Zi geɖe la, kontraktɔwo bua zinc si wota be enye tsatsadada gã aɖe. Èsea dɔwɔƒewo ƒe ŋutinyawo ɣesiaɣi tso afɔku gã aɖe ƒe ʋuʋu kple adhesion ƒe kpododonu si dzɔna le ɣleti aɖewo me tso esime wowu dɔa nu ŋu. Gɔmesese le ɖikekea ŋu bliboe. Gake nyateƒea me kɔ: ẽ, àte ŋu atae dzidzedzetɔe. Le asitsatsa kple dɔwɔƒewo ƒe dɔwɔwɔ me la, eŋutinunyalawo yɔa dɔ sia be 'Duplex System.'.
Nusiwo wotsɔ de eme la lolo ŋutɔ. Ne èwɔe nyuie la, amadede kple galvanizing naa ametakpɔnu si wɔa dɔ aduadu ŋutɔ. Ne mèwɔe nyuie o—zi geɖe to ŋuɖoɖo ɖe mɔ̃ siwo wozãna ɖaa kple epoxy siwo wozãna ɖaa ŋu me—la, ɖeko wògblẽa wò gazazã dome eye wònaa nutoa me ƒe xɔxlɔ̃ kabakaba. Wò amadedea adze le ga la dzi ŋutɔŋutɔ.
Míewɔ mɔfiame sia be míaɖe akɔntabubua ɖa. Míaƒe taɖodzinue nye be míana atikewɔlawo, atike siwo ƒe nɔnɔmewo ŋuti nunyalawo, kple nuƒlelawo ƒe ƒuƒoƒowo natsɔ atike ŋutɔŋutɔ siwo wometsɔ aŋɔ wɔe o la adzra ɖo. Àsrɔ̃ dzadzraɖo ƒe dzidzenu siwo tututu hiã, siwo dome ASTM ƒe ɖoɖo veviwo hã le. Àke ɖe nusiwo wotsɔ blaa nu ƒe tiatia ƒe susu si hiã be woakpɔ egbɔ be woate ŋu aɖo kpe edzi, vodada aɖeke mele eŋu o, eye wòanɔ anyi eteƒe nadidi hã ŋu.
Nu Vevi Siwo Wotsɔna Yia Nu
Nusiwo wotsɔ léa nu ɖe nu ŋu nɔ te ɖe atike si le anyigba dzi dzi, ke menye ɖe eƒe ƒuƒuiƒe ɖeɖeko dzi o: Zi geɖe la, mɔ̃ siwo wozãna tsɔ ƒoa nu ɖe nu ŋu si wozãna ɖaa la gblẽa nu le zinc ƒe ƒuƒoƒoa ŋu evɔ mekpɔa egbɔ be amadedea lé ɖe eŋu o.
Ƒe si woxɔe gblɔa alesi woawɔe: Zinc si wotsɔ galvanized yeye, si ƒe akpa aɖe yame ƒe nɔnɔme gblẽ, kple esi ƒe yame ƒe nɔnɔme gblẽ bliboe hiã dzadzraɖo ƒe ɖoɖo siwo to vovo kura.
Mègazã alkyd alo ami ƒe gɔmedzenuwo gbeɖe o: Wowɔa nu kple zinc (saponification), si wɔnɛ be gɔmedzenu ƒe ƒomedodoa trɔna zua adzalẽ si le glidzaglidza, si wɔnɛ be woɖea wo ɖa keŋkeŋ.
Da mɔnu bubuwo kpɔ kaba: Le kpekpe siwo sɔ pɛpɛpɛ ŋutɔ siwo te ŋu trɔna bɔbɔe gome la, gɔmedzenu siwo me zinc sɔ gbɔ ɖo siwo wɔa dɔ nyuie le gakpo ƒuƒlu dzi ate ŋu ana ROI nyo wu hot-dip galvanizing (HDG) kpe ɖe amadede ŋu.
Asitsatsa ƒe Nya la na 'Duplex System'.
