Dɛn Ne Hot Dip Galvanizing?
Hot dip galvanizing yɛ post-fabrication corrosion ahobammɔ nhyehyɛe a wɔde dade anaa dade afã horow a wɔatew ho no hyɛ mu koraa wɔ zinc aguaree a wɔabɔ no mu, a wɔtaa hwɛ so wɔ815–850 digrii F (435–455 digrii ) .ne zinc bath chemistry a wɔakyerɛ wɔ aseASTM B6. Sɛ dade no ani di nkitaho a, zinc ne dade yɛ adwuma na ɛyɛ zinc-dade a wɔde afrafra a ɛne akyi zinc a ɛwɔ akyi no yɛ adwuma. Saa dade a wɔde yɛ ade yi ne nsonsonoe titiriw a ɛda hot dip galvanizing ne ade a wɔde kata so a ɛnyɛ den ntam.
Esiane sɛ wɔyɛ adeyɛ no bere a wɔatwitwa, wɔatutu, wɔabɔ, na wɔayɛ no akyi nti, hot-dip galvanized coating betumi abɔ anoano, ntwea so, bolt ntokuru, weld mmeae, brackets, ne complex fabricated geometry ho ban wɔ immersion cycle biako mu. Eyi ma ɛfata ma dade afã horow a ɛda abɔnten wim tebea, afifide mu nsu a ɛyɛ nwini, kwan so nkyene, nsu a ɛpetepete, ne bere tenten a wɔde siesie, a nea ɛka ho ne adan a wɔde yɛ nneɛma, paipu a wɔde gyina so, awɛmfo a wɔde bɔ nneɛma, nneɛma a wɔde di dwuma, ne dade a wɔayɛ.
Ɛnyɛ hann nkutoo na ebu dade a wɔde galvanized a ɛyɛ hyew-dip no su. Mpɛn pii no, adwumayɛfo nhwehwɛmu twe adwene si ade a wɔde kata so no mu duru, sɛnea ɛkɔ so wɔ soro, nea ɛbata ho, mmeae a ɛda hɔ kwa anaasɛ wɔmfa nkata so, tebea a wɔde siesie, ne gyinapɛn a ɛfata te sɛASTM A123 na ɛwɔ hɔ, ASTM A153 na ɛwɔ hɔ, ASTM F2329 na ɛwɔ hɔ, ASTM A780 na ɛwɔ hɔ, anaasɛISO 1461 na ɛwɔ hɔ. Wɔ ɔkwan a mfaso wɔ so no, wɔpaw hot dip galvanizing bere a dade afã horow hia zinc a wɔde kata so a wotumi susuw na ɛyɛ den a ebetumi abɔ nneɛma a wɔayɛ ankasa ho ban sen sɛ ɛbɛma ayɛ nea ɛho tew kɛkɛ no.
Ɔkwan Bɛn so na Hot-Dip Galvanizing Yɛ Adwuma?
Hot-dip galvanizing yɛ adwuma denam controlled metallurgical reaction ntamzinc a wɔabɔ ne dade a ɛho tew a ɛwɔ soro. Bere a wɔayi srade afi dade no so, ayɛ no aduru, na ayɛ no flux awie no, ngo, nkannare, owiyammo mu nsensanee, ne oxides nni dade no ani, na ɛma zinc a wɔabɔ no tumi ne dade a ɛda hɔ kwa no di nkitaho tẽẽ. Sɛ ɔfã no hyɛn zinc kettle no mu pɛ a, zinc ma n’anim yɛ nwini na efi ase trɛw kɔ dade no akyi fã no mu.
