Dacromet Flat Washers: Chidule Chachidule 

1. Mawu Oyamba

Ma washers a Flat ndi zinthu zofunika kwambiri pamakina omangirira makina. Ma disks opyapyala awa okhala ndi dzenje lapakati amagawa katundu wa bawuti kapena wononga, amateteza malo olumikizana kuti asawonongeke, ndikuwongolera kudalirika kwa kulumikizanako. M'malo ochita dzimbiri, monga omwe ali pachinyontho, mchere wa mumsewu, mankhwala, kapena kutentha kwambiri, makina ochapira zitsulo osayeretsedwa kapena okutidwa ndi zinki nthawi zambiri amawononga nthawi yake isanakwane, zomwe zimapangitsa kuchepa kwa mphamvu ya clamping, kulephera kwamagulu, kapena kukonza kodula.

Pofuna kuthana ndi vutoli, chithandizo chapamwamba chapamwamba chapangidwa. Zina mwa zothandiza kwambiri ndi Kupaka kwa Dacromet, zinc-aluminiyamu flake system yomwe imagwiritsidwa ntchito kwambiri pazitsulo zopyapyala zamagalimoto, zomanga, zam'madzi, ndi mafakitale. Nkhaniyi ikuwonetsa ma washers a Dacromet flat, kufotokoza ukadaulo wokutira, zinthu zazikulu, miyeso, maubwino, ntchito, ndi kufananiza ndi zomaliza zina.

2. Kodi Dacromet Coating ndi chiyani?

Dacromet (DACROMET®) ndi chopaka chopanda electrolytic, chopangidwa ndi madzi chopangidwa ndi zinc ndi ma aluminium flakes omwazika mu chromate binder. Kumayambiriro kwa zaka za m'ma 1970 pofuna kuthana ndi dzimbiri lamchere wamsewu pamagalimoto, umagwiritsidwa ntchito ndi dip-spin, spray, kapena dip-drain pambuyo pochotsa mchere wa alkaline ndikuyeretsa makina (palibe pickling ya asidi yomwe imagwiritsidwa ntchito). Chophimbacho chimachiritsidwa pafupifupi 300 ° C, kutulutsa chowonda (kawirikawiri 5-15 μm), filimu yofananira yachitsulo yasiliva-gray yomwe imamatira mwamphamvu ku gawo lapansi lachitsulo.

Njira yake yodzitetezera imagwira ntchito m'njira zitatu zowonjezera:

1. Chitetezo chotchinga - Zinc ndi aluminium flakes zopindika zimapanga chotchinga chowundana ndi chinyezi, mpweya, ndi zinthu zowononga.
2. Chitetezo cha Cathodic (nsembe). - zinc corrodes makamaka, kuteteza chitsulo chapansi ngakhale zokutira zitawonongeka pang'ono.
3. Passivation - Zopangira za chromium zimapanga mafilimu okhazikika a oxide omwe amachepetsa dzimbiri ndikuthandizira kusindikiza zolakwika zazing'ono.

3. Zinthu Zofunika Kwambiri za Dacromet Flat Washers

3.1 Kukaniza Kwambiri kwa Corrosion

Poyesa kupopera mchere wosalowerera ndale (ASTM B117 / ISO 9227), zokutira za Dacromet nthawi zambiri zimakwaniritsa maola 500-1,000+ popanda dzimbiri lofiira-kawirikawiri nthawi 5-10 kuposa electroplating wamba ya zinc ya makulidwe ofanana. Zolemera zokutira zokulirapo (zagulu la B kapena makulidwe apamwamba) zimatha kupitilira maola 1,000, kuthandiza moyo wautumiki wazaka 5-15 kapena kuposerapo m'malo ovuta kwambiri akunja kapena akunja.

3.2 Kulimbana ndi Kutentha Kwambiri

Chophimbacho chimasunga kukhulupirika kwake komanso chitetezo mpaka pafupifupi 300 ° C (572 ° F). Izi zimapangitsa Dacromet mawotchi ophwanyidwa oyenera zigawo zomwe zili pafupi ndi injini, makina otulutsa mpweya, ma braking, ndi zina zotentha zomwe zinc plating wamba zimatha kufewetsa, kusenda, kapena kutaya kukana dzimbiri.

3.3 Palibe Kuwonongeka kwa Hydrogen

Chifukwa njirayi si electrolytic ndipo amapewa pickling asidi, Dacromet imayamba palibe chiopsezo cha hydrogen embrittlement. Uwu ndi mwayi wotsimikizika kwa ochapira amphamvu kwambiri (kuuma kalasi 200 HV, 300 HV ndi kupitilira apo) komanso kuti agwiritse ntchito limodzi ndi mabawuti olimba kwambiri (Giredi 10.9 ndi kupitilira apo), pomwe kusweka kopangidwa ndi haidrojeni ndikodetsa nkhawa kwambiri ndi kumaliza kwamtundu wa electroplated.

3.4 Woonda, Mafilimu Ofanana ndi Mapindu Owonjezera

Ndi makulidwe amtundu wowuma wa 5-12 μm okha, zokutira sizisintha kwambiri makulidwe ofunikira kapena kuchotsedwa kwa ulusi, kusungitsa kukwanira bwino ndikugwira ntchito. Zopindulitsa zina zimaphatikizapo kumamatira mwamphamvu ku gawo lapansi, kupendekeka kwabwino, kugundana kolamulirika (makamaka pamene topcoat yothira mafuta itayikidwa), komanso kuyanjana kwa bimetallic ndi zida za aluminiyamu.

