Sɛnea wɔte ase Galvanized Steel a wɔyɛ no ho hia kɛse ma mfiridwumayɛfo, adetɔ akuw, ne adwuma no so ahwɛfo. Ɛsɛ sɛ wohwehwɛ nneɛma nkwa nna, nhyehyɛe mu nokwaredi, ne adetɔnfo tumi mu na ama woasi gyinae a ɛfata.
Ɛnyɛ galvanizing akwan nyinaa na ɛma wonya nea ɛyɛ pɛ. Ɔkwan pɔtee a wɔfa so yɛ nneɛma no kyerɛ sɛnea wɔde kata so no mu duru, sɛnea ɛbɛyɛ yiye, ne sɛnea adwuma no betumi ayɛ adwuma bere tenten. Sɛ wɔde wɔn ho to ɔkwan a ɛnteɛ so a, ebetumi ama nneɛma asɛe ntɛm anaasɛ adan no asɛe kɛse.
Saa akwankyerɛ yi bubu nnuru ne mfiridwuma mu akwan pɔtee a ɛwɔ galvanizing akyi no mu. Yɛyɛ akwan horow a wɔfa so yɛ nneɛma ho mfonini tẽẽ kɔ wɔn mfiridwuma mu dwumadie a ɛyɛ papa so. Wobɛsan nso anya nhyehyɛe a egyina adanse so a wode bɛsɔ wɔn a wɔde dade ma no ahwɛ. Edu asɛm yi awiei no, wobɛte sɛnea wobɛpaw nsɛm a ɛfata ama wo adwuma kɛse a edi hɔ no ase pɛpɛɛpɛ.
Nneɛma Titiriw a Wɔde Fa Kɔ
**Cathodic Protection:** Zinc yɛ adwuma sɛ afɔrebɔ anode (standard electrode potential of -980 mV vs. steel's -400 mV), bɔ base metal no ho ban sɛ mpo wɔabɔ coating no wɔ 5mm radius mu a.
**Akwan a wɔfa so yɛ no Standardization:** Standard hot-dip process no hwehwɛ sɛ wɔhwɛ ɔhyew so denneennen, titiriw no, 450°C (842°F) a wɔde zinc a wɔabɔ no asuguare.
**Volume Production:** Aguadi **galvanized dade coil** ne **galvanized dade krataa** de wɔn ho to galvanizing nhama a ɛkɔ so denam akwan a ɛkɔ akyiri te sɛ Sendzimir kwan ne mframa nnade ma pɛpɛɛpɛ coating control.
**Application Specificity:** Ɛsɛ sɛ paw no ne ɔkwan (Hot-Dipped, Electro-galvanized, Galvanealed) ne nea ebefi mu aba no hyia (sɛ nhwɛso no, maximum corrosion resistance vs. paintability).
**Anohyeto a wonim:** Galvanized dade hwehwɛ sɛ wɔkora so pɔtee na ama 'white rust' asiw ano na ɛmfata mma mmeae a acid pii wɔ anaasɛ ɛne dade a ɛnsɛ te sɛ kɔbere di nkitaho tẽẽ.
Nyansahu Titiriw: Sɛnea Zinc Bɔ Dade Ho Ban
Sɛ yɛbɛte ɔkwan a wɔfa so yɛ nneɛma no ase yiye a, ɛsɛ sɛ yedi kan te akwan a wɔfa so bɔ nneɛma ho ban a ɛwɔ agoru no ase no ase. Zinc nkata dade so kɛkɛ. Ɛde nnuru bata dade a ɛwɔ ase no ho, na ɛma wonya ahobammɔ nhyehyɛe a ɛwɔ afã abien.
Honam fam Akwanside no
Zinc ma dade a ɛyɛ den kɛse ba substrate no so. Saa kyɛm a ɛyɛ den yi kata nsu, oxygen, ne chloride a ɛsɛe ade no ano koraa. Nea ɛnte sɛ paint a wɔtaa de di dwuma no, zinc a wɔde afrafra no nyin wɔ ɔkwan a ɛyɛ ɔkra so fi dade no ankasa mu. Saa nkitahodi a emu yɛ den yi siw akisikuru ne akisikuru ano. Zinc a ɛho tew na ɛwɔ akyi fã no, bere a emu nsɛm no yɛ zinc-dade a ɛyɛ den na ɛyɛ den yiye. Saa nneɛma a ɛwɔ mu yi taa ko tia akisikuru yiye sen dade a ɛwɔ ase no.
