Ma Dacromet Hex Bolts Amatsogolera Mafunde Otsatira a Anti-Corrosion Fastening 

Mosiyana ndi zinki zama electroplated, njira ya Dacromet simayambitsa haidrojeni mu gawo lapansi. Izi zimachotsa chiwopsezo cha hydrogen embrittlement-ubwino wofunikira pakuphimba ma bolt amphamvu kwambiri a hex a giredi 8.8, 10.9, ndi 12.9. Zotsatira zake ndi a bawuti ya hex yoletsa dzimbiri zomwe zimasunga umphumphu wathunthu wamakina pomwe zimapereka kukana kwa dzimbiri kuposa zomaliza wamba.

Chifukwa chiyani ma Hex Bolts Amapindula Kwambiri kuchokera ku Dacromet

Maboti a hex-makamaka ma bawuti olemera a hex - amafotokozedwa kwambiri m'milatho, nsanja zopangira mphamvu zamphepo, makina olemera, ndi ma chassis amagalimoto. Mapulogalamuwa amafunikira zomangira zomwe zimaphatikiza machitidwe olimba a torque ndi zaka zambiri anti-corrosion moyo. Dacromet imakwaniritsa zofunikira zonse ziwiri:

• Kuphimba yunifolomupa ulusi wovuta wa geometry popanda kumanga kogwirizana ndi kutentha-kuviika galvanizing, kusunga dimensional kulondola ndi kukwanira kwa ulusi.
• Kuwongoleredwa kwa coefficient ya kukangana(kawirikawiri μ = 0.12–0.18 yokhala ndi topcoat), kupangitsa kuti pakhale kutsekeka kosasinthasintha komanso kumangirira kambiri.
• Palibe chiopsezo cha hydrogen embrittlement, kupanga Dacromet kukhala yokondedwa odana ndi dzimbirikumaliza kwa mabawuti apamwamba kwambiri a hex omwe amagwiritsidwa ntchito pamalumikizidwe ovuta kwambiri.
• Kutentha kwapakati mpaka 300 ° C, kupitirira kwambiri malire a electroplated zinc.

Kuchita Zowonongeka: Dacromet vs. Zovala Zachikhalidwe

Kuyesa kwa labotale paokha kumawonetsa izi Maboti a hex okhala ndi Dacromet Zimaposa zonse zomangira za electroplated ndi zomata zoviyitsa muzitsulo zosalowerera zamchere (ASTM B117 / ISO 9227) ndi mayeso a cyclic corrosion. Kuyerekeza kotsatiraku kumapereka chidule cha zotsatira zofananira zamakina omatira:

Table 1. Kufananiza kwa zokutira zazikulu zotsutsana ndi dzimbiri za hex bolts (zofanana ndi za labotale).

Mu kafukufuku wina wodziwika bwino wa ma bolts olimba kwambiri a ASTM A490, zida zokutidwa ndi Dacromet zidawonetsa. ziro red dzimbiri pambuyo 1,000 maola mosalekeza mchere utsi kukhudzana, pamene umakaniko kanasonkhezereka mabawuti anasonyeza oposa 85% wofiira dzimbiri pa malo ofunika. Ngakhale pambuyo pa maola 5,000, zitsanzo za Dacromet zinangowonetsa dzimbiri lofiira pafupifupi 6% - lopambana kwambiri kuposa lamalati otentha omwe amafika pafupi ndi chiwonongeko chonse.

Sayansi Pambuyo pa Chitetezo Chachikulu Chotsutsana ndi Dzimbiri

Chapadera anti-corrosion Kuchita kwa Dacromet kumachokera ku njira zitatu zowonjezera:

1. Chitetezo chotchinga- Zinc ndi aluminium flakes zopindika zimapanga chishango cholimba, chosanjikiza chambiri chomwe chimalepheretsa chinyezi komanso ion chloride kulowa.
2. Chitetezo cha nsembe (cathodic).- Zinc flakes amakonda kuwononga, kuteteza chitsulo chamkati ngakhale zokutira zitawonongeka kwanuko.
3. Passivation / kudzichiritsa- Zosakaniza za Chromium-oxide mkati mwa binder zimapanga filimu yokhazikika yokhazikika yomwe imachepetsanso kuwonongeka kwa dzimbiri.

Mawonekedwe a Msika ndi Zotsatira Zamakampani

Pamene ndalama zapadziko lonse lapansi zikuchulukirachulukira ndipo nsanja zamagalimoto zimasamukira kuzitsulo zolimba kwambiri, kufunikira kodalirika. anti-corrosion ndi zosachita dzimbiri ma fastener solutions akuchulukirachulukira. Owona zamakampani amawona njira zingapo zolimbikitsira:

• Specification kukula- Miyezo yowonjezereka ya uinjiniya (kuphatikiza zosintha zokhudzana ndi mabawuti a ASTM F3125) tsopano izindikira bwino makina a zinc-flake monga Dacromet ngati njira zovomerezeka m'malo mwa zokometsera zachikhalidwe zogwiritsa ntchito mwamphamvu kwambiri.
• Malingaliro okhazikika- Njira zopangira madzi za Dacromet zimapanga zinyalala zochepa zowopsa kuposa mizere yambiri ya electroplating, ikugwirizana ndi kulimbitsa malamulo achilengedwe.
• Ndalama zonse za umwini- Ngakhale mtengo wa unit ukhoza kukhala wokwera kuposa plating ya zinki, moyo wotalikirapo wautumiki ndikuchepetsa kukonza Dacromet hex bolts nthawi zambiri zimabweretsa zotsika mtengo zamoyo zonse m'malo owononga.

Malangizo Othandiza kwa Otanthauzira

Posankha Maboti a hex okhala ndi Dacromet, mainjiniya atsimikizire giredi yakutchingira (mwachitsanzo, Sitandade A kapena B malinga ndi kulemera kwa zokutira), kutsimikizira kuti mafuta amtundu uliwonse wa coat coat amagwirizana ndi kugwirizana kwamphamvu kwa torque, ndikuwonetsetsa kuti mabawuti ndi mtedza/machacha ofananira alandila zomaliza zofananira. Kusungidwa koyenera ndi kusamalira kumakhalabe kofunika: pamene zokutira ndizokwera kwambiri odana ndi dzimbiri, kuwonongeka kwa makina musanayambe kuyika kungachepetse chitetezo.

Mapeto

Ukadaulo wa Dacromet wakhwima kuchokera pamagalimoto apadera kupita kumalo odziwika bwino anti-corrosion yankho kwa mkulu-ntchito hex mabawuti. Kuphatikizika kwake kwapadera kwa filimu yopyapyala, kusakhalapo kwa hydrogen embrittlement, kutentha kokwera, komanso kutsutsidwa kwa maola masauzande ambiri amchere kumayiyika ngati chisankho chotsogola kulikonse komwe kwa nthawi yayitali. zosachita dzimbiri kudalirika sikungakambirane.

Monga eni nyumba, opanga minda yamphepo, ndi OEM zamagalimoto akupitiliza kuyika patsogolo kukhazikika komanso kuchepetsa kukonza, Dacromet hex bolts akuyembekezeka kutenga gawo lomwe likukulirakulira pamsika wa premium fastener-kutumiza odana ndi dzimbiri magwiridwe antchito omwe mainjiniya amakono amafunikira.