Bere a wɔde regu nsu mu no, zinc ne dade yɛ adwuma ma ɛyɛ nea ɛtoatoa sozinc-dade a ɛwɔ dade ntama enyin fi dade no ani kɔ abɔnten. Sɛ wɔtwe ɔfã no a, zinc a ne fã kɛse no ara yɛ kronkron no da so ara wɔ akyi na ɛyɛ den sɛ nea etwa to. Nea efi mu ba ne nhyehyɛe a wɔde kata dade no so denam sɛnea wɔyɛ no so, na ɛnyɛ nea wɔde mfiri a wɔde bata ho kɛkɛ, na ɛboa ma ade a wɔde kata so no di anoano, ntwea so, mmeae a wɔde weld, bolt ntokuru, ne nsɛm afoforo a wɔayɛ bere a wɔhwɛ so yiye sɛ wɔresiesie, mframa a ɛkɔ mu, ne nsu a ɛkɔ mu no.
Yebetumi ate adeyɛ no ase wɔ akwan abiɛsa so:
- Wɔde nnuru na ɛhohoro dade no anienti zinc tumi ne dade a ɛda hɔ kwa no di nkitaho.
- Zinc a ayɛ nwini ne dade yɛ adwumana ɛyɛ zinc-dade a ɛwɔ dade ntam.
- Nneɛma a wɔde kata dade no so no bɔ dade no ho bandenam akwanside ahobammɔ, afɔrebɔ ahobammɔ, ne bere tenten-zinc patina a wɔhyehyɛ so.
Eyi nti na ahosiesie a wɔyɛ wɔ asase ani ho hia no. Sɛ ngo, nkannare, owiyammo mu nsenia, paint, welding slag, anaa oxide da so ara wɔ soro a, zinc ntumi nyɛ ade a ɛkɔ so yɛ ade. Ebia nea ebefi mu aba ne nsensanee a ɛda hɔ kwa, ade a wɔde kata so a ennyin yiye, anaasɛ ade a wɔde kata so a ɛkɔ so yɛ mmerɛw.
Hot-dip galvanized steel bɔ dade a ɛwɔ ase no ho ban wɔ akwan pii so:
- Akwanside ho ahobammɔ:zinc a wɔde kata so no tetew dade fi oxygen, nsu, ne nneɛma a ɛma nneɛma asɛe ho.
- Katodfo ahobammɔ:sɛ wɔayam ade a wɔde kata so no a, zinc bɛsɛe na ɛboa ma wɔbɔ dade a ɛbɛn a ɛda adi no ho ban.
- Patina ahobammɔ:bere a wim tebea asɛe akyi no, zinc no ani nya nneɛma a ɛyɛ den a ɛma nsɛe no yɛ brɛoo.
Saa nkabom yi ne nea ɛma hot dip galvanizing yɛ soronko wɔ zinc a wɔde kata so anaasɛ paint nhyehyɛe a ɛyɛ tratraa pii ho.
Hot Dip Galvanizing Adeyɛ Anamɔn
Hot dip galvanizing fi ase denam soro ahosiesie so, efisɛ zinc a wɔabɔ no tumi ne dade a ɛho tew nkutoo na ɛyɛ adwuma yiye. Ngo, nkannare, owiyammo mu nsensanee, weld slag, anaa nsu a akyea betumi asiw zinc ano na ama nsensanee a ɛda hɔ kwa anaasɛ nea wɔde kata so no anyin pɛpɛɛpɛ. Sɛ wɔhohoro na wɔde fluxing wie a, wɔde dade no hyɛ zinc a wɔabɔ no mu, baabi a zinc-dade a wɔde afrafra ayɛ wɔ soro. Afei nhwehwɛmu a etwa to no hwɛ sɛ ebia ade a wɔde kata so no kɔ so, wotumi susuw, na wogye tom sɛ wɔde yɛ adwuma anaa.
