Kusetshenziswe uhlelo lwenqubo yokudweba
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Uhlelo oluvamile lwenqubo yokugqoka lungahlukaniswa ngokusho kokugqoka, uhlelo olubili lokugqoka (i-primer + top coat); uhlelo lokuhlanganisa ezintathu (i-primer + medium coating + top coat noma metal flash paint / cover light varnish); uhlelo lokumboza olune (i-primer + medium coating + top coat + cover light varnish, ifanele izimoto zikanokusho ezinezidingo eziphakeme zokugqoka).
Ngokuvamile, ezivame kakhulu uhlelo ezintathu-enamathela, izidingo zokuhlobisa umzimba high imoto, ibhasi kanye nemoto izivakashi, iloli cab ngokuvamile zisebenzisa ezintathu-enamathela uhlelo.
Ngokwezimo zokomisa, ingahlukaniswa ngesistimu yokomisa kanye nesistimu yokuzomisa. Uhlelo lokumisa lufanele ukukhiqizwa komugqa wokuhlanganisa omkhulu; uhlelo lokuzimisa lufanele ukukhiqizwa kwe-batch encane yomdwebo wezimoto kanye nomdwebo omkhulu wemoto okhethekile wemoto.
Inqubo evamile yokwemboza yebhasi elikhulu nenqola yesiteshi imi kanje:
Ukwelashwa kwangaphambili (ukususwa kwamafutha, ukususwa kokugqwala, ukuhlanza, ukulungiswa kwetafula) ukuhlanza i-phosphating primer dry putty coarse scraping (omile, ukugaya, sula) i-putty fine scraping (eyomile, igaya, sula) enamathela (eyomile, egaya, sula) ukugqoka (ukoma ngokushesha, ukomisa, ukugaya, ukusula) upende ongaphezulu (owomile noma okhava) ukuhlukaniswa kombala (ukoma)
Inqubo yokwelashwa kwendawo yangaphambili
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Ukuze uthole i-coating yekhwalithi ephezulu, ukulungiswa kwe-coating surface ngaphambi kokudweba kubizwa ngokuthi ukwelashwa kwendawo yepende. Ukwelashwa kwendawo yangaphambili kuyisisekelo senqubo yokumboza, enomthelela omkhulu kwikhwalithi yengubo yonke, ikakhulukazi kuhlanganise nokuhlanza ubuso (ukususwa kwamafutha, ukususwa kokugqwala, ukususwa kothuli, njll) kanye nokwelashwa kwe-phosphating.
Kunezindlela eziningana zokuhlanza ingaphezulu:
(1) Hlanza nge-lye eshisayo bese ukhuhla nge-solvent ephilayo ukuze ususe uwoyela; pholisha nge-sandpaper engu-320-400 ebusweni be-FRP, bese uhlanza nge-solvent ephilayo ukuze ususe isikhiphi sefilimu; ukugqwala okuphuzi ebusweni bomzimba wemoto kuzohlanzwa nge-phosphoric acid ukuze kuqinisekiswe ukuthi ukumbozwa kunokumelana nokugqwala okuhle kakhulu nokunamathela okuhle ebusweni bengubo.
(2) Ukwelashwa kwamakhemikhali okuhlukahlukene kwendawo ehlanzekile yezingxenye zensimbi eziboshiwe ukuze kuthuthukiswe ukunamathela nokungagqwali kwefilimu kapende. Ukwelashwa kwamakhemikhali okukhethekile kwezingxenye zepuleti lensimbi ukuze kuthuthukiswe amandla enhlanganisela yefilimu kapende ne-substrate.
(3) Sebenzisa izindlela zemishini ukuze ususe iziphambeko zemishini yezinto zokumboza kanye nokuqina okudingekayo ukuze udale ifilimu yokuhlanganisa. Ukwelashwa kwe-Phosphate kunomjovo obalulekile kanye nokucwiliswa okubalulekile. Ifilimu elincanyana le-zinc elinosawoti wokwelashwa ngokushesha kwe-phospholation, ulwelwesi lwe-phospholated luyi-1-3g / m, ulwelwesi luyi-1-2 μ m ubukhulu, usayizi wekristalu ngu-1-10 μ m, ungaphoswa ngokushisa okuphansi okungu-25-35 ℃ noma izinga lokushisa eliphakathi kuka-50 -70 ℃.