Electrochemical Micro-Battery (Afɔrebɔ Anode) .
Adeyɛ no mu nyansa ankasa gyina cathodic ahobammɔ so. Zinc yɛ electronegative kɛse sen dade. Wɔ galvanic nsenia so no, zinc kura electrode tumi a wɔahyɛ da ayɛ a ɛyɛ -980 mV, bere a dade te bɛyɛ -400 mV.
Esiane sɛ zinc yɛ adwuma kɛse nti, efi ne pɛ mu de n’ankasa ɛlɛtrɔnik bɔ afɔre de bɔ dade a ɛwɔ ase no ho ban. Sɛ mfiri sɛe dade a ɛda hɔ kwa no a, batere ketewaa bi ba. Zinc a atwa ho ahyia no yɛ adwuma sɛ anode, na dade a ɛda adi no bɛyɛ cathode. Zinc no pɛ sɛ ɛyɛ oxidize ma ɛbɛyɛ zinc carbonate. Saa aduru a efi mu ba yi yɛ ade a ɛbɔ ho ban wɔ nsensanee no so. Wɔ dwumadie a mfasoɔ wɔ so mu no, saa afɔrebɔ afiri yi bɔ dadeɛ a ɛda adi no ho ban denneennen kɔsi 5mm ring diameter.
Nkwa Nna Sikasɛm
Sɛ wɔn a wɔyɛ no de di dwuma yiye a, saa afiri a ɛbɔ ho ban abien yi ma nneɛma no nkwa nna kyɛ kɛse. Zinc coatings a ɛkorɔn ma ɛnyɛ den sɛ ɛbɛma mfe 50+ nkwa nna wɔ standard wim tebea horow mu. Saa ahoɔden a ɛyɛ nwonwa yi ma ɛho ka a wɔbɔ wɔ nsiesie ho daa no fi hɔ. Ɛho nhia bio sɛ adwumayɛbea so ahwɛfo yɛ nhyehyɛe a wɔde bɛyɛ afuw mu mfonini a ɛto so abien a ne bo yɛ den. Nsɛm no yɛ adwuma afe biara ara kwa.
4-Anamɔn Standard Hot-Dip Galvanizing Adeyɛ no
Nnwumayɛbea ahorow a ɛwɔ soro no di adwumayɛ ho nhyehyɛe a ɛyɛ katee (SOP) akyi. Saa protocol a ɛyɛ katee yi hwɛ hu sɛ metallurgical bonding a edi mũ. Ase hɔ no yɛ anammɔn 4 a wɔde di dwuma wɔ adwumayɛkuw no nyinaa mu a ɛyɛ gyinapɛn.
Ɔfã 1: Nneɛma a Wɔde Hohoro So (Degreasing & Pickling) .
Ade a wɔde kata so a mfomso biara nni ho hwehwɛ sɛ wɔde biribi kata so a mfomso biara nni ho. Facilities di kan de dade no hyɛ alkaline solutions a ɛyɛ hyew mu. Eyi yi efĩ, ngo, ne nneɛma a ɛde efĩ ba a nkwa wom fi hɔ. Afei, wɔde ade no gu ade a wɔde yɛ pickling a hydrochloric acid (anaasɛ sulphuric acid a ɛyɛ hyew) a ɛwɔ baabi a ɛhɔ yɛ hyew mu. Saa aguaree a acid wom yi yi owiyammo mu nsensanee ne dade oxides fi hɔ.
Adeyɛ a Ɛyɛ Paara: Srade a ɛnnɔɔso da so ara yɛ ade titiriw a ɛde 'bare spots' ba bere a wɔreyɛ nhwehwɛmu a etwa to no.
Ɔfã 2: Fluxing
Sɛ wɔhohoro dade no akyi a, ɛkɔ fluxing. Adwumayɛfo de afã horow no gu zinc ammonium chloride aduru a wɔayɛ no hyew akodu 65–80°C mu. Flux no yi microscopic oxides a etwa to biara fi hɔ. Nea ɛho hia sen saa no, ɛsakra sɛnea dade no ani twetwe no. Saa nnuru nsakrae yi ma zinc a wɔabɔ no tumi 'wet' dade no yiye bere a ɛhyɛn mu no.