| Anamɔn | Kwan | Mfiridwuma Botae |
|---|---|---|
| 1 | Degreasing / caustic ahotew a wɔde tew nneɛma ho | Yi ngo, srade, efĩ, ne efĩ a ɛwɔ abɔde mu no fi hɔ |
| 2 | Pickling a wɔde yɛ aduan | Yi nkannare ne mill scale fi dade no ani |
| 3 | Nsu a wɔde hohoro nneɛma ho | Ɛtew nnuru a wɔde fa nsukorabea ahorow ntam no so |
| 4 | Fluxing a wɔde yɛ adwuma | Yi oxide a emu yɛ hare fi hɔ na ɛboa ma zinc a wɔabɔ no ma dade no yɛ nsu |
| 5 | Drying / preheating a wɔde yɛ ade | Ɛtew nsu a ɛwɔ mu so ansa na wɔde ahyɛ nsu mu |
| 6 | Wɔde gu zinc a wɔayam mu | Ɛnam dade a wɔde yɛ adwuma so na ɛyɛ zinc-dade a wɔde afrafra ntoatoaso |
| 7 | Nsu a wɔtwe fi mu ne nsu a wɔde gu mu | Yi zinc a ɛboro so fi hɔ na ɛhwɛ sɛnea nneɛma a wɔde kata so no boaboa ano no so |
| 8 | Onwini a wɔde ma | Ɛma nea wɔde akata so no gyina pintinn |
| 9 | Nhwehwɛmu a wɔyɛ | Hwɛ sɛnea ade a wɔde kata so no mu duru, sɛnea ɛte, mmeae a ɛda hɔ kwa, ne mmeae a wosiesie |
Download:Hot Dip Galvanizing Adeyɛ Nhwehwɛmu Nhoma
Wɔ batch galvanizing adwuma dodow no ara mu no, wɔde dade a wɔayɛ no gu nsu mu bere a wɔatwitwa, ayɛ welding, wɔatutu fam, anaasɛ wɔayɛ no awie no. Eyi ho hia efisɛ anoano, ntokuru, mmeae a wɔde weld ayɛ, ne nneɛma a wɔayɛ no nyinaa betumi anya zinc a wɔde kata so wɔ nsu mu kyinhyia biako mu, sɛ sɛnea wɔayɛ no ma kwan ma mframa ne nsu fi mu yiye a.
HDG Coating Layers ne Corrosion Ahobammɔ
Nneɛma a wɔde kata so no ne mfiridwuma mu ade a ɛho hia sen biara wɔ hot dip galvanizing mu. Hot-dip galvanized coating nyɛ zinc film a ɛho tew biako. Ɛyɛ nhyehyɛe a ɛwɔ ntoatoaso a ɛnam diffusion ne reaction a ɛda zinc ne iron ntam so na ɛyɛ.HDG a wɔde kata so a wɔtaa de kata so no bi ne zinc-dade a wɔde afrafra ntoatoaso a ɛbɛn dade no ani ne zinc a ɛho tew a ɛwɔ akyi.
| Coating Zone a Wɔde Kata Nneɛma So | Layer a Wɔtaa Yɛ | Su Titiriw a Ɛwɔ Hɔ | Dwumadie |
|---|---|---|---|
| Dade a wɔde gyina so | Dade a wɔde yɛ ade | Nneɛma a wɔde yɛ nhyehyɛe | Ɛma ahoɔden ne adesoa tumi |
| Mfinimfini alloy layer | Gamma a wɔde hyɛ mu | Zinc-dade a ɛyɛ tratraa a ɛbɛn dade no | Ɔbɔ dade ho nkitahodi a edi kan |
| Mfinimfini alloy layer | Delta layer a ɛwɔ hɔ | Dense zinc-dade a wɔde afrafra a ɛyɛ den | Ɛde hardness ne abrasion resistance ka ho |
| Abɔnten so aduru a wɔde yɛ ade | Zeta layer a ɛwɔ hɔ | Zinc-a ɛdɔɔso a wɔde ayɛ aduru | Boa coating thickness ne durability |
| Abɔnten so | Eta layer | Dodow no ara yɛ zinc a ɛho tew | Ɛma wim tebea ho ban ne afɔrebɔ ahobammɔ |
| Wim tebea a asɛe asase ani | Zinc patina a wɔde yɛ adwuma | Nneɛma a ɛma zinc nsɛe a ɛyɛ den | Ɛbrɛ nsɛe a ɛkɔ so wɔ wim tebea mu no ase |
Download:Hot-Dip Galvanized Coating Anatomy ne Nsuo AhobammɔKwankyerɛ
Zinc-dade a wɔde afrafra no yɛ den sen zinc a ɛho tew na ɛbata dade no ho denneennen. Eyi boa ma ade a wɔde kata so no ma ɛko tia sɛe a wɔde di dwuma, akwantu a ɛyɛ mmerɛw, nea wɔde si hɔ a ɛne ne ho di nkitaho, ne mpɔtam hɔ a ɛbɛsɛe wɔ anoano anaa ntwea so. Eta akyi fã no yɛ mmerɛw na ɛyɛ ductile kɛse, na ɛboa ma ɛtwetwe nsunsuanso nketenkete na ɛma zinc no ani titiriw ma wim tebea.
