Iibholiti zeDacromet Flange

2026-11-09

1. Intshayelelo

Kwizicelo zamashishini zanamhlanje, ingqibelelo yexesha elide lee-bolted joints ixhomekeke kakhulu ekusebenzeni ukhuseleko lomhlwa kwaye ukusebenza anti-rust. I-zinc plating yesiqhelo kunye ne-hot-dip galvanizing idla ngokusilela kwiindawo ezinobundlongondlongo ezifana neziseko zophuhliso ezingaselunxwemeni, amaqonga angaphesheya konxweme, izityalo zemichiza, kunye neendawo ezingaphantsi kweemoto ezivezwe kwiityuwa zendlela. Iibholiti zeDacromet flange ukudibanisa iinzuzo zesakhiwo soyilo lwe-flange-head kunye neyona nto ibalaseleyo umhlwa-wokuthintela kwaye anti-umhlwa iipropathi ze-zinc-aluminium flake coatings.

I-Dacromet (ekwabizwa ngokuba yi-zinc flake coating) yinto engeyiyo i-electrolytic, unyango olusekwe emanzini. Ibeka umaleko obhityileyo kodwa osebenza kakhulu we-zinc kunye neeflakes ze-aluminiyam ezidityaniswe yichromate matrix, inikezela ngeyona ndlela ibalaseleyo. ukhuseleko lomqobo, ukhuseleko lwedini lwecathodic, kwaye ukuziphilisa. Ifakwe kwiibholiti ze-flange, le ngubo inikezela ngokuthembekileyo ixesha elide ukuxhathisa umhlwa ngaphandle kokubeka esichengeni umsonto, ukuchaneka kwetorque, okanye ukwazisa umngcipheko we-hydrogen embrittlement.

Umzobo 1. Iibholithi eziphezulu ezigqunywe yiDacromet ezinesilivere-grey anti-corrosion finish

2. I-Flange Bolts kunye ne-Dacromet Coating Technology

Ibhawudi yeflange ineflange edityanisiweyo esetyhula phantsi kwentloko enehexagonal esebenza njengewasha eyakhelweyo. Olu yilo lusasaza amandla okubamba phezu kwendawo enkulu yokuthwala, ukunciphisa umonakalo ongaphezulu kunye nokuphucula ukuxhathisa ukukhulula okubangelwa yi-vibration. Xa ezi bholiti zifumana i-Dacromet coating, indibaniselwano ivelisa i-fastener enikezela ukuthembeka komatshini kunye nomgangatho ophezulu. anti-rust kwaye ukumelana nomhlwa ukusebenza. Ingubo encinci (ngokuqhelekileyo i-5-12 μm) igcina i-geometry yentambo echanekileyo.

2.1 Ukubunjwa kunye neNkqubo

I-Dacromet yi-aqueous dispersion ye-zinc flakes, i-aluminium flakes, kunye ne-chromium oxides. Inkqubo engeyiyo ye-electrolytic ibandakanya: (1) ukucocwa komphezulu ngaphandle kokucholwa kweasidi; (2) ukusetyenziswa ngedip-spin, idiphu-drain okanye isitshizi; kunye (3) nokunyanga malunga ne-300 ° C ukudibanisa iiflakes kwiileya ezidlulanayo. Ifilimu ye-metallic silver-gray ebangelwayo inika i-multi-layer ukumelana ne-oxidation kunye nethembekileyo umqobo wokufuma.

2.2 IiNdlela zokuKhusela uKutya

I-Dacromet iphumelela ngokungaqhelekanga anti-umhlwa ukusebenza ngeendlela ezintathu ze-synergistic:

Ukhuseleko lomqobo: I-zinc engaphezulu kunye neeflakes ze-aluminium zenza umqobo we-labyrinthine ngokomzimba othintela amanzi, ioksijini, kunye neeyoni ezinobungozi ezifana neekloridi.
Ukhuseleko lwedini (lweCathodic): I-Zinc flakes i-corrode ngokukhethekileyo, isebenza njenge-anode yedini ekhusela i-substrate yensimbi ekubunjweni kwe-rust.
Ukunyamezela kunye nokuziphilisa: Iikhompawundi zeChromate zenza ifilimu ye-passive kwaye zinokufudukela kwimikrwelo emincinci, zibonelela ngokuqhubekayo ukuthintela umhlwakunye nokukwazi ukuzilungisa.

3. Izinto eziluncedo eziphambili zeDacromet Flange Bolts

Xa kuthelekiswa nonyango oluqhelekileyo lomphezulu, iibholiti ze-Dacromet flange zinika indibaniselwano ekhethekileyo yeenzuzo zokusebenza:

Ukuxhathisa okuPhakamileyo kwesitshizi seTyuwa: Ngokuqhelekileyo kudlula iiyure ze-1,000-1,200 zokuvavanywa kwetyuwa engathathi hlangothi (ISO 9227) ngaphandle kwe-rust ebomvu-ngokuqhelekileyo amaxesha angama-7-10 angcono kuneengubo ze-electro-galvanized.
Zero Hydrogen Embrittlement Risk: Inkqubo engeyiyo i-electrolytic iphelisa isizukulwana se-hydrogen, okwenza i-Dacromet ibe yinto efanelekileyo kwiBanga le-8.8, i-10.9 kunye ne-12.9 yamandla aphezulu.
IMaleko eNcinci, eZinzileyo: Kwi-5-12 μm kuphela, i-coating igcina ukuchaneka kwentambo kwaye ivumela amantongomane aqhelekileyo ukuba asetyenziswe ngaphandle kokuphinda ucofe.
Ukuxhathisa ubushushu okugqwesileyo: Igcina ingqibelelo yokukhusela ukuya kwi-300 ° C, iphezulu kakhulu kuneengubo eziqhelekileyo ze-zinc ezithobisa ngaphezu kwe-100-200 ° C.
Okugqwesileyo kwiMozulu kunye noKuxhathisa kwiMichiza: Ichasa i-atmospheres yezoshishino, iityuwa zendlela, i-acids epholileyo kunye ne-alkali ngelixa inikezela ixesha elide anti-rustukusebenza ngaphandle.
Ulawulo olululo lweFriction: Ngee-topcoat ezigcotyiweyo ezikhethiweyo, i-coefficient ye-friction inokulawulwa ngokuqinileyo kumthwalo othembekileyo wokubamba.