Ɔfã 3: Galvanizing Bath no
Afei dade no hyɛn kettle kɛse no mu. Zinc a wɔanwene a wɔhwɛ so pɛpɛɛpɛ bɛyɛ 450°C (842°F) na ɛwɔ saa aguaree yi mu. Nsuo a wɔtaa de gu nsuo mu no di simma 4–5, ɛwom sɛ adan no afã a emu yɛ duru hwehwɛ bere pii de. Wɔ ɔhyew a ɛba yi mu no, dade ne zinc a ayɛ hyew no yɛ adwuma denneennen. Saa adeyɛ yi na ɛyɛ zinc-dade a wɔde afrafra a ɛyɛ den no.
Mfomso a Ɛtaa Di: Sɛ wotwe dade no ntɛmntɛm dodo a, ɛmma aduru a ɛfata ntumi nkɔ so, na ɛma nneɛma a wɔde kata so a ɛyɛ tratraa na ɛyɛ mmerɛw.
Ɔfã 4: Ayaresa akyi & Dum
Sɛ wɔtwe a, adwumayɛbea no ma dade no dwo ntɛm ara. Wɔtaa de nsu a wɔde dum anaa mframa a wɔahyɛ so a ɛma onwini di dwuma. Onwini a ɛba ntɛmntɛm no ma dade a ɛyɛ adwuma no gyae. Ɛsan nso hyɛ ahwehwɛ a ɛwɔ soro nsusuwii a ɛda nsow no ho nkuran. Nnwumakuw no frɛ saa nhwɛso a ɛda nsow wɔ aniwa so yi sɛ 'spangle.'.
Nneɛma a Wɔyɛ Galvanized Steel Coil ne Sheet (Kɔ so Di Dwuma) .
Bere a batch galvanizing yɛ adwuma yiye ma structural beams no, OEM ne fabricators hwehwɛ sɛ wɔyɛ nneɛma pii. Ntrɛwmu a ɛkɔ so yɛ adwuma no tu mmirika 24/7 ma ɛyɛ dodow kɛse a dade a wɔde galvanized ayɛ a wɔde yɛ coil . Saa nhama a wɔde afiri yɛ yi de dade a ɛkɔ akyiri di dwuma de hwɛ hu sɛ ɛyɛ pɛpɛɛpɛ.
Sendzimir Ɔkwan (Oxidation-Reduction) no .
Nnɛyi nhama a ɛkɔ so no taa de Sendzimir kwan no di dwuma. Dade a wɔmfa nhyehyɛ mu no bue ntɛmntɛm na ɛfa fononoo a wɔde hyew nneɛma a ɛkɔ so yɛ hyew mu a ɛkɔ soro kodu 980°C.
Wɔ saa akwantu a ɛyɛ hyew yi mu no, wɔn a wɔyɛ adwuma no hyɛ da de oxidize strip no. Afei wɔtew so ntɛm ara san ma ɛyɛ dade kronkron wɔ wim tebea a wɔahyɛ so a ɛtew so mu. Saa nnuru a wɔsan de si hɔ kɛse yi hyew ngo a ɛrehuruhuruw ne carbon nkae nyinaa. Ɛhwɛ hu sɛ zinc a mfomso biara nni ho no bɛbata ho bere a ɛto so abien a nhama no kɔhyɛ zinc kuku a ayɛ hyew no mu no.
Coating Thickness Control a Wɔde Di Dwuma
Pɛpɛɛpɛ kyerɛkyerɛ nneɛma a wɔyɛ a ɛkɔ so daa mu. Sɛnea ɛte no galvanized dade krataa fi zinc kuku no mu tẽẽ, ɛfam wɔ nnwinnade a ɛyɛ pɛpɛɛpɛ ntam.
Ɔkwan a Wɔfa so Yɛ Mframa Sekan: Nsu a wɔde hyɛ nsu mu a wɔayɛ no pɛpɛɛpɛ no tena baabi a ɛne dade a ɛretu mmirika no ntam kwan yɛ milimita. Wɔbɔ mframa a wɔahyɛ no den kɛse anaasɛ nsu a ɛyɛ hyew dodo wɔ strip no so tẽẽ. Saa agyan a aniwa nhu yi popa zinc a wɔanwene dodo no honam fam, na ɛpia no san kɔ kuku no mu.
