Ẽ, àte ŋu akpɔ dzidzedze le powder coat galvanized steel be nàwɔ 'duplex system' sesẽ aɖe si naa tsitretsitsi ɖe xɔxlɔ̃ ŋu si de ŋgɔ wu. Ne wotsɔ ametakpɔnu vovovo eve siawo ƒo ƒui la, wowɔa atsyɔ̃ɖoɖo ƒe nuwuwu si ate ŋu anɔ agbe le dɔwɔƒewo ƒe nɔnɔme sesẽwo me.
Gake le dzɔdzɔme nu la, nusi wotsɔ galvanized wɔe yeyee la mesɔ na aŋɔ si wotsɔ blae tso tsileƒea tututu o. Ne mèdzra anyigbadzinuwo ɖo vevie kple atikewo o la, ya si dona le eme, pinholing, kple delamination si gblẽa nu le wò ametakpɔnu ŋu la akpe fu godoo. Màte ŋu aƒu gbe ɖe zinc dzi ko ahakpɔ mɔ be wòalé ɖe eŋu ɣeyiɣi didi o.
Mɔfiame sia gblẽ mɔ̃ɖaŋununya ƒe susu si le megbe na duplex coatings kple mɔ̃ siwo bɔ siwo wòle be nàƒo asa na la me. Míadzro ASTM dzadzraɖo ƒe ɖoɖo sesẽ siwo hiã na nuléle sesẽ me. Míana numekuku ƒe dzidzenuwo hã be wòakpe ɖe ŋuwò nàgblɔ nusiwo wotsɔ aŋɔ wɔe nyuie na wò xɔtuɖaŋu alo nuwo wɔwɔ ƒe dɔ si gbɔna.
Nu Vevi Siwo Wotsɔna Yia Nu
The 2.5x Multiplier: Ne wotsɔ powder coating kple hot-dip galvanizing tsaka la, enaa wowɔa dɔ aduadu, si wɔnɛ be gakpoa ƒe agbenɔƒe didi va ɖoa zi gbɔ zi 2.5 wu coating eveawo dometɔ ɖesiaɖe ɖeɖeko.
Afɔku si Le Ya Si Ado Le Eme: Tsi kple gas si xaxa ɖe zinc ƒe ƒuƒoƒoa me akeke ɖe enu ne wole aŋɔ ƒom, si ana pinhowo nado. 'do ŋgɔ na abolomeƒe' si nye sedziwɔwɔ koe nye nusi dzi woate ŋu aka ɖo atsɔ aɖe edzi akpɔtɔ.
Oxidation Window: Zinc wɔa dɔ nyuie ŋutɔ. Ne wonya wɔ profile vɔ la, ele be woatsɔ ga atsyɔ akpa siwo wotsɔ galvanized wɔe la dzi le dɔwɔwɔ ƒe ɣeyiɣi ɖeka ma ke me (anyo wu be ne mede gaƒoƒo 12 o) be woaxe mɔ ɖe zinc oxide si womekpɔna o ƒe dzɔdzɔ nu.
Dzidzenu ƒe Sedziwɔwɔ: Ne woate ŋu azãe dzidzedzetɔe la, ebia be woawɔ ɖe ASTM D7803 kple SSPC-SP 16 ƒe anyigbadzinuwo dzadzraɖo ŋuti mɔfiamewo dzi pɛpɛpɛ.
1. Asitsatsa Ŋuti Nya: Nukatae Woade Ga Asi Ðe Dɔwɔɖoɖo Si Me Wozãa Nu Le Eve Ŋu Me?
Kadodo si le atikekui siwo wotsɔ blaa nu kple zinc ƒe ƒuƒoƒo dome gɔmesese le vevie ŋutɔ. Èwɔa ametakpɔnu si wɔa dɔ aduadu ne ètsɔ wo ƒo ƒui. Polyester alo epoxy-tu la wɔa dɔ abe mɔxenu sesẽ aɖe ene. Enya tsi, atike sesẽwo, kple ŋutilã me ʋuʋudediwo ɖa. Ne ʋuʋudedi goglo aɖe gbã mɔxenu sia la, zinc si le ete la wɔa dɔ. Enaa anodic takpɔkpɔ si wotsɔ sa vɔe, eye wògblẽa nu gbã be gakpo ƒuƒlu la nanɔ dedie tso gbeɖuɖɔ me.
