Mfiridwumayɛfo, wɔn a wɔyɛ nneɛma, ne akuw a wɔtɔ nneɛma taa bu dade a wɔde galvanized ayɛ no atɛn denam sɛnea ɛte so. Ebia wobɛhwɛ dade foforo bi na woahwɛ kwan sɛ ɛbɛhyerɛn na mfomso biara nni ho. Nanso, aniwa su te sɛ hyerɛn anaa atetesɛm 'spangles' nyɛ nsɛnkyerɛnne a enye a ɛkyerɛ sɛ ɛko tia nsɛe ankasa. Adetɔfo pii di mfomso pow nneɛma a ɛyɛ fitaa a ɛyɛ kusuu, na wodi mfomso susuw sɛ ade a ɛbɔ ho ban no asɛe.
Nokware su a ɛkyerɛ sɛ ɛyɛ papa no hwehwɛ sɛ wɔte sɛnea dade yɛ adwuma no ase. Ɛsɛ sɛ wohwehwɛ base steel chemistry mu na wohwɛ sɛ wodi ASTM so katee sen sɛ wobɛhwehwɛ dwetɛ a ɛwɔ soro kɛkɛ. Sɛ wɔde wɔn ho to nhwehwɛmu a wɔde aniwa hu nkutoo so a, ɛtaa ma adwuma no kyɛ a ɛho ka yɛ den.
Saa akwankyerɛ yi de mfiridwuma ho nhyehyɛe a wɔde kyerɛ sɛnea wɔde aniwa hu nneɛma a wɔde kata so a wɔde galvanized ayɛ ma. Yɛbɛhwehwɛ nea enti a batch kɔla ahorow gu ahorow kɛse bere a wɔreyɛ no mu. Awiei koraa no, wobɛsua sɛnea wode botaeɛ nhwehwɛmu gyinapɛn bɛsi hɔ ama nneɛma a wotumi de ho to so a wobɛnya, ahwɛ sɛ wo dansiɛ adwuma a ɛdi hɔ no bedi mfiridwuma gyinapɛn a ɛyɛ katee so.
Nneɛma Titiriw a Wɔde Fa Kɔ
Sɛnea ɛte ≠ Adwumayɛ: Awiei a ɛyɛ dull, matte grey taa kyerɛ sɛ zinc-iron alloy a ɛyɛ den na ɛyɛ den yiye, na ɛnyɛ ade a wɔde kata so a asɛe.
'Spangle' Atosɛm: Na spangles a ɛda nsow a ɛte sɛ sukyerɛmma a ɛyɛ hyew no yɛ abakɔsɛm mu ade a efi efĩ a kɔbere mu ba; nnɛyi dade a wɔde galvanized ayɛ a ɛne nneɛma a atwa yɛn ho ahyia nhyia no taa yɛ nea ɛyɛ mmerɛw na ɛnyɛ nea wɔakyerɛw so pii.
Sɛ Wɔhwehwɛ sɛ Wɔde Nnwinnade Di Dwuma: Bere a aniwa ne afuw mu sɔhwɛ ahorow (te sɛ acid a ɛyɛ adwuma) de nsɛnkyerɛnne ma no, sɛ́ wobesi so dua sɛ ɛyɛ galvanized coating a ɛyɛ hyew ankasa no hwehwɛ sɛ wɔsusuw dade a ɛwɔ dade ntam no denam aduruyɛdan mu sɔhwɛ anaa magnetic thickness gauges so.
Fa Data Kyerɛkyerɛ, Ɛnyɛ Aesthetics: Adetɔ a edi mu gyina Mill Test Reports (MTRs) ne ASTM gyinapɛn ahorow a ɛne wo application pɔtee no hyia so, sen sɛ wobɛkyerɛ kɔla a ɛne ne ho hyia pɛpɛɛpɛ.
Aniwa Su: Dwetɛ a Ɛyɛ Hyerɛn, Dull Grey, ne 'Spangle' no.
