Inkqubo yokupeyinta esetyenziswayo
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Inkqubo yokwaleka eqhelekileyo inokwahlulwa ngokwendlela yokwaleka, inkqubo yokugquma ezimbini (i-primer + topcoat); inkqubo yokwaleka ezintathu (i-primer + i-medium coating + idyasi ephezulu okanye i-metal flash paint / cover ivarnish); inkqubo yokugquma ezine (i-primer + i-medium coating + idyasi ephezulu + ikhava ivanishi yokukhanya, ilungele iimoto zodidi oluphezulu ezineemfuno zokwaleka).
Ngokubanzi, eyona ixhaphakileyo yinkqubo yokugquma ezintathu, iimfuno zokuhombisa umzimba wemoto ephezulu, ibhasi kunye nomzimba wemoto yabakhenkethi, ikhabhu yelori ngokuqhelekileyo isebenzisa inkqubo yokwambathisa emithathu.
Ngokweemeko zokumisa, inokwahlulwa ibe yinkqubo yokomisa kunye nenkqubo yokuzomisa. Inkqubo yokomisa ifanelekile kwimveliso yomgca wendibano enkulu; inkqubo yokuzomisa ilungele ukuveliswa kwebhetshi encinci yepeyinti yemoto kunye nepeyinti enkulu ekhethekileyo yomzimba wemoto.
Inkqubo yokwaleka ngokubanzi yebhasi enkulu kunye nomzimba wenqwelo yesitishi yile ilandelayo:
Unyango lwangaphambili (ukususwa kweoli, ukususwa kwe-rust, ukucoca, ukulungiswa kwetafile) ukucoca i-phosphating yokucoca i-primer eyomileyo i-putty coarse scraping (eyomileyo, ukugaya, ukusula) i-putty fine scraping (eyomileyo, yokugaya, yosula) kwi-coating (eyomileyo, yokugaya, yosula) ukunxibisa (ukoma ngokukhawuleza, ukomisa, ukucola, ukusula) ipeyinti ephezulu (yomileyo okanye igquma) ukwahlula umbala (ukomisa)
Inkqubo yonyango lwangaphambili
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Ukuze ufumane i-coat yomgangatho ophezulu, ukulungiswa kwangaphambili kwendawo yokugubungela ngaphambi kokupeyinta kubizwa ngokuba yipeyinti yonyango. Unyango lwangaphambili lwangaphambili lusisiseko senkqubo yokugquma, enempembelelo enkulu kumgangatho wengubo yonke, ngokukodwa kubandakanywa ukucocwa kwendawo (ukususwa kweoli, ukususwa kwe-rust, ukususwa kothuli, njl.) kunye nonyango lwe-phosphating.
Kukho iindlela ezininzi zokucoca umphezulu:
(1) Coca nge-lye eshushu kwaye ukhuhle nge-solvent ephilayo ukususa ioli; ipolishi nge-sandpaper ye-320-400 kumphezulu we-FRP, kwaye emva koko uhlambulule nge-solvent ye-organic ukususa ifilimu; umhlwa otyheli kumphezulu womzimba wemoto uya kucocwa nge-asidi ye-phosphoric ukuqinisekisa ukuba i-coating inokumelana ne-corrosion egqwesileyo kunye nokubambelela kakuhle kumphezulu we-coating.
(2) Ukunyangwa kweekhemikhali ezahlukeneyo zomgangatho ocociweyo weendawo zetsimbi ezigqunyiweyo ukuphucula ukunamathela kunye nokumelana nokubola kwefilimu yepeyinti. Unyango olukhethekileyo lweekhemikhali zeengxenye zeplate yensimbi ukuphucula amandla okudibanisa ifilimu yepeyinti kunye ne-substrate.
(3) Sebenzisa iindlela zoomatshini ukususa iziphene zomatshini wezinto zokugquma kunye noburhabaxa obufunekayo ukwenza ifilimu yokugquma. Unyango lwe-phosphate lunenaliti edibeneyo kunye nokuntywiliselwa okudibeneyo. Thin film zinc ityuwa ngokukhawuleza phospholation unyango, phospholated inwebu ubunzima 1-3g / m, inwebu 1-2 μ m ubukhulu, ubungakanani crystal yi 1-10 μ m, ingaba phospholated ngobushushu obuphantsi 25-35℃ okanye ubushushu obuphakathi 50 -70℃.