Ele be míaɖe Duplex System la gɔme gbã be míase asixɔxɔ si le eŋu gɔme. Enye aɖaŋunu si wotsɔ blaa nu si wotsɔa dzoxɔxɔ dea galvanized (HDG) kple tsi alo aŋɔ tɔxɛ aɖe si wotsɔ blaa nu ɖe etame. Be woate ŋu awɔ esia nyuie la, ele be dɔ bliboa nanɔ wɔwɔm ɖe ASTM D6386 ƒe dzidzenua dzi pɛpɛpɛ. Dzidzenu siae kpɔa zinc-nyigbawo dzadzraɖo hena nutata dzi.
Viɖe vevitɔ si le ɖoɖo sia ŋue nye nusi dona tso eme si wɔa dɔ aduadu. Film si wota ɖe gota la wɔa dɔ abe mɔxenu ene. Ekpɔa zinc si le ete la ta tso ɖiƒoƒo yamenutomenuwo zazã kaba me. Le esia teƒe la, zinc si le ete la naa cathodic takpɔkpɔ gã aɖe. Ne amadedea vuvu alo ƒoe la, zinc la wɔa dɔ abe vɔsa anode ene. Exea mɔ na under-film rust creepage, si wɔnɛ be nusiwo gblẽ la gakpɔtɔ le teƒe ɖeka.
Ametakpɔnu sia si me wowɔa nu eve le la nana ame ƒe agbenɔƒe didi didi ŋutɔ. Zi geɖe la, duplex-mɔ̃ ƒe agbenɔƒe katã nyea zinc kple amadede ɖeɖeko ƒe agbenɔƒe ɖekaɖekawo ƒe ƒuƒoƒo ƒe teƒe 1.5 va ɖo 2.5. Menye ametakpɔnu eve koe nèxɔna o; èkpɔa dzidziɖedzi ƒe ŋusẽkpɔɖeamedzi.
Susu sia wɔa dɔ le scalability dɔwɔɖoɖo gbogbo aɖewo me. Àte ŋu awɔ dɔ na xɔtuɖaŋu gakpo kpekpe siwo wotsɔ wɔa xɔtunuwoe hena gota bɔlƒoƒe. Le go bubu me la, àte ŋu azã esiwo wota do ŋgɔ galvanized gakpo coil kple galvanized steel sheet materials na xɔtuɖaŋu siwo ƒe lolome lolo ŋutɔ. Dzɔdzɔmeŋusẽŋununya kple ametakpɔkpɔ ƒe gɔmeɖose siwo le ete la gakpɔtɔ sɔ eɖanye nukae wotsɔ wɔe o.
Assessing Coating Condition: Yame ƒe Nɔnɔme ƒe Afɔɖeɖe 3
Wò gotagome numekuku ƒe ɖoɖoae gblɔa dzidzedzekpɔkpɔ alo kpododonu. Dzadzraɖo ƒe ɖoɖowɔɖia nɔ te ɖe ɣeyiɣi didi si... Galvanized Steel de yame. Wotsɔ Màte ŋu awɔ nu ɖe zinc xoxo kple zinc yeye ŋu nenema ke o.
Galvanized Yeye (Gaƒoƒo 0 va ɖo 48) .
Le fesre gbãtɔ sia me la, ga la ƒe nɔnɔme le gbadzaa ŋutɔ eye wòklẽna ŋutɔ. Zinc-nu aɖeke kloe medzɔ ɖe anyigba dzi haɖe o. Ga la nye esi me ʋuʋudedi mele kura o. Esi wònye be nɔnɔme aɖeke mele eme o ta la, naneke mele amadede si wòalé ɖe asi o. Afɔɖeɖe nye sedziwɔwɔ. Ebia be woakɔ eŋu nyuie eye woawɔ atike alo mɔ̃wo ƒe nɔnɔmetata si wòle be woawɔ. Ele be nàŋlɔ nu ɖe edzi be nàwɔ seke siwo le nusuekpɔmɔ̃ me be wòalé ɖe eŋu.
