Galvanized dade coil gyina hɔ sɛ wiase nyinaa gyinapɛn a ɛho ka sua a ɛko tia nsɛe wɔ nneɛma a wɔyɛ ne adansi mu. Ɛdenam zinc a ɛbɔ ho ban a wɔde kyekyere dade a ɛwɔ ase ho so no, saa ade yi ma ahobammɔ a ɛho hia fi nneɛma a ɛwɔ hɔ no ho, na ɛma wohu sɛ ɔdan no yɛ pɛpɛɛpɛ wɔ baabi a dade a wɔansiesie no bedi huammɔ. Nanso, 'galvanized steel' a wobɛpaw ara kwa no ntaa nnɔɔso sɛ ɛbɛma woanya adwumayɛ ho bɔhyɛ. Asɛnnennen ankasa no wɔ nsonsonoe a ɛda mfaso a ɛwɔ mu no mu a wɔbɛfa so: bere a adetɔfo dodow no ara te ase sɛ zinc ko tia nkannare no, nnipa kakraa bi na wɔte nea nneɛma a wɔde kata so mu duru pɔtee bi (te sɛ G60 ne G90) anaasɛ nsakrae soronko a ɛda akwan horow a wɔfa so de nneɛma a ɛyɛ hyew ne electro-galvanizing ntam no kyerɛ yiye.
Sɛ wɔantumi amfa mfiridwuma mu nsɛm a wɔakyerɛkyerɛ mu nhyia wɔ tebea a wɔahyɛ da ayɛ ho a, ɛtaa de adwuma no mu nsunsuanso a ɛyɛ hu ba, a nea ɛka ho ne nsɛe a ɛba ntɛm ne ɔdan no mu mmerɛwyɛ. Saa akwankyerɛ yi botaeɛ ne sɛ ɛbɛsi saa nsonsonoeɛ no ano denam mfiridwuma mu dwumadie ho nsɛm pɔtee a wɔde bɛka mfiridwuma ho nkyerɛkyerɛmu a ɛhia na ama asi no ho tẽẽ no so. Ɛdenam nneɛma nketenkete a ɛwɔ coating thickness, formability gyinapɛn, ne nneɛma a atwa yɛn ho ahyia anohyeto ahorow a wobɛte ase so no, wubetumi ahwɛ ahu sɛ nneɛma no bɛtra hɔ akyɛ na woanya mfaso kɛse afi sika a wode asie no mu ama wo manufacturing line anaa adansi adwuma no.
Nneɛma Titiriw a Wɔde Fa Kɔ
Botae Titiriw: Dade a wɔde galvanized ayɛ no kari pɛ wɔ ɛka a wɔbɔ ansa na wɔayɛ ne bere tenten a ɛtra hɔ kyɛ denam afɔrebɔ ahobammɔ so (zinc a ɛde ne ho bɔ afɔre ma dade no).
Sector Dominance: Ɛho hia kɛse wɔ adansi (framing/roofing), kar (panels), ne kuayɛ mu esiane nneɛma a atwa yɛn ho ahyia pɔtee a wɔma ho kwan nti.
Asiane a Ɛwɔ Paw mu: Sɛ wɔde ade a wɔde kata so no mu duru a ɛnteɛ di dwuma (sɛ nhwɛso no, G60 wɔ beae a nsɛe kɛse) a, ɛde huammɔdi ba ntɛm; mpoano nneɛma a atwa yɛn ho ahyia taa hwehwɛ sɛ wɔde nneɛma foforo te sɛ Galvalume anaa Aluminium.
Adetɔ ho Afotuo: Ɛsɛ sɛ wɔde ASTM A653 gyinapɛn ne ahwehwɛdeɛ pɔtee a ɛfa nwene ho (lock-forming vs. deep drawing) na ɛkyerɛ nneɛma a wɔpaw.