Mɔnu sia si me wowɔa nu eve le la ɖea agbenɔƒe ƒe beléle na ɣeyiɣiwo dzi kpɔtɔna ŋutɔ. Le dzɔdzɔme nu la, ga si wozãna ɖe eŋu zi gbãtɔ la lolo wu nusi wotsɔ blaa nu zi ɖeka. Gake beléle na xɔtuɖoɖo siwo yia edzi dzi ɖeɖe kpɔtɔ vevie na be xɔ eve ƒe mɔ̃wo mexɔa ga geɖe o. Xɔtuɖaŋuwo kple xɔtuɖaŋudɔwo kpɔa viɖe geɖe tso ɣeyiɣi didi sia si nɔa anyi didina me. Ƒã hafi ahiã be nàtɔ te dɔwɔwɔwo le esi wogbugbɔ tae alo gbeɖuɖɔ dzi ɖeɖe kpɔtɔ le mɔ si mèle mɔ kpɔm na o ta.
Nusiwo li tegbee hã wɔa akpa vevi aɖe le egbegbe nɔnɔme tɔxɛwo me. Aŋɔ si wotsɔ blaa nu la naa Volatile Organic Compound (VOC) si dona le lãme na ame la medea naneke kura o. Gakpe ɖe eŋu la, woate ŋu alé atike ɖesiaɖe si wotsɔ ƒu gbe wògbɔ eme la bɔbɔe eye wogbugbɔ zãe. Nusiwo wotsɔ aŋɔ ƒoe zazã ate ŋu akpe ɖe LEED ƒe ɖaseɖigbalẽ ƒe kafukafuwo ŋu tẽ, vevietɔ le xɔme nutome ƒe nyonyome gome. Ðoɖowɔlawo dea asixɔxɔ xɔtunu siawo siwo me ya si mebɔ o le ŋu ŋutɔ.
Mlɔeba la, duplex-ɖoɖowo naa nusiwo woate ŋu azã le mɔ vovovowo nu ale gbegbe. Dɔdamɔnua dzidzea nu nyuie le dɔa ƒe lolome vovovowo me. Àte ŋu atsɔe awɔ gakpo gã siwo wotsɔ batch-coated structural steel beams. Àte ŋu azãe ɖe continuous hã ŋu galvanized gakpo coil dɔwɔwɔ. Adzɔnuwɔƒe geɖe siwo wowɔna le wo ɖokui si ɖoa ŋu ɖe eŋu galvanized steel sheet materials siwo va ɖoa wo ŋu do ŋgɔ eye wole klalo na wo wɔwɔ.
2. Mɔ̃ɖaŋununya ƒe Kuxi Veviwo: Outgassing kple Reactive Zinc
Aŋɔ sisi ɖe ga si wotsɔ galvanized wɔe si me wodea dzoe dzi hea mɔ̃ɖaŋununya ƒe mɔxenu tɔxɛwo vɛ. Nya si ɖe dzesi wue nye ya si dona le ame ŋu ƒe nudzɔdzɔa. Le galvanizing-dɔwɔwɔ me la, kotoku siwo me tsi kple gas le siwo wokpɔna le nusuekpɔmɔ̃ me la gena ɖe zinc si me ʋuʋudedi le la me. Emegbe la, akpaa gena ɖe dzodoƒe si me wowɔa dɔ le be wòatsɔ aŋɔ si wotsɔ blae la aƒu gbe. Zi geɖe la, dzodoƒe sia ƒe dzoxɔxɔ anɔ abe 180°C (356°F).
