Painting process system inoshandiswa
01
Iyo yakajairwa coating process system inogona kukamurwa zvinoenderana nejasi, maviri ekuvhara system (primer + top jasi);matatu ekuputira system (primer + yepakati coating + top jasi kana simbi flash pendi / kuvhara mwenje varnish);ina yekuputira system (primer + yepakati coating + top jasi + inovhara mwenje varnish, inokodzera mota dzeumbozha dzine zvakakwirira zvekupfeka zvinodiwa).
Kazhinji, inonyanyozivikanwa ndeye matatu-yekuputira sisitimu, izvo zvekushongedza zvinodikanwa zvepamusoro-mota muviri, bhazi uye yevashanyi mota yevashanyi, rori cab inowanzo shandisa matatu-coating system.
Zvinoenderana nemamiriro ekuomesa, inogona kukamurwa kuita yekuomesa system uye yekuzviomesa system.Iyo yekuomesa sisitimu yakakodzera kugadzirwa kwemutsara wekusangana;iyo yekuzviomesa-yakakodzera sisitimu diki kugadzirwa kwemotokari pendi uye hombe yakakosha kupenda muviri wemotokari.
Iyo general coating process yebhazi hombe uye station wagon body ndeiyi inotevera:
Pre-kurapwa (kubvisa mafuta, kubvisa ngura, kuchenesa, kugadzirisa tafura) phosphating kuchenesa dry primer yakaoma putty coarse scraping (yakaoma, kugaya, kupukuta) putty yakanaka scraping (yakaoma, kugaya, pukuta) mujasi (yakaoma, kugaya, pukuta) kupfeka (kukurumidza kuomesa, kuoma, kugaya, kupukuta) pendi yepamusoro (yakaoma kana kuvhara) kuparadzaniswa kwemavara (kuomesa)
Front pamusoro pekurapa maitiro
02
Kuti uwane kupfekedzwa kwemhando yepamusoro, iyo pretreatment yekuputira pamusoro pamberi pekupenda inonzi iyo pendi surface treatment.Iyo yepamberi yekurapa kwepamusoro ndiyo hwaro hwekuita kwekuputira, iyo ine simba rakakura pamhando yejasi rese, kunyanya kusanganisira kuchenesa kwepamusoro (kubvisa mafuta, kubvisa ngura, kubvisa guruva, nezvimwewo) uye kurapwa kwephosphating.
Pane nzira dzakawanda dzekuchenesa pamusoro:
(1) Geza nelye inopisa wokwesha neorganic solvent kubvisa mafuta;polish ne 320-400 sandpaper pamusoro peFRP, uye wobva wachenesa ne organic solvent kubvisa firimu rinobvisa;yero ngura pamusoro pemuviri wemotokari ichacheneswa nephosphoric acid kuti ive nechokwadi chekuti iyo yekupfeka ine yakanakisa corrosion kuramba uye kunamatira kwakanaka kumusoro kwejasi.
(2) Akasiyana-siyana emakemikari kurapwa kwenzvimbo yakacheneswa yezvikamu zvesimbi zvakavharwa kuti uvandudze kunamatira uye kusagadzikana kwemarara kwefirimu repende.Yakakosha kemikari kurapwa kwesimbi plate zvikamu kuvandudza musanganiswa simba rependi firimu uye substrate.
(3) Shandisa nzira dzemakina kuti ubvise zvikanganiso zvekugadzira zvinhu zvekupfeka uye kushata kunodiwa kugadzira firimu rekuvhara.Kurapa kwePhosphate kune jekiseni rakabatanidzwa uye kunyudzwa kwakabatana.Mutete firimu zinc munyu nekukurumidza phospholation kurapwa, phospholated membrane misa ndeye 1-3g / m, membrane iri 1-2 μ m gobvu, saizi yekristaro ndeye 1-10 μ m, inogona kuve phospholated nekudzika kwakadzika 25-35 ℃ kana yepakati tembiricha 50 -70 ℃.
Application
03
1. Spray primer
Primer coating ndiyo hwaro hwekupfeka kwese, uye iyo yekusanganisa simba uye kudzivirira kwekudzivirira kwemotokari yekupfeka uye simbi inonyanya kuwanikwa nayo.Primer inofanira kusarudzwa ine simba rakasimba rekudzivirira (munyu pfapfaidzo 500h), kunamatira kwakasimba ne substrate (inogona kuenderana nemhando dzakasiyana-siyana dze substrate zvinhu panguva imwe chete), kusanganiswa kwakanaka nepakati pekuvhara kana topcoat, yakanaka yekupfekedza mechanical properties (impact 50cm, kuoma 1mm, kuomarara 0.5) kupfekedza sekutanga.
Kushandisa mhepo kupfapfaidza nzira (inogonawo kusarudza high pressure pasina gasi spraying) spraying priming, anogona kushandisa kunyorova kubata nyoro nzira kunyange kupfapfaidza nzira mbiri, kuvaka viscosity 20-30s, imwe neimwe interval of 5-10min, pashure kumwaya kupenya 5-10min muchoto. , primer yakaoma firimu ukobvu 40-50 μ m.
2. Scratch putty
Chinangwa chekukwenya putty ndechekubvisa kusarongeka kwezvinhu zvekupfeka.
Puputty inofanira kukweshwa pane yakaoma primer layer, ukobvu hwejasi kazhinji haupfuure 0.5mm, iyo nyowani hombe yekukwenya putty nzira inofanira kushandiswa.Iyi nzira iri nyore kuumba nzvimbo yakakura yeputty, pasi pechikonzero chekusakanganisa maitiro ekugadzira, zvinokurudzirwa kuti imwe neimwe yekurasa putty inofanira kuomeswa uye kupeperetswa furati, uye ipapo kukwenya rinotevera putty, putty kukwenya 2-3 nguva. yakanaka, kutanga kukorobha kwakakora uyezve kukwesha kwakaonda, kuitira kuti uwedzere kusimba kweiyo putty layer uye kuwedzera kunatsiridza flatness.