Core Industrial Applications ne Adwumayɛ ho Ahwehwɛde
Sɛnea Galvanized Steel Coil tumi yɛ nneɛma pii no ma ɛyɛ adwuma sɛ akyi dompe ma nnwuma ahorow. Nanso, ɔfa biara hwehwɛ mfiridwuma mu nneɛma soronko ne nneɛma a wɔde kata so ho nkyerɛkyerɛmu a ɛbɛma wɔatumi agyina ne dwumadibea pɔtee no ano.
Adansi & Nneɛma a Wɔde Yɛ Adwuma (The Volume Driver) .
Adansi na ɛma wɔde dade a wɔde galvanized di dwuma kɛse sen biara wɔ wiase nyinaa. Wɔ saa ɔfa yi mu no, nneɛma no di dwuma soronko abien: nhyehyɛe mmoa ne nneɛma a atwa yɛn ho ahyia ho banbɔ.
Nneɛma a Wɔde Yɛ Nneɛma: Wɔ Light Gauge Steel Framing (LGS), purlins, ne girts ho no, nea wɔhwehwɛ titiriw ne ahoɔden a ɛma wonya aba. Mpɛn pii no, wɔn a wɔyɛ nneɛma no de wɔn ho to dade a ɛyɛ Grade 33, 50, anaa 80 so de hwɛ hu sɛ ɔdan no nnompe betumi agyina nnesoa a ɛho hia so. Nea ɛho hia titiriw no, saa nneɛma yi de G60 kosi G90 a wɔde kata so mu duru di dwuma. Esiane sɛ wɔtaa de saa afã horow yi to afasu anaa ɔdan atifi nhyehyɛe mu nti, wɔbɔ ho ban fi osu a ɛtɔ tẽẽ ho nanso ɛsɛ sɛ ɛda so ara gyina nsu a atwa yɛn ho ahyia ne nsu a ɛyɛ nwini a ɛbɛsɛe adan no mudi mu kura bere a bere kɔ so no ano.
Ɔdan Envelope: Ɔdan atifi ne siding panels hyia UV mframa, osu, ne sukyerɛmma tẽẽ. Bere a wɔtaa de di dwuma sɛ ade a wɔde yɛ Pre-Painted Galvanized Iron (PPGI) no, zinc a ɛwɔ ase no da so ara ho hia. Sɛ wɔtwetwe paint no a, zinc no ma wonya ahobammɔ a ɛto so abien. Substrate surface a ɛfata a wɔbɛpaw no ho hia kɛse wɔ ha; a ɛyɛ mmerɛw a wɔde wie no hwɛ hu sɛ paint no bɛbata ho yiye, na ɛmma ɛnyɛ peeling anaasɛ blistering mfe pii wɔ line no ase.
Nneɛma a Wɔde Yɛ Adwuma: Ɔkwan akɛse so awɛmfo, nsu a wɔde fa nsu mu, ne abɔnten so akwan no afã horow yɛ adwuma wɔ tebea horow a emu yɛ den sen biara a wobetumi asusuw ho no bi mu, na ɛhyia akwan so nkyene, nneɛma a asɛe, ne nsu a ɛtɔ bere nyinaa. Saa nneɛma yi hwehwɛ sɛ wɔde zinc a wɔde kata so a emu yɛ duru, a mpɛn pii no ɛboro aguadi mu nneɛma a wɔtaa de di dwuma so, na ama wɔde mfe du du pii ayɛ adwuma a wonsiesie. Mfiridwumayɛfo de saa nneɛma yi di kan efisɛ nneɛma a wɔde yɛ adwuma a wɔbɛsesa no yɛ den wɔ nhyehyɛe mu na ne bo yɛ den.
Kar a Wɔyɛ (The Precision Driver) .
Kar adwuma no ma wɔyɛ nneɛma foforo wɔ mfiridwuma a ɛma ahoɔden mu, na wɔpia nneɛma a ɛma ahoɔden ne emu duru yɛ pɛ a ɛkorɔn a wɔmfa ahoɔden a ɛko tia nsɛe mmɔ afɔre.