4. Miyezo, Zida, ndi Mafotokozedwe

Makina ochapira a Dacromet amapangidwa motsatira miyezo yodziwika bwino yapadziko lonse lapansi, kuphatikiza DIN 125, ISO 7089, DIN 9021, ndi ANSI/ASME B18.22.1. Zida zoyambira zimakhala ndi zitsulo za carbon zomwe zimaperekedwa mumagulu olimba monga 100 HV, 140 HV, 200 HV, kapena 300 HV; mitundu yachitsulo chosapanga dzimbiri imapezekanso pazinthu zapadera. Kukula kwake kumasiyanasiyana kuchokera kumamita ang'onoang'ono a metric (M1.6 / Φ1.7 mm) mpaka kukula kwakukulu (M160 / Φ165 mm ndi kupitirira), kuphimba onse ochapira wamba ndi akulu akunja (fender). Magiredi okutirira amakhala a Giredi A (pafupifupi 24 g/m²) kapena Gulu B (pafupifupi 36 g/m²), omwe nthawi zambiri amaperekedwa ndi malaya apamwamba omwe amapititsa patsogolo kuyanika kapena dzimbiri. Otsatsa odziwika bwino amapereka malipoti a mayeso opopera mchere, miyeso ya makulidwe, ndi ziphaso zakuthupi.

5. Ubwino pa Zopaka Zovomerezeka

• Moyo wowonjezera wautumiki - Kuteteza kwa dzimbiri kwautali kumachepetsa kwambiri nthawi yokonza komanso ndalama zosinthira.
• Otetezeka kwa zomangira zamphamvu kwambiri - kusowa kwathunthu kwa chiwopsezo cha hydrogen embrittlement.
• Kulondola kwenikweni - filimu yopyapyala imasunga kulolerana komanso kuchitapo kanthu koyenera kwa ulusi.
• Kukhazikika kwamafuta - magwiridwe antchito odalirika m'malo otentha kwambiri.
• Mtengo wabwino wa moyo - ngakhale mtengo woyambira wa unit ndi wokwera kuposa plating ya zinki, moyo wautali wautumiki ndi nthawi yocheperako nthawi zambiri zimabweretsa mtengo wotsikirapo wa umwini.

6. Ntchito Zofananira

Zagalimoto: Chassis, kuyimitsidwa, pansi, utsi, ndi zomangira za injini zomwe zimawululidwa ndi mchere wamsewu ndi chinyezi. Ma OEM ambiri ndi ogulitsa Tier-1 amafunikira makamaka zokutira zinc-flake monga Dacromet pazochapira zovuta komanso zomangira.

Zomanga & Zomangamanga: Zolumikizana ndi zitsulo zomanga, milatho, tunnel, nsanja zakunyanja, scaffolding, mipanda, ndi zida zomanga zakunja zomwe ziyenera kupirira kuwonekera kwanthawi yayitali.

Magawo ena: Zida zam'madzi ndi zam'mphepete mwa nyanja, makina aulimi ndi zomangamanga, njira zanjanji ndi zoyendera, nsanja zopangira mphamvu zamphepo ndi zida zapamadzi, zinthu zoyera ndi zida zamagetsi, komanso misonkhano yayikulu yamafakitale yomwe imagwira ntchito m'malo owononga kapena a chinyezi chambiri.

7. Kufananiza ndi Zophimba Zina

Zinc electroplating ndi yotsika mtengo komanso imapezeka kwambiri, komabe imapereka kukana kwa kupopera mchere pang'ono (nthawi zambiri maola 72-200) ndipo imakhala ndi chiopsezo cha hydrogen-embrittlement pazigawo zamphamvu kwambiri.

Kutentha-kuviika galvanizing kumapereka chitetezo chabwino kwambiri cha dzimbiri komanso machitidwe odzipereka, koma kuyanika kokhuthala kumatha kusokoneza ulusi wokwanira komanso kulondola kwa mawonekedwe, kupangitsa kuti ikhale yocheperako bwino kapena ma washer ang'onoang'ono.

Machitidwe ena a zinc-flake (mwachitsanzo Geomt®) imapereka magwiridwe antchito m'kalasi wamba monga Dacromet. Kusankha komaliza nthawi zambiri kumadalira mafotokozedwe a OEM, zosankha za topcoat zomwe zilipo, ndi maunyolo operekera zigawo. Ponseponse, Dacromet imapereka chiwongolero chabwino cha makulidwe a kanema woonda, kukana kwa dzimbiri, kukhazikika kwamafuta, komanso kumasuka ku hydrogen embrittlement.

8. Mapeto

Dacromet flat washers amaphatikiza zopindulitsa zamakina ochapira wamba-kugawa katundu ndi chitetezo cha pamwamba-ndi zokutira zapamwamba za zinc-aluminium flake zomwe zimapereka kukana kwa dzimbiri, kutentha kwambiri, komanso chitetezo champhamvu kwambiri. Kanema wawo woonda, wofanana, mtundu wamagalimoto otsimikizika, komanso moyo wautali wautumiki zimawapangitsa kukhala chisankho chomwe amakonda m'magawo onse amagalimoto, zomangamanga, zam'madzi, komanso mafakitale ambiri.

Potchula zochapira izi, chidwi chiyenera kuperekedwa ku kalasi yolimba, muyeso wowoneka bwino (DIN, ISO, kapena ANSI), kulemera kwa zokutira kapena giredi, ndikufunika kulikonse kwamalaya opaka mafuta. Kuyanjana ndi opanga omwe angapereke deta yoyesera mchere ndi ziphaso zakuthupi zimathandiza kuonetsetsa kuti ntchitoyo ikuyenda bwino. Mu ntchito zomwe dzimbiri, kutentha, kapena mphamvu zambiri ndizofunikira kwambiri, ma washers okhala ndi Dacromet amakhalabe njira yotsimikiziridwa komanso yotsika mtengo.

- Mapeto a Nkhani -