Procurement Note: Mframa sekan a ɛyɛ pɛpɛɛpɛ na ɛkyerɛ biribiara. Mframa sekan a wɔansusuw ho no ma nneɛma a wɔde kata so a ɛnyɛ pɛpɛɛpɛ. Eyi nya ɛka a wɔbɔ no yiye ne adwumayɛ a wɔyɛ ma coil akɛse a wɔkra no nyinaa so nkɛntɛnso tẽẽ. Sɛ woresusuw wɔn a wɔde nneɛma ma no ho a, ɛsɛ sɛ wubisa wɔn mframa sekan a wɔde di dwuma no ho asɛm pefee.
Akwan foforo a wɔfa so yɛ nneɛma vs. Hot-Dip
Hot-dip da so ara yɛ nnwuma gyinapɛn a ɛma ɛtra hɔ kyɛ kɛse. Nanso, mfiridwumayɛfo de akwan foforo a wɔfa so yɛ nneɛma di dwuma ma nsɛm pɔtee bi a wɔde di dwuma. Ɛsɛ sɛ wode ɔkwan no ne w’adwuma no ahwehwɛde ahorow hyia tẽẽ.
Ɔkwan a Wɔfa so Yɛ Nneɛma |
Sɛnea Ɛyɛ Adwuma |
Asɛm a Wɔde Di Dwuma Titiriw |
Mfaso Titiriw a Ɛwɔ So |
Electro-galvanizing a ɛma anyinam ahoɔden yɛ adwuma |
Direct current nam electrolyte solution (Cold Process) so de zinc ions kɔ baabi foforo. |
Kar nipadua-fitaa (BIW) abɔnten so nnua. |
Pɛpɛɛpɛ kɛse, tratraa a wɔde kata so a eye ma mfonini a emu dɔ ne kar mfonini. |
Galvanealing a wɔde yɛ adwuma |
Hot-dip nhyehyɛe a edii akyi ntɛm ara wɔ in-line thermal annealing. |
HVAC panels, adansi anim a wotumi hu kɛse. |
Ɔbɔ matte-gray alloy soronko a egye paint a enni primer. |
Di kan yɛ galvanizing |
Dade a wɔabobɔw no nya zinc a wɔde kata so bere nyinaa ansa na wɔatwa no awiei koraa. |
Unistrut akwan, cable trays, nsu afiri a wɔde fa nsu mu. |
Ɛyɛ pɛ kɛse na ɛho ka sua ma akuw akɛse. |
Hot-Dip Batch a ɛyɛ hyew |
Wɔde dade a wɔayɛ no hyɛ zinc a wɔabɔ no mu koraa. |
Nneɛma a emu yɛ duru, abɔnten so adan, abɔnten so adansi ho nhyehyɛe. |
Maximum coating thickness ne ne nyinaa kata anoano / welds. |
Electro-galvanizing (Awɔw mu Adeyɛ) .
Saa kwan yi huruw ɔhyew no koraa. Zinc ions nam nnuru a wɔde yɛ electrolyte solution a wɔde current tẽẽ di dwuma so kɔ dade no mu. Ɛma wonya ade a wɔde kata so a ɛyɛ pɛpɛɛpɛ yiye na ɛyɛ tratraa. Wɔn a wɔyɛ kar no de wɔn ho to saa kwan yi so kɛse ma nipadua no mu nneɛma. Layer a ɛyɛ tratraa no di stamping a emu dɔ ho dwuma pɛpɛɛpɛ. Bere a ɛhoahoa ne ho sɛ ɛko tia nsɛe koraa sɛ wɔde toto ɔhyew a wɔde gu mu ho a, ɛma wonya ntama a mfomso biara nni ho ma kar mu paint nhyehyɛe ahorow.
Galvanealing (Ɔhyew a Wɔde Yɛ Nneɛma) .
