O ye mun ye min bɛ se ka kɛ sababu ye ka sprocket galon?

1. Koorilenw lakanani fɛɛrɛw (Dual Barrier + Electrochimique Protection) .

• Farikolo yɔrɔw danfara: zinki dense (a ka c’a la 5–120 μm, ka kɛɲɛ ni a kɛcogo ye) bɛ sprocket ka nɛgɛmafɛn fara ɲɔgɔn kan pewu ka bɔ ɔkisizɛni na, ji la, ani gazi sɔgɔlenw na (misali la, o la ₂, Cl⁻), ka nɛgɛmafɛnw balili bali min bɛ kɛ sababu ye ka nɔgɔ bɔ. Hali zinki layɛrɛ misɛnniw tɛ se ka wuli ka tɛmɛ nɛgɛ kan, o bɛ nɔgɔya daminɛ.

• saraka anode nɔ: zinki (Electrode standard potentiel −0.76 V) ye elekitoronegatif ye ka tɛmɛ nɛgɛ kan (−0,44 V). Ni zinki layɛrɛ tiɲɛna sigida la (misali la, sɔgɔsɔgɔninjɛ, da sɛgɛn), zinki bɛ kɛ i n’a fɔ anɔdi mikro-galvanik selilɛri kɔnɔ, oksidan ka fisa (zn2⁺ ka kɛ) walasa ka nɛgɛ katodi tanga sɔgɔli ma—o lakanani bɛ to sen na fo zinki layi ka to ka dun.

• Tiɲɛni misɛnniw yɛrɛ kɛnɛyali: zinki sɔgɔlifɛnw (misali la, ZnO, Zn(OH)2, Basic zinc carbonate) bɛ kɛ filimu ye min tɛ foyi ɲɛ nka a bɛ nɔrɔ a la min bɛ faraw walima pinholes misɛnniw datugu zinki layɛrɛ la, o bɛ kɛ sababu ye ka fɛn nɔgɔlenw doncogo ɲɛ ka taa a fɛ.

• Surface Defect Remediation: Galvanizing bɛ micro-scratches, buruw, ani baarakɛminɛnw taamasiyɛnw bɔ masinw na, ka nucleation nucléation potentiels (nukilila yɔrɔw) bɔ yen ani ka degunw hakɛ dɔgɔya ni fiɲɛw ye.

2. Taabolo kɛrɛnkɛrɛnnenw lakanani nɔw & u bonya nɔfɛ .

• A ka bon ni a ka baara ye: Layɛrɛ minnu ka bon (misali la, hot-dip) olu bɛ baarakɛ waati janya sigida gɛlɛnw na; Electro-galvanisé layers finmanw bɛ bɛn so kɔnɔ/nɔgɔya cogoya ma, yɔrɔ minnu na tiɲɛni nafa ka bon. Passivation (passivation) nafa ka bon kosɛbɛ sprockets électro-galvanisés (sɔgɔsɔgɔninw) la walasa ka nɔgɔ finman (zinc hydroxyde carbonate) tanga nɛnɛba ma.

3. Lakanali baara filananw (ka tɛmɛ resistance corrosion kan) .

• wear mitigation: zinc layer (hardness ~70–100 HV) bɛ nɛgɛ ni nɛgɛ sɔgɔli dɔgɔya boli daminɛ waati la, ka ɲinw sanfɛla sɛgɛn dɔgɔya; A bɛ baara kɛ i n'a fɔ 'sacrificial wear layer' sanni sprocket ka dilan ka dafa ni cakɛda ye. KƆLƆSI: A tɛ gɛlɛya nɔnabila ye—aw bɛ baara kɛ ni nɛgɛ ye + funteni furakɛli walasa ka sɛgɛnba sɔrɔ.

• Aesthetics & Cleanability: Sinc zinc layɛrɛ kelen bɛ kɛ ka a sanfɛla fini don, ka saniya nɔgɔya, ani ka saniya saniya wajibiyalenw dafa (misali la, buruburudalaw ka fɛnw lasecogo). Layɛrɛw minnu bɛ kɛ ni passivé ye, olu bɛ se ka nɔgɔ bɔ u la, wa u marali ka nɔgɔn.

• Ladonni dɔgɔyali: Glavanized sprockets minnu bɛ kɛnɛma/humid sigidaw la minnu ka nɔgɔn, olu bɛ u yɛrɛ tanga nɔgɔ bɔli ma tuma caman (misali la, tulu seginni), ka baara dabila waati ni baara musakaw.

4. Dantigɛliw & baarakɛcogo dantigɛli .

• Furakɛcogo barikama : asidi/alkaliw minnu bɛ kɛ ni u bɛ kɛ ni fɛn caman ye, kɔgɔ fiyɛli basigilen (misali la, kɔgɔjida la baara gɛlɛn), walima ji min bɛ kɛ ji la, o bɛna zinki layɛrɛ tiɲɛ joona Aw bɛ 316 inox walima epoxy dacogo kɛ a nɔ na.

• Funteni caman baara: zinki bɛ wuli 419°C la; Aw bɛ aw yɛrɛ tanga sprockets ma >200°C sigidaw la (zinc bɛ tiɲɛ, a bɛ bɔnɛ a lakanani nafaw la).

• Sogo girinmanw : Hali ni funteni-yɔrɔw ka gɛlɛn, a sɔgɔli kojugu bɛ se ka zinki layɛrɛ kari; Aw bɛ a fara ɲɔgɔn kan ni funteni furakɛli ye (misali la, karɔti) ka kɛ sprockets ye farakurunw walima minɛnko minɛnw na.

• Precision meshing: layɛrɛ minnu bɛ kɛ ni funteni ye, olu bɛ se ka ɲinw ka muɲuli caman Changer; Aw bɛ baara kɛ ni elekitoro-galvanizing walima post-grinding ye walasa ka transmission (cikan) kɛ min bɛ se ka kɛ ni hakili ye kosɛbɛ.

5. Ka jogoɲini kɛcogo ɲuman sɔrɔ walasa ka se ka a yɛrɛ tanga .

1. Coating Uniformity: Aw bɛ a lajɛ ni yɔrɔ lakolonw/sɔgɔsɔgɔninw bɛ sɔrɔ kɔgɔ fiyɛli sɛgɛsɛgɛli la min bɛ kɛ sanga 100 kɔnɔ (ISO 9227); Nɔgɔ bilenman si man kan ka sɔrɔ substrat kan.

2. nɔrɔli : tɛmɛ sɛgɛsɛgɛli kɛlen kɔfɛ (ISO 2409): ≥ Kalanso 3nan ka ɲɛsin kuran-galvanizing ma, ≥ hakɛ 2 ka ɲɛsin hot-dip ma.

3. Dimension retention: Walasa ka sprockets précisions sɔrɔ, aw bɛ ɲinw ka profile deviation post-galvanizing kunbɛn ±0,05 mm kɔnɔ.

4. Passivation quality: passivation non chromate man kan ka nɔgɔ finman si jira sanga 48 kɔnɔ, a marali nɔgɔlen kɔfɛ (50°C, 95% RH).