Rahoton kan fasahar maganin saman galvanizing mai zafi - Tushen masana'antu na kariyar tsatsa ta ƙarfe na dogon lokaci
I. Ayyuka da Ƙimar Muhimmi
Ayyukan asali
- Babban hana tsatsa: kauri mai kauri daga layin zinc 60-150μm, gwajin fesa gishiri har zuwa awanni 600-1500 (sau 5-8 na fenti na yau da kullun)
- Halayen warkar da kai: Ƙirgar layin zinc ta hanyar anode na hadaya don kare substrate (kariyar lantarki)
- Kariyar injiniya: taurin layin ƙarfe na zinc-iron shine HV250, kuma juriyar karce tana da kyau kwarai da gaske
- Rayuwa mara gyarawa: Rayuwar hana lalatawa> Shekaru 20 a cikin muhallin waje (ƙa'idar ISO 1461)
Mahimman hanyoyin magance matsalar
| Maki na ciwo a masana'antu | Maganin galvanizing masu zafi |
| Hatsarin tsatsa na hasumiyar gada/watsawa | Layer ɗin zinc + Layer ɗin ƙarfe mai kariya biyu |
| Rigakafin tsatsa a kusurwoyin da ba su da tsari na sassa masu rikitarwa | 450℃cikakken rufi mai nutsewa tare da zinc na narke |
| Tsatsa mai sauri a cikin yanayi mai zafi. | Yawan amfani da layin zinc shine 1-2μ kawaim/shekara |
II. Ka'idar Aiki
Tsarin rarraba microstructural (daga substrate zuwa waje):
① δ Phase (FeZn₇, 7-12% abun cikin ƙarfe) → ② Phase ζ (FeZn₁₃, 6% abun cikin ƙarfe) → ③ η Phase (tsarin zinc mai tsabta)
(Hoto: Tsarin haɗin ƙarfe da tsarin kariya ta lantarki na Layer ɗin galvanized mai tsoma zafi)
Sinadarin zinc na ruwa tare da tsarin kariyar lantarki
III. Tsarin aikin tsari
Matakai bakwai don sarrafa tsarin aiki sosai
- Rage kitse da kuma cire mai (maganin alkaline, 70℃×10min) → wanke ruwa
- Cire tsatsa da tsatsa (15-20% hydrochloric acid, zafin ɗaki na minti 30) → wanke ruwa
- Maganin adanawa na taimako (maganin ZnCl₂+NH₄Cl, 60℃×2min)
- Zafin galvanizing mai zafi (zafin wanka na zinc 445-465℃, lokacin nutsewa minti 3-8)
- Yin jifa da zinc mai zurfi (juyawa mai sauri don cire ragowar zinc da kuma sarrafa kauri na fim)
- Sanyaya ruwa (faɗuwar zafin jiki kwatsam don hana tsagewar layin zinc)
- Dubawa da gyara mai inganci:
- Gano kauri: ma'aunin kauri na maganadisu (ISO 1461 yana buƙatar ≥85μm)
- Gwajin mannewa: Hanyar guduma ba tare da barewa ba (ASTM A123)
IV. Kwatanta da sauran tsare-tsare
| Siffofi | Zafi mai zafi | Na'urar lantarki | Fesa robobi |
| Rayuwar juriyar lalata | Shekaru 20-50 (a waje) | Shekaru 5-15 | Shekaru 8-15 |
| Daidaiton kauri na fim ɗin | Kusurwa> jirgin sama (mai kauri da kashi 20%) | Uniform amma mai sauƙin sirara a kusurwoyi | Rufewa iri ɗaya |
| Yana jure wa lalacewar injiniya | ★★★★★ (ƙarfin taurin layin ƙarfe) | ★★☆☆☆ (Layer mai laushi na zinc) | ★★★☆☆ (taurin shafi) |
| Kadarorin kare muhalli | Maganin hayakin zinc (ana buƙatar kayan aikin kare muhalli) | Ruwan shara mai ɗauke da chromium | Sifili VOC |
| farashi | ¥80-150/㎡ (gami da magani kafin a fara) | ¥20-40/㎡ | ¥25-50/㎡ |
Gwajin aikin:
Hasumiyar gonar iska ta bakin teku (mai amfani da zafi) ta shafe shekaru 18 tana aiki ba tare da tsatsa ba, yayin da aka gyara sassan ginin da aka fenti sau uku a cikin wannan lokacin
V. Jagorar Yanayi ta Aikace-aikace
● Filayen da aka fi so:
-
- ✅ Gine-gine masu nauyi a waje (hasumiyoyin wutar lantarki/tsarin ƙarfe don Gado)
- ✅ Muhalli mai lalata (tashar sinadarai/tashar teku)
- ✅ Bukatun da ba sa buƙatar kulawa don wurare (dogayen shinge masu sauri/sandunan haske)
● Yi amfani da yanayi da taka tsantsan:
-
- ❌ Sassan da suka dace daidai (canjin kauri na plating ±15%)
- ❌> Yanayin aiki na 200℃ (ƙarfe mai siffar ƙarfe da zinc)
- ❌ Kayan aikin da ake amfani da su wajen hulɗa da abinci (haɗarin ƙaura daga sinadarin zinc ion)
Kammalawa: Gilashin da aka yi amfani da shi wajen dumama ruwa ya zama wani tsari da ba za a iya maye gurbinsa ba a fannin kariyar tsatsa mai nauyi saboda tsawon rayuwarsa, da kuma yadda yake warkar da kansa, da kuma yadda yake iya daidaita muhalli sosai.
Layin galvanizing mai wayo na Mingli Metal yana tallafawa sarrafa manyan abubuwan da suka kai girman gaske (har zuwa mita 12) tare da sa ido kan abubuwan da ke cikin zinc a ainihin lokaci (daidaitaccen sarrafa abun ciki na aluminum a 0.005-0.02%), yana samar da cikakken mafita na kariyar zagayowar rayuwa don ayyukan ababen more rayuwa.
Shafi: ainihin yanayin layin samar da galvanizing mai zafi
Hoto: nutsar da kayan aiki a cikin zinc → centrifugation → tsarin sanyaya (tsarin sa ido kan zafin jiki na ruwa na zinc)
● Ƙarin Bayani na Fasaha
- Ma'aunin daidaito na ƙasa da ƙasa:
- Bukatar kauri: ISO 1461 (85μm)> ASTM A123 (78μm)
- Sabbin hanyoyin aiki:
- Rufin ƙarfe mai ɗauke da sinadarin zinc-nickel (0.8-1.3%Ni) zai iya rage tokar zinc da kashi 50%
- Inganta kariyar muhalli:
- Tsarin dawo da hazo mai guba (ƙimar dawo da HCl> 90%)
- Fasahar samar da wutar lantarki ta zafi (rage amfani da makamashi da kashi 30%)