Yame ƒe Nɔnɔme ƒe Akpa aɖe (Ŋkeke 2 Vaseɖe Ƒe 1) – Afɔku ƒe Akpa Kɔkɔtɔ
Esiae nye afɔɖeɖe si me afɔku le wu le nusiwo wotsɔ blaa nu ŋu. Le ɣleti siawo me la, anyigba ƒe nɔnɔme trɔna kabakaba. Zinc oxide kple zinc hydroxide siwo léna ɖe wo nɔewo ŋu nyuie la va tsyɔa edzi. Zi geɖe la, èkpɔa esia be enye gbeɖuɖɔ ɣi si le abe aŋɔ ene le ga la ŋu. Nu siawo siwo me mekɔ o doa kplamatse amadede ƒe ƒoƒo ɖe wo nɔewo ŋu vevie. Ne èta nu ɖe wo dzi la, amadedea léna ɖe aŋɔa ŋu, eye aŋɔa hea nu ɖa le gakpoa ŋu. Afɔɖeɖe bia be woakɔ wo ŋu vevie ahawɔ woƒe nɔnɔmetatawo. Ele be nàɖe chalky siawo ɖa keŋkeŋ hafi atsɔ primer ɖesiaɖe asisi ɖe eŋu.
Yame ƒe Nɔnɔme Bliboe (Ƒe 1+) .
Ne wotsɔ ga la de eme ƒe ɖeka megbe la, eli ke. Yame ƒe nɔnɔme trɔna ne ele ya si woyɔna be carbon dioxide xɔm tso ya me. Ewɔa zinc carbonate. Esia nye atike si léna ɖe nu ŋu sesĩe, si me tsi mate ŋu alɔ̃ o. Le nyateƒe me la, zinc carbonate nye nusi nyo ŋutɔ, si le dzɔdzɔme nu si me mekɔ o na amadede. Afɔɖeɖe le afisia bia be woaɖɔ ŋu ɖo. Ðeko wòle be nàkɔ eŋu fafɛ to tsi dzodzoe kple amiɖemɔ̃ fafɛ zazã me. Ele vevie ŋutɔ be màɖe zinc carbonate si le eme la ɖa le edzadzraɖo me o.
Yame ƒe Nɔnɔme ƒe Afɔɖeɖe |
Ɣeyiɣi si woɖo ɖi |
Anyigba ƒe Nɔnɔme |
Afɔɖeɖe si Wobia |
Galvanized Yeye |
Gaƒoƒo 0 va ɖo 48 |
Ebɔbɔ, eklẽna, si me ʋuʋudedi mele o |
Klɔe nyuie; tsɔ atike alo mɔ̃ si wotsɔ ŋlɔa nu ɖe nu dzi. |
Yame ƒe Nɔnɔme ƒe akpa aɖe |
Ŋkeke 2 Vaseɖe Ƒe 1 |
Gbeɖuɖɔ ɣi si le abe aŋɔ ene (zinc oxides/hydroxides) . |
Ðe atike siwo katã le gbadzaa kple woƒe nɔnɔmetatawo ɖa sesĩe. |
Yame ƒe Nɔnɔme Ƒe Nɔnɔme Bliboe |
Ƒe 1 ƒe+ |
Zinc carbonate ƒe ƒuƒoƒo si li ke |
Ami ɖeɖeɖa fafɛ ɖeɖeko; dzra zinc carbonate la ɖo. |
Dzadzraɖo ɖe Anyigba Dzi: Afɔku Siwo Le Dodokpɔ Me Dzi Ðeɖe Akpɔtɔ
Ne ède dzesi yame ƒe nɔnɔme ƒe nɔnɔme nyuie gɔ̃ hã la, ewuwu nyuie le dzadzraɖo me agblẽ nu le duplex-mɔ̃a ŋu. Ele be nàwɔ ɖe ɖoɖo sesẽwo dzi be nàɖe kpododonu ƒe afɔkuwo dzi akpɔtɔ.
Afɔku Dzi Ðeɖe Akpɔtɔ (Chromate Dodokpɔ) .
Zi geɖe la, dɔwɔƒewo nyrɔa gakpo yeye siwo wotsɔ lãgbalẽ wɔe ɖe chromate-tsiléƒewo me. Passivation agents siawo xea mɔ na tsidzadza nudzraɖoƒe ƒe ɖiƒoƒo le meliɖoɖo me. Gake chromates nyãa amadede vevie. Ele be nàdo passivation agents kpɔ ɣesiaɣi to ASTM B201 ƒe ɖoɖowɔɖi zazã me. Ne dodokpɔa ɖe chromates fia la, màte ŋu ata ga la enumake o. Ele be chromate-awo nadzo le dzɔdzɔme nu, alo ele be nàɖe wo ɖa sesĩe to mɔ̃wo ƒe nɔnɔmetatawo wɔwɔ me.
