Igwe galvanized abụrụla isi nkuku n'iwu ụlọ, nrụpụta na ngwa ụlọ ọrụ dị iche iche n'ihi nkwalite ọ na-eguzogide corrosion. Usoro nke galvanization gụnyere mkpuchi ígwè na mkpuchi mkpuchi nke zinc iji gbochie nchara. Otú ọ dị, ajụjụ a na-ajụkarị na-ebilite: ígwè galvanized ọ̀ na-agba nchara? Ịghọta njirimara nke igwe galvanized dị oké mkpa maka ndị injinia, ndị na-ese ụkpụrụ ụlọ, na ndị ọkachamara ụlọ ọrụ na-adabere na ịdịte aka ya. Isiokwu a na-abanye n'ime mgbagwoju anya nke ígwè galvanized, na-enyocha nguzogide corrosion ya, ọnọdụ ọ nwere ike ime nchara, na omume kachasị mma maka iji ya na gburugburu dị iche iche. Site n'inyocha ụkpụrụ dị n'okpuru nke galvanization na ịdị irè ya, anyị bu n'obi ịnye nyocha zuru oke nke ihe a na-ejikarị eme ihe.
Maka ndị nwere mmasị na nkọwa zuru ezu na ngwa nke Galvanized Steel , ịghọta omume ya na ọnọdụ dị iche iche dị mkpa maka ịme mkpebi ziri ezi na nhọrọ ihe.
Usoro Galvanization na usoro nchekwa ya
Iji ghọta ma igwe galvanized nwere ike ịta nchara, ọ dị mkpa ibu ụzọ ghọta usoro galvanization n'onwe ya. Galvanization na-agụnye imikpu ígwè n'ime bat nke zinc a wụrụ awụ na okpomọkụ gburugburu 450°C (842°F), usoro a maara dị ka galvanizing na-ekpo ọkụ. Ihe mkpuchi zinc na-arụ ọrụ dị ka ihe mgbochi anụ ahụ, na-egbochi ihe ndị dị na gburugburu ebe obibi ịkpọtụrụ ihe nchara ígwè. Ọzọkwa, zinc na-enye nchebe ịchụàjà; mgbe mkpuchi ahụ mebiri emebi, zinc na-emebi nke ọma na nchara n'ihi mmeghachi omume ya dị elu, si otú a na-echebe ígwè ahụ site na nchara.
Dị ka American Galvanizers Association si kwuo, oyi akwa zinc nwere ike ịgbatị ndụ nke ihe owuwu ígwè ruo afọ 50 n'ime ime obodo na afọ 20-25 na gburugburu osimiri ma ọ bụ ụlọ ọrụ mmepụta ihe ebe ọnụ ọgụgụ corrosion dị elu. Ịdị irè nke usoro nchebe na-adabere n'ọtụtụ ihe, gụnyere ọkpụrụkpụ nke mkpuchi zinc, ọnọdụ gburugburu ebe obibi, na ọnụnọ nke ndị na-emebi emebi.
Ihe nwere ike ibute nchara na igwe galvanized
Ọnọdụ gburugburu
Ọ bụ ezie na a na-emepụta ígwè galvanized iji guzogide corrosion, ụfọdụ ọnọdụ gburugburu ebe obibi nwere ike ime ka mmebi nke mkpuchi zinc dịkwuo ngwa, n'ikpeazụ na-eduga nchara nke nchara nchara. Oke iru mmiri, mmiri ozuzo acid, ikpughe mmiri nnu, na mmetọ dị ka sọlfọ dioxide nwere ike imebi oyi akwa zinc na-echebe ya. Na gburugburu mmiri, dịka ọmụmaatụ, ọnụnọ ion chloride na-abawanye ụba nke corrosion zinc nke ukwuu. Nnyocha nke US Federal Highway Administration na-egosi na ihe owuwu ígwè galvanized na mpaghara ndị dị n'ụsọ oké osimiri nwere ike ịnweta ọnụ ọgụgụ dị elu nke corrosion n'ihi nnu na mmiri mmiri.