Ne ga la le dzo dam la, ya siwo xaxa la kekena kabakaba. Wozia wo dzi yia gota to polyester alo epoxy ƒe ƒuƒoƒo si le ƒoƒom la me. Sisi ŋutasesẽtɔe sia naa kuɖɔ, do, kple do siwo woate ŋu akpɔ. Pinholes siawo gblẽa atsyɔ̃ɖoɖo ƒe nuwuwu. Nusi gavloe wue nye be wonaa mɔ siwo dzi tsi tona tẽ be wòato mɔxenu si nye aŋɔ si kpɔa ame ta la ŋu.
Kuxi gã bubu ku ɖe zinc oxide ƒe mɔ̃ si womekpɔna o ŋu. Zinc nye ga si wɔa dɔ ŋutɔ. Edzea oxidation gɔme enumake ne edo go yame ƒe oxygen. Ame akpa gãtɔ dea dzesi 'white rust' be enye zinc oxidation ƒe dzesi. Gake zinc oxide ƒe ƒuƒoƒo siwo wokpɔna le nusuekpɔmɔ̃ me la dzɔna ɣeyiɣi didi aɖe hafi gbeɖuɖɔ ɣiwo dona. Nusi womekpɔna o sia wɔa dɔ abe ke ƒe akpoxɔnu si wokpɔna le nusuekpɔmɔ̃ me ene. Egblẽa aŋɔ si wotsɔ blae la keŋkeŋ ne womewɔ atike nɛ o.
Tsitsi ƒe tɔtrɔa gagblẽa wò dzadzraɖomɔnua me ɖe edzi. Ele be wò mɔnu natrɔ le ƒe si tututu zinc la xɔ nu. Ga yeye si wotsɔ galvanized wɔe (si mexɔ gaƒoƒo 48 haɖe o) hiã be woawɔ eŋudɔ le mɔ bubu kura nu wu zinc si ƒe akpa aɖe yame ƒe nɔnɔme gblẽ (si woɖe ɖe go vaseɖe ƒe ɖeka). Zinc yeye hiã na anyigba ƒe nɔnɔmetata si me adãwɔwɔ le. Zinc si yame ƒe nɔnɔme gblẽ bia be nàkɔ atikewo ŋu vevie be nàɖe hydroxide kple carbonates sesẽwo ɖa hafi nàdze eƒe nɔnɔmetatawo wɔwɔ gɔme gɔ̃ hã.
3. ASTM D7803 Dzadzraɖo ƒe Dzidzenuwo na Afɔkuwo Dzi Ðeɖe Akpɔtɔ
Be nàxe mɔ ɖe delamination kple pinholing nu la, ele be nàwɔ ɖe afɔɖeɖe siwo tututu wogblɔ le ASTM D7803 me dzi. Dzidzenu sia gblɔ be woadzra galvanized coatings siwo wotsɔ dzoxɔxɔ de tsii ɖo nyuie hena powder zazã.
Afɔɖeɖe 1: Atikewo Kple Atikewo Ŋuti Kɔkɔe
Ele be nàɖe ɖiƒoƒo siwo katã le lãmenugbagbeviwo me, amiwo, kple amiwo ɖa gbã. Ŋutilã ƒe gbɔdzɔgbɔdzɔwo abe ƒoƒo, duƒuƒu, kple zinc ƒe sisi ene hã bia be woatu wo nyuie. Zã alkaline si gbɔdzɔ alo acidic solution siwo gbɔdzɔ hena atikewo kɔklɔ. Mègazã atike sesẽ siwo gblẽa nu le ame ŋu gbeɖe o. Aʋala siwo ɖea awuwo ɖa la alɔ zinc si kpɔa ame ta la keŋkeŋ. Klɔ edzi nyuie ɣesiaɣi kple tsi dzadzɛ eye nàkpɔ egbɔ be eƒu keŋkeŋ hafi nàyi edzi.
Afɔɖeɖe 2: Anyigba ƒe nɔnɔmetata (SSPC-SP 16) .