Nneɛma a wɔayɛ no foforo a wɔde aniwa hu a wɔahyɛ da ayɛ no gu ahorow kɛse. Sɛ worehwehwɛ nneɛma a wɔde akɔma a wɔayɛ no foforo mu a, ebia wubehu nsonsonoe kɛse wɔ afɛfɛde mu. Ɔbarima biako ebia dade a wɔde galvanized ayɛ no bɛda nneɛma a wɔawie a efi dwetɛ a ɛhyerɛn na ɛma hann so kosi fitaa a ɛyɛ tratraa a ɛyɛ kusuu so adi. Saa nsakrae yi taa ba wɔ onwini bere a edi kan no mu bere a dade no afi zinc aguaree no mu akyi.
Sɛ yɛbɛte saa nsonsonoeɛ a ɛwɔ soro yi ase yie a, yɛbɛtumi akyekyɛ mfitiaseɛ awieeɛ no mu ayɛ no afɛfɛdeɛ a wɔakyerɛkyerɛ mu. Nhyehyɛe a ɛwɔ ase ha no bɔ tebea horow a wotumi hu a wobɛtaa ahyia wɔ sotɔɔ no mu no mua.
Aniwa so Finish |
Ade Titiriw a Ɛde Ba |
Nneɛma a Wɔde Yɛ Nneɛma a Ɛwɔ Anim |
Dwetɛ a Ɛhyerɛn / Ɛhyerɛn |
'free zinc' akyi fã a ɛho tew (Eta layer) a ɛwɔ hɔ. |
Ɛyɛ mmerɛw, ɛdannan nneɛma pii. |
Matte / Dull Gray a ɛyɛ fɛ |
Zinc-dade a wɔde afrafra a ɛkɔ akyi bere a ɛyɛ nwini no. |
Ɛyɛ tratraa, ɛyɛ mmerɛw kakra, ɛnyɛ nea ɛdannan. |
Mottled (Afrafra) . |
Onwini a ɛnyɛ pɛpɛɛpɛ wɔ ɔfã kɛse biako afã horow. |
Mmeae a ɛhyerɛn ne nea ɛyɛ kusuu a wɔaka abom a ɛyɛ nketenkete. |
Decoding 'Spangle' Nhwɛsode no
Asɛmfua 'spangle' kyerɛ ahwehwɛ afɛfɛde a wotumi hu wɔ dade no ani. Saa nhyehyɛe yi nam nucleation nhyehyɛe pɔtee bi so na ɛba. Bere a zinc a wɔanwene no dwo wɔ 787°F ase no, zinc atom ahorow no bata aba ahwehwɛ a ɛwɔ dade no ani no ho. Wɔyɛ ahwehwɛ a ɛsono ahinanan bere a ɔhyew no kɔ fam no.
Nnwumayɛbea Nokwasɛm Nhwehwɛmu: Spangle akɛse a wotumi hu kɛse no yɛ ade a atwam kɛse. Wɔde kɔbere a awuduru wom a wɔde ka ho dii dwuma wɔ galvanizing akwan a edi kan no so de tew zinc aguaree no mu nsu a ɛyɛ nwini so, na ɛno na ɛde sukyerɛmma akɛse a ɛyɛ nwonwa yi bae a wɔanhyɛ da. Adetɔfo bɛyɛɛ wɔn su wɔ saa hwɛbea yi ho. Mprempren nnɛyi adwumayɛbea ahorow de nneɛma a atwa yɛn ho ahyia ho ahobammɔ ne adwumayɛfo akwahosan di kan. Wɔde nneɛma a wɔde ka ho a ahobammɔ wom te sɛ antimony di dwuma anaasɛ woyi nneɛma a wɔde ka ho no fi hɔ koraa. Ne saa nti, nnɛyi Galvanized Steel da spangles nketewa koraa anaasɛ nea ɛyɛ mmerɛw koraa adi.
