uye zvimwe zvemuviri uye. zviratidzo zvemakemikari.Yekutenderera kutenderera zvinoenderana nemugadziri wekutarisa zviyero, kazhinji mijenya yega yega inofanirwa kuyedzwa.
Iko kushandiswa kwe electrophoretic coating uye pendi yemvura inoratidza kufambira mberi kukuru muindasitiri yekupfeka.
Electrophoretic coating kuvaka kumhanyisa, mechanization uye otomatiki inogona kuitika, kuenderera kushanda, kuderedza kushanda nesimba, yunifomu pendi firimu, kunamatira kwakasimba, nekuti iyo general coating nzira haisi nyore kuputira kana kuvharwa zvakashata zvikamu, senge mbabvu dzataurwa pamusoro apa, welds. uye dzimwe nzvimbo dzinogona kuwana kunyange, yakatsetseka pendi firimu.Pendi yekushandiswa kwependi inosvika 90% -95%, nekuti pendi ye electrophoretic ndeye water sechinhu chinonyungudutsa, chisingabatike, chisina chepfu, chiri nyore kushanda uye zvimwe zvakanakira.Electrophoretic drying pendi firimu, ine yakanakisa adhesion, yayo kuramba ngura, corrosion resistance, mamiriro ekunze uye zvimwe zvivakwa zviri nani pane yakajairika pendi uye yakajairika nzira yekuvaka.
Inoshandiswa kune ese marudzi eworkpiece pendi, mamwe mamodheru anogona kugadzirwa.
Zvigadzirwa zvinoenderana
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Spray type pretreatment production line
Coating pretreatment inosanganisira degreasing (degreasing), kubvisa ngura, phosphating zvikamu zvitatu.Phosphating ndiyo yepakati link, degreasing uye kubvisa ngura ndiyo nzira yekugadzirira isati yaita phosphating, saka mukuita kwekugadzira, isu hatifanirwe kungotora phosphating basa sekutarisa, asi zvakare kutanga kubva kune zvinodiwa zvephosphating mhando, kuita basa rakanaka mukuwedzera kune. mafuta uye kubvisa ngura, kunyanya teerera kune kuwirirana pakati pavo....