Aisicelo
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1. Futha i-primer
I-Primer coating iyisisekelo sayo yonke i-coating, futhi amandla okuhlanganisa kanye nokuvimbela ukugqwala kokunamathela kwezimoto nensimbi kufinyelelwa yikho ngokuyinhloko. I-Primer kufanele ikhethwe ngokumelana nokugqwala okuqinile (isifutho sikasawoti 500h), ukunamathela okuqinile ne-substrate (ingakwazi ukuzivumelanisa nezinto ezihlukahlukene ze-substrate ngesikhathi esifanayo), inhlanganisela enhle ne-medium coat noma i-topcoat, i-coat coat mechanical properties (umthelela 50cm, ukuqina 1mm, ubulukhuni 0.5) ukunamathela njenge-primer.
Ukusebenzisa indlela yokufafaza komoya (ingakwazi futhi ukukhetha ukucindezela okukhulu ngaphandle kokufafaza igesi) ukufafaza i-priming, ungasebenzisa indlela yokuthinta emanzi ngisho nokufafaza iziteshi ezimbili, i-viscosity yokwakha 20-30s, isikhawu ngasinye se-5-10min, emva kokufafaza i-flash 5-10min kuhhavini. , ukujiya kwefilimu eyomile kuyi-40-50 μ m.
2. Scratch putty
Inhloso yokukhuhla i-putty ukuqeda ukungahambi kahle kwezinto zokugqoka.
I-puputty kufanele ikhulwe phezu kongqimba lwe-primer eyomile, ukujiya kokumboza ngokuvamile akweqi ku-0.5mm, indlela entsha ye-scraping putty yendawo kufanele isetshenziswe. Le ndlela kulula ukwenza indawo enkulu ye-putty, ngaphansi kwesisekelo sokuthi ayithinti inqubo yokukhiqiza, kuhlongozwa ukuthi yonke i-putty ekhuhlayo kufanele yomiswe futhi ipholishwe isicaba, bese ikhuhla i-putty elandelayo, i-putty ukuze iklwe izikhathi ezingu-2-3. kuhle, kuqala ukukhuhla okuwugqinsi bese kuba ukuklwebheka okuncanyana, ukuze kuthuthukiswe amandla ongqimba lwe-putty futhi kuthuthukiswe ukucaba.
Ukusebenzisa indlela yomshini wokugaya i-putty, ukukhethwa kwe-sandpaper ye-180-240 mesh.
3. Faka isifutho
Ukusebenzisa isifutho esimile noma indlela yokufafaza komoya, ukufafaza ku-coating, kungathuthukisa ukumelana kwamatshe kokunamathela, kuthuthukise ukunamathela nge-primer, kuthuthukise ukucaba nokushelela kwendawo emboziwe, ukuthuthukisa ukugcwala nokubukeka okusha kopende ongaphezulu. .
Medium enamathela jikelele wet ezimanzi sishaye ezimbili okuqhubekayo, viscosity ukwakhiwa kuyinto 18-24s, isikhawu ngasinye 5-10min, flash 5-10min kuhhavini, ukushuba medium enamathela eyomile ifilimu ukujiya kuyinto 40-50 μ m.
4. Futha upende
Ukusebenzisa isifutho esimile noma indlela yokufafaza komoya, ukufafaza upende ongaphezulu kwemoto, kungakha ukumelana nesimo sezulu, ukubonakaliswa okusha nokucwebezela kwefilimu kapende enhle kakhulu.
Ngenxa yobubanzi bemishini yokwakha, imininingwane, isisindo somshini wonke, izingxenye ezinkulu, ngokuvamile zisebenzisa indlela yokufafaza yokudweba.