Wim Tebea Nkɔso
Ɛsɛ sɛ wuhu sɛnea dade no hwɛbea no dannan wɔ afuw no mu nso. Nneɛma a wɔde galvanized ayɛ no ntra hɔ nhyerɛn daa. Wɔ asram 6 kosi 8 a edi kan a wɔde wɔn ho hyɛ abɔnten so no, asase ani no kɔ so yɛ nea ɛyɛ abɔde mu de. Dade no yɛ n’ade wɔ nsu ne carbon dioxide a ɛwɔ wim no ho. Mfiase hann no ano brɛ ase, na ɛdan kɔ zinc-patina a ɛyɛ fitaa a ɛyɛ pɛ a ɛyɛ mum. Saa zinc carbonate a ɛwɔ so yi ma akwanside a ɛyɛ den a ɛyɛ nwonwa a ɛwɔ abɔde mu a ɛko tia nneɛma a atwa yɛn ho ahyia no nsɛe.
Nea Enti a Sɛnea Coating Hwɛ no Nkyerɛ sɛnea Ɛko Tia Corrosion
Mpɛn pii no, adetɔfo taa da dadwen kɛse bere a wɔn nsa aka dade a ɛyɛ tuntum anaa nea ɛyɛ matte a wɔaboaboa ano no. Wɔfa no sɛ dull grey finish kyerɛ huammɔdi wɔ galvanizing nhyehyɛe no mu. Saa 'dull gray' su ho adwene a ɛnteɛ yi de nneɛma a ɛho nhia a wɔpow ne adetɔnfo abusuabɔ a ɛyɛ den ba. Nokwarem no, ɛkame ayɛ sɛ afɛfɛde ne sɛnea ade no tumi ko tia nsɛe koraa no nni abusuabɔ biara.
Dwuma a Dade Nnuruyɛ Di
Sɛnea dade a ɛwɔ nnyinaso no yɛ adwuma no na ɛma nea efi aniwa so no ba ankasa. Ne titiriw no, Silicon ne Phosphorus a ɛwɔ dade a wɔannoa no mu no na ɛkyerɛ sɛnea dade no yɛ n’ade denneennen wɔ zinc a wɔabɔ no ho. Dade a ɛyɛ adwuma kɛse twe dade pii kɔ zinc a wɔde kata so no mu bere a ɛreyɛ onwini no. Sɛ dade no hyɛ kuw a ɛyɛ adwuma kɛse mu a, dade a ɛyɛ adwuma no kɔ so bere a dade no afi galvanizing aguaree no mu mpo akyi.
Zinc-Iron Alloy Mfaso a Ɛwɔ So
Awie a ɛyɛ tuntum na ɛyɛ matte kyerɛ sɛ ɛkame ayɛ sɛ nea wɔde kata so no nyinaa yɛ zinc-iron intermetallic layers. Galvanized coatings a wɔtaa de kata so no wɔ zinc a ɛho tew a ɛwɔ akyi, na ɛma ɛyɛ hyerɛnn. Dade a ɛyɛ adwuma no di zinc a ɛho tew yi, na ɛdan no koraa ma ɛbɛyɛ zinc-dade a wɔde afra.
Gyinaesi Nhyehyɛe: Ɛsɛ sɛ wubu saa matte grey finish yi sɛ mfaso mmom sen sɛ ɛbɛyɛ sintɔ. Bere a enni 'free zinc' layer a ɛhyerɛn no, adeyɛ a ɛyɛ ntɛmntɛm no taa de ade a wɔde kata ne nyinaa so a ɛyɛ den koraa ba. Nneɛma a wɔde kata so a ɛyɛ den no kyerɛ ase tẽẽ sɛ ɛtra hɔ kyɛ a ɛyɛ pɛ anaasɛ ɛkorɔn wɔ mmeae a emu yɛ den. Nanso, ɛsɛ sɛ wɔn a wɔhwɛ nneɛma so ne wɔn a wɔyɛ nneɛma no yɛ ahwɛyiye. Zinc-dade a wɔde afrafra a ɛho tew no taa yɛ nea ɛyɛ mmerɛw kakra. Ɛsɛ sɛ wokwati mfiri a ɛbɛbɔ wo kɛse anaasɛ wobɛkotow dodo na amma baabi a ɛbɛpae no ansɛe.
