Mabotolo a DACROMET

2026-11-07

1. Mawu Oyamba

Mu uinjiniya wamakono, zolumikizira zomata zimayenera kukana zolemetsa zamakina komanso kuwonongeka kwa chilengedwe. Ma electro-galvanizing achikhalidwe komanso dip dip galvanizing amateteza dzimbiri koma amavutika ndi hydrogen embrittlement m'maboti amphamvu kwambiri komanso kusokoneza kwa ulusi wolondola. Kupaka kwa Dacromet, dongosolo la zinc-aluminium flake lomwe linapangidwa m'ma 1970, limagonjetsa izi. Imapereka kukana kwa dzimbiri, imachotsa chiwopsezo cha hydrogen embrittlement, imasunga miyeso ya ulusi, komanso imapereka kukhazikika kwa kutentha kwambiri mpaka 300 ° C. Maboti a Dacromet tsopano amatchulidwa kwambiri m'magalimoto, zomangamanga, mphamvu zamphepo, njanji, ndi mafakitale apanyanja.

2. Kodi Dacromet Coating ndi chiyani?

Dacromet ndi zokutira zopanda electrolytic, zochokera m'madzi za zinc-flake zomwe zimakhala ndi zinc-scale zinc ndi aluminium flakes mu inorganic binder. Pambuyo pakugwiritsa ntchito ndi kuchiritsa, ma flakes ophatikizika amapanga chotchinga chambiri chosanjikiza chomwe chimapereka chitetezo chotchinga komanso chitetezo cha cathodic ku gawo lachitsulo.

Makhalidwe ofunika:

Makulidwe a kanema: nthawi zambiri 5-12 μm (yoonda kwambiri kuposa galvanizing ya dip yotentha)
Maonekedwe: yunifolomu siliva-imvi zitsulo kumaliza
Palibe chiwopsezo cha hydrogen embrittlement (palibe pickling acid kapena electrolysis)
Kukana kwa dzimbiri: nthawi zambiri>maola 1,000 utsi wamchere mpaka dzimbiri lofiira (ASTM B117)
Kutentha kwapamwamba kwambiri mpaka 300 ° C mosalekeza ntchito

Chophimbacho chimagwiritsidwa ntchito ndi dip-spin (yofala pa zomangira zambiri), kupopera, kapena dip-drain, kenako kuchiritsidwa ndi thermally pa ~ 300 ° C. Ma topcoat osasankha amawonjezera kukana kwa dzimbiri ndikuwongolera kugundana kwamphamvu kwamphamvu kwa torque.

3. Njira Yopaka Mwachidule

Kachitidwe ka ma bolts imakhala ndi magawo anayi:

1.Kukonzekera Pamwamba: Kutsitsa kwa alkaline kutsatiridwa ndi kuyeretsa makina ngati kuli kofunikira. Kutolera kwa asidi kumapewa kupewa kuyamwa kwa haidrojeni.

2. Coating Application: Mbali zoviikidwa mu amadzimadzi zinki-zotayidwa flake slurry (kuviika-kuzungulira kwa mabawuti ang'onoang'ono) kapena sprayed; owonjezera amachotsedwa ndi centrifugation kwa makulidwe yunifolomu.

3. Kuchiritsa: Kuwotcha pafupifupi 300-320 °C kumasintha chomangira ndikuphatikiza zitsulo zachitsulo kukhala zokutira zomangika.

4.Posankha Topcoat / Sealer: Chosindikizira chopyapyala chimapangitsa kuti mafuta aziwoneka bwino, osagwira ntchito ndi mankhwala, komanso amakulitsa ntchito yopopera mchere.

Chifukwa ndondomekoyi si electrolytic ndi wopanda asidi pickling, mabawuti mkulu-mphamvu (Giredi 8.8, 10.9, 12.9 ndi ASTM A490) TACHIMATA popanda mkati hydrogen embrittlement chiopsezo - kwambiri chitetezo mwayi pa electroplating chikhalidwe.