Nneɛma a Ɛda Adi: Abɔnten afã horow te sɛ fenders, hoods, ne apon panels hwehwɛ sɛ wɔde nneɛma a ɛho tew wie na wɔde ayɛ mfonini. Ɛha yi, wɔn a wɔyɛ no taa de 'Galvannealed' dade di dwuma. Saa nsakrae yi fa ɔhyew a wɔde yɛ ade a wɔde kata so akyi a ɛdannan zinc a wɔde kata so no ma ɛbɛyɛ zinc-dade a wɔde afrafra ho. Nea afi mu aba ne matte a egye paint ntɛm na ɛma weldability a ɛkyɛn so, a ɛho hia ma automated assembly lines.
Afã horow a Ɛnda adi: Nneɛma a ɛwɔ mu te sɛ chassis, nneɛma a wɔde hyɛ mu den, ne nkongua no nhwehwɛ sɛ wɔyɛ afɛfɛde a ɛyɛ pɛ na mmom ɛhwehwɛ sɛ wɔbɔ wɔn ho ban kɛse wɔ akwanside ho. Dade a wɔde galvanized ayɛ a ɛho tew a wɔde ɔhyew ahyɛ mu ne ade a wɔpaw wɔ ha. Ɛma wɔn a wɔyɛ kar no tumi de dade a ano yɛ den kɛse a wɔde susuw kar no mu a ɛyɛ tratraa na emu yɛ hare di dwuma de tew kar no mu duru nyinaa so—ɛma pɛtro a wɔde di dwuma yiye no tu mpɔn—bere a wɔhwɛ hu sɛ kar no ho rensɛe esiane sɛ wɔde petepete ɔkwan so anaasɛ nkyene a ɛboaboa ano nti.
Kuadwuma & Mmoa a Wɔde Wɔn To Wɔn Mu (The Chemical Resistor) .
Kuadwuma de nnuru ho asɛnnennen soronko bi ba a nneɛma a wɔyɛ a wɔahyɛ da ayɛ no nyɛ: ammonia a ɛwɔ hɔ. Nsu ne mmoa nwura da aburow akorae, adidibea, ne mmoa dan mu bere nyinaa.
Bere a Galvalume (aluminum-zinc a wɔde afra) korɔn wɔ wim tebea horow pii mu no, ɛnyɛ adwuma yiye wɔ mmeae a wɔde mmoa gu mu. Ammonia a wohu wɔ urea ne nwura mu no ne aluminium yɛ adwuma denneennen, na ɛma nea wɔde kata so no sɛe ntɛmntɛm. Galvanized Steel Coil di nkonim wɔ tebea pɔtee yi mu efisɛ ne zinc a ɛho tew a wɔde kata so no ma ɛko tia alkaline nnuru a ɛkorɔn. Wɔ akuafo ne kuayɛ adansifo fam no, dade a wɔde galvanized ayɛ a wɔpaw sen nea wɔde aluminium ayɛ no taa yɛ nsonsonoe a ɛda silo a ɛtra hɔ mfe 10 ne mfe 30 ntam.
HVAC & Electrical Enclosures a Wɔde Yɛ Adwuma
Wɔ mfiridwuma ne anyinam ahoɔden mu no, formability ne electromagnetic su di kan ka corrosion resistance ho.
Ductwork: HVAC ducting hwehwɛ sɛ wɔyɛ nneɛma a ɛyɛ den, a nea ɛka ho ne hems a ɛyɛ den ne crimps. Saa dwumadie yi hwehwɛ 'Lock-Forming Quality' (LFQ) dadeɛ. Wɔyɛ LFQ nneɛma ho adwuma de hwɛ hu sɛ zinc a wɔde kata so no bata dade a ɛwɔ ase no ho denneennen bere mpo a wɔabɔ no digrii 180 no. Sɛ wɔankyerɛkyerɛ saa nkyerɛkyerɛmu yi a, anka zinc no bɛpaapae anaasɛ ɛbɛpetepete wɔ mmeae a wɔabɔ no, na ama dade no akɔ so ayɛ nsu a ɛyɛ nwini ne nkannare wɔ mframa a wɔde fa mu no mu.