Mmebi arụrụ arụ na iyi
Mmebi anụ ahụ na mkpuchi zinc, dị ka ncha, abrasion, ma ọ bụ mmetụta, nwere ike ikpughe nchara dị n'okpuru na ihe ndị na-emebi emebi. Ọ bụ ezie na ụdị ịchụ àjà nke zinc nwere ike ichebe obere akụkụ nke ígwè ekpughere, mmebi dị ukwuu nwere ike imeri mmetụta nchebe a. Nyocha na mmezi mgbe niile dị mkpa, karịsịa na ngwa ebe ígwè nwere ike ịdaba na nrụgide ọrụ.
Ngosipụta kemịkalụ
Ikpughe na ụfọdụ kemịkalụ nwere ike mee ka usoro mmebi ahụ dịkwuo ngwa. Dịka ọmụmaatụ, acids, alkalis, na ndị na-emepụta ihe na-eme ka ọ dị ike na-emeghachi omume na zinc, na-emebi oyi akwa nchebe. Gburugburu ụlọ ọrụ ebe mkpughe kemịkalụ juru ebe niile chọrọ usoro nchebe ọzọ ma ọ bụ ihe ọzọ iji hụ na ọ dị ogologo ndụ.
Nnyocha ikpe na-egosi nrụrụ na igwe galvanized
Ihe atụ ndị mere eme na-egosi otú ígwè galvanized nwere ike isi na-agba nchara n'ọnọdụ ụfọdụ. N'ihe ọmụmụ metụtara pipeline ígwè galvanized n'ime obodo dị n'ụsọ oké osimiri, ahụrụ nrụrụ ngwa ngwa n'ihi ikpughe ikuku na-ejupụta nnu mgbe nile na oke iru mmiri. N'agbanyeghị mkpuchi mkpuchi nke mbụ, gburugburu ebe obibi siri ike belatara ndụ a na-atụ anya na pipeline site na 30%. Ihe atụ ọzọ bụ ihe owuwu ígwè galvanized na mpaghara ụlọ ọrụ mmepụta ihe nwere sọlfọ dioxide dị elu. Ọnọdụ acidic mere ka e nwee zinc sulfate, na-ebelata oyi akwa nchebe ma mee ka nchara nchara na nchara dị n'okpuru.
Na-enyocha ọnụego nrụrụ na gburugburu dị iche iche
Iji nyochaa arụmọrụ nke igwe galvanized na gburugburu dị iche iche, a na-eduzi ọmụmụ ọnụọgụ corrosion n'ụwa nile. N'ime ime obodo nwere mmetọ dị ala na ọnọdụ akọrọ, ọnụ ọgụgụ corrosion nke mkpuchi zinc dị ntakịrị, na-abụkarị ihe na-erughị 1 µm kwa afọ. N'ụzọ dị iche, gburugburu ụlọ ọrụ mmepụta ihe na mmiri nwere ike igosipụta ọnụego corrosion karịrị 4µm kwa afọ. Data nke International Organisation for Standardization (ISO) anakọtara na-enye ntuziaka maka ịkọ ogologo ndụ nke igwe galvanized dabere na nhazi gburugburu ebe obibi. Dịka ọmụmaatụ, na gburugburu ebe a na-ekewa dị ka C3 (ime obodo na ụlọ ọrụ mmepụta ihe nwere mmetọ sọlfọ dioxide na-agafeghị oke), ndụ a na-atụ anya na mbụ ga-edozi maka mkpuchi zinc nke 85 µm bụ ihe dịka afọ 20-40.
Usoro mgbochi na omume kacha mma
Nhọrọ ihe kwesịrị ekwesị
Ịhọrọ ụdị mma nke galvanized ígwè na mkpuchi mkpuchi kwesịrị ekwesị dị oke egwu. Ibu mkpuchi, nke a na-egosipụtakarị na gram kwa square mita (g/m²), na-ekpebi ọkwa nchebe. Maka gburugburu ebe ndị nwere ọnụ ahịa nrụrụ dị elu, ịkọwapụta mkpuchi zinc dị arọ nwere ike ịkwalite ịdịte aka. Standardkpụrụ dị ka ASTM A123 na-enye ntuziaka maka ọkpụrụkpụ mkpuchi dabere na ngwa na mkpughe gburugburu ebe a na-atụ anya ya.