Amathuluzi okufutha ahlanganisa isibhamu somoya, isibhamu sokufutha esingenamoya, isibhamu somoya esisizayo kanye nesibhamu esiphathwayo esimile. Ukusebenza kahle kokufuthwa kwesibhamu somoya kwesibhamu somoya kuphansi (cishe u-30%), isibhamu somoya ocindezelayo sichitha upende, isici esivamile sokungcoliswa kwemvelo okubili sibi kakhulu, ngakho-ke sekwenzekile futhi sithathelwa indawo isibhamu sokufafaza esisiza emoyeni kanye nesibhamu esiphathwayo se-electrostatic injection.
Isibonelo, inkampani yokuqala emhlabeni yemishini yokwakha ——— Inkampani yaseCaterpillar American isebenzisa isibhamu sokufutha esisizwa umoya ukuze sifafaze, futhi isivalo nezinye izingxenye zekhava yamapuleti amancane zisebenzisa isibhamu esiphathwayo esimile. Imishini yokupenda yemishini yokwakha ngokuvamile isebenzisa igumbi lokupeyinta elithuthuke kakhulu le-water spin.
Izingxenye ezincane neziphakathi zingasebenzisa futhi igumbi lokudweba kwamakhethini amanzi noma akukho gumbi lokudweba iphampu, yangaphambili inokusebenza okuthuthukisiwe, okwedlule ukonga, kulula futhi kusebenza. Ngenxa yomthamo omkhulu wokushisa wayo yonke imishini yobunjiniyela nezingxenye, ukomiswa koqweqwe lwawo olunqanda ukugqwala ngokuvamile kusebenzisa indlela yokomisa yokubhaka okufaniswayo kanye ne-convection yomoya oshisayo. Umthombo wokushisa ungashintshwa ukuze uvumelane nezimo zendawo, khetha umusi, ugesi, uwoyela wedizili omncane, igesi yemvelo kanye negesi ye-petroleum ewuketshezi.
Inqubo yokumboza imoto inezici zayo kanye nokugcizelela ngokwezinhlobo zezimoto ezahlukahlukene:
(1) Ingxenye eyinhloko yokunamathisa yeloli iyikhebhu yangaphambili enezidingo eziphakeme zokumboza; ezinye izingxenye, njengenqola kanye nohlaka, ziphansi kunekhebhu.
(2) Kunomehluko omkhulu phakathi komdwebo webhasi neloli. Umzimba webhasi uhlanganisa ibhande, uhlaka lwamathambo, ingaphakathi lemoto kanye nengaphandle lomzimba, phakathi kwalo indawo yangaphandle yomzimba ephakeme. Ubuso obungaphandle bomzimba wemoto abudingi nje kuphela ukuvikelwa okuhle nokuhlobisa, kodwa futhi inendawo enkulu yokufafaza, indiza eminingi, imibala engaphezu kwemibili, futhi ngezinye izikhathi i-ribbon yemoto. Ngakho-ke, isikhathi sokwakha sikhulu kuneloli, izidingo zokwakha ziphakeme kuneloli, futhi inqubo yokwakha iyinkimbinkimbi kuneloli.
(3) Izimoto nezinqola zesiteshi ezincane, kungakhathaliseki ukuthi zisendaweni yokuhlobisa noma yokuvikela phansi ziphakeme kunezidingo zamabhasi amakhulu namaloli. Ukugqoka kwayo okungaphezulu kungokwezinga lokuqala lokunemba kokuhlobisa, ngokubukeka okuhle, okukhanyayo njengesibuko noma indawo ebushelelezi, akukho ukungcola okuhle, imihuzuko, imifantu, imibimbi, amagwebu kanye namaphutha abonakalayo, futhi kufanele ibe namandla anele omshini.
I-coating engezansi iyisendlalelo esihle kakhulu sokuzivikela, okufanele sibe nokugqwala okuhle kakhulu nokumelana nokugqwala nokunamathela okuqinile; ingxenye noma yonke i-putty ene-adhesion enhle namandla aphezulu emishini ngeke igle noma iwe iminyaka eminingana.
Isikhathi sokuthumela: Jan-03-2023