Nea Enti a Layered Structure no Ho Hia
Layered coating no ma hot-dip galvanized dade mfaso pii a mfaso wɔ so:
- Wɔnam dade a wɔde yɛ ade so de ade a wɔde kata so no bata dade ho.
- Mpɛn pii no, wɔde kata ntwea so ne anoano so yiye efisɛ wɔde ɔfã a wɔayɛ no nyinaa hyɛ nsu mu.
- Nneɛma nketenkete a wɔde kata so no mma dade no nsɛe ntɛmntɛm ntɛm ara.
- Zinc betumi de afɔrebɔ ahobammɔ ama wɔ nsensanee nketenkete anaa mmeae a wɔatwitwa ho.
- Wobetumi asusuw ade a wɔde kata so no, ahwɛ mu, na wɔde gyinapɛn ahorow akyerɛ.
Saa nhyehyɛe a wɔayɛ no ntoatoaso yi nso ne nea enti a HDG a wɔde kata so no hwɛbea betumi ayɛ soronko no. Afã horow bi yɛ hann na ɛyɛ nsensanee, bere a afoforo nso yɛ fitaa a ɛyɛ kusuu anaasɛ ɛyɛ matte. Sɛ obi yɛ fitaa a ɛyɛ kusuu a, ɛnkyerɛ ara kwa sɛ ɛnyɛ galvanizing a enye. Dade mu nnuru, titiriw silicon ne phosphorus a ɛwɔ mu no betumi ama zinc-dade a wɔde afrafra anyin ntɛmntɛm na ama ayɛ ade a ɛyɛ den na ɛyɛ tuntum a wɔde kata so.
Zinc Patina ne Bere Tenten-Ahobammɔ
Bere a wɔde dade a wɔde galvanized a ɛyɛ hyew-dip ahyɛ wim akyi no, akyi zinc no fi ase ne oxygen, nsu, ne carbon dioxide yɛ adwuma. Bere kɔ so no, zinc patina a ɛyɛ den ba wɔ soro. Saa patina yi brɛ zinc no nsɛe so na ɛma nkwa nna kyɛ.Nanso, ɛsɛ sɛ wɔkora dade a wɔde galvanized foforo ayɛ no yiye. Sɛ wɔboaboa afã horow no ano denneennen wɔ tebea horow a ɛyɛ nsu a mframa nkɔ mu a, nkannare fitaa betumi ayɛ. Mpɛn pii no, nkannare fitaa ne nsu a akyea ne mframa a ɛnkɔ yiye bere a wɔde sie anaasɛ wɔde rekɔ no wɔ abusuabɔ, na ɛnyɛ nea ɛkyerɛ sɛ galvanizing nhyehyɛe no ankasa adi nkogu.