Ihe mkpuchi mkpuchi na agba
Itinye ihe mkpuchi nchebe ọzọ, dị ka agba agba ma ọ bụ ntụ ntụ, n'elu akwa galvanized nwere ike ịgbatị ndụ ígwè ahụ nke ukwuu. Usoro duplex a na-ejikọta nchedo corrosion nke zinc na ihe mgbochi mgbochi nke mkpuchi. Dị ka nchọpụta e bipụtara na Journal of Protective Coatings and Linings si kwuo , usoro duplex nwere ike ime ka ndụ nke galvanized ígwè dịkwuo elu site na 1.5 ruo 2.5 ugboro ma e jiri ya tụnyere ígwè galvanized naanị.
Nleba anya na nlekọta mgbe niile
Nnyocha oge ụfọdụ na-enyere aka ịchọpụta ihe ịrịba ama mbụ nke mmebi ma ọ bụ mmebi mkpuchi. Omume nlekọta dị ka ihicha, eserese imetụ aka, na ịrụzi ebe mebiri emebi nwere ike igbochi ọganihu nke corrosion. Ịmejuputa usoro nhazi dị mkpa karịsịa maka ụlọ ndị ekpughere n'ọnọdụ siri ike.
Mmetụta akụ na ụba nke Galvanized Steel Corrosion
Nbibi nke ihe owuwu nchara nwere mmetụta akụ na ụba dị ukwuu, gụnyere ịrị elu ụgwọ mmezi, mfu nke nguzosi ike n'ezi ihe, yana ihe egwu nchekwa nwere ike ime. Otu National Association of Corrosion Engineers (NACE) na-eme atụmatụ na ọnụ ahịa corrosion karịrị 3% nke GDP zuru ụwa ọnụ kwa afọ. Iji nchara galvanized na usoro nchebe kwesịrị ekwesị nwere ike ibelata ọnụ ahịa ndị a site na ịgbatị ndụ ọrụ nke ihe owuwu yana ibelata mkpa ndozi ma ọ bụ ndochi. Ntinye ego n'ime igwe galvanized dị elu yana mmezi mgbochi nwere ike iwepụta nchekwa ogologo oge yana nkwalite nchekwa.
Ntụle atụnyere na ụzọ nchebe corrosion ndị ọzọ
Ụzọ nchebe corrosion ọzọ gụnyere iji igwe anaghị agba nchara, alloys na-eguzogide corrosion, eserese, na nchebe cathodic. Usoro ọ bụla nwere uru na njedebe ya. Igwe anaghị agba nchara na-enye ezigbo nguzogide corrosion mana na ọnụ ahịa dị elu nke ukwuu. Eserese na-enye nchebe ihe mgbochi mana ọ na-achọ nlekọta mgbe niile na ọ nwere ike ọ gaghị enye nchebe ịchụ aja dịka zinc. Usoro nchebe Cathodic dị irè mana a na-ejikarị eme ihe maka nnukwu ụlọ dịka pipeline ma na-achọ nlekota na-aga n'ihu. Galvanized ígwè na-eme ka nguzozi dị n'etiti ọnụ ahịa na arụmọrụ, na-enye nchebe corrosion dị irè maka ọtụtụ ngwa ngwa.
Ọganihu na Teknụzụ Galvanization
Ọganihu na-adịbeghị anya na teknụzụ galvanization chọrọ ịkwalite nguzogide corrosion nke igwe galvanized. Usoro dị ka galvannealing, nke na-agụnye ọgwụgwọ okpomọkụ mgbe galvanization gasịrị, na-emepụta ihe mkpuchi zinc-iron alloy nke na-enye nkwụsi ike nke agba na nkwụsị nke abrasion. Na mgbakwunye, mmepe nke mkpuchi zinc-aluminom-magnesium pụrụ iche egosila arụmọrụ dị elu na gburugburu ebe ike ike. Otu nnyocha nke International Zinc Association mere gosiri na mkpuchi ndị a dị elu nwere ike inye ihe ruru okpukpu atọ ihe mgbochi corrosion nke omenala na-ekpo ọkụ na-ekpo ọkụ.