Uchishandisa nzira yemuchina wekukuya putty, sandpaper kusarudzwa kwe180-240 mesh.
3. Isa mupfapfaidzo
Uchishandisa static yekupfapfaidza kana mhepo yekupfapfaidza nzira, kupfapfaidza mujasi, inogona kuvandudza dombo rekupotera, kunatsiridza kunamatira neprimer, kunatsiridza kupfava uye kutsvedzerera kwenzvimbo yakavharwa, kuvandudza kuzara uye kutsva kuratidzwa kwependi yepamusoro. .
Medium coating general wet wet inopfuurira kupfapfaidza maviri, kuvaka viscosity iri 18-24s, imwe neimwe interval ye 5-10min, inopenya 5-10min muchoto, ukobvu hwepakati pekuvhara yakaoma firimu ukobvu ndeye 40-50 μ m.
4. Pfaya pendi
Uchishandisa static yekupfapfaidza kana mhepo yekupfapfaidza nzira, kupfapfaidza pendi yepamusoro yemotokari, inogona kuumba kuramba kwemamiriro ekunze, kuratidzwa kutsva uye kupenya kwefirimu repende rakanaka.
Nekuda kwehupamhi hwemakina ekuvaka, zvirevo, huremu hwemuchina wese, zvikamu zvakakura, kazhinji kushandisa nzira yekupfapfaidza yekupenda.
Zvishandiso zvekupfapfaidza zvinosanganisira pfuti yekupfapfaidza mweya, pfuti yekupfapfaidza isina mhepo, pfuti yemhepo yekubatsira uye pfuti inotakurika.Mhepo yekupfapfaidza pfuti yekupfapfaidza pfuti yemhepo yakadzikira (inenge 30%), iyo yakakwira pfuti yekupfapfaidza pfuti inorasa pendi, hunhu hwakajairika hwekusvibiswa kwezvakatipoteredza hwakanyanya, saka zvave uye zviri kutsiviwa. mhepo yakabatsira pfapfaidzo pfuti uye inotakurika electrostatic jekiseni pfuti.
Semuyenzaniso, kambani yekutanga pasi rose yemichina yekuvaka ——— Kambani yeCaterpillar American inoshandisa pfuti yekupfapfaidza inobairwa nemhepo pakupfapfaidza, uye chivharo uye zvimwe zvikamu zvitete zvekuvhara ndiro zviri kushandisa pfuti inotakurika.Zvishandiso zvekupendi zvemichina yekuvaka kazhinji zvinotora iyo yakanyanya kukwirira mvura spin yekupfapfaidza pendi imba.
Zvidiki uye zvepakati zvikamu zvinogona zvakare kushandisa mvura keteni pendi kamuri kana pasina pombi yekupendi imba, yekutanga ine hunyanzvi hwekuita, iyo yekupedzisira ine hupfumi, iri nyore uye inoshanda.Nekuda kwehukuru hwekupisa kwehuinjiniya hwese michina uye zvikamu, kuomeswa kweiyo anti-rust coating kazhinji kunotora nzira yekuomesa yekubheka yunifomu uye inopisa mweya convection.Heat sosi inogona kuchinjirwa kumamiriro enzvimbo, sarudza chiutsi, magetsi, mwenje diziri oiri, gasi rechisikigo uye liquefied petroleum gasi.
Automobile coating process ine hunhu hwayo uye nekusimbisa zvinoenderana nemhando dzakasiyana dzemotokari:
(1) Chikamu chikuru chekuputira cherori ndiyo yekumberi cab ine yakanyanya kupfekedza zvinodiwa;zvimwe zvikamu, sengoro uye furemu, zvakaderera pane kombi.
(2) Pane misiyano mikuru pakati pekupendwa kwebhazi nerori.Muviri webhazi unosanganisira girder, skeleton, mukati memotokari uye kunze kwemuviri, pakati peiyo kunze kwemuviri yakakwirira.Iyo yekunze yemuviri wemotokari haingodi kuchengetedzwa kwakanaka uye kushongedzwa, asiwo ine nzvimbo yakakura yekupfapfaidza, ndege zhinji, anopfuura maviri mavara, uye dzimwe nguva ribhoni yemotokari.Nokudaro, nguva yekuvaka yakareba kudarika rori, zvinodiwa zvekuvaka zvakakwirira kudarika rori, uye nzira yekuvaka yakaoma kudarika rori.
(3) Mota uye diki chiteshi ngoro, ingave munzvimbo yekushongedza kana yepasi dziviriro dzakakwirira kupfuura mabhazi makuru uye marori zvinodiwa.Kufukidzwa kwayo kwepamusoro ndeyeyekutanga nhanho yekushongedza kwayo, ine chitarisiko chakanaka, inopenya segirazi kana kuti yakatsetseka pamusoro, isina tsvina yakanaka, mabrasions, kuputika, wrinkles, kupupa uye kukanganisa kunoonekwa, uye inofanirwa kunge iine simba rakakwana remagetsi.
Iyo yepasi yekuputira ndeye yakanakisa yekudzivirira layer, iyo inofanirwa kunge iine yakanakisa ngura uye marara kuramba uye kunamatira kwakasimba;chikamu kana yese putty ine yakanaka adhesion uye yakakwirira mechani simba haizoiti ngura kana kudonha kwemakore akati wandei.
Nguva yekutumira: Jan-03-2023