Dzadzɛnyenye Ŋuti Ðoɖowo
Hafi nàwɔ eƒe gogloƒe la, ele be nàɖe ɖiƒoƒo, ami, kple nugbagbevi siwo katã ƒo ɖii ɖa. Wɔ ɖe afɔɖeɖe siawo siwo kplɔ wo nɔewo ɖo dzi hena dzadzɛnyenye nyuitɔ kekeake:
De alkaline alo acidic tsi si wotsɔna klɔa nu ŋu (zi geɖe la, wodea tsii 25:1) ɖe edzi.
Zã brɔs falɛfalɛ si ƒe ɖa le ʋuʋu ɖi nàtsɔ aʋuʋu ɖiƒoƒo siwo me lãmenugbagbeviwo le sesẽe.
Klɔ edzi nyuie kple tsi nyui nyui be wòana atike siwo wotsɔna klɔa nu ŋu la nagagblẽ o.
Na ga la naƒu keŋkeŋ hafi nàyi profiling ƒe afɔɖeɖea dzi.
Le agbalẽ yeye siwo me mekɔ o gome la, dɔwɔƒewo ƒe vinegar ɣi tutu ɖe anyi ate ŋu ana acid etch fafɛ si wɔa dɔ ŋutɔ eye wòaɖe ami fafɛwo ɖa le ɣeyiɣi ɖeka me.
Profiling (Anchor ƒe Kpɔɖeŋua Wɔwɔ) .
Paint hiã bali siwo me nusuekpɔmɔ̃ le kple to siwo dzi woate ŋu axe mɔ ɖo. Míeyɔa esia be seke ƒe nɔnɔme. Mɔ ʋɛ aɖewo le asiwò si dzi nàto awɔ esia evɔ màgblẽ ga la o.
Sweep Blasting (SSPC-SP 16): Esiae nye dɔwɔƒea ƒe dzidzenu na mɔ̃ɖaŋunuwo ƒe nɔnɔmetatawo wɔwɔ. Ele be nàzã aɖaŋu si wotsɔna blaa nu le dzogoe si mebɔ o me. Lé nugbɔa ɖe dzidzenu 30 va ɖo 60 dome. Zã aŋenu si ƒe sesẽme mede o. Ele be abrasive la naɖo Mohs ƒe sesẽme si nye 5 alo esi mede nenema o (abe walnut ƒe gowo, bli ƒe aŋgbawo, alo mineral sands tɔxɛwo ene). Na nusueawo ƒe lolome nanɔ micron 200 va ɖo 500 dome.
Afɔku si Le Keke Ƒe Dzodzoe Ŋu: Ele be nàƒo asa na sandblasting si wozãna ɖaa si ƒe didime nye dzidzenu 90 aleke kee wòɖale o. Standard blasting ana woaɖe zinc falɛfalɛa ɖa keŋkeŋ. Esia gblẽa vɔsa anode takpɔkpɔ, si wɔnɛ be viɖe aɖeke meganɔa galvanizing-dɔwɔwɔ bliboa ŋu o. Ne sweep blasting se le eɖokui me be afɔku le eme akpa na wò agbledelawo la, ke tsɔ atikewɔmɔnuwo wɔe.
Wash Primers / Acrylic Pretreatment: Esiawo nye acidic atike siwo wowɔ be woatsɔ atike atrɔ zinc ƒe anyigba ƒe tete. Wozia zinc la dzi be wòaxɔ amadede evɔ mehiã be woatsɔ mɔ̃ aɖeke aƒoe o. Esia ɖea afɔku si nye be woatɔ dzoe wòagbɔ eme la ɖa keŋkeŋ.