Ụkpụrụ na nkọwapụta na-achị nchara galvanized
Ọtụtụ ụkpụrụ mba ụwa na-akọwapụta ihe achọrọ maka igwe galvanized, na-eme ka nkwekọ na ntụkwasị obi na ngwa ya. Ụkpụrụ isi gụnyere:
ASTM A123 / A123M : Ekpuchi ihe achọrọ maka mkpuchi zinc (hot-dip galvanized) na ngwaahịa ígwè na ígwè.
TS EN ISO 1461 : Na-akọwapụta njirimara izugbe nke mkpuchi na ụzọ nnwale maka mkpuchi galvanized na-ekpo ọkụ n'elu ígwè arụpụtara na ihe nchara.
TS EN 1179 ọkọlọtọ European maka zinc na zinc alloys maka galvanizing
Irube isi n'ụkpụrụ ndị a na-eme ka nchara galvanized na-emezu ihe dị mkpa dị mma maka nguzogide corrosion, mkpuchi mkpuchi, na ihe eji arụ ọrụ.
Echiche ndị ọkachamara na echiche ụlọ ọrụ
Ndị ọkachamara ụlọ ọrụ na-egosipụta mkpa ọ dị ịtụle ọnọdụ gburugburu ebe obibi mgbe a na-akọwapụta ígwè galvanized. Dr. Michael Thompson, onye injinia na-ahụ maka igwe na-ahụ maka corrosion, na-ekwu na 'Ọ bụ ezie na ígwè galvanized na-enye nchebe dị mma megide nchara, ọrụ ya na-adabere na gburugburu ebe obibi na usoro nhazi. Nhọrọ kwesịrị ekwesị na nhazi ngwa ngwa bụ isi ihe na-eme ka ogologo ndụ ya dịkwuo elu.'
Ndị na-emepụta ihe na-emesi ike mkpa agụmakwụkwọ dị na njedebe na iji ígwè galvanized kwesịrị ekwesị. Sarah Johnson, Director nke Product Development na a na-eduga ígwè emeputa, na-ekwu, 'Ịghọta ihe ndị na-emetụta galvanized ígwè dị oké mkpa maka injinia na ndị na-emepụta ihe. Site aligning ihe onwunwe nhọrọ na gburugburu ebe obibi ọnọdụ, anyị nwere ike hụ na ogologo ndụ na ntụkwasị obi nke ígwè owuwu.'
Ọmụmụ ihe: Steel galvanized na ọrụ akụrụngwa
Ojiji nke galvanized ígwè n'ime nnukwu akụrụngwa akụrụngwa na-egosipụta uru na ihe ịma aka ya bara uru. Dị ka ihe atụ, àkwà mmiri nke ọdụ ụgbọ mmiri Sydney na-agụnye ihe ndị e ji ígwè rụọ bụ́ ndị nagideworo ule nke oge kemgbe e wuru ya na 1932. Nlekọta anya na gburugburu ebe obibi bụ ihe dị mkpa iji chekwaa ihe owuwu ígwè ahụ. N'aka nke ọzọ, nrụrụ aka nke galvanized nchara na akụkụ ụfọdụ nke San Mateo-Hayward Bridge dị na California gosipụtara mkpa ọ dị ịhọrọ ihe kwesịrị ekwesị na ihe nchebe na gburugburu mmiri.
Ntuziaka bara uru maka iji igwe galvanized
Atụmatụ imewe
Ịmepụta ihe owuwu nwere mgbochi corrosion n'uche gụnyere ikwe ka mmiri na-asọpụta kwesịrị ekwesị iji gbochie ikpokọta mmiri, na-ezere kọntaktị na ọla ndị yiri ya nke nwere ike ịkpata corrosion galvanic, na ibelata oghere ebe ihe ndị na-emebi emebi nwere ike ịgbakọta. Ojiji nke sealants na nhazi nkwonkwo kwesịrị ekwesị nwere ike ichekwa ihe ndị dị nchara galvanized.