Electrical Enclosures: Cable trays, conduit pipes, ne server cabinets de dade di dwuma ma ne electromagnetic interference (EMI) shielding tumi. Zinc a ɛwɔ so no bɔ nhyehyɛe ahorow a ɛho hia yi ho ban fi nneɛma a atwa yɛn ho ahyia a ɛbɛsɛe ho a ɛnhaw dade no magnetic su, na ɛhwɛ hu sɛ ɛlɛtrɔnik mfiri a ɛyɛ mmerɛw no kɔ so yɛ nea wɔabɔ ho ban na ɛyɛ nwunu.
Mfiridwuma a Wɔde Kata Nneɛma So a Wɔde Di Dwuma Awiei
Ɛnyɛ zinc a wɔde kata so nyinaa na wɔbɔɔ no pɛpɛɛpɛ. Sɛnea wɔyɛ nneɛma ne nea efi mu ba no ntease ho hia na ama nneɛma no ne ne nkwa nna ne nneɛma a atwa ho ahyia a wɔahyɛ da ayɛ no ahyia.
Hot-Dip Galvanized (HDG) ne anyinam ahoɔden a wɔde hyɛ mu (EG) .
Ɔkwan a wɔfa so de di dwuma no sesa ade a etwa to no su titiriw. Nea ɛka Hot-Dip Galvanized (HDG) ho ne sɛ wɔde dade a wɔabɔ no akuturuku no fa zinc a wɔayam no aguaree mu tẽẽ. Eyi ma dade nkitahodi ba zinc ne dade no ntam, na ɛma wɔde kata so a ɛyɛ den na ɛyɛ den. HDG ne deɛ wɔpɛ sɛ wɔpaw ma abɔnten, adwuma a emu yɛ duru, ne adansiɛ dwumadie te sɛ owia racking ne adansiɛ framing a akwansideɛ ahobanbɔ a ɛkyɛn so no yɛ nea wontumi nsusuw ho.
Nea ɛne eyi bɔ abira no, wɔde anyinam ahoɔden a wɔde hyɛ zinc so wɔ dade no ani so na ɛyɛ Electrogalvanized (EG) dade. Saa adeyɛ yi ma wonya nea ɛyɛ tratraa kɛse, ɛyɛ pɛ kɛse, na ɛyɛ matte. Bere a ɛmma ahobammɔ a ɛmma nsɛe pii nsen HDG no, ɛma wonya ɔfasu a ɛkorɔn a wɔde yɛ mfonini. EG yɛ nea eye ma dan mu nneɛma, te sɛ ofie mfiri, kɔmputa so ntama, ne dan mu adansi nneɛma a pɛpɛɛpɛyɛ ne afɛfɛde boro wim tebea a ɛko tia so kɛse so.
Nneɛma a Wɔde Kata Nneɛma So (G-Scale) .
Wɔ ASTM A653 gyinapɛn mu no, wɔde 'G' na ɛkyerɛ nneɛma a wɔde kata so mu duru a wɔde nɔma a egyina hɔ ma zinc mu duru nyinaa a ɛwɔ krataa no afã abien no nyinaa (wɔ ɔuns nkyem ɔha mu nkyem ɔha mu wɔ anammɔn ahinanan biara mu) di akyi. Saa nsenia yi ntease ho hia ma adetɔ.