Nusiwo Woatsɔ Atsyɔ Nu Ŋu Tiatia: Dzɔdzɔmeŋusẽŋununya Si Léna Ŋutɔŋutɔ
Ðewohĩ vodada aɖeke manɔ wò dzadzraɖoa ŋu o, gake atike si mesɔ o zazã ana nàdo kpo nu vevie kokoko. Zinc nye ga si me alkali le, eye wòwɔa nu sesĩe kple amadede aɖewo.
Cardinal Rule (Nusiwo Wòaƒo Asa Na) .
Ele be nàxe mɔ ɖe amadede siwo me alkyd le kple nusiwo wotsɔa ami wɔe siwo wozãna ɖaa nu vevie. Ne zinc do go alkyd resins la, atikewo ƒe dɔwɔwɔ si dzi womate ŋu aɖu o dzɔna. Woyɔa esia be saponification. Zinc si me alkali le la wɔa dɔ kple amiawo tsɔ wɔa adzalẽ ŋutɔŋutɔ le amadede ƒe film la te. Ne wonya wɔ sapon ko la, nusi wotsɔ blae la avuvu le agbalẽ gã siwo te ŋu trɔna bɔbɔe me. Esia naa kakaɖedzi be nutsyɔnu bliboa ado kpo nu.
Primer Systems siwo dzi woda asi ɖo
Ele be nàgblɔ gɔmedzenuwo siwo wowɔ tẽ be woawɔ ɖeka kple zinc. Adzɔha la de dzesi hatsotso vevi eve.
Specialized Self-Etching Primers: Wowɔ esiawo koŋ na dzoxɔxɔ-nyrɔ ɖe galvanized anyigba. Wowɔna ɖe nɔnɔme tɔxɛwo abe SSPC Paint 27. Woɖua ga la me to atikewo me.
Acrylic Metal Primers: Acrylic primer siwo wotsɔ tsi wɔe siwo ƒe nyonyome deŋgɔ ɖea alesi woléna ɖe zinc si ŋu wokɔ nyuie ŋu nyuie ŋutɔ. Wokpɔtɔ te ŋu trɔna ɖe nɔnɔmewo ŋu eye wotsia tre ɖe saponification ŋu keŋkeŋ.
Topcoats siwo wɔa dɔ nyuie ŋutɔ
Ne ènya de prime ɖe edzi ko la, àhiã be nàdo awudziwui sesẽ aɖe si ana nànɔ te ɖe nutome ƒe gbegblẽ nu. Míeɖo aɖaŋu be woatsɔ Direct-To-Metal (DTM) acrylic latex-ta alo DTM acrylic enamels awɔ gotagome xɔtuɖaŋu akpa gãtɔ.
Le nuto siwo me wowɔa adã le gome la, ele be nàtrɔ asi le wò nɔnɔmewo ŋu. Bu tsidzɔƒe siwo me chlorine sɔ gbɔ ɖo ŋu kpɔ. Polyester-tu si wozãna ɖaa la doa kpo nu kabakaba ne wodo go xɔme tsita ƒe dzoxɔxɔ. Le nɔnɔme siawo me la, gblɔ afɔɖeɖe ɖeka ƒe amadede siwo sɔ na dɔwɔƒewo. Adzɔnuwɔƒe ƒe amadede tɔxɛ siawo toa alesi wòhiã be woawɔ etching primers vovovowo ŋu elabena wotsɔa atikewo blana ɖe zinc ƒe ƒuƒoƒoa ŋu tẽ.
