Chifukwa chiyani kuwomba kwa zinki sikuvomerezeka pamaboti amphamvu kwambiri? Ndipo ndi njira ziti zomwe zingagwiritsidwe ntchito m'malo mwake? Kuteteza mabawuti ndi zomangira ku dzimbiri popanda kuwononga mphamvu kapena chitetezo.

2026-05-12

Pamene mainjiniya afotokoza mabawuti amphamvu kwambiri (Giredi 10.9, 12.9, kapena ASTM A325/A490 yofananira) pamalumikizidwe ampangidwe, amayembekeza kuchitapo kanthu konyamula katundu wambiri. Koma chitetezo cha dzimbiri chikafunikanso, chibadwa chosasinthika nthawi zambiri chimangonena zinc galvanizing. Kusankha kumeneko kungakhale koopsa.

Vuto ndi chodabwitsa chotchedwa hydrogen embrittlement - Kulephera kwakachetechete komwe kungayambitse ma bolts kusweka popanda chenjezo, masiku kapena masabata mutakhazikitsa. Izi ndi zomwe muyenera kudziwa, ndi zomwe anti-corrosion solutions ndi otetezeka kwa kuthamanga kwambiri zomangira.

Ngozi Yobisika: Hydrogen Embrittlement

Pa nthawi ya electroplating ndondomeko, atomiki wa haidrojeni amapangidwa ngati chinthu china. Pamene mabawuti okhala ndi mphamvu yolimba pamwamba pa 1,000 MPa (kuuma> 320 HV) amatenga haidrojeni iyi muzitsulo zawo zachitsulo, zotsatira zake ndi kutayika kwa ductility. Bawuti imatha kupitilira kuyang'ana kwamtundu uliwonse, torque molondola patsamba, ndiyeno kulephera mwadzidzidzi pansi pa katundu wamba.

Kulephera kochedwetsaku - ndi kupunduka kwa pulasitiki kwa zero komanso kulibe chenjezo lowoneka - kumapangitsa kuti hydrogen embrittlement ikhale imodzi mwangozi zobisika kwambiri muukadaulo wamapangidwe. Za socket head cap screws, hex mabawuti, ndi zina zapamwamba zomangira amagwiritsidwa ntchito pofunikira chitetezo (milatho, makina opangira mphepo, kuyimitsidwa kwa magalimoto), zotsatira zake zingakhale zoopsa.

Mfundo Yofunika Kwambiri: Ngakhale kuphika pambuyo pa plating (kuchotsera hydrogen embrittlement) sikungatsimikizire kuchotsedwa kwathunthu kwa haidrojeni mu Giredi 10.9 ndi 12.9 mabawuti. Zowopsa sizitsika mpaka ziro.

Kuopsa kwa Galvanizing ndi Gulu la Bolt

Gulu la Bolt	Kulimbitsa Mphamvu	IYE Chiwopsezo	Malangizo
8.8	800 MPa	Zochepa	Galvanizing chovomerezeka
10.9	1,000 MPa	Wapamwamba	Gwiritsani ntchito zokutira za zinc
12.9	1,200 MPa	Zovuta	Zinc flake kapena chitsulo chosapanga dzimbiri

Kuthira madzi otentha kumachepetsa chiopsezo cha haidrojeni kuposa electroplating, koma kusakaniza kwa asidi kumayambitsanso hydrogen. Pazogwiritsa ntchito zotetezedwa kwambiri, sichosankha chomwe chili choyenera.

Njira Zachitetezo Zotsutsana ndi Corrosion

Ndiye mumateteza bwanji mabawuti amphamvu kwambiri ndi zomangira kuchokera ku dzimbiri pamene malata achoka patebulo? Nazi njira zina zotsimikiziridwa:

Kupaka kwa Zinc Flake (Dacromet / Geomet)

Ntchito umakaniko - palibe asidi kusamba, palibe electrolysis, ziro m'badwo wa haidrojeni. Imapulumutsa maola 600-1,000+ kukana kupopera mchere. Zoyenera ma giredi 10.9 ndi 12.9 mabawuti, zomangira, ndi zomata.

Kusankha Kwabwino Kwambiri

Mechanical Zinc Plating

Cold-welds zinc particles pamwamba pa chomangira popanda magetsi. Palibe chiwopsezo cha haidrojeni, choyenera ma bolts okwera kwambiri a hex ndi mtedza.

Palibe Chiwopsezo cha Hydrogen

Zomangira Zitsulo Zosapanga dzimbiri

A316 kapena A4 (316) zitsulo zosapanga dzimbiri ndi zomangira zimapereka kukana dzimbiri kwachilengedwe. Zabwino kwambiri zam'madzi, makemikolo, ndi kunja.

Premium Solution

PTFE / Fluoropolymer Coating

Amapereka kwambiri kukana mankhwala ndi otsika kukangana. Nthawi zambiri kuphatikiza ndi nthaka pansi pa nthaka kuti zitetezeke dzimbiri pa zomangira mafakitale.

Kugwiritsa Ntchito Mwapadera

“Chophimba choyenera cha anti-corrosion chimateteza ndalama zanu. Wolakwika akhoza kuuwononga.”

- Gulu la Engineering la FUJINRUI

Kusankha Njira Yoyenera

Posankha a mankhwala odana ndi dzimbiri za inu zomangira, ganizirani izi:

Gulu la Bolt- Giredi 8.8 ndi pansi amatha kugwiritsa ntchito malata. Kwa 10.9 ndi pamwamba, nthawi zonse sankhani zinki flake kapena chitsulo chosapanga dzimbiri.
Chilengedwe- Miyendo yam'madzi ndi yamakampani imafunikira nthawi yayitali yopopera mchere. Kupaka kwa geometndi zitsulo zosapanga dzimbiri kupambana apa.
Kugwiritsa ntchito- Magalimoto, mphamvu yamphepo, ndi kulumikizana kwachitsulo kumafunikira zero hydrogen pachiwopsezo. Makina opangira plating ndi zinc flake system ndiye muyezo.
Mtengo motsutsana ndi Magwiridwe- Zovala za zinc flake (Dacromet, Geomet) zimapereka njira yabwino kwambiri yothanirana ndi dzimbiri, chitetezo cha haidrojeni, komanso mtengo wa ambiri chomangira cholemetsamapulogalamu.

Izi Zikutanthauza Chiyani pa Kugula

Kwa magulu ofufuza ndi mainjiniya a polojekiti, zotengera ndizodziwikiratu: osasintha kukhala galvanizing kwa zomangira zamphamvu kwambiri. Nthawi zonse tchulani kalasi ya bawuti ndi malo owononga, ndikugwira ntchito ndi anu wopanga chomangira kusankha njira zokutira zomwe zimachotsa chiwopsezo cha hydrogen embrittlement.

Pa FUJINRUI, timapanga anti-corrosion bolts, zomangira,ndi zomangira mwambo yokhala ndi zokutira za Dacromet, Geomet, zinki zamakina, ndi zokutira za PTFE - zogwirizana ndi ntchito yanu komanso zofunikira zachilengedwe. Gulu lililonse limayesedwa mphamvu zamakina komanso kukana kwa dzimbiri musanatumize.

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