Zinc-nu si le gbadzaa bliboe mate ŋu alé powder-ta o. Ele be nàwɔ nusuekpɔmɔ̃ ƒe seke ƒe nɔnɔmetata. Gake standard heavy abrasive blasting gblẽa galvanized gakpo. Eɖea zinc la ɖa le gakpoa ƒe gɔmeɖoanyia dzi tututu.
Ke boŋ, SSPC-SP 16 ƒe dzidzenua bia be woawɔ 'Sweep Blasting' mɔnu tɔxɛ aɖe. Ele be dɔwɔlawo nazã nusiwo menye ga o, siwo ƒe sesẽme mede o (Mohs scale hardness ≤ 5). Glass alo walnut ƒe go siwo wogbã la wɔa dɔ nyuie. Ele be blast nozzle la nanɔ dzogoe si me goglo 30° va ɖo 60° dzi. Nuwɔna sia si wotsɔa ŋuɖɔɖɔɖo kplɔa nu la ƒoa nu ɖe edzi bɔbɔe. Ewɔa sekeƒe siwo hiã evɔ meɖea zinc dzadzɛ (Eta) ƒe akpa vevi si le etame la ɖa o. Dɔwɔƒe aɖewo hã zãa atikewo ƒe nɔnɔmetatawo to zinc alo iron phosphate ƒe atikewɔwɔwo dzi abe mɔnu si sɔ si woate ŋu azã ɖe sweep blasting teƒe ene.
Afɔɖeɖe 3: Dzoxɔxɔ ƒe gas ɖeɖeɖa (Do ŋgɔ na abolomeƒe) .
Esiae nye wò afɔɖeɖe vevi si nàwɔ atsɔ akpɔ afɔku dzi be nàxe mɔ ɖe ya si dona le eme nu. Hafi nàtsɔ atike ɖesiaɖe asisi ɖe eŋu la, ele be nàɖa gakpo si le ƒuƒlu si ƒe nɔnɔme le abe lãfu ene la do ŋgɔ. Ele be woaɖo dzodoƒea ƒe dzoxɔxɔ 30°C (~50°F) wòakɔ wu dzoxɔxɔ mamlɛtɔ si woatsɔ awɔ atikekui la. Ele be nàlé ga la ɖe dzoxɔxɔ si kɔ alea nu gaƒoƒo ɖeka ya teti.
Dzoxɔxɔ sesẽ sia zia tsi kple ya siwo xaxa la dzi be woakeke eye woasi esime ga la gakpɔtɔ le ƒuƒlu. Kaka nàtsɔ atikekui ŋutɔŋutɔ asisi ɖe eŋu la, ʋuʋudedi suesuesueawo ƒuƒlu keŋkeŋ. Womawó le dɔyɔyɔ ƒe akpa mamlɛtɔ me o.
Afɔɖeɖe 4: Dɔwɔwɔ Kaba (Ɣeyiɣi ƒe Fesre) .
Ɣeyiɣi nye wò futɔ gãtɔ ne anyigbaa dzi kɔ eye wowɔ profile ko. Èdze ŋgɔ ɣeyiɣi ƒe fesre sesẽ aɖe be nàtsɔ anti-outgassing primer kple topcoat mamlɛtɔ asisi ɖe eŋu. Adzɔnuwo ƒe dzidzenuwo bia be woawɔ wo ŋudɔ le gaƒoƒo 12 me tso esime wowɔ wo ŋuti nyatakakawo. Le mɔ nyuitɔ nu la, ele be nàwu dɔ bliboa nu le dɔwɔwɔ ƒe ɣeyiɣi ɖeka tututu me. Ne èhe ezazã ɖe megbe la, ana zinc oxide si womekpɔna o la trɔna, si ana wò nuléle ɖe nu ŋu nagblẽ enumake.
