Ngaba i-coating inkulu, i-coating ingqimba, kwaye ubude benkonzo yobomi bepleyiti yentsimbi yombala

Iindaba

Ukucwenga
Ubukhulu bokwambathisa yeyona meko ibalulekileyo yesiqinisekiso sokumelana nomhlwa.Okukhona ubukhulu bokutyaleka buba bukhulu, kokukhona kubhetele ukuxhathisa umhlwa, okungqinwe luvavanyo oluninzi olukhawulezileyo kunye novavanyo lokuvezwa kweempumlo.
Njengoko kubonisiwe ngezantsi:

Kwiipleyiti zentsimbi ezinombala ezisekelwe kwi-(aluminiyam) i-zinc plated plated, ubukhulu be-coating buchaphazela kakhulu ukusebenza kwe-notch ye-corrosion ye-plate yentsimbi yombala.I-substrate encinci, ingqimba ye-zinc layer, kwaye ingcono ukuxhathisa i-corrosion ye-cut.Okwangoku iyaziwa kumazwe ngamazwe ukuba umlinganiselo we-zinc ≥ 100 lukhuselo olusebenzayo ngokuchasene ne-notch corrosion yeepleyiti zentsimbi ezigqunywe ngombala.
Isatifikethi.Ukuthatha i-substrate ye-0.5mm njengomzekelo, umxholo we-plating ngemitha yesikwere kwelinye icala kufuneka ufikelele ubuncinane kwi-50g.

Indlela yokukhetha uhlobo lokwaleka
Indima ephambili yokwaleka ibonakaliswe kuzo zombini iimpembelelo ezibonakalayo kunye nemisebenzi yokukhusela.I-pigments ye-coating inokwahlulwa ibe yi-organic pigments kunye ne-inorganic pigments, enemibala eqaqambileyo kunye ne-luster;Ii-pigments ze-Inorganic ngokuqhelekileyo zinemibala ekhanyayo, kodwa iimpawu zazo zeekhemikhali kunye nokumelana ne-UV ziphezulu kune-organic pigments.
Iingubo eziphezulu ezisetyenziswa ngokuqhelekileyo kwiipleyiti zentsimbi ezinemibala ziquka i-polyester (PE), i-silicon eguqulelwe i-polyester (SMP), i-high durability polyester (HDP), kunye ne-polyvinylidene fluoride (PVDF).I-topcoat nganye ifanelekile kwiimeko ezahlukeneyo, kwaye sincoma ukusebenzisa i-HDP okanye iimveliso ze-PVDF xa uqoqosho luvumela.

Ukukhethwa kwe-primer, i-epoxy resin kufuneka ikhethwe ukuba i-adhesion kunye ne-corrosion resistance igxininiswe;Ukufumana ingqalelo engakumbi yokuguquguquka kunye nokumelana ne-UV, khetha i-polyurethane primer.
Ukugquma ngasemva, ukuba ipleyiti yensimbi efakwe umbala isetyenziswe njengeplate enye, khetha isakhiwo esinemigangatho emibini, oko kukuthi, umqolo omnye we-back primer kunye nomgca omnye wokugqiba umva.Ukuba ipleyiti yensimbi efakwe umbala isetyenziswe njenge-composite okanye i-sandwich plate, i-resin epoxy isetyenziswe ngasemva.

Isiphumo sokutyabeka ubukhulu kubomi benkonzo
Ukufakwa kwepleyiti yentsimbi enemibala inokudlala indima ethile ekuthinteleni ukubola, isebenzisa ifilimu yokwaleka ukwahlula izinto ezitshabalalisayo zangaphandle.Nangona kunjalo, ngenxa yenkangeleko encinci yefilimu yokwambathisa ngokwayo, kusekho i-pores, kwaye umphunga omncinci wamanzi osemoyeni uya kuhlasela i-coating, ubangele ukugqabhuka kwengubo kwaye mhlawumbi ibangele ifilimu yokugqoka iwe.Kwipleyiti yensimbi, i-plating
Uluhlu (i-zinc plated okanye i-aluminium zinc plated) inempembelelo enkulu kubomi bentsimbi yensimbi.
Ngobunzima obufanayo bokugquma, i-coating yesibini ixinene kuneyona nto iphambili, inokumelana nokugqwala okungcono kunye nobomi benkonzo obude.Ngobunzima bokugquma, ngokusekwe kwiziphumo zovavanyo olufanelekileyo, sincoma ukuba i-coating yangaphambili ibe ngama-20 um okanye ngaphezulu, njengoko ubukhulu befilimu obaneleyo bunokuthintela ukubola ngaphakathi kwexesha elisemthethweni.
Thintela ukwenzeka komhlwa (i-PVDF ifuna ukutyeba kokutyabeka okutyebileyo ngenxa yeemfuno zobomi benkonzo ende, ngokuqhelekileyo i-25 μ M okanye ngaphezulu).


Ixesha lokuposa: Mar-31-2023