Wɔ nnwuma a ɛfa abɔnten so nneɛma a wɔkora so, po so akwantu, anaa akwan tenten a wɔfa so de nneɛma kɔ ho no, ɛsɛ sɛ wɔhyehyɛ afã horow a wɔde galvanized ayɛ no na wɔde sie:
- nsuo a ɛkɔ nsuo mu a ɛda nneɛma a ɛwɔ soro ntam
- dry storage wɔ baabi a ɛbɛyɛ yiye
- mframa a ɛkɔ nipadua no mu yiye
- nnuru a ano yɛ den a wɔtew wɔn ho fi ho
- nhwehwɛmu ansa na wɔde ahyɛ mu
Hot Dip Galvanizing Gyinapɛn ne Nhwehwɛmu
Ɛsɛ sɛ wɔkyerɛ hot dip galvanizing na wɔhwɛ sɛnea gyinapɛn a ɛfata te. Gyinapɛn ahorow fa dade a wɔde yɛ adan, nneɛma a wɔde yɛ adwuma, ade a wɔde hyɛ mu den, nneɛma a wɔde kyekyere nneɛma a wɔde nhama ayɛ, ne mmeae a wosiesie ho.
| Susudua | Nneɛma a Wɔtaa Yɛ |
|---|---|
| ASTM A123 / A123M na ɛwɔ hɔ | Zinc hot-de galvanized coatings gu dade ne dade nneɛma so |
| ASTM A153 / A153M na ɛwɔ hɔ | Zinc a wɔde kata dade ne dade a wɔde yɛ nneɛma so |
| ASTM A767 / A767M na ɛwɔ hɔ | Zinc-a wɔde akata dade a ɛhyɛ den so |
| ASTM F2329 / F2329M na ɛwɔ hɔ | Hot-dip zinc coating ma carbon ne alloy dade bolts, screws, washers, nuts, ne threaded fasteners |
| ASTM A780 na ɛwɔ hɔ | Siesie mmeae a asɛe ne nea wɔmfa galvanized nkata so |
| ISO 1461 na ɛwɔ hɔ | Hot dip galvanized coatings wɔ dade ne dade nneɛma a wɔayɛ so |
Ɛnyɛ nhwehwɛmu a wɔde aniwa hu nkutoo. Mpɛn pii no, HDG nhwehwɛmu a mfaso wɔ so no bi ne sɛnea wɔsusuw sɛnea wɔde aduru a wɔde kata so no mu duru, hwɛ sɛnea ɛte, hwɛ mmeae a ɛda hɔ kwa, nhwehwɛmu a wɔde siesie, ne si so dua sɛ nsu a ɛkɔ nsu mu anaa mframa a ɛkɔ mu no agyiraehyɛde no nka sɛnea wɔpɛ sɛ wɔde di dwuma no.
Nneɛma a wɔtaa de yɛ nhwehwɛmu no bi ne:
- Nneɛma a wɔde kata so no mu duru:a wɔde magnetic thickness gauge anaa akwan foforo a wogye tom susuw.
- Sɛnea ɛte wɔ soro:wɔhwɛɛ sɛ ebia ɛyɛ mmerɛw, akuru, mmirikatu, nsõ, nsu a ɛyɛ fĩ, anaasɛ ɛboaboa ano dodo.
- Mmeae a ɛda hɔ kwa:wɔasan ahwɛ mu de ahu sɛ ebia ɛho hia sɛ wosiesie anaa.
- Nneɛma a wɔde bata ho:wɔahwɛ mu bere a gyinapɛn anaa adwuma no ho nkyerɛkyerɛmu a ɛwɔ hɔ no hwehwɛ.
- Mmeae a wɔde nhama ayɛ:wɔasan ahwɛ mu sɛ ɛfata bere a wɔde akata baabi a bolt, nnua, anaa afã horow a wɔde nhama ayɛ no awie no.
- Mmeae a wosiesie:wɔasiesie no sɛnea ɔkwan a wɔakyerɛ sɛ wɔfa so siesie ne gyinapɛn ahorow a wɔde gye tom no te.
Wɔ dade a wɔayɛ ho no, mpɛn pii no, nea wɔhwehwɛ sɛ ɛyɛ den no gyina dade no mu duru ne nneɛma a wɔde yɛ no so. Ɛsɛ sɛ nkyerɛkyerɛmu a emu da hɔ kyerɛkyerɛ pii mu sen galvanizing ahwehwɛde a ɛwɔ hɔ nyinaa; ɛsɛ sɛ ɛka gyinapɛn a ɛfata, ade no su, baabi a wɔbɛhwehwɛ mu, ne tebea titiriw biara a ɛwɔ soro anaa sɛnea wɔboaboa ano.