Kpuie ƒe Tabla: ASTM D7803 Dzadzraɖo ƒe Sisi
Afɔɖeɖe |
Dɔwɔwɔ ƒe Ŋkɔ |
Afɔɖeɖe Vevitɔ |
Taɖodzinu Gbãtɔ |
1 |
Atikewo Ŋuti Kɔkɔe |
De alkaline/acidic solution siwo gbɔdzɔ la eme |
Ðe amiwo, nugbagbevi siwo me agbe mele o, kple zinc ŋutɔŋutɔ siwo le tsia me ɖa. |
2 |
Sweep Blasting (Tɔdzisasrã). |
Zã Mohs ≤ 5 abrasives le 30°-60° ƒe dzogoe dzi |
Wɔ mɔ̃ ƒe seke ƒe nɔnɔmetata evɔ zinc mabu o. |
3 |
Dzoxɔxɔ ƒe Gasiwo ɖeɖeɖa |
Tsɔe do dzoe le +30°C dzi wu cure temp hena gaƒoƒo 1 |
Zi ya siwo xe mɔ na wo dzi be woaxe mɔ ɖe do siwo woatsɔ axe mɔ na wo le etsɔme nu. |
4 |
Dɔwɔwɔ Kaba |
Tsɔ atikekui de eme le gaƒoƒo 12 me |
Xɔ mɔ na zinc oxide si womekpɔna o be wòagagblẽ nu le nuléle ŋu o. |
4. Galvanized vs. Galvannealed Steel: Nusiwo Woatsɔ Awɔ Nu Nyuitɔ Gbɔgblɔ
Nusiwo woatsɔ awɔ dɔe ƒe nyatakakawo kpɔa ŋusẽ ɖe wò duplex-mɔ̃a ƒe dzidzedzekpɔkpɔ dzi vevie. Ele be nàse vovototo si le ga si wotsɔa galvanized wɔe si wotsɔa dzoxɔxɔ dea tsii si wozãna ɖaa kple gakpo si wotsɔ galvannea wɔe dome gɔme. Galvanizing dzodzoe si wozãna ɖaa naa zinc si le etame si le dzadzɛ si to vovo. Zi geɖe la, woɖea spangle ƒe nɔnɔme si woate ŋu akpɔ la fiana. Galvannealing tsɔa dzoxɔxɔ (dzoxɔxɔ) ƒe mɔnu bubu kpena ɖe eŋu le zinc tsilele vɔ megbe teti.
Dzoxɔxɔ sia si sɔ gbɔ wu nana gayibɔ si tso gakpo si le ete la kaka yia dzi yia zinc la me. Ewɔa zinc-iron ƒe kpe sesẽ aɖe. Esia trɔa nukpɔkpɔ ƒe dzedzeme wòzua matte grey nuwuwu. Vevietɔ wu la, etrɔa alesi nusi wotsɔ blaa anyigbaae la ŋutɔ.
Ga si wotsɔ galvannealed wɔe la ƒe akpa si le dzɔdzɔme nu la nye micro-rough. Ewɔa dɔ abe ƒumebɔbɔ si wokpɔna le nusuekpɔmɔ̃ me ene. Amadede kple atikekui siwo wotsɔ blaa nu sia bɔbɔe wu sã. Esia wɔnɛ be zi geɖe la, nu siwo wotsɔ galvannea wɔe la mehiãa be woatsɔ atutu nu ŋu sesĩe kura o ne wotsɔe sɔ kple nusiwo wotsɔa dzo ƒua gbe tsã. Afɔku si le delamination me dzi ɖena kpɔtɔna ŋutɔ.
Ele be nuƒlelawo nabu vovototo siawo ŋu nyuie le nuƒlelawo didi me. Dzidzenu si wogblɔna tẽ Galvanized Steel na xɔtuɖaŋu ƒe nɔnɔme siwo kpekpe le afisiwo zinc ƒe titrime si woatsɔ asa vɔe si sɔ gbɔ wu hiã le. Zi geɖe la, wolɔ̃a Gake ne èle mɔ̃wo ƒe akpa siwo wowɔna pɛpɛpɛ alo ʋu ƒe akpa aɖewo wɔm la, gblɔ nusiwo wotsɔ galvannealed wɔe ɖe eteƒe. Enaa woate ŋu ata nu nyuie wu tẽ tso fli dzi, si ɖea wò atikewo dzadzraɖo ƒe gazazãwo dzi kpɔtɔna.