Sɛnea Wobehu Dade a Wɔde Galvanized Ayɛ no Pɛpɛɛpɛ
Sɛ wɔde wɔn ho to afɛfɛde a wɔde aniwa hu nkutoo so a, ɛde asiane ahorow ba. Wohia akwan a wɔfa so de nsɛm a wɔahu de hwɛ sɛ galvanized coating wɔ hɔ na ɛyɛ papa. Saa akwan yi fi adwumayɛbea hacks a ɛnyɛ den so kosi laboratory nhwehwɛmu a emu yɛ den so.
Mfiase Aniwa & Afuw mu Nhwehwɛmu (The 'Adwumayɛbea Hacks') .
Mpɛn pii no, afuw mu adwumayɛfo de nhwehwɛmu a wɔyɛ no ntɛmntɛm di dwuma de hwɛ dade a wonnim. Saa akwan yi nsi sɔhwɛ a wɔyɛ wɔ ɔkwan a ɛfata so ananmu, nanso ɛde nsɛnkyerɛnne a edi kan a ɛyɛ ntɛm ma.
Rust Inspection: Hwehwɛ asinasin no mu sɛ ebia rust kɔkɔɔ a ɛyɛ nnam anaa. Galvanized a wɔde kata so ankasa mma nkannare kɔkɔɔ ntumi nkɔ. Ebia wubehu nkae fitaa a ɛte sɛ powder (nkannare fitaa), nanso dade oxide kɔkɔɔ a enni hɔ no kyerɛ denneennen sɛ zinc a ɛbɔ ho ban.
Vinegar/Acid Sɔhwɛ: Fa acidic solution a ɛnyɛ den te sɛ ofie vinegar anaa hydrochloric acid a wɔayam no kakraa bi gu so. Nnuru a ɛyɛ brɛoo a ɛde bubbling ba no kyerɛ sɛ zinc wɔ hɔ. Ma ɛntra w’adwenem sɛ sɔhwɛ yi kyerɛ sɛ zinc wɔ hɔ nkutoo; entumi nhu ɔkwan pɔtee a wɔfa so de galvanizing di dwuma.
Sɔhwɛ a Ɛnyɛ Ɔsɛe (NDT) ma Sotɔɔ Fam
Sɛnea ɛbɛyɛ na wɔatumi ahwɛ sotɔɔ no mu pɛpɛɛpɛ no, akuw a wɔhwɛ nneɛma a ɛyɛ papa so no de wɔn ho to mfiri a wɔde sɔ nneɛma a ɛnyɛ nea ɛsɛe ade so. Magnetic anaa ɛlɛtrɔnik ade a wɔde susuw nneɛma a wɔde kata so no mu duru ma wonya nsɛm a wotumi de di dwuma ntɛm ara. Saa mfiri a wɔde nsa yɛ yi si so dua sɛ biribi a ɛnyɛ dade a wɔde akata dade a wɔde dade ayɛ so wɔ hɔ.
Ɛdenam mil thickness pɔtee a wobesusuw so no, nhwehwɛmufo betumi ahwɛ sɛ wɔadi mmara so anaa. Ɛsɛ sɛ structure afã horow no taa du ASTM A123 thickness gyinapɛn ahorow ho. Ɛgyina nneɛma no fã ne dade no mu duru so no, mpɛn pii no, mmeae a wogye tom no hwe ase wɔ 1.4 kosi 3.9 mils ntam. Akenkan a ɛwɔ saa kwan yi mu no si ahobammɔ dodow a ɛfata so dua yiye.
Laboratory Verification (Adanse a Etwa To) .
Ɛtɔ mmere bi a ɛsɛ sɛ wokyerɛ nsonsonoe a ɛda nokware hot-dip galvanizing ne paint a zinc pii wom, thermal spraying, anaa mfiri a wɔde kata so no ntam koraa. Saa akwan yi nyinaa de zinc di dwuma, na ɛma nnuru mu sɔhwɛ atitiriw no nyɛ nea wobetumi ayɛ.