4. Ubwino waukulu wa Dacromet Bolts

4.1 Superior Corrosion & Anti-Rust Performance

Filimu yopyapyala ya Dacromet (6-10 μm) imapirira nthawi zonse kwa maola 1,000-2,000 osalowererapo pakuyezetsa mchere wa mchere musanawonekere dzimbiri lofiira - nthawi 7-10 kuposa momwe zimakhalira ndi electro-galvanizing. Mapangidwe a flake ambiri amapereka chitetezo chotchinga pomwe zinc flakes amapereka chitetezo cha cathodic chansembe. Chromate passivation imachedwetsanso dzimbiri ndipo imapereka kudzichiritsa pang'ono pazikala zazing'ono.

4.2 Palibe Hydrogen Embrittlement

Maboti amphamvu kwambiri amatha kutengeka kwambiri ndi hydrogen embrittlement kuchokera ku pickling ya asidi ndi electroplating, zomwe zingayambitse kuchedwa kusweka. Dacromet imathetsa ngoziyi kwathunthu. Chifukwa chake ndimakonda zomangira zolimba kwambiri zamainjini zamagalimoto, chassis, zitsulo zamapangidwe, komanso mabwalo okhudzana ndi chitetezo.

4.3 Dimensional Zolondola & Thread Fit

Ndi makulidwe okutira a 5-12 μm okha, Dacromet sasintha kwambiri ulusi wa geometry. Mtedza wamba ukhoza kugwiritsidwa ntchito popanda kugogoda kwambiri. Mosiyana ndi izi, galvanizing yotentha (40-80 μm) nthawi zambiri imafuna mtedza wapadera. Chophimba chopyapyala ichi ndichabwino pamabawuti olondola komanso zomangira zowoneka bwino.

4.4 Kukanika Kwambiri Kutentha & Kuthamanga Kwambiri

Dacromet imakhalabe yokhazikika mpaka 300 ° C mosalekeza, kupitirira malire a electroplating (~ 120 ° C) kapena galvanizing otentha (~ 200 ° C). Ndi ma topcoat oyenerera, mikangano imatha kuwongoleredwa (nthawi zambiri μ = 0.10-0.18), kuwonetsetsa kuti chiwongola dzanja chokhazikika komanso machitidwe olimba ambiri.

5. Kufananiza Magwiridwe

Gome ili m'munsili likufotokozera mwachidule kusiyana kwakukulu pakati pa Dacromet ndi njira zochiritsira zachikhalidwe zamaboti:

Performance Metric	Dacromet	Electro-Galvanizing	Hot Dip Galvanizing
Kunenepa Kwambiri	5-12 m	5-15 m	40-80+ μm
Kupopera mchere (kufiira dzimbiri)	1,000–2,000+ h	100-300 h	500-1,000 h
H₂ Chiwopsezo cha Embrittlement	Palibe	Wapamwamba (akufunika kuphika)	Wapakati
Max Continuous Temp.	≈ 300 °C	≈ 100–120 °C	≈ 200 °C
Kusokoneza Ulusi	Zochepa / Palibe	Zochepa	Zofunika
Maboti Amphamvu Kwambiri	Zabwino kwambiri (8.8-12.9)	Zochepa / Zowopsa	Zochepa
Maonekedwe	Uniform silver-gray	Bright kapena blue zinc	Wakuda, wotuwa wotuwa

Tebulo 1: Kufananiza kwamankhwala omwe amagwiritsidwa ntchito pa bolt wamba

Dacromet imapereka kuphatikizika kwapadera kwa filimu yopyapyala, kukana kwa dzimbiri, chiwopsezo cha zero hydrogen embrittlement, komanso kutentha kwambiri, zomwe zimapangitsa kuti zikhale zokondedwa pazogwiritsa ntchito zambiri zomangirira.