| Designation |
Zinc Thickness |
Mfitiaseɛ Dwumadie |
Typical Atwa Yɛn Ho Ahyia |
| G30 / G40 na ɛwɔ hɔ |
Kanea |
Mfiri a wɔde yɛ adwuma, ɔfese nneɛma, studs |
Mmeae a wim tebea yɛ yiye na ɛhɔ yɛ kusuu wɔ dan mu. |
| G60 |
Medium (Gyinapɛn) . |
Aguadi HVAC, dan mu framing, kar dan apon |
Nsu a ɛtɔ bere ne bere mu, abɔnten mmeae a wɔabɔ ho ban. |
| G90 + na ɛwɔ hɔ |
Mu duro |
Ɔdan atifi, kuayɛ silo, abɔnten so nneɛma |
Osu, sukyerɛmma, ne efĩ a wɔde wɔn ho bɛhyɛ mu tẽẽ. |
'G' nɔma a ɛkorɔn no ne zinc a ɛyɛ den no wɔ abusuabɔ tẽẽ. Esiane sɛ zinc porɔw wɔ ɔkwan a wotumi hyɛ ho nkɔm so nti, wɔ nsusuwii mu no, G90 a wɔde kata so no bɛtra hɔ akyɛ 50% asen G60 a wɔde kata so wɔ tebea koro no ara mu ansa na nkannare kɔkɔɔ apue wɔ dade a wɔde gyina so no so.
Spangle Nsonsonoe (Afɛfɛde ne Dwumadi) .
'spangle' kyerɛ sukyerɛmma a ɛte sɛ ahwehwɛ a wotumi hu wɔ dade a wɔde galvanized ayɛ a ɛyɛ hyew a wɔde ahyɛ mu no ani. Abakɔsɛm mu no, na wobu spangle kɛse a akokoduru wom sɛ ɛyɛ su pa ho sɛnkyerɛnne. Ɛnnɛ, wɔhwɛ spangle kɛse so ma dwumadi mu ahiade pɔtee bi.
Regular Spangle: Ɛda atetesɛm, ahwehwɛ a wotumi hu no adi. Ɛfata koraa ma adansi a ɛwɔ hɔ nyinaa, afã horow a wɔanhu, ne abɔnten so nneɛma a wɔde di dwuma wɔ baabi a afɛfɛde yɛ nea ɛto so abien wɔ dwumadi mu.
Zero anaa Minimized Spangle: Wɔnam ahwehwɛ nyin a wosiw ano bere a wɔreyɛ onwini no so na ɛba. Saa nneɛma a wɔde wie yi ho hia ma kar afã horow anaa mfiri a wɔde yɛ nneɛma a wɔde paint bɛhyɛ mu. Zero-spangle surface hwɛ hu sɛ crystalline texture no mfa telegraph mfa paint no mu, na ɛma ɛyɛ mmerɛw na ɛhyerɛn kɛse.
Nhwehwɛmu a Ɛho Hia: Baabi a Ɛnsɛ sɛ Wɔde Dade a Wɔde Galvanized Di Dwuma
Nneɛma mu nhwehwɛmu a wofi nokwaredi mu hwehwɛ sɛ wogye anohyeto ahorow tom. Bere a Galvanized Steel Coil yɛ nea wotumi de yɛ nneɛma pii no, ɛnyɛ amansan nyinaa aduru a wɔde sa ne nyinaa. Nneɛma bi a atwa yɛn ho ahyia bɛsɛe zinc ntɛmntɛm, na ɛde huammɔdi a ne bo yɛ den aba.
Mpoano Anohyeto a Ɛwɔ Hɔ
Nkyene nsu yɛ kryptonite a wɔde dade a wɔde galvanized ayɛ. Wɔ mmeae a nkyene pii wɔ—a wɔtaa kyerɛkyerɛ mu sɛ ɛwɔ mpoano akwansin 1 kosi 3—no, nkyene a wɔde petepete so no ma zinc no sɛe ntɛmntɛm kɛse. Chlorides a ɛwɔ po mu aduru a wɔde petepete so mu no bubu patina a ɛbɔ ho ban a ɛtaa ba zinc so no. Wɔ nnwuma a ɛwɔ saa mmeae yi fam no, dade a wɔde galvanized ayɛ a wɔbɛkyerɛ no taa yɛ mfomso. Mmom no, ɛsɛ sɛ akuw a wɔtɔ nneɛma kamfo Aluminium anaa Stainless Steel a ɛma ɛpo mu nsɛe a ɛkorɔn koraa no kyerɛ.
Galvanized ne Galvalume (Al-Zn) a wɔde di dwuma wɔ ɔkwan a ɛyɛ nwonwa so.