Nusiwo wotsɔ blaa nu ƒe Ƒomedodo |
Kpɔɖeŋuwo / Ƒomeviwo |
Nyametsotso na Duplex Systems |
Atikewɔmɔnu Siwo Wode Se Ðe Edzi |
Alkyd enamels, ami-si wotu ɖe gɔmedzenuwo dzi si wozãna ɖaa |
Ƒo Asa Nae Kpekpeɖeŋu. Ehea saponification (adzalẽ ƒe wɔwɔme) kple eƒe lãɖeɖe bliboe vɛ. |
Primer siwo dzi woda asi ɖo |
SSPC Paint 27, acrylic ga gɔmedzenuwo, tsilele gɔmedzenuwo |
Wokafui Vevie. Enaa atikewo léna ɖe wo nɔewo ŋu si li ke evɔ mewɔa nu gbegblẽ o. |
Topcoats Siwo Sɔ Nyuie Wu |
DTM acrylic latex, DTM enamels, dɔwɔƒewo ƒe afɔɖeɖe ɖeka ƒe zinc-ta |
Wokafui Vevie. Ewɔa mɔxenu si nɔa anyi didina, si te ŋu trɔna bɔbɔe, si te ŋu nɔa te ɖe yame ƒe nɔnɔme nu. |
Nyaʋiʋli si Tsi Tre Ðe Eŋu: Ɣekaɣie Woadzo le Galvanizing + Paint dzi
Ele be míakpɔ dɔwɔwɔ ƒe nyateƒenya vevi aɖe gbɔ. Hot-dip galvanizing si kplɔe ɖo kple nutata nye nusi sesẽ ŋutɔ, si me asitsatsa geɖe le. Etsɔa vodada ƒe vovototo gã ɖedzesi aɖe ɖe asi. Ɣeaɖewoɣi la, duplex system nyea tiatia gbegblẽ na wò dɔa.
Dɔwɔwɔ ƒe Nyateƒenyawo & Nyonyome Dzikpɔkpɔ
Ƒã hafi atsyãwɔwɔ yia edzi bliboe. Asitɔtrɔ le agblea dzi bia be woawɔ welding le teƒea. Welding gblẽa HDG layer la enumake. Ne kontraktɔ siwo tsɔa zinc si fa miamiamia dzraa gaƒoɖokui siawo ɖo le agble me la, nuwo ɖɔɖɔɖoa medea gasɔ si wotsɔna ƒoa dzoe le dɔwɔƒewo nu kura o. Èwɔa kadodo si gbɔdzɔ le wò kɔsɔkɔsɔ si tsi tre ɖe xɔxlɔ̃ ŋu la me.
Dzoxɔxɔ ƒe Tɔtɔ ƒe Afɔku
Ele be nàbu dzoxɔxɔ sesẽ si le galvanizing tsileƒea hã ŋu. Gakpo siwo wotsɔ wɔ xɔtuɖaŋu siwo sesẽ alo esiwo de pɛpɛpɛ ŋutɔ la te ŋu trɔna bɔbɔe eye wotrona bɔbɔe etɔxɛe le woƒe tsinyenye me. Ne wò xɔtuɖaŋu bia be nàɖe mɔ ɖe eŋu pɛpɛpɛ la, ele be nàkpɔ ASTM A384 ƒe mɔfiamewo le dzoxɔxɔ ƒe tɔtɔ ŋu. Zi geɖe la, ɖeko dzoxɔxɔ ƒe afɔkua lolo akpa.
Primer ƒe Mɔnu Bubu si Wɔa Dɔ Nyuie
Bu wò tamewu mamlɛtɔ ƒe dzadzraɖo ƒe nudidiwo ŋu. Ƒudziwui aɖewo siwo ƒe nyonyome de ŋgɔ alo dɔwɔƒewo ƒe tamewuwo bia be woaɖo 'Near-White Blast' ƒe nɔnɔmetata hena woƒe alé ɖe wo nɔewo ŋu nyuie. Ne ètɔ dzo anyigba si wotsɔ galvanized wɔe ɖe Near-White ƒe dzidzenu nu la, tudada sesẽ ma agblẽ zinc ƒe ƒuƒoƒoa me keŋkeŋ. Àtsɔ wò ga si nède eme la aƒu gbe wòazu ke.
Nyametsotso ƒe Susuŋudɔwɔwɔ
Le nɔnɔme siwo me wowɔa nu pɛpɛpɛ ŋutɔ, alo le dɔwɔƒe sesẽ siwo hiã be woawɔ blast profiling vevie me la, enyo wu sã be woadzo le hot-dip galvanizing dzi keŋkeŋ. De primer si me zinc sɔ gbɔ ɖo nyuitɔ kekeake ɖe gakpo ƒuƒlu si wotɔ dzoe nyuie dzi tẽ. Dze esia yome kple wò awudziwui si wɔa dɔ nyuie. Àkpɔ agbenɔƒe didi si sɔ, aɖe dzoxɔxɔ ƒe tɔtɔ ƒe afɔkuwo ɖa, eye nàna wò nuzazãwo nanɔ bɔbɔe ŋutɔ.