6. Ntchito Zofananira

Maboti okutidwa ndi Dacromet amagwiritsidwa ntchito kwambiri pomwe chitetezo cha dzimbiri, chitetezo, ndi kulondola kwenikweni ndikofunikira:

Magalimoto & Mayendedwe: Injini, chassis, kuyimitsidwa ndi zomangira thupi (makamaka Giredi 10.9 / 12.9).
Mphamvu za Mphepo & Mphamvu: Maboti a Tower, nacelle ndi maziko m'mphepete mwa nyanja kapena m'mafakitale.
Sitimayi & Zomangamanga: Tsatani zomangira, milatho ndi zolumikizira zomwe zimafuna moyo wautali.
Zomangamanga ndi Zitsulo: Zomangamanga zolimba kwambiri pomwe malata ndi osafunika.
Marine & Offshore: Zigawo zomwe zimawonetsedwa ndi kutsitsi mchere komanso chinyezi chambiri (nthawi zambiri zokhala ndi ma topcoat owonjezera).
Zida Zaulimi & Zolemera: Makina omwe amagwira ntchito m'nthaka yowononga kapena malo akunja.

7. Miyezo Yoyenera & Malangizo Osankha

Dacromet ndi zokutira za zinc-flake zofananira zimaphimbidwa ndi miyezo yapadziko lonse lapansi kuphatikiza ISO 10683 (Zomangira - zokutira za zinc flake zosagwiritsa ntchito magetsi), EN 13858, ASTM F1136/F1136M, ndi njira zopopera mchere ASTM B117 / ISO 9227. Kusunganso zofunikira zambiri zamagalimoto a OEM.

Potchula ma bolts a Dacromet, mainjiniya ayenera kuganizira:

Gulu Lamphamvu: Zabwino kwa 8.8 ndi kupitilira apo; nthawi zambiri amavomerezedwa pazigawo 10.9 / 12.9 zofunika kwambiri pachitetezo.
Kalasi ya Corrosion: Sankhani kulemera kwa zokutira, kuchuluka kwa malaya ndi topcoat molingana ndi kufunikira kwa utsi wa mchere kapena kuyesa kwa cyclic.
Friction Coefficient: Tchulani topcoat yoyendetsedwa ndi lubricity ngati chiwongola dzanja chokhazikika ndichofunikira.
Chilengedwe: Zabwino kwambiri pamafakitale, magalimoto ndi malo ambiri akunja; kuunikira machitidwe okhuthala kuti awonetseke kwambiri panyanja.
Mtengo vs. Life-cycle: Mtengo wokwera wa unit kuposa plating wa zinc nthawi zambiri umachepetsedwa ndi moyo wautali wautumiki komanso kusamalidwa kochepa.

8. Mapeto

Maboti a Dacromet amayimira njira yokhwima, yogwira ntchito kwambiri poteteza dzimbiri la zomangira. Chophimba chopyapyala cha zinc-aluminiyamu cha flake chimapereka kukana kwa utsi wamchere kuposa momwe amapangira ma electro-galvanizing, amachotsa chiwopsezo cha hydrogen embrittlement chomwe chimawopseza ma bolts amphamvu kwambiri, chimasunga miyeso yolondola ya ulusi, ndikupirira kutentha kokwera mpaka 300 ° C.

Kwa mainjiniya ndi ogula omwe akufuna ntchito yodalirika yolimbana ndi dzimbiri komanso anti-corrosion pamagalimoto, kapangidwe kake, mphamvu ndi mafakitale, ma bolts okhala ndi Dacromet amapereka kutsimikizika kokhazikika, chitetezo ndi kukhulupirika kwake. Zikafotokozedwa molondola - kufananiza giredi yakuphimba, topcoat ndi mikangano pamalo ogwirira ntchito - zimathandizira kuti pakhale moyo wautali, kuchepetsa kukonza ndikuwongolera kudalirika kwadongosolo lonse. Monga zofuna zamphamvu-zapamwamba, zomangira zokhalitsa zikupitiriza kukula, zokutira za zinc-flake monga Dacromet zimakhalabe mwala wapangodya wa zomangamanga zamakono zamakono.

Zam'mbuyo. Kenako.

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