Adetɔfo taa de Galvanized dade ne Galvalume frafra, nanso wɔwɔ adwumayɛ ho nsɛm a ɛda nsow. Galvalume de aluminium, zinc, ne silicon bom. Wɔ wim tebea horow mu no, Galvalume betumi de dade a wɔde galvanized ayɛ no nkwa nna mmɔho 2 kosi 4 ama esiane akwanside ahobammɔ a ɛwɔ aluminium mu nti.
Nanso, Galvanized dadeɛ kura mfasoɔ a ɛho hia wɔ 'edge creep.' Sɛ wɔtwa krataa bi a, dadeɛ a wɔannoa no ano no da adi. Zinc yɛ adwuma kɛse na ɛbɛtu akɔtena baabi foforo de abɔ saa nea wɔatwa yi ho ban (nea ɛsa ne ho yare). Aluminium yɛ passive kɛse na ɛmma ahobammɔ kakraa bi wɔ anoano a wɔatwa no. Enti, fa Galvanized dade di dwuma ma nneɛma a ɛfa sɛnea wɔyɛ no kɛse, wɔbɔ, anaasɛ wɔtwitwa, ne mmoa a wɔde wɔn gu afiase. Paw Galvalume ma standard industrial roofing a ntokuru kakraa bi na ɛwɔ mu.
Asiane a Ɛwɔ Nneɛma a Wɔkora So (White Rust) .
Di huammɔ a ɛtaa ba ansa na wɔde afiri no ahyɛ mu mpo. Sɛ wɔde galvanized coils sie adekoradan ahorow a ɛyɛ nwini a mframa ntumi nkɔ mu mu a, nsu no kɔda dade a wɔde ayɛ no ntam. Eyi ma zinc no nnya carbon dioxide a ehia na ama ayɛ ne carbonate a ɛbɔ ho ban a ɛyɛ den no. Mmom no, ɛyɛ zinc hydroxide —ade fitaa a ɛyɛ powder a wonim no sɛ 'White Rust.' Saa ɔsɛe yi betumi ayɛ nea ɛtra hɔ daa. Sɛnea ɛbɛyɛ a eyi bɛbrɛ ase no, hwehwɛ sɛ wɔyɛ pasivation treatments (chromating anaa oiling) bere a wɔretɔ nneɛma no na hwɛ hu sɛ wɔde adekoradan a wɔhwɛ wim tebea so.
Aguadi Ho Nsusuwii a Ɛfa Adetɔ Ho
Sourcing steel coil yɛ den sen sɛ wobenya base bo a ɛba fam sen biara wɔ ton biara mu. Aguadi mu nneɛma pii nya Total Cost of Ownership (TCO) ne fabrication nkonimdi so nkɛntɛnso.
Ɛka Drivers a Ɛboro Base Price so
Zinc a wɔbɔ ka ho no nya sika a etwa to a wɔbɔ wɔ galvanized coil ho no so nkɛntɛnso kɛse. Esiane sɛ wɔtɔn zinc wɔ wiase nyinaa wɔ LME (London Metal Exchange) so nti, ne bo sakra a ɛnyɛ dade. Nneɛma a wɔde kata so a ɛyɛ den (G90 vs G60) ma wonya zinc ho ka kɛse. Bio nso, ahoɔden a ɛkorɔn low-alloy grades (HSLA) ahyɛde ma ahoɔden premiums. Ɛsɛ sɛ adetɔfo nso susuw ɛka a wɔbɔ wɔ aduru a wɔde sa nneɛma a ɛwɔ soro te sɛ nea wɔde kata nsateaa so anaasɛ ngo a emu yɛ duru a wɔde bɔ nneɛma no ho ban bere a wɔde rekɔ nanso ɛde ka nea ɛwɔ ase no ho no ho.