Galvanealing de anammɔn foforo ba line a ɛkɔ so no so. Bere a dade no fi zinc aguaree no mu na ɛfa mframa nnade no ho akyi pɛɛ no, ɛkɔ fononoo bi a wɔde hyew nneɛma mu. Ɔhyew no hyɛ dade a efi dade no ase no ma ɛtrɛw kɔ abɔnten kɔ zinc a wɔde akata so no mu. Eyi ma wonya zinc-dade a ɛyɛ kusuu a ɛyɛ matte-gray. Ɛyɛ nea ɛko tia nsɛe kɛse. Welderfo pɛ efisɛ ɛmma nsu pii npetepete so, na mfoniniyɛfo ani gye ho efisɛ ɛmma enhia sɛ wɔde etching primers di dwuma.
Nneɛma a wɔde yɛ galvanizing (Mill Galvanizing) .
Mpɛn pii no, mfiri a wɔde yɛ dade a wɔabobɔw no de galvanize hyɛ dade a wɔabobɔw mu ansa na wɔn a wɔyɛ nneɛma no atwitwa no ma ayɛ kɛse pɔtee. Ɛma wonya awerɛhyem sɛ biakoyɛ a ɛkyɛn so wɔ asase ani nyinaa. Nanso, ɛkura anohyeto bi a wonim. Nsonsonoe a wɔatwa no da so ara yɛ nea wɔmfa nkata so koraa. Saa anoano a ɛda hɔ kwa yi de ne ho to zinc a atwa ho ahyia no afɔrebɔ anode tumi so koraa de bɔ ho ban. Ɛyɛ adwuma yiye wɔ dan mu nanso ɛpere wɔ po mu mmeae a ɛporɔw kɛse.
Engineering Anohyeto ne Asiane a Wɔtew So
Mfiridwuma mu nneɛma biara wɔ anohyeto ahorow. Saa mmerɛwyɛ ahorow yi ho nhwehwɛmu a ɛda adi pefee no siw adwuma no huammɔdi a ɛyɛ hu ano. Ɛsɛ sɛ wode nsiyɛ yɛ mfiridwuma wɔ asiane pɔtee yi ho.
Nneɛma a Atwa Yɛn Ho Ahyia a Ɛyɛ Den: Zinc sɛe ntɛmntɛm wɔ mmeae a acid pii wom anaasɛ alkaline pii wɔ hɔ. Bere nyinaa ma pH a ɛda adi no nkɔ so katee wɔ 6–12 ntam. Mpɛn pii no, afifide a ɛyɛ den a wɔde yɛ nnuru no hia sɛ wɔde nneɛma foforo a ɛbɔ ho ban kata zinc no so.
Asiane a Ɛwɔ Nneɛma a Wɔkora So (White Rust): Eyi da so ara yɛ nnwumayɛfo tiyɛ kɛse. Sɛ wɔde wɔn ho to nsu a egyina hɔ a mframa pa nkɔ mu bere a wɔde sie a, ɛma oxidation yɛ ntɛmntɛm. Zinc no dan zinc hydroxide, ade fitaa a ɛte sɛ powder. Eyi sɛe ade a wɔde kata so no ansa na wɔafi ase mpo de ahyɛ mu. Bere nyinaa fa bundles sie dan mu, ma so, na fa ahinanan na ama nsu atumi akɔ mu.
High-Temperature Failure: Kwati ɔhyew a ano yɛ den a wode bedi dwuma. Sɛ wɔkɔ so de hyɛ mu boro 200°C (392°F) a, ɛsɛe ade no wɔ ne nhyehyɛe mu. Awiei koraa no, intermetallic alloy layers no bɛpepa na atew ne ho afi dade a ɛwɔ ase no ho.
Galvanic Corrosion: Kɔbere a ɛne ne ho di nkitaho tẽẽ no ma anyinam ahoɔden a ɛyɛ hyew no yɛ ntɛmntɛm. Nsu a efi kɔbere adan atifi kɔ zinc nnua so no bɛyi ade a wɔde akata so no afi hɔ ntɛmntɛm. Saa ara nso na nneɛma bi a wɔde kɔbere ayɛ a wɔde siesie nnua bi wɔ hɔ. Fa akwanside ntini di dwuma bere nyinaa wɔ nneɛma a ɛne ne ho nhyia yi ntam.
Asiane a Ɛwɔ Welding Mu: Welding ɔhyew a ɛkɔ soro ma ade a wɔde kata so a ɛbɔ ho ban no yɛ nwini. Saa adeyɛ yi ma zinc oxide wusiw a awuduru wom kɛse fi mu ba. Ɛsɛ sɛ mmeae ahorow no hyɛ mframa a wɔde ma ho nhyehyɛe titiriw ne ɔhome ho nneɛma a ɛfata ma wɔn a wɔyɛ adwuma no nyinaa.
