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I-Dacromet Flange Bolts: Intshayelelo eBanzi kwi-High-Performance Anti-Corrosion Fasteners
2026-10-16
1. Isingeniso kwi-Dacromet Flange Bolts
Kwizicelo zanamhlanje zoshishino, ukuthembeka kweenkqubo zokuzila kubaluleke kakhulu. Phakathi kwezona zisombululo ziphambili ezikhoyo namhlanje zi Iibholiti zeDacromet flange. Ezi bholiti ezikhethekileyo zidibanisa iingenelo zomatshini woyilo lweflange kunye nekhethekileyo anti-umhlwa kwaye anti-rust iipropathi zeteknoloji yokugquma iDacromet.
I-flange bolt ibonisa i-washer-efana neflange edibeneyo phantsi kwentloko. Olu luyilo lusasaza umthwalo obambekayo phezu kwendawo enkulu yomhlaba, kunciphisa umngcipheko womonakalo ongaphezulu, kwaye kaninzi kuphelisa imfuno yewasha eyahlukileyo. Xa le bolt flange iphathwa ngayo Dacromet - i-non-electrolytic zinc-aluminium flake coating - iba yinto ephezulu yokusebenza ekwaziyo ukumelana neendawo ezinobungozi ezinobungozi ixesha elide.
I-Dacromet coating, eyaziwa ngokuba yi-zinc flake coating, inika ukhuseleko olubalaseleyo kwi-rust kunye ne-corrosion. Icaciswe ngokubanzi kwiibholithi zokuqina okuphezulu (iBakala 8.8, 10.9, kunye ne-12.9) ezisetyenziswa kwiimoto, kulwakhiwo, elwandle, kumandla omoya, nakusetyenziso koomatshini bemizi-mveliso apho i-zinc plating okanye ukugalela idiphu eshushu kunokusilela.
2. Yintoni i-Dacromet Coating?
Dacromet yi-inorganic, inkqubo yokwambathisa esekwe emanzini idityaniswe ikakhulu zinc kunye neeflakes zealuminiyam zixhonywe kwisibophelelo esinechromium. Ukwaleka kusetyenziswa iindlela zedip-spin, isitshizi, okanye idip-drain kwaye zinyangelwe kumaqondo obushushu aphezulu (ngokuqhelekileyo 300–320°C). Le nkqubo yenza umqobo omncinci, oxineneyo, onamanqwanqwa amaninzi (ngokuqhelekileyo i-4-8 μm ubukhulu) edibanisa iikhemikhali kunye ne-steel substrate yebholiti.
Ngokungafani ne-electroplating eqhelekileyo, inkqubo ye-Dacromet ayibandakanyi i-acid pickling okanye i-electrolysis. Ngenxa yoko, iyazisa akukho embrittlement hydrogen umngcipheko-inzuzo eqinisekileyo yeebholiti eziphezulu ekufuneka zigcine ingqibelelo yesakhiwo phantsi kokulayisha kwangaphambili kunye nokulayisha i-cyclic.
Iimpawu eziphambili zeDacromet Coating kwiiBolts
- Uxhathiso oluphezulu lokutya: Ngokuqhelekileyo idlula iiyure ezili-1,000 zovavanyo lwesitshizi setyuwa engathathi hlangothi (ASTM B117 / ISO 9227) ngaphandle komhlwa obomvu.
- Ifilimu encinci kunye neyunifomu: Kuphela i-4-8 μm ubukhulu, igcina ukunyamezela okuchanekileyo kwentambo yebholithi.
- Ukumelana nobushushu obuphezulu: Igcina umsebenzi wokukhusela ukuya kwi-300 ° C yenkonzo eqhubekayo.
- Ukuxhathisa okugqwesileyo kweekhemikhali: Ixhathisa iityuwa zendlela, ulwelo lweemoto, iiasidi ezipholileyo, kunye nemozulu yemizi-mveliso.