Hot Dip Galvanizing vs Afoforo Zinc Coatings
Ɛnyɛ dade a wɔde galvanized ayɛ nyinaa na ɛwɔ ade koro a wɔde kata so. Asɛmfua "galvanized" betumi akyerɛ akwan horow pii a wɔfa so kata zinc so, nanso sɛnea ɛtra hɔ kyɛ, nea wɔde kata so no mu duru, anoano ahobammɔ, ne ɔsom adwumayɛ betumi ayɛ soronko koraa.
| Adeɛ | Ɔhyew-Dip Galvanizing a ɛyɛ hyew | Electro-Galvanizing / Zinc a Wɔde Yɛ Nneɛma | Pre-Dade a Wɔde Galvanized ayɛ |
|---|---|---|---|
| Ɔkwan a wɔfa so kata so | Wɔde dade a wɔayɛ no hyɛ zinc a wɔabɔ no mu | Wɔnam anyinam ahoɔden a wɔde yɛ nneɛma so na ɛde zinc gu mu | Wɔde dade krataa anaa tube kata so ansa na wɔayɛ |
| Coating nhyehyɛe | Zinc-dade a wɔde afrafra a wɔde aka ho ne akyi zinc a wɔde ayɛ | Zinc a wɔde asie a ɛyɛ tratraa | Nkɔ so adwumayɛbea-de zinc a wɔde kata so |
| Bonding a wɔde di dwuma | Nneɛma a wɔde dade yɛ | Nneɛma a ɛwɔ soro a wɔde gu fam | Factory coating ansa na wɔatwitwa anaa ayɛ |
| Edge ahobammɔ | Eye wɔ afã horow a wɔayɛ a wɔde ahyɛ nsu mu | Anohyeto wɔ geometry a ano yɛ nnam so | Ebia anoano a wɔatwa no bɛma dade a ɛda hɔ kwa no ada adi |
| Sɛnea wɔtaa de di dwuma | Structural dade, pipe supports, guardrails, abɔnten afã horow a wɔayɛ | Nneɛma a ɛwɔ dan mu, nneɛma nketenkete, nneɛma a ɛte sɛ nea ɛte -nneɛma a ɛyɛ nkate | Krataa, hann tube, hyehyɛ nneɛma |
| Anohyeto titiriw | Kettle kɛse, mframa a ɛkɔ mu, nsu a ɛkɔ mu, coating buildup | Fa nsuo a ɛyɛ duru-adwuma a ɛyɛ duru a wɔde sie | Ebia mmeae a wɔde weld ayɛ anaa wɔatwitwa no behia ahobammɔ foforo |
Download:Hot-Dip Galvanizing vs Zinc Afoforo a Wɔde Kata So
Wɔtaa pɛ hot dip galvanizing bere a ɛsɛ sɛ wɔbɔ ɔfã a etwa to a wɔayɛ no ho ban bere a wɔayɛ welding, atwitwa, drilling, anaa forming awie no. Pre-galvanized dadeɛ betumi afata ama light-duty sheet anaa tube nneɛma, nanso ntwea a wɔatwa ne welded mmeaeɛ hia sɛ wɔde adwene si so foforɔ. Electro-galvanizing ne zinc plating betumi ama awie a ɛyɛ mmerɛw, nanso wɔtaa de di dwuma wɔ baabi a wogye tom sɛ wɔde ade a ɛyɛ tratraa kata so.
Ɛhe na Wɔde Hot Dip Galvanized Steel Di Dwuma?
Wɔde dade a wɔde galvanized ayɛ a ɛyɛ hyew di dwuma wɔ baabi a ɛsɛ sɛ ahobammɔ a ɛbɔ wɔ nsɛe ho no tra ase wɔ abɔnten anaa mfiridwuma mu ankasa. Nneɛma a ɛfata paa ne deɛ ɛyɛ den sɛ wɔbɛsan ayɛ mfonini, ɛnyɛ den sɛ wɔbɛkɔ mu, anaasɛ dadeɛ no ani betumi ayɛ nsuo, akisikuru, anaa wim tebea a ɛbɛtena hɔ kyɛ.