Adetɔ ho Nhwehwɛmu: Nneɛma a Ɛyɛ Pa ne Nea Wɔde Ma no Tumi a Wɔbɛhwehwɛ
Sɛ wobɛpaw nea ɔyɛ no a, ɛhwehwɛ sɛ wɔyɛ nhwehwɛmu a ɛfata wɔ funnel no ase. Worentumi nsusuw adetɔnfo bi ho wɔ tɔn biara bo nkutoo so. Fa nhwehwɛmu kratasin yi yɛ nhwehwɛmu wɔ nneɛma a wɔde ma no adwumayɛbea ahorow ho na hwɛ hu sɛ nneɛma no yɛ papa.
Standard Compliance a Wɔde Di Dwuma
Mma nnye dade a wonni tumi krataa ntom da. Ɛsɛ sɛ wohwɛ sɛ wodi amanaman ntam gyinapɛn ahorow so denneennen. Bisa mill sɔhwɛ adansedi nkrataa a wɔayɛ no foforo. Hwehwɛ ASTM A123 ma fabricated structural profiles. Sɛ wopɛ sɛ wokɔ so yɛ krataa a, hwehwɛ sɛ wodi ASTM A653 so. Europa gua ahorow taa hwehwɛ EN gyinapɛn ahorow a ɛne no sɛ, bere a Asia gua ahorow de JIS nkyerɛkyerɛmu ahorow di dwuma.
Coating Mu duru vs. Nea ɛyɛ den
Hwɛ sɛ wo supplier no de data mapping a ɛda adi pefee ma kɔ G-ratings pɔtee bi so. Wɔ Amerika Atifi fam no, G90 rating kyerɛ sɛ dade no kura zinc ounces 0.90 wɔ anammɔn ahinanan biara mu (ne nyinaa yɛ afã abien no nyinaa). G60 bi soa kakraa bi. Fa ade a wɔde kata so no mu duru ne nneɛma a atwa yɛn ho ahyia a wohwehwɛ no hyia tẽẽ. Mpoano mmeae hwehwɛ sɛ wɔde nneɛma a emu yɛ duru kata so, bere a HVAC ducting a ɛwɔ dan mu no tra ase ntɛm wɔ gauges a emu yɛ hare so.
Nhwehwɛmu a Wɔde Ani Hu Ho Nhwehwɛmu
High-quality output hwɛ sɛ ɛho tew. Ɛsɛ sɛ wopo nneɛma a wɔde mena a ɛkyerɛ sɛ sintɔ ahorow a emu yɛ den. Hwɛ sɛnea wɔde nneɛma rekɔma no yiye. Hwɛ yiye wɔ dross inclusions, a ɛte sɛ nea ɛyɛ nnam na anhwea akisikuru wɔ soro. Hwɛ sɛ mmeae a ɛda hɔ kwa a zinc no antumi ankyekyere no anaa. Pow nneɛma a flux staining a emu yɛ den wom, efisɛ eyi kyerɛ sɛ wɔmfa ahotew ho nhyehyɛe a enye wɔ adwumayɛbea hɔ.
Botae a Ɛwɔ Bere Tenten a Wɔbɛhwehwɛ Mu
Dan w’adwene a wode si nneɛma a wobɛtɔ so no fi ɛka a wɔbɔ wɔ nneɛma a wotɔ ho mfiase no ho. Bu sikasɛm mu mfaso a ɛbɛtra hɔ akyɛ no ho akontaa. Factor wɔ sɛnea wobeyi adan a wosiesie daa no afi hɔ koraa no mu. Susuw sika kɛse a wɔbɛkora so afi nnwinnade a wɔbɛkwati sɛ wɔmfa nyɛ adwuma mu no ho hwɛ. Eyi da adi sɛ ɛho hia titiriw ma mframa, owia, ne telefon so nkitahodi agyapade a ɛwɔ akyirikyiri. Awiei koraa no, bu akontaa fa afuw mu mfoniniyɛ ho ahwehwɛde a ɛto so abien a enni hɔ bere a wɔde si hɔ no ho.