4. Ukuthelekiswa koMsebenzi kunye neeNgqungquthela zeMveli

Le theyibhile ingezantsi ishwankathela iiyantlukwano eziphambili ukhuseleko lomhlwa kunye neempawu zokwaleka.

Ipropati	Dacromet	Electro-Galvanizing	Hot-Dip Galvanizing
Ukutyeba kokutyabeka	5–12 μm	5–15 μm	40–80 μm
Isitshizi setyuwa (akukho mhlwa obomvu)	≥1,000–1,200 h	100–300 h	500–800 h
I-Hydrogen Embrittlement	Akukho nanye	Umngcipheko ophezulu	Umngcipheko ophakathi
Ukumelana nobushushu	Ukuya kuthi ga kuma-300°C	≤100°C	≤200°C
Umsonto Fit Impact	Ubuncinci / bugqwesileyo	Kancinci	Isoloko ifuna ukucofa kwakhona

Itheyibhile 1. Ukusebenza okuthelekisayo kwe-Dacromet kunye neengubo eziqhelekileyo ze-zinc ze-fasteners.

5. Izicelo eziqhelekileyo

Iibholiti zeDacromet flange zicaciswa naphi na apho ziphezulu ukumelana nomhlwa kufuneka zidityaniswe nokuthembeka koomatshini:

Iimoto: I-chassis, ukunqunyanyiswa, iisistim zeebhuleki kunye namalungu angaphantsi abekwe kwityuwa yendlela.
Amandla omoya & nonxweme: I-Tower flanges, iindibano ze-nacelle kunye noqhagamshelwano lwesakhiwo kwi-saline atmospheres.
Ulwakhiwo & neziseko: Iibhulorho, izakhiwo ezingaselunxwemeni, iindawo zokugada ezifuna ixesha elide ukuthintela umhlwa.
Oomatshini abanzima kunye nololiwe: Izixhobo kwiindawo ezifumileyo okanye ezinobundlobongela bekhemikhali apho anti-umhlwaukusebenza kubalulekile.

6. Iinkcazo eziqhelekileyo

Iibholiti ze-Dacromet flange zenziwa kwimigangatho emikhulu yamazwe ngamazwe kunye namabakala amandla:

Ipharamitha	Uluhlu oluqhelekileyo / IiNqobo
Imigangatho	DIN 6921, ISO 4162, GB/T 5787 / 5789, ASME B18.2.1
Amabanga Amandla	8.8, 10.9, 12.9 (metric); SAE Grade 5/8 (intshi)
Idayamitha yomsonto	i-M5–M24 (metric); 1/4"–5/8" (ikomkhulu)
Uluhlu lobude	10 mm – 200 mm (ubude obuqhelekileyo buyafumaneka)
Ukutyeba kokutyabeka	Ngokwesiqhelo 5–12 μm (iBanga A / B ukwahluka)
Imbonakalo	Isinyithi esisilivere-ngwevu (matte)

7. UFakelo lweZenzo eziNgcono kunye nesiphelo

Ukwandisa i anti-umhlwa ubomi benkonzo ye-Dacromet flange bolts: sebenzisa amantongomane afakwe kwi-Dacromet kunye neewasha apho kunokwenzeka; landela amaxabiso etorque acetyiswayo (ingxabano elawulwayo ixhasa umthwalo obambekayo ochanekileyo); gwema umonakalo ogqithiseleyo womatshini ngexesha lokuphatha; kwaye ugcine izibophelelo kwiimeko ezomileyo ngaphambi kokusetyenziswa.

Isishwankathelo, i-Dacromet flange bolts imele isisombululo esivuthiweyo, esisebenza ngokufanelekileyo esijongene ngokuphumelelayo neemfuno ezimbini zokuthembeka koomatshini kunye nexesha elide. ukhuseleko lomhlwa. Ngokudibanisa iingenelo zokusasaza umthwalo woyilo oludityanisiweyo lweflange kunye nocweyo oluncinci, olusebenzayo kakhulu lwezinc-aluminiyam yeflake yokugquma, ezi zibophelelo zihambisa ezibalaseleyo. anti-rust ukusebenza, ukususa imingcipheko ye-hydrogen embrittlement, kunye nokugcina ulawulo oluchanekileyo lwe-dimensional.

Kwiindawo apho iziqhoboshi ezenziwe nge-electro-galvanized okanye ezishushu-dip ziya kubandezeleka ngaphambi kwexesha. umhlwa kunye nokuthotywa-i-coastal, marine, i-automotive, kunye ne-industrial setting-i-Dacromet flange bolts zibonelela ngenye indlela eqinisekisiweyo, ehlala ixesha elide. Ubuhle babo ubume bemozulu, ukumelana ne-oxidation, kwaye ukukhuselwa kwedini Iinkqubo ziqinisekisa ubomi obude benkonzo kunye nokunciphisa iindleko zokuzilungisa, nto leyo ezenza zibe lolona khetho lukhethwayo kwiinjineli kunye nabayili kwihlabathi liphela.