Dacromet Hexagonal Bolts- Advanced Anti-Corrosion & Anti-xeb Fastening Solutions 

2. Dacromet Txheej yog dab tsi?

Dacromet yog ib qho khoom siv zinc-aluminium flake txheej txheej txheem tsim los ua lwm txoj hauv kev rau cov pa electroplating. Cov txheej txheej muaj sib tshooj zinc flakes thiab aluminium flakes nyob rau hauv ib qho inorganic binder. When applied to hexagonal bolts and cured at approximately 300°C, it forms a dense, multi-layered barrier that delivers outstanding anti-xeb thiab anti-corrosion kev ua tau zoo.

Cov yam ntxwv tseem ceeb ntawm Dacromet txheej ntawm bolts:

• Nyias zaj duab xis: Feem ntau tsuas yog 4-12 μm (feem ntau 6-8 μm), khaws cia xov geometry thiab haum rau precision hexagonal bolts.
• Barrier + sacrificial tiv thaiv: Laminated zinc thiab aluminium flakes thaiv cov dej noo / oxygen thiab muab galvanic (sacrificial) tiv thaiv cov hlau substrate.
• Uniform coverage: Dip-spin los yog tshuaj tsuag daim ntawv thov ua kom muaj kev tiv thaiv zoo ntawm cov geometry nyuaj, nrog rau cov xov sib sib zog nqus thiab lub taub hau hexagonal.
• Qhov tsos: Uniform metallic silver-grey matte tiav, haum rau kev ua haujlwm zoo thiab zoo nkauj siv.

3. Qhov tseem ceeb ntawm Dacromet Hexagonal Bolts

Exceptional Corrosion Resistance & Anti-xeb Performance

Qhov zoo tshaj plaws ntawm Dacromet-coated hexagonal bolts yog qhov zoo heev corrosion kuj thiab mus ntev anti-xeb muaj peev xwm. Txawm hais tias nyias txheej ntawm tsuas yog 4-8 μm, cov bolts no niaj hnub tiv taus qhov nruab nrab ntawm cov tshuaj ntsev ntsev (ASTM B117 / ISO 9227) rau ntau tshaj 1,000 teev - thiab feem ntau 1,200 txog 2,000 teev - tsis muaj xeb liab. Qhov no feem ntau yog 7-10 npaug zoo dua li cov pa hluav taws xob-galvanizing (100-300 teev) thiab kev sib tw nrog lossis zoo dua rau ntau qhov kub-dip galvanized tiav.

Cov txheej txheem ntau txheej zinc-aluminium flakes thaiv cov dej noo, oxygen, thiab chlorides. Txawm hais tias hauv zos puas lawm, kev txi ntawm zinc tseem tiv thaiv lub bolt substrate, txhim kho tag nrho. tiv thaiv xeb. Qhov no ua rau Dacromet hexagonal bolts zoo tagnrho rau ntug hiav txwv dej, dej hiav txwv, tsheb hauv qab, thiab chaw ua haujlwm.

Zero Hydrogen Embrittlement Risk

Ib qho txiaj ntsig tseem ceeb rau lub zog siab hexagonal bolts yog qhov tsis muaj qhov ua tiav ntawm hydrogen embrittlement txaus ntshai. Electroplating qhia txog atomic hydrogen rau hauv cov hlau, uas tuaj yeem ua rau ncua kev tawg ntawm cov qib 10.9, 12.9, thiab cov qauv bolts xws li ASTM A490. Dacromet yog non-electrolytic thiab zam aggressive acid pickling, yog li tsis muaj hydrogen qhia. Dacromet muaj zog heev bolts yog li ntawd yuav tsum tsis muaj tom qab-plating ci thiab muaj kev ntseeg siab dua nyob rau hauv kev ruaj ntseg-tseem ceeb pob qij txha. Ntau lub tsheb OEMs qhia Dacromet lossis sib npaug zinc-flake txheej rau qhov no.