Awie
Ɔkwan a wɔfa so yɛ no na ɛkyerɛ sɛnea wo nneɛma no yɛ dade a etwa to. Hot-dip line a ɛkɔ so yɛ coil akɛse no di mfiridwuma ahiade ahorow a ɛsono koraa ho dwuma sen electroplating line a ɛyɛ kar panels. Zinc afɔrebɔ anode su soronko no ma ahobammɔ a ɛso bi nni wɔ nneɛma a emu yɛ den ho.
Ɛsɛ sɛ wo mfiridwuma ne adetɔ akuw no yɛ nhwehwɛmu daa wɔ nneɛma a wɔde ma no adwumayɛbea ahoɔden ho. Hwɛ wɔn annealing furnace mfiridwuma na hwɛ sɛ wɔn mframa sekan no yɛ pɛpɛɛpɛ. Bere nyinaa fa galvanizing kwan pɔtee no ne nneɛma a atwa yɛn ho ahyia ne nhyehyɛe a wɔhwehwɛ wɔ wo beae no hyia pɛpɛɛpɛ.
Mma honam fam dwumadi nnyɛ nea ɛbae ara kwa. Bisa nneɛma nhwɛsode, bisa sɛ wɔmfa nsɛm a ɛkɔ akyiri mma, anaa yɛ nhyehyɛe ma wo ne nea ɔde nneɛma ma wo no nkɔ mfiridwuma ho nkɔmmɔ nnɛ na ama woahwɛ ahu sɛ wo adwuma a edi hɔ no begyina bere sɔhwɛ ano.
FAQ
Asɛmmisa: Bere tenten ahe na hot-dip galvanizing nhyehyɛe no gye?
A: Bere a zinc a wɔabɔ no a wɔde gu nsu mu ankasa no gye simma 4-5 pɛ no, kyinhyia a edi mũ no gye bere tenten kɛse. Sɛ wɔhohoro nneɛma a ɛwɔ soro yiye, siesie acid, fluxing, coating, ne cooling gye bere. Mpɛn pii no, galvanizers a wɔde di gua no hwehwɛ sɛ wɔde nnafua 3 dannan a wɔahyɛ da ayɛ na ama wɔawie adwuma no nyinaa yiye.
Asɛmmisa: Nsonsonoe bɛn na ɛda galvanized steel coil ne sheet ntam?
A: Coils yɛ dade a wɔayɛ ho adwuma a wɔabobɔw akɛse a ɛkɔ so. Wɔn a wɔyɛ no de kɔma wɔn a wɔyɛ nneɛma a wɔasiesie wɔn ho sɛ wɔbɛkɔ so ayɛ nhoma mmobɔwee anaasɛ wɔde stamping a emu dɔ ayɛ no kɛse. Nkratafa yɛ coil ahorow a adwumayɛbea ahorow abue, ayɛ no petee wɔ levelers mu, na wɔatwitwa no tenten pɔtee bi ma wɔayɛ no ntɛm ara, wɔ baabiara kɛkɛ.
Asɛmmisa: Dɛn nti na ɛtɔ mmere bi a dade a wɔde galvanized ayɛ no te sɛ nea ɛhyerɛn na ɛtɔ mmere bi nso a ɛyɛ kusuu?
A: Sɛnea aniwa hu, a wɔfrɛ no spangle, gyina onwini dodow ne zinc aguaree nnuru pɔtee so koraa. Wɔn a wɔyɛ nneɛma no hyɛ da nam galvanealing kwan no so yɛ nneɛma a ɛyɛ kusuu a ɛyɛ matte-gray. Saa dull finish yi ma adhesion a eye kɛse ma secondary paint applications.
Asɛmmisa: So wubetumi ayɛ dade a wɔde galvanized ayɛ no weld?
A: Yiw, nanso egye sɛ wosiesie wo ho yiye. Ɛsɛ sɛ wode mfiri yam zinc a wɔde akata so no wɔ weld joint tẽẽ no so na ama woahwɛ ahu sɛ weld no mudi mu kura koraa. Bio nso, welding ma zinc yɛ nwini, na ɛma wusiw a awuduru wom fi mu ba. Ɛsɛ sɛ sotɔɔ ahorow de mfiri a wɔde yi wusiw a emu yɛ duru di dwuma de bɔ wɔn a wɔyɛ adwuma no ho ban.