Tebea horow a wɔtaa de di dwuma no bi ne:
- Abɔnten so adan a wɔde yɛ nneɛma:adan a wɔde kar sisi, asɛnka agua, antweri, nsateaa, ne nnua a wɔde gyina so a osu, nsu a ɛyɛ nwini, ne wim efĩ betumi aba.
- Pipe racks ne paipu a wɔde gyina so:brackets, saddles, hangers, ne support steel a wɔde di dwuma wɔ afifide a nsu a ɛyɛ nwini, nsu a ɛpetepete, ne nea wɔde kata so betumi asɛe bere a wɔde resi hɔ no.
- Ɔkwan kɛse no afã horow:awɛmfo apon, nsɛnkyerɛnne adum, kanea nnua, abɔnten so nneɛma, ne akwanside ahorow a ɛda ɔkwan so nsu, mfutuma, nkyene, ne nsiesie so nkɛntɛnso.
- Mfasoɔ ne tumi nhyehyɛeɛ:transmission tower afã horow, nnua, cross arms, ne hardware a wɔde ahyɛ mmeae a ɛhɔ yɛ petee a ɛnyɛ nea mfaso wɔ so sɛ wɔbɛsan de paint ayɛ no daa.
- Dade a wɔayɛ no nhyiam ahorow:base plates, welded brackets, frames, ne hollow sections a edges, welds, ne drilled holes hia post-fabrication ahobanbɔ.
Wɔ dade paipu, tube, ne nneɛma a ɛwɔ tokuru ho no, sɛnea wɔayɛ no ho nsɛm a ɛkɔ akyiri no bɛyɛ nea ɛho hia titiriw. Ɛsɛ sɛ afã horow a wɔato mu no ma mframa ne zinc a wɔabɔ no tumi tu dwoodwoo. Sɛ wɔamfa mframa ne nsu ankɔ mu yiye a, nhyɛso a ɛkyere, acid a ɛbɛkɔ so atra mu, anaasɛ nea enni mũ a wɔde kata so betumi aba. Wɔ nnwuma a wɔde paipu ma ho no, .hot-dip galvanized dade paipuɛsɛ sɛ wɔsan hwɛ mu ne paipu gyinapɛn, zinc a wɔde kata so ahwehwɛde, awiei su, ɔkwan a wɔfa so kyekyere nneɛma, ne nkrataa a wɔde hwehwɛ nneɛma mu.
Design ne Fabrication Nkyerɛwde Ansa na Hot Dip Galvanizing
Hot dip galvanizing yɛ adeyɛ a wɔde hyɛ nsu mu koraa, enti ɔfã no nhyehyɛe nya coating su ne ahobammɔ so nkɛntɛnso tẽẽ. Ɔfã a wɔayɛ no yiye-a wɔde galvanized ayɛ no ma nsuo a wɔde tew ho, nsuo a ɛsen, mframa, ne zinc a wɔabɔ no kɔ mu na ɛtwetwe a ɛnkyere nsuo anaa nhyɛsoɔ.
Nneɛma a ɛho hia a wɔde yɛ nneɛma no bi ne:
- Ɛsɛ sɛ wɔma afã horow a ɛwɔ tokuru no kɛse yɛ nea ɛfatantokuru a wɔde mframa fa mu ne ntokuru a wɔde nsu gu mu.
- Nneɛma a ɛka bom ne nsonsonoe a ɛyɛ den betumi akyere nnuru a wɔde tew nneɛma ho anaa nsu a ɛwɔ mu.
- Ɛsɛ sɛ woyi weld slag, paint, ngo, ne agyiraehyɛde a emu yɛ duru fi hɔ ansa na wɔde galvanizing ayɛ.