Aisicelo
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1. Tshaza iprimer
I-Primer yokugqoka isiseko sengubo yonke, kwaye amandla okudibanisa kunye nokuthintela ukubola kweenqwelo zemoto kunye nesinyithi zifezekiswa yiyo. I-Primer kufuneka ikhethwe ngokuxhathisa okuqinileyo kwe-rust (ityuwa yokutshiza i-500h), ukunamathela okuqinileyo kunye ne-substrate (iyakwazi ukuziqhelanisa neentlobo zezixhobo ze-substrate ngexesha elifanayo), ukudibanisa okulungileyo kunye nokwaleka okuphakathi okanye i-topcoat, i-coat mechanical properties (impembelelo ye-50cm) ukuqina 1mm, ubunzima 0.5) ukutyabeka njenge-primer.
Ukusebenzisa indlela yokutshiza umoya (unokukhetha uxinzelelo oluphezulu ngaphandle kokutshiza ngegesi) ukutshiza i-priming, unokusebenzisa indlela emanzi yokuchukumisa emanzi nokuba utshize iziteshi ezimbini, ukwakhiwa kwe-viscosity 20-30s, ikhefu ngalinye le-5-10min, emva kokutshiza ukukhanya kwe-5-10min kwi-oven. , i-primer eyomileyo yefilimu ubukhulu be-40-50 μ m.
2. Scratch putty
Injongo yokukrazula i-putty kukuphelisa ukungahambi kakuhle kwezinto zokugqoka.
I-puputty kufuneka ikhuhlwe kuluhlu lwe-primer eyomileyo, ubukhulu bengubo ngokuqhelekileyo abudluli kwi-0.5mm, indlela entsha yokukrazula i-putty kufuneka isetyenziswe. Le ndlela ilula ukwenza indawo enkulu ye-putty, phantsi kwesiseko sokungachaphazeli inkqubo yemveliso, kucetywa ukuba yonke i-putty yokukrazula kufuneka yomiswe kwaye igudiswe caba, kwaye ikhuhla i-putty elandelayo, i-putty ukukrazula amaxesha angama-2-3. Kuhle, kuqala ukukhuhla okutyebileyo kwaye emva koko ukukhuhla okubhityileyo, ukuze kwandiswe amandla omaleko weputty kunye nokuphucula ngakumbi ukucaba.
Ukusebenzisa indlela yomshini wokugaya i-putty, ukhetho lwe-sandpaper ye-180-240 mesh.
3. Faka kwisitshizi
Ukusebenzisa i-static yokutshiza okanye indlela yokutshiza umoya, ukutshiza kwi-coating, kunokuphucula ukuxhathisa ilitye lokugquma, ukuphucula ukunamathela kunye ne-primer, ukuphucula ukucaca kunye nokugudiswa kwendawo edibeneyo, ukuphucula ukugcwala kunye nokubonakaliswa okutsha kwepeyinti ephezulu. .
Medium ukutyabeka jikelele emanzi emanzi eqhubekayo ukutshiza ezimbini, viscosity yokwakha yi-18-24s, ikhefu ngalinye 5-10min, flash 5-10min kwi-oveni, ubukhulu becala eliphakathi ukutyabeka owomileyo ubukhulu ifilimu yi 40-50 μ m.
4. Tshaza ipeyinti
Ukusebenzisa ukutshiza okumileyo okanye indlela yokutshiza komoya, ukutshiza ipeyinti ephezulu yemoto, kunokwenza ukumelana nemozulu, ukubonakaliswa okutsha kunye nokukhazimla kwefilimu yepeyinti egqwesileyo.
Ngenxa yoluhlu olubanzi loomatshini bokwakha, iinkcukacha, ubunzima bomatshini wonke, iindawo ezinkulu, ngokubanzi zisebenzisa indlela yokutshiza yokupeyinta.