- Ukukhuhlana okulawulwayo: Ubudlelwane obuguquguqukayo be-torque-tension yokuqiniswa kwebholithi ethembekileyo.
- Imbonakalo yentsimbi esilivere-ngwevu: Iyunifomu, isiphelo sematte esikwapeyintwayo.
3. Izinto eziluncedo zeDacromet Flange Bolts
Iibholiti ze-Dacromet flange zibonelela ngokudityaniswa okukhethekileyo komatshini kunye nezibonelelo ezikhusela umphezulu ezenza ukuba zikhetheke ngaphezu kweebholiti ezigqunyiweyo eziqhelekileyo kwiindawo ezifuna ngamandla.
I-Anti-Corrosion ekhethekileyo kunye ne-Anti-Rust Performance
I-multi-layered zinc-aluminium flake structure ye-Dacromet yenza zombini i-barrier effect kunye ne-anode effect yombingelelo. Le ndlela imbini ibonelela 7 ukuya 10 amaxesha ukuxhathisa ukubola kweengubo zemveli ze-electro-galvanized. Umgangatho ophezulu we-Dacromet flange bolts unokufezekisa ngaphezu kweeyure ze-1,200 zokumelana nokutshiza ityuwa ngaphandle kokubonakala kwe-rust ebomvu, ukuqinisekisa ukukhuselwa kwexesha elide lokuchasana ne-rust nakwiindawo zendlela ezinxweme, zaselwandle, okanye ezinetyuwa eninzi.
Akukho Mngcipheko woMbane weHydrojeni
Iibholiti eziphezulu (ingakumbi iBanga le-10.9 kunye ne-12.9) zithinteka kakhulu kwi-hydrogen embrittlement xa zicutshungulwa yi-electroplating eqhelekileyo. Inkqubo yeDacromet iphelisa i-acid pickling kunye ne-electrolytic deposition, ukuphepha ngokupheleleyo ukuqaliswa kwe-hydrogen. Oku kwenza i-Dacromet ibe yinto ekhethiweyo yokugquma kwiibholithi ze-flange ezibalulekileyo zesakhiwo kunye nokhuseleko.
I-Thin Coating igcina i-Tread Fit
Ngobunzima obuqhelekileyo be-4-8 μm kuphela, i-Dacromet yokugqoka ayitshintshi kakhulu i-pitch diameter ye-bolt threads. Oku kuvumela ukusetyenziswa kwamandongomane asemgangathweni ngaphandle kwesidingo sokugqwesa, nto leyo edla ngokufuneka kwiingubo ezityebileyo zediphu. Isiphumo kukudibana komsonto ongcono, ukulayishwa kwangaphambili okungaguqukiyo, kunye nokudityaniswa lula kweebholithi zeflange.
4. Ukuthelekiswa kokuSebenza kweeBolt Coatings
Le theyibhile ilandelayo ithelekisa iDacromet kunye nezinye iindlela zokwaleka eziqhelekileyo ezisetyenziswa kwiibholiti:
| Ipropati | Dacromet | Electro-Zinc Plating | Hot-Dip Galvanizing |
| Ukutyeba kokutyabeka | 4–8 μm | 5–15 μm | 40–80 μm |
| Ukumelana neSitshizi seTyuwa (kwirust ebomvu) | ≥ 1,000–1,200 h | 100–300 h | 500–800 h |
| I-Hydrogen Embrittlement Risk | Akukho nanye | Phezulu (ifuna ukubhaka) | Phakathi |
| Ukumelana nobushushu obuphezulu | Ukuya kuthi ga kuma-300°C | ≤ 120°C | ≤ 200°C |
| Umsonto Fit Ukuhambelana | Kugqwesileyo (amandongomane aqhelekileyo) | Kulungile | Ifuna overtapping |
| Ukufaneleka kwiiBolts eziPhezulu zamandla | Efanelekileyo (10.9 / 12.9) | Ilinganiselwe | Phakathi |
Itheyibhile 1. Ukusebenza okuthelekisayo konyango lomphezulu webholithi eqhelekileyo.