- Nhama, ntokuru a ɛyɛ pɛpɛɛpɛ, ne nhyiam ahorow a ɛtwetwe nneɛma hia kwan ma ade a wɔde kata so no ayɛ kɛse.
- Ɛsɛ sɛ nhyiam akɛse no hyɛ galvanizing kettle no mu anaasɛ wɔyɛ no sɛnea ɛbɛyɛ a wɔde bɛkɔ fam nkakrankakra.
- Welding anaa grinding bere a wɔde galvanizing awie no yi mpɔtam hɔ ahobammɔ fi hɔ na ɛsɛ sɛ wosiesie.
- Ɛsɛ sɛ wɔhwɛ seal-welded assemblies no mu yiye na wɔakwati mframa a ɛbɛkyere anaasɛ asiane a ɛbɛpae bere a wɔde regu nsu mu no.
Wɔ nnua a ɛyɛ den, paipu supports, ne tubular structures ho no, ɛsɛ sɛ wɔsan hwɛ galvanizing design ansa na wɔayɛ. Mframa a wɔde fa mu ne nsu a wɔde fa mu yiye nyɛ ahosiesie ho nsɛm a ɛkɔ akyiri; wɔka sɛnea coating kɔ so, adwumayɛfo ahobammɔ, dimensional fit, ne gye a wogye tom awiei koraa.
Mfaso ne Anohyeto ahorow a ɛwɔ Hot Dip Galvanizing so
Wɔbu hot dip galvanizing sɛ ɛsom bo efisɛ ɛma wonya nhyehyɛe a ɛyɛ den, wotumi hwɛ mu, na ɛnyɛ den-nsiesie a ɛbɔ ho ban fi nsɛe ho. Ne dwumadie firi zinc-dadeɛ afrafra nhyehyɛeɛ ne afɔrebɔ suban a zinc yɛ.
Mfaso a ɛwɔ so
- Metallurgically bonded coating a ɛyɛ den a ɛbata ho
- Zinc-dade a wɔde afrafra a ɛko tia sɛnea wɔde di dwuma ne nea ɛbɔ
- Barrier ahobammɔ ne cathodic ahobammɔ
- Kataso pa wɔ anoano, ntwea so, welds, ne ntokuru so bere a wɔayɛ no awie no
- Ɛfata ma abɔnten ne mfiridwuma mu dade afã horow pii
- Nsiesie ahwehwɛde a ɛba fam sɛ wɔde toto paint-nkwa nhyehyɛe pii ho a
- Gyinapɛn ahorow a wogye tom a ɛfa sɛnea wɔde kata so no mu duru, nsiesie, ne nhwehwɛmu ho
Anohyeto ahorow
- Ɔfã kɛse yɛ anohyeto esiane kettle nsusuwii ne tumi a wɔde di dwuma nti.
- Dade mu nnuru betumi aka kɔla a wɔde kata so, ne kɛse, ne sɛnea ɛwɔ soro no.
- Close-tolerance components betumi ahia machining anaa thread cleaning akyi galvanizing.
- Afã a wɔato mu no hwehwɛ sɛ wɔma mframa ne nsu a ɛkɔ mu yiye.
- Sɛ wɔde afã horow a wɔde galvanized ayɛ foforo no sie nsu a mframa nkɔ mu a, nkannare fitaa betumi aba.
- Welding, twa, anaa grinding bere a wɔde galvanizing awie no yi ahobammɔ a wɔde akata so no fi hɔ wɔ mpɔtam hɔ.
Nsɛm a wɔafa aka a wontua hwee
FAQ
01.So hot-dip galvanized coating a ɛyɛ den no ye bere nyinaa?
02.Dɛn nti na ɛtɔ mmere bi a dade a wɔde galvanized ayɛ a ɛyɛ hyew-dip no yɛ te sɛ nea ɛyɛ fitaa a ɛyɛ dull?
03.Can hot-dip galvanized dade rust bere a wɔde sie anaasɛ wɔde rekɔ?
04.Dɛn na ɛsɛ sɛ wɔhwɛ ansa na wɔakyerɛ hot dip galvanizing?
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