Izixhobo zokutshiza ziquka umpu wokutshiza womoya, umpu wokutshiza ongenamoya woxinzelelo oluphezulu, umpu wokutshiza oncedisayo womoya kunye nompu ophathwayo wokutshiza ongatshintshiyo. Umpu wokutshiza umpu womoya uphantsi (malunga ne-30%), umpu wokutshiza womoya woxinzelelo oluphezulu uyonakalisa ipeyinti, uphawu oluqhelekileyo lokungcoliseka kwendalo lubi kakhulu, ngoko luye lwatshintshwa. Umpu oncedisayo womoya kunye nompu ophathwayo wenaliti ye-electrostatic.
Umzekelo, inkampani yokuqala yoomatshini bokwakha ehlabathini ——— Inkampani yaseCaterpillar yaseMelika isebenzisa umpu wokutshiza oncedwa ngumoya ukutshiza, kwaye ihood kunye nezinye iindawo ezigqunywe yipleyiti ebhityileyo zisebenzisa umpu wokutshiza oshukumayo. Izixhobo zokupeyinta koomatshini bokwakha ngokuqhelekileyo zamkela igumbi eliphambili lokupeyinta lokutshiza lamanzi.
Amacandelo amancinci naphakathi angasebenzisa igumbi lokupeyinta ikhethini lamanzi okanye akukho gumbi lokupeyinta impompo, yangaphambili inentsebenzo ephucukileyo, le yokugqibela inoqoqosho, ifanelekile kwaye iyasebenza. Ngenxa yesakhono sobushushu esikhulu kubo bonke oomatshini bobunjineli kunye neenxalenye, ukomiswa kokwalekwa kwayo okuchasene nomhlwa ngokubanzi kwamkela indlela yokomisa yokubhaka okufanayo kunye nokuhanjiswa komoya oshushu. Umthombo wokushisa unokulungelelaniswa neemeko zendawo, khetha umphunga, umbane, ioli ye-diesel elula, igesi yendalo kunye negesi yepetroleum engamanzi.
Inkqubo yokwambathisa imoto ineempawu zayo kunye nogxininiso ngokweentlobo ezahlukeneyo zeemoto:
(1) Eyona ndawo iphambili yokugquma ilori yikhabhi engaphambili enezona mfuno ziphezulu zokugquma; ezinye iindawo, ezifana nekhareji kunye nefreyimu, zingaphantsi kunekhebhu.
(2) Kukho umahluko omkhulu phakathi komzobo webhasi kunye nelori. Umzimba webhasi uquka i-girder, i-skeleton, ingaphakathi lemoto kunye nomphandle wangaphandle womzimba, phakathi kwayo indawo yangaphandle yomzimba iphezulu. Umphandle wangaphandle womzimba wemoto awufuni kuphela ukukhuselwa okulungileyo kunye nokuhlobisa, kodwa unendawo enkulu yokutshiza, indiza eninzi, imibala engaphezu kwemibini, kwaye ngamanye amaxesha i-ribbon yemoto. Ngoko ke, ixesha lokwakha lide kunelori, iimfuno zokwakha ziphezulu kunelori, kwaye inkqubo yokwakha inzima kakhulu kunelori.
(3) Iimoto kunye neenqwelo zesikhululo ezincinci, nokuba ziphezu kokuhombisa okanye ukhuseleko olusezantsi luphezulu kuneebhasi ezinkulu kunye neemfuno zelori. Ukwaleka kwayo kumphezulu kukwinqanaba lokuqala lokuchaneka kokuhombisa, kunye nenkangeleko entle, eqaqambileyo njengesibuko okanye indawo egudileyo, akukho kungcola okucokisekileyo, ukuqhawuka, ukuqhekeka, imibimbi, ugwebu kunye neziphene ezibonakalayo, kwaye kufuneka zibe namandla aneleyo omatshini.
I-coat ephantsi yinqanaba eligqwesileyo lokukhusela, elifanele libe ne-rust egqwesileyo kunye nokumelana nokugqwala kunye nokunamathela okuqinileyo; inxalenye okanye yonke i-putty ene-adhesion efanelekileyo kunye namandla aphezulu omatshini ayiyi kuhlwa okanye iwe iminyaka emininzi.
Ixesha lokuposa: Jan-03-2023