5. Izikhokelo zokuKhetha iiBolts zeDacromet Flange
Xa ukhankanya iibholiti ze-Dacromet flange zeprojekthi, qwalasela ezi zinto zilandelayo ukuze uqinisekise ukusebenza kakuhle kwe-anti-corrosion kunye nokuthembeka ngokubambisana:
1.Ukonakala kokusingqongileyo: Ukuvezwa konxweme, elwandle, kwimizi-mveliso, okanye kwindlela enetyuwa ngokuqhelekileyo kuthethelela iBanga B okanye ngaphezulu kweengubo zeDacromet.
2.Bolt ibakala lamandla: KwiBanga le-10.9 kunye ne-12.9 ye-flange bolts, i-Dacromet icetyiswa ngamandla ukuphelisa umngcipheko we-hydrogen embrittlement.
3.Ukubonakaliswa kobushushu: Izicelo ezisondela kwi-250-300 ° C zixhamla kwi-Dacromet yokuzinza kwe-thermal.
4.Iimfuno zoxinzelelo lweTorque: Cacisa i-topcoat ene-lubricated (umzekelo, i-PLUS® okanye i-DACROLUB®) xa ulawulo oluchanekileyo oluchanekileyo lubalulekile.
5.Ukuhambelana neendawo zokukhwelana: I-Dacromet ibonisa ukuhambelana kakuhle kwe-bimetallic kunye namacandelo e-aluminium, ukunciphisa umngcipheko we-galvanic corrosion.
6. Ukuqukumbela
I-Dacromet flange bolts imele isisombululo esivuthiweyo, esisebenza ngokukhawuleza esijongene nokunyaniseka komatshini kunye nokukhuselwa kwexesha elide. Ngokudibanisa inzuzo yokusabalalisa umthwalo wentloko yeflange kunye neyona nto ibalaseleyo anti-umhlwa kwaye anti-rust iipropathi ze-zinc-aluminium flake coating, ezi bholithi zihambisa inkonzo ethembekileyo kwiindawo ezinobundlobongela.
Izinto eziphambili ezithathwa ziinjineli kunye neengcali zokuthenga zibandakanya:
- I-Dacromet inikezela ngamaxesha angama-7-10 ukuxhathisa ukubola kwe-electro-zinc plating yesiqhelo ngelixa ihlala ibhityile ngokwaneleyo ukugcina ukulingana kwentambo eqhelekileyo.
- Inkqubo engeyiyo i-electrolytic iphelisa ngokupheleleyo i-hydrogen embrittlement, iyenze ilungele iibholiti ze-flange eziphezulu.
- Uzinzo olugqwesileyo lobushushu obuphezulu (ukuya kuthi ga kwi-300 ° C) kunye nokuxhathisa imichiza ngakumbi ukwandisa amathuba okusebenza.
- Uyilo oludibeneyo lwe-flange lwenza lula ukudibanisa kunye nokuphucula ukusebenza ngokubambisana phantsi kwe-vibration kunye nokulayisha i-cyclic.
Nokuba zisetyenziselwa i-chassis yeemoto, ii-injini zomoya ezingaselunxwemeni, iziseko zophuhliso ezingaselunxwemeni, okanye izixhobo ezinzima zoshishino, iibholiti ze-Dacromet flange zibonelela ngendlela eqinisekisiweyo eya kubomi benkonzo obude, ukugcinwa okuncitshisiweyo, kunye nokhuseleko olongeziweyo. Ukucacisa ibakala elichanekileyo le-Dacromet kunye nokuqinisekisa ulawulo olululo lomgangatho luya kwandisa izibonelelo ezichasene ne-rust kunye ne-anti-corrosion ukuba ezi zibholithi eziphambili zenzelwe ukuhambisa.