Formability & Nneɛma a Wɔyɛ no Metrics
Sɛ wopaw dade a ɛnteɛ a, ebetumi ama adwuma bi agyae. Wɔ HVAC adwumayɛfoɔ fam no, **Lock-forming Quality (LFQ)** ho hia; ɛhwɛ hu sɛ ade a wɔde kata so no renpaapae bere a wɔrebɔ no denneennen no. Nea ɛne no bɔ abira no, kar ne mfiri stampers hia **Drawing Quality (DQ)** anaa **Deep Drawing Quality (DDQ)** dade. Saa grade ahorow yi wɔ microstructure pɔtee bi a ɛma dade a ɛwɔ ase no trɛw kɔ nsusuwii ahorow a ɛyɛ den mu (te sɛ sink basin anaa kar fender) a ɛnpaapae. Sɛ wobu ani gu saa metrics yi so a, ɛde scrap rates a ɛkɔ soro ne nneɛma a wɔsɛe no ba.
Nneɛma a ɛkɔ so daa & TCO
Ɛmfa ho sɛ ɛka a wɔbɔ ansa na wɔayɛ no kɛse sɛ wɔde toto 'black' dade a wɔahyɛ da ayɛ ho a, dade a wɔde galvanized ayɛ no de Lifecycle Cost Analysis a ɛyɛ den ma. Ɛdenam hia a ɛho nhia sɛ wɔsan yɛ mfonini anaasɛ wosiesie no mfe 20 kosi 50 a woyi fi hɔ so no, nneɛma no tua ne ho ka. Bio nso, zinc-steel composite no yɛ nea wotumi de di dwuma bio 100%. Sɛ ɔdan bi nkwa nna awiei a, wobetumi asan agye dade no na wɔabɔ mu ma ayɛ nneɛma foforo a wɔrenhwere agyapade, na ɛne nnɛyi botae ahorow a ɛfa sɛnea ɛbɛkɔ so atra hɔ daa no hyia.
Awie
Dade a wɔde galvanized ayɛ no nyɛ ade biako pɛ a wɔde yɛ ade biako; ɛyɛ nsɛm pɔtee a ɛtrɛw a wɔayɛ no sɛnea ɛbɛyɛ a ɛne nneɛma pɔtee bi a atwa yɛn ho ahyia di nkitaho. Efi nneɛma a ɛyɛ tratraa a wotumi de paint gu afiri a wɔde horo nneɛma so so kosi G90 ahobammɔ a emu yɛ duru a ɛwɔ ɔkwan kɛse so awɛmfo so no so no, nkonimdi gyina pɛpɛɛpɛyɛ so. Nsonsonoe a ɛda adwuma bi a ɛkɔ so mfe du du pii ne nea edi nkogu wɔ mfe kakraa bi mu ntam no taa ba fam wɔ nsonsonoe a ɛda ɔhyew a wɔde gu nsu mu ne electro-galvanizing ntam a wɔbɛte ase, anaasɛ bere a ɛsɛ sɛ wɔdan kɔ aluminium so wɔ mpoano mmeae a wobehu so.
Wɔde di dwuma yiye fi ase denam nneɛma a atwa yɛn ho ahyia a wɔbɛkyerɛkyerɛ mu so. So ammonia wɔ hɔ? So ade no behyia nsu anaa UV mframa a ɛkɔ so daa? Sɛ wɔyɛ saa nneɛma a ɛsakra yi ho mfonini wie a, sɛ wɔbɛpaw ade a wɔde kata so no mu duru ne dade a ɛfata a, ɛbɛyɛ gyinaesi a egyina data so sen sɛ ɛbɛyɛ nsusuwii hunu. Yɛhyɛ wo nkuran sɛ bisa nneɛma ho animdefo anaasɛ nhwɛsode kit pɔtee bi de hwɛ sɛ coating adherence ne surface finish wɔ w’ankasa manufacturing line ansa na woahyɛ bɔ sɛ wobɛkra a edi mũ.
FAQ
Asɛmmisa: Nsonsonoe bɛn na ɛda G60 ne G90 galvanized dade ntam?