Nusiwo Wotsɔ Sɔ Kple Wo Nɔewo ƒe Tabla
Ŋutinu |
Ga si Wotsɔ Galvanized Wɔe si Woɖo Ðe Ðoɖo Nu |
Ga si Wotsɔ Galvannealed Wɔe |
Nuƒoƒu |
Zinc dzadzɛ ƒe gota gome (Eta ƒuƒoƒo) . |
Zinc-gayibɔ ƒe ƒuƒoƒo si le etame |
Dzedzeme |
Klẽna, zi geɖe la, woɖea spangle si wokpɔna fiana |
Matte grey, si ƒe nɔnɔme sɔ |
Powder ƒe Ƒomedodo |
Ebia be woawɔ sweep blasting profile sesẽ |
Le dzɔdzɔme nu la, micro-rough; gɔmedzedze ƒe adhesion si de ŋgɔ wu |
Nyuitɔ Kekeake Na |
Xɔtuɖaŋu kpekpewo, vɔsasa ƒe ƒuƒoƒo si le kpekpem ƒe hiahiãwo |
Fli siwo wowɔna le wo ɖokui si, nusiwo wota ɖe atsyɔ̃ɖoɖo gã me |
5. Nudzrala ƒe Dzodzro: Alesi Nàwɔ Akɔntabubu ƒe Dɔwɔhati Kpuie
Aŋɔsisi ɖe zinc dzi bia dɔwɔnu tɔxɛwo kple mɔ̃ɖaŋununya ŋuti sidzedze deto. Zi geɖe la, aŋetu siwo wozãna le mɔ gbadza nu gblẽa nu le akpa siwo wotsɔ galvanized wɔe ŋu elabena wowɔa nu ɖe wo ŋu abe gakpo ƒuƒlu ene. Ele be nàda amesiwo ate ŋu adzra nuawo kpɔ vevie hafi atsɔ nubabla aɖe ana.
Bia QA ƒe nya vevi siawo le wò numekuku ƒe ɖoɖoa me:
Ðe dzodoƒe tɔxɛ siwo wotsɔna ɖaa nu do ŋgɔ siwo ate ŋu aɖo dzoxɔxɔ si hiã si me ya dona le la le wo sia? Ðeko fiase sue geɖe mekpɔa dzodoƒe ƒe ŋutete be wòaɖo 30°C wu woƒe dzoxɔxɔ si wozãna tsɔ daa dɔe o.
Ðe galvanizing kple powder-coating dɔwɔƒewo le teƒe ɖeka loo alo wowɔ ɖeka kplikplikplia? Nuwo ɖoɖoɖa le vevie. Ne eva hiã be nudzrala aɖe natsɔ zinc ƒuƒlu la atsɔ agbatsɔʋu ayi dukɔa me godoo la, anɔ eme be woato fesre sesẽ si wotsɔ blaa nu gaƒoƒo 12 la ŋu.
Ðe wozãa mɔ̃ siwo ŋu woɖo kpee be wotsia ya si dona le lãme na amea? Nudzrala siwo dzraa nu nyuiwo tsɔa nu tɔxɛ siwo wotsɔa ga la ƒoa nui esime ga la gakpɔtɔ le dzo dam. Esia xea ʋuʋudediawo nu hafi amadede mamlɛtɔ si wotsɔ blaa nu la yia edzi.
Kpɔ nyuie le aflaga dzĩ siwo ava enumake ŋu. Ne nudzrala aɖe do susua ɖa be woate ŋu atsyɔ gakpo yeye siwo wotsɔ galvanized wɔe enumake evɔ womatsɔ sweep blasting o la, ke dzo. Ne wogblɔ be dzoxɔxɔ ƒe ya ɖeɖeɖa nye ga bubu si mehiã o la, ke di zɔhɛ bubu. Mɔ kpui siwo dzi woato awɔ dɔa hea nusiwo wotsɔ blaa nu la ɖa ɣesiaɣi.