Nyansahu mu Adanse: Nokware galvanizing a wɔde ɔhyew gu mu nkutoo gyina hɔ wɔ ne dade nhyehyɛe mu. Ɛno nkutoo ne ɔkwan a wɔfa so de di dwuma a ɛde dade nkitahodi ankasa a ɛda dade ntam ntoatoaso abiɛsa a ɛsono emu biara (Gamma, Delta, ne Zeta) adi. Laboratory mfiridwumayɛfo nam cross-sectional micro-photography so di saa structure signature soronko yi ho adanse. Sɛnea ɛbɛyɛ foforo no, nyansahufo de Electron Paramagnetic Resonance (EPR) di dwuma de hu dade ne zinc a ɛka bom pɔtee a ɛyɛ soronko wɔ ɔhyew a wɔde gu mu no ho.
Galvanized Steel no Su a Wobɛhyia ne Wo Dwumadie
Adetɔ mu nkonimdi hwehwɛ sɛ wode nneɛma a wɔyɛ no ne nneɛma a atwa yɛn ho ahyia a wohwehwɛ no hyia. Ɛnyɛ dade a wɔde zinc akata so nyinaa na ɛyɛ adwuma pɛpɛɛpɛ. Sɛ wɔkyerɛ nneɛma a ɛfata a, ɛmma nneɛma nsɛe ntɛm na ɛma nneɛma a wɔyɛ no yɛ adwuma yiye.
Hot-Dip Galvanized (HDG): Saa kwan yi de dade hyɛ zinc a wɔayam mu tẽẽ. Ɛde ade a ɛyɛ den sen biara a wɔde kata so ma. HDG da so ara yɛ nea eye sen biara koraa a wɔpaw ma abɔnten nkwa tenten a ɛsen biara ne nhyehyɛe mu nokwaredi. Esiane sɛnea dade yɛ adwuma denneennen nti, ne hwɛbea a etwa to no da so ara sesa kɛse.
Electrogalvanized (EG): Wɔn a wɔyɛ no de anyinam ahoɔden a ɛwɔ nnuru a wɔde guare mu na ɛyɛ zinc. Eyi ma ɛyɛ teateaa yiye, ɛyɛ pɛ, na ɛhyerɛn soronko. EG gyina hɔ ma nea eye sen biara a wɔpaw ma dan mu dwumadie anaa nneɛma a ɛhia sɛ wɔde afɛfɛdeɛ a mfomsoɔ biara nni ho ansa na wɔayɛ mfonini. Nanso, ɛmma ahobammɔ a emu yɛ duru a ɛba fam wɔ nsɛe ho wɔ abɔnten mmeae a basabasayɛ wom.
Galvannealed Steel: Eyi de ɔkwan titiriw bi a ɛto so abien di dwuma. Bere a wɔde aduru a edi kan akata so akyi no,... galvanized dade coil no fa ɔhyew-ayɛ ho nhyehyɛe ntɛm ara. Ɔhyew no hyɛ dade a efi dade a ɛwɔ ase no mu ma ɛtrɛw kɔ zinc a ɛwɔ mu no mu koraa. Ɛma matte grey wie a ɛda adi sɛ ɛyɛ porous kakra. Nea efi mu ba no bɛyɛ nea wotumi de weld yɛ kɛse na ɛma paint a ɛbata ho a ɛkorɔn, na ɛma wɔde di dwuma kɛse wɔ kar a wɔyɛ mu.
Selection Matrix Logic: Yɛtu adetɔfo fo sɛ wɔmfa nea wɔabɔ wɔn tirim sɛ ebefi mu aba no nni kan sen raw metallic aesthetics. Fa matrix a ɛwɔ aseɛ ha no kyerɛ wo adetɔ nhyehyɛeɛ kwan.