Nyanuwuwuw
Zinc-kpewo tata wɔa dɔ ŋutɔ, gake le gɔmedzedzea me la, mɔnu sia meɖea mɔ ɖe mɔ kpuiwo ŋu o. Wò dzidzedzekpɔkpɔ nɔ te ɖe yame ƒe nɔnɔme ŋuti numekuku si sɔ wɔwɔ, aɖaŋu si sɔ pɛpɛpɛ wɔwɔ, kple asaƒoƒo na aŋɔ siwo mewɔ ɖeka o abe alkyds ene vevie dzi.
Hafi nàdze wò dɔ si kplɔe ɖo gɔme la, wɔ afɔɖeɖe aɖe atsɔ akpɔ wò specification ta. Ðo aɖaŋu na wò nuƒlelawo kple mɔ̃ɖaŋudɔwɔlawo ƒe ƒuƒoƒowo be woalé ŋku ɖe nudzralawo ƒe dɔwɔwɔ ŋu vevie. Kpɔ egbɔ be woɖo kpe edzi be wowɔ ɖe ASTM D6386 dzi bliboe hena anyigba dzi dzadzraɖo kple SSPC-SP 16 hena sweep blasting. Ne èbia be woawɔ ɖe dzidzenu siawo dzi la, ètrɔa nutata ƒe agbagbadzedze si me afɔku le wòzua nutata ƒe ɖoɖo si woate ŋu agblɔ ɖi, si nɔa anyi didina ŋutɔ.
Nyabiasewo ƒe Nyabiasewo
Q: Àte ŋu ata nu tẽ ɖe gakpo si wotsɔ galvanized wɔe dzia?
A: Ao, esiwo womedzra ɖo o, siwo wotsɔ galvanized wɔe yeyee la le gbadzaa akpa eye atikewo wɔa dɔ ɖe wo nɔewo dzi be woate ŋu atsɔ amadede si wozãna ɖaa la alé ɖe wo nɔewo ŋu. Ele be nàkɔ ga la ŋu nyuie, nàzã atike si wotsɔ ŋlɔa nu alo nusi wotsɔna kplɔa nu si ƒe nyaƒoɖeamenu sue aɖe ƒe nɔnɔmetata, eye nàtsɔ ga si wotsɔ ƒoa nu tɔxɛ aɖee asisi ɖe eŋu gbã.
Q: Amadede ka ƒomevie alé ɖe ga si wotsɔ galvanized wɔe ŋu?
A: Ele be nàzã Direct-To-Metal (DTM) acrylic latex-ta, acrylic enamels, alo dɔwɔƒewo ƒe afɔɖeɖe ɖeka ƒe amadede tɔxɛ siwo wowɔ na zinc. Mele be nàzã alkyd alo amadede siwo me ami le gbeɖe o, elabena ana woazu sapon eye woaƒo wo godoo.
Q: Aleke mawɔ ata ga si wotsɔ galvanized wɔe si xɔ dzo (si xɔ dzo)?
A: Ne èkpɔ 'white rust' (zinc oxide) la, ele be nàɖee ɖa nyuie to eŋu kɔklɔ sesĩe kple amiɖeɖe ɖe edzi me. Ne èkpɔ gbeɖuɖɔ dzĩ la, gakpo si le ete la dzena. Ele be nàwɔ gbeɖuɖɔ ɖɔɖɔɖo si wozãna tsã eye nàde patch primer si me zinc sɔ gbɔ ɖo hafi atsyɔ edzi bliboe.
Q: Ðe mehiã na primer tɔxɛ aɖe na galvanized steel coil?
A: Ɛ̃. Zi geɖe la, wowɔa pasivation treatments abe chromates alo rolling oils siwo wozãna le dɔwɔƒea ene le coils me. Ele be nàtsɔ atike aɖe ametakpɔnu siawo ɖa gbã. Le ema megbe la, ele be nàtsɔ ga si wotsɔna ƒoa nu ɖe eɖokui ŋu alo esi wotsɔ acrylic wɔe la asisi ɖe eŋu hafi atsɔ wò tamewu mamlɛtɔ asisi ɖe eŋu.