A: Nsonsonoe no gyina sɛnea zinc a wɔde akata so no mu duru so. G60 wɔ ade a wɔde kata so nyinaa mu duru yɛ 0.60 oz/sq ft, bere a G90 wɔ 0.90 oz/sq ft. G90 ma akwanside a ɛyɛ den, na ɛma bɛyɛ 50% nkwa nna tenten wɔ abɔnten ansa na zinc no asa na nkannare kɔkɔɔ ayɛ. Wɔtaa de G60 di dwuma ma dan mu anaasɛ aguadi mu nneɛma a ɛnyɛ den, bere a G90 ne gyinapɛn a wɔde yɛ abɔnten dan atifi ne mmeae a emu yɛ den.
Asɛmmisa: So wobetumi ayɛ dade a wɔde galvanized ayɛ no ho adwini?
A: Yiw, nanso egye ahosiesie a ɛfata. Mpɛn pii no, nneɛma a wɔde galvanized ayɛ foforo no yɛ torotoro dodo anaasɛ nnuru yɛ adwuma ma paint a wɔtaa de di dwuma no sɛ ɛbɛbata ho. Ɛsɛ sɛ wode primer anaa pre-treatment pɔtee bi di dwuma de etch surface no. Sɛnea ɛbɛyɛ foforo no, wubetumi atɔ 'Galvannealed' dade anaa 'Bonderized' dade, a wɔde nnuru ayɛ anaasɛ wɔde ɔhyew ayɛ ho adwuma wɔ owiyammo no mu pɔtee sɛnea ɛbɛyɛ a ɛbɛma woanya soro ntɛm ara, a ɛyɛ krado sɛ wɔde paint ayɛ a enni prep adwuma foforo.
Asɛmmisa: So dade a wɔde galvanized ayɛ no yɛ nkannare?
A: Awiei koraa no, yiw. Dade a wɔde galvanized ayɛ no gyina nkannare ano denam 'afɔrebɔ' kwan so a zinc no sɛe mmom sen dade no. Mfe pii mu no, zinc a ɛwɔ mu no bɛsa nkakrankakra. Sɛ wɔnom zinc no wie a, dadeɛ a ɛwɔ aseɛ no da adi, na 'Red Rust' (iron oxide) bɛba. 'White Rust' yɛ asɛm soronko—adekorabea nkekae a ɛba bere a wɔde zinc to nsuo mu a mframa nkɔ mu.
Asɛmmisa: So dade a wɔde galvanized ayɛ no fata ma po mu nneɛma a atwa yɛn ho ahyia?
A: Mpɛn pii no, dabi. Wɔ mmeae a nkyene nsu ntam kwan yɛ akwansin 1-3 no, chloride a ɛdɔɔso a ɛwɔ mframa mu no ma zinc a ɛyɛ mmerɛw no yɛ ntɛmntɛm, na ɛma ade a ɛbɔ ho ban no fi hɔ ntɛmntɛm. Sɛ wopɛ sɛ wode wo ho hyɛ po mu tẽẽ a, dade a ɛnyɛ den anaa aluminium yɛ nea eye koraa a wubetumi apaw. Sɛ ɛsɛ sɛ wɔde dade a wɔde galvanized ayɛ di dwuma a, ɛhwehwɛ sɛ wɔde ade a emu duru yɛ duru paa (G210 anaa nea ɛboro saa) anaasɛ paint nhyehyɛe foforo a ɛbɔ ho ban (duplex coating).
Asɛmmisa: Dɛn ne galvanized dade coil nkwa nna?
A: Nkwa nna no gu ahorow kɛse a egyina efĩ ne nsu a ɛwɔ mu so. Wɔ nkuraase tebea a ɛyɛ kusuu mu no, G90 a wɔde kata so a wɔahyɛ da ayɛ no betumi atra hɔ bɛboro mfe 50. Wɔ mfiridwuma anaa nkurow akɛse mu tebea a emu yɛ duru a efĩ pii wom mu no, saa ade koro no ara a wɔde kata so no betumi atra hɔ mfe 20 kosi 25. Dodow a zinc a wɔde kata so no yɛ den no, dodow no ara na ɛtra hɔ kyɛ.