Botae a Wɔde Di Dwuma |
Ɔkwan a Wɔkamfo Kyerɛ |
Su Titiriw a Ɛwɔ Hɔ |
Raw Outdoor Exposure (sɛ nhwɛso no, Ɔkwan Kɛse so guardrails) . |
Nneɛma a Wɔde Yɛ Ɔhyew a Wɔde Nsu Mu (HDG) . |
Maximum thickness, afɛfɛde a ɛsakrasakra. |
Indoor Appliance Panels (wɔadi kan ayɛ ho adwini) . |
Electrogalvanized (EG) a wɔde anyinam ahoɔden ayɛ . |
Flawless smooth surface, ahobammɔ a ɛyɛ tratraa. |
Kar Nipadua Akwaa (weldable & paintable) . |
Dade a Wɔde Galvannea ayɛ |
Matte alloy soro, paint adhesion a ɛkyɛn so. |
Frɛmfrɛm Kɔkɔɔ a Wɔtɔ: White Rust ne Sourcing Standards
Sɛ nneɛma a wɔde mena no ba a, nhwehwɛmu a wɔde aniwa hu da so ara ho hia na ama wɔahu nsɛm a ɛfa nneɛma a wɔkora so ne sɛnea wodi ho dwuma ho. Ɛsɛ sɛ wuhu nsonsonoe a ɛda cosmetic surface stains ne base metal mmerɛwyɛ ankasa ntam.
'White Rust' (Wet Storage Stain) a wɔkyerɛ .
Ebia ɛtɔ mmere bi a wubehu nkae fitaa bi a ɛte sɛ powder a ɛkata dade a wɔde aba foforo so. Wɔtaa frɛ saa ade yi 'white rust' anaasɛ wet storage stain. Nkannare fitaa yɛ zinc hydroxide. Ɛba ntɛmntɛm bere a nsu kɔda dade a wɔaboaboa ano denneennen ntam a mframa a ɛfata nkɔ mu no.
Saa tebea yi taa ba bere a wɔretu kwan wɔ tarp ase anaasɛ ɛnam adekoradan mu nneɛma a wɔkora so ho nneyɛe a enye so. Ɛte sɛ nea nkannare fitaa yɛ hu, nanso ɛnyɛ nea ɛkyerɛ sɛ ɛyɛ dade a wɔde yɛ adwuma no huammɔdi. Ɛnyɛ den sɛ nkannare fitaa a ɛyɛ hare a ɛte sɛ powder no bɛpopa na ɛntaa nnya sɛnea ɛko tia nsɛe bere tenten no. Nanso, nneɛma a ɛyɛ den, ɛyɛ sum, na ɛyɛ kurukuruwa no hwehwɛ sɛ wɔde mfiri tew ho denneennen na ebetumi akyerɛ sɛ ade a wɔde kata so no nkwa nna asɛe.
Akwanhwɛ a Wobɛhyehyɛ ne Wɔn a Wɔde Nneɛma Ma
Adetɔ a wɔyɛ no ntɛm hwehwɛ nkitahodi a emu da hɔ ne akwanhwɛ a egyina data so. Wubetumi ayi nneɛma a wɔde ma ho ntawntawdi dodow no ara afi hɔ denam nkrataa ho nneyɛe a emu yɛ den a wubegye atom so.
Bisa Mill Test Reports (MTRs): Bere nyinaa bisa wɔn a wɔde nneɛma ma no MTRs ansa na wode adetɔ ho ahyɛde ama. Hwɛ Silicon ne Phosphorus dodow a ɛwɔ mu no mu. Hwɛ a wobɛhwɛ sɛ base steel chemistry no hyɛ parameters a eye mu no boa wo ma wohwɛ nea ebefi mu aba awiei koraa wɔ afɛfɛde mu.
Asiane a Wɔbrɛ ase: Yɛtu fo denneennen sɛ ɛnsɛ sɛ wɔkyerɛ 'kɔla a ɛkɔ so pɛpɛɛpɛ' anaa 'uniform spangle' wɔ apam a ɛfa nneɛma a wɔde di dwuma a ɛyɛ hyew ho a wɔbɛtɔ ho. Dade ho nokwasɛm ahorow ma aniwa a ɛyɛ pɛpɛɛpɛ koraa ntumi nyɛ yiye wɔ akuw ahorow mu.