Nyanuwuwuw
Powder si wotsɔ tsyɔ gakpo si wotsɔ galvanized wɔe dzi naa duplex-ɖoɖo si wɔa dɔ ŋutɔ, gake egakpɔtɔ nye nusi metsɔna kea ame kura o. Màte ŋu aŋe aɖaba aƒu ya siwo le kekem ɖe enu ƒe dzɔdzɔmeŋusẽŋununya alo zinc si wɔa dɔ ƒe atikewɔwɔ dzi o. Ne woto anyigba dzi dzadzraɖo ŋu la, ehea atsyɔ̃ɖoɖo ƒe kpododonu kple ametakpɔnu si gblẽa nu le xɔxlɔ̃ ŋu vɛ godoo.
Wɔ afɔɖeɖe siwo gbɔna siwo ku ɖe afɔɖeɖe siwo gbɔna ŋu na wò dɔ siwo gbɔna:
Do ASTM D7803 kple SSPC-SP 16 dzadzraɖo ƒe nudidiwo ɖe wò Aɖaŋuɖoɖowo Biabia (RFPs) me tẽ.
Bia gaƒoƒo 1 ƒe ya si woɖena do ŋgɔ na abolomegba ƒe kpeɖodzi si woŋlɔ ɖi tso amesi nètia gbɔ.
Kpɔ egbɔ be kadodo si me kɔ, si le ɣeyiɣi ŋutɔŋutɔ me le hot-dip galvanizer kple powder applicator dome be nàka ɖe edzi be woɖo gaƒoƒo 12 ƒe fesre si wotsɔ dea tsia me gbɔ.
Kpɔ egbɔ be sweep blasting katã zãa abrasives siwo ƒe sesẽme mede o tsɔ kpɔa zinc mɔxenu vevi la ta.
Nyabiasewo ƒe Nyabiasewo
Q: Ðe gakpo si wotsɔ galvanized si wotsɔ aŋɔ ƒoe la xɔa dzoa?
A: Ete ŋu nɔa te ɖe gbeɖuɖɔ nu ŋutɔ. Zi geɖe la, ne woɖe nusi wotsɔ blae la goglo to mɔxenua kple zinc-gbadzɛa siaa ŋu ko hafi gbeɖuɖɔ dzɔna. Ate ŋu adzɔ hã ne dzoxɔxɔ sesẽ si wu 250°C (480°F) me nɔnɔ atraɖii na zinc si le ete la do kpo dɔwɔwɔ.
Q: Ðe nàte ŋu atsɔ aŋɔ atsyɔ gakpo xoxo siwo wotsɔ galvanized wɔe siwo yame ƒe nɔnɔme gblẽ la dzia?
A: Ɛ̃, gake ebia be woatsɔ atikewo akɔ eŋu si kpekpe wu sã. Ele be nàzã alkaline alo acidic solution tɔxɛwo atsɔ aɖe zinc hydroxides kple carbonates (patina ɣia) ɖa bliboe hafi woate ŋu awɔ ga la ƒe nɔnɔmetata dedie ahaɖae do ŋgɔ.
Q: Nukae dzɔna ne èdzo le abolomeƒe si wowɔna do ŋgɔ na abolo ɖaa dzi?
A: Ya kple tsi si xaxa la ado sesĩe le atikekui mamlɛtɔ ƒe dɔyɔyɔ me. Esia wɔnɛ be wotsɔa nu si wotsɔa nu ƒoa nui, si ŋu wogblẽ nu le, si yɔ fũ kple do siwo woate ŋu akpɔ. Do siawo siwo me tsi le la toa mɔxenu si me wodea aŋɔe la ŋu keŋkeŋ, si ɖua taɖodzinu si le duplex-mɔ̃a ŋu dzi.