Nchekwa na njikwa
Nchekwa nke ọma na ijikwa ngwaahịa nchara galvanized dị mkpa iji gbochie nrụrụ akaghị aka. Ekwesịrị ịchekwa ihe n'ime ala kpọrọ nkụ, ebe ikuku na-ekuku nke ọma pụọ na ihe ndị na-emebi emebi. N'oge njem na ntinye, a ghaghị ịkpachara anya ka ị ghara imebi mkpuchi zinc.
Mmetụta nke amụma nchịkwa na ojiji igwe galvanized
Iwu nchịkwa na ụkpụrụ gburugburu ebe obibi na-emetụta mmepụta na ntinye nke ígwè galvanized. Mgbochi na iji ihe ndị dị ize ndụ, dị ka ndu na galvanization, emeela ka a nabata usoro mmepụta ihe dị ọcha. Koodu ụlọ na ụkpụrụ ụlọ ọrụ na-akọwakarị ojiji nke galvanized ígwè maka ụfọdụ ngwa, na-akwalite nchekwa na ogologo ndụ. Irube isi n'iwu ndị a dị oke mkpa maka ndị nrụpụta na ndị ọkachamara na-ewu ụlọ.
Echiche Ọdịnihu na ntụzịaka nyocha
Nnyocha na-aga n'ihu na-achọ ịkwalite nguzogide corrosion nke ígwè galvanized. A na-enyocha mkpuchi nke nanotechnology iji mepụta akwa mkpuchi ultrathin nwere ihe na-agwọ onwe ya. Na mgbakwunye, a na-emepe usoro galvanization na gburugburu ebe obibi iji belata mmetụta gburugburu ebe obibi nke ihe ntọhapụ zinc n'oge nrụpụta. Mwekota nke smart corrosion nlekota sistemu iji sensọ agbakwunyere na nchara owuwu nwere ike na-enye ezigbo oge data na mkpuchi iguzosi ike n'ezi ihe, na-enyere ndị proactive mmezi atumatu.
Agụmakwụkwọ na Ọzụzụ maka ndị ọkachamara ụlọ ọrụ
Ịkwalite ntọala ihe ọmụma nke ndị na-ese ụkpụrụ ụlọ, ndị injinia, na ndị ọrụ ihe owuwu banyere ígwè galvanized dị mkpa maka iji ya rụọ ọrụ nke ọma. Mmemme ọzụzụ na nkuzi asambodo nke ndị otu ụlọ ọrụ na-enye, dị ka American Institute of Steel Construction (AISC), na-enye ozi bara uru gbasara akụrụngwa akụrụngwa, nleba anya imewe na omume kacha mma. Ịga n'ihu na agụmakwụkwọ na-enyere ndị ọkachamara aka ịnọgide na-enwe ọganihu nkà na ụzụ na ụkpụrụ na-agbanwe.
Mmechi
Na nchịkọta, ọ bụ ezie na a na-emepụta ígwè galvanized iji guzogide nchara, ọ naghị echebe kpamkpam na corrosion n'okpuru ọnọdụ ụfọdụ. Ihe ndị na-akpata gburugburu ebe obibi, mmebi igwe, na mkpughe kemịkalụ nwere ike imebi oyi akwa zinc na-echebe, na-eduga nchara nchara nke nchara. Site n'ịghọta ihe ndị a na itinye n'ọrụ kachasị mma na nhọpụta, imewe na nhazi ihe, enwere ike ịkwalite ịdịte aka nke ihe owuwu ígwè galvanized. Ọganihu na teknụzụ galvanization na mmesi ike na owuwu na-adịgide adịgide na-eme ka ọrụ nke igwe galvanized siri ike na injinia ọgbara ọhụrụ. Maka ụlọ ọrụ na ndị ọkachamara na-adabere na ya Galvanized Steel , nghọta zuru oke nke ihe onwunwe ya na njedebe dị mkpa maka ịkwalite arụmọrụ na ogologo ndụ.