Kyerɛ Gyinapɛn Ahorow: Sɛ́ anka wode w’adwene besi afɛfɛde so no, kyerɛ sɛnea wobedi nnwuma gyinapɛn ahorow so denneennen. Kyerɛ sɛ wɔdi ASTM A123 a ɛfa adansiɛ mu nneɛma anaa ASTM A653 a ɛfa krataa ne coil nneɛma ho.
Awie
Dade a wɔde galvanized ayɛ no fi dade a wɔde yɛ adwuma, onwini dodow, ne dade a wɔde di dwuma wɔ nnyinaso mu nnuruyɛ mu nkitahodi a ɛyɛ den. Bere a dwetɛ a ɛhyerɛn a wɔde awie no yɛ nea ɛyɛ anigye wɔ adwumayɛbea no fam no, aduru a wɔde afra a ɛyɛ fitaa a ɛyɛ kusuu taa bɔ nneɛma a atwa yɛn ho ahyia ho ban a ɛkorɔn na ɛtra hɔ kyɛ. Sɛ wɔde aniwa nkutoo bu honam fam su ho atɛn a, ɛde pow a ɛho nhia ne nneɛma a wɔsɛe no ba.
Yɛhyɛ wo nkuran sɛ gyina coating thickness, alloy composition, ne ASTM compliance standards a wogye tom so katee nsɔ nneɛma a wɔde mena no hwɛ sen sɛ wobɛhyerɛn wɔ soro. Su ankasa gyina dade a ɛyɛ ketewaa bi so, na ɛnyɛ hann a ɛdannan no.
To nsa frɛ wo adetɔ akuw ne mfiridwumayɛfo ma wɔne nneɛma ho abenfo nsusuw ho ntɛm wɔ nhyehyɛe no fã no mu. Ɛdenam mfiridwuma mu nokwasɛm ahorow yi a wobɛte ase so no, wubetumi de ahotoso apaw dade a wɔde zinc akata so ho nkyerɛkyerɛmu pɔtee a ɛho hia ma wo dwumadibea pɔtee no.
FAQ
Asɛmmisa: So metumi ahu sɛ wɔde magnet a wɔde di dwuma so na ɛma dade yɛ galvanized anaa?
A: Dabi, dade a ɛwɔ ase no yɛ magnetic, nanso zinc layer no nyɛ saa. Magnet bɛbata dade a wɔde galvanized ayɛ ho, nanso eyi kyerɛ sɛ nea wɔde gyina so no yɛ dade nkutoo, na ɛnyɛ sɛnea nea wɔde akata so no te.
Asɛmmisa: Dɛn nti na afã horow bi a wɔde galvanized ayɛ no hwɛ sɛ ɛhyerɛn bere a afoforo a efi kuw koro no ara mu no te sɛ nea ɛyɛ dull?
A: Nsonsonoe a ɛwɔ onwini dodow mu anaa nsakrae nketenkete a ɛba wɔ dade a ɛwɔ mpɔtam hɔ no mu (titiriw silicon ne phosphorus a ɛwɔ mu) no ma dade-zinc aduru a ɛyɛ soronko ba.
Asɛmmisa: So dade a wɔde galvanized ayɛ no mu yɛ duru sen dade a wɔde di dwuma daa?
A: Yiw, nanso ɛyɛ kakraa bi. Zinc a wɔde kata so no de emu duru ketewaa bi ka ho, na ebetumi ayɛ ade a ɛto so abien a ɛkyerɛ bere a wɔde afã abien a ɛyɛ pɛ toto ho no.
Asɛmmisa: So wubetumi ayɛ adwini wɔ dade a wɔde galvanized ayɛ so sɛ w’ani nnye sɛnea ɛte no ho a?
A: Yiw, fa 'duplex system di dwuma.' Nanso, ɛsɛ sɛ wɔyɛ nea ɛwɔ soro no ho mfonini yiye na ɛyɛ wim tebea, anaasɛ ɛsɛ sɛ wɔde primers pɔtee bi di dwuma sɛnea ASTM D6386 gyinapɛn ahorow kyerɛ na wɔasiw peeling ano.