Kub Kub Resistance

Dacromet coatings tswj kev ncaj ncees thiab anti-corrosion kev ua haujlwm ntawm qhov kub thiab txias mus txog 300 ° C. Cov pa zinc electroplating degrades saum 100-120 ° C, thaum kub-dip galvanizing muaj qis dua txwv. Qhov kev ruaj ntseg thermal no haum rau Dacromet hexagonal bolts rau lub cav compartments, lub tshuab tso pa, lub qhov cub, thiab cov khoom siv hluav taws xob tsim hluav taws xob uas ob qho tib si clamping quab yuam thiab mus sij hawm ntev. tiv thaiv xeb yuav tsum tau.

4. Kev sib piv kev ua haujlwm

Cov lus hauv qab no piv Dacromet nrog lwm cov txheej txheem siv rau ntawm hexagonal bolts:

Table 1. Cov kev ua tau zoo ib yam rau txheej txheej ntawm steel hexagonal bolts. Cov txiaj ntsig tiag tiag sib txawv nrog cov txheej txheem tsis ua haujlwm thiab tuab.

5. Cov ntawv thov ib txwm

Ua tsaug rau superior anti-corrosion, anti-xeb, tshav kub tsis kam, thiab kev ywj pheej los ntawm hydrogen embrittlement, Dacromet hexagonal bolts tau dav siv hauv:

5.1 Automotive Kev Lag Luam

Chassis Cheebtsam, ncua kev kawm ntawv, nres sib dhos, cav mounts, thiab hauv qab daim ntawv thov. Cov no bolts yuav tsum tiv thaiv txoj kev ntsev, noo noo, thermal cycling, thiab kev co. Tsis muaj hydrogen embrittlement yog qhov tseem ceeb rau qib siab 10.9 thiab 12.9 fasteners nyob rau hauv kev ruaj ntseg cov pob qij txha.

5.2 Kev tsim kho, Infrastructure & Heavy Engineering

Cov choj, steel qauv, xa cov yees, cua turbines, thiab cov tshuab hnyav yuav tsum tau mus ntev corrosion kuj. Dacromet hexagonal bolts xa txhim khu kev qha tiv thaiv xeb sab nraum zoov thiab hauv ntug dej hiav txwv ib puag ncig thaum khaws cia kom haum thiab ua haujlwm siab tensile.

5.3 Marine, Offshore & Chemical Ib puag ncig

Tshuaj tsuag ntsev, tsis tu ncua av noo, thiab tshuaj lom neeg xav tau tshwj xeeb anti-corrosion kev ua tau zoo. Dacromet-coated hexagonal bolts ua haujlwm rau cov khoom siv nkoj nkoj, cov chaw sab nrauv, chaw nres nkoj, thiab cov txheej txheem-cog fasteners uas cov txheej txheem zinc txheej ua tsis tau sai.

5.4 Lwm Cov Kev Siv Khoom Siv

Cov khoom siv hluav taws xob, cov khoom siv ua liaj ua teb, cov khoom siv hluav taws xob tsim hluav taws xob, thiab cov tshuab kev lag luam dav dav tau txais txiaj ntsig los ntawm kev sib xyaw ua ke ntawm cov khoom siv dag zog, qhov tseeb qhov tseeb, thiab ruaj khov. anti-xeb Kev tiv thaiv muaj los ntawm Dacromet hexagonal bolts.

6. Cov lus xaus

Dacromet hexagonal bolts muab cov kev daws teeb meem zoo rau cov ntawv thov uas xav tau kev ua haujlwm siab ua haujlwm ua ke nrog zoo heev anti-corrosion thiab anti-xeb kev tiv thaiv. Nrog ntsev-txhaj tshuaj tiv thaiv feem ntau tshaj 1,000 teev, xoom hydrogen embrittlement kev pheej hmoo, tshav kub tsis kam mus rau 300 ° C, thiab nyias cov ntaub ntawv pov thawj uas khaws cov xov haum, Dacromet-coated bolts kov yeej cov kev txwv ntawm cov tsoos zinc plating thiab nquag ua haujlwm kub-dip galvanizing hauv cov chaw tseem ceeb.