Dacromet Flange Bolts-Anti-Corrosion Flange Fasteners nrog Zinc-Aluminium Flake Txheej 

Ntu 1 - Flange Bolt Txheej txheem cej luam

Dab tsi yog Flange Bolt?

Lub flange bolt yog ib lub taub hau hex ntsia liaj qhov rooj nrog ib qho kev sib xyaw ua ke zoo li flange ntawm lub hauv paus ntawm lub taub hau. Lub flange faib cov clamping load nyob rau hauv ib cheeb tsam dav, txo qhov siab saum npoo ntawm cov khoom sib txuas thiab tiv thaiv kev puas tsuaj rau qhov muag muag lossis pleev xim. Qhov no tshem tawm qhov xav tau ntawm lub tshuab ntxhua khaub ncaws sib cais, ua kom yooj yim sib dhos thiab txo qhov suav.

Cov yam ntxwv tseem ceeb

Integral flange: Faib clamping quab yuam hla ib cheeb tsam loj dua li tus qauv hex taub hau, txo cov kabmob kev ntxhov siab thiab tiv thaiv qhov chaw indentation.

Serrated xaiv: Serrated flange underside tom rau hauv mating nto, muab built-in los tiv thaiv loosening tsis muaj ntxiv locking Cheebtsam.

Standardized qhov ntev: Tsim los rau DIN 6921, ISO 4162, lossis GB / T 5787, ua kom muaj kev sib hloov pauv thoob ntiaj teb cov saw hlau.

Qib siab zog: Muaj nyob rau hauv cov khoom vaj khoom tsev chav 8.8 thiab 10.9, haum rau kev siv cov qauv thiab cov kabmob load.

Specifications

Ntu 2 — Dacromet Txheej Technology

Dacromet (达克罗) yog dej-raws li, uas tsis yog-electrolytic nto kho uas tso ib tug nyias zaj duab xis ntawm overlapping zinc thiab txhuas flakes bonded los ntawm inorganic chromium compounds. Siv los ntawm cov txheej txheem dip-spin-kho, nws muab ntau txheej txheej ntawm kev tiv thaiv corrosion yam tsis tau qhia hydrogen rau hauv cov hlau - qhov txiaj ntsig tseem ceeb rau lub zog siab.

Corrosion Protection Mechanism

Kev tiv thaiv Sacrificial: Zinc flakes corrode nyiam los tiv thaiv cov hlau substrate, txawm tias cov txheej yog khawb.

Lub cev barrier: Overlapping zinc-aluminium flakes tsim txoj kev tortuous uas thaiv cov dej noo, oxygen, thiab corrosive ions.

Tshuaj Passivation: Chromium compounds tsim ib txheej passive uas slows zinc dissolution thiab muab nws tus kheej-kho ntawm micro-scratches.

Cov txiaj ntsig tseem ceeb rau Flange Bolts

Tsis muaj hydrogen embrittlement: Cov txheej txheem tsis-electrolytic - muaj kev nyab xeeb rau Qib 8.8-10.9 high-strength flange bolts qhov twg electroplating txwv.

Nyias & uniform: 4-10 µm txheej khaws cov xov haum thiab flange geometry. Tsis muaj re-tapping ntawm txiv ntseej yuav tsum tau.

500-1,200 teev ntsev tsuag: 5-10 npaug zoo dua li cov pa zinc plating, haum rau kev raug sab nraum zoov mus ntev.

Thaum tshav kub kub resistant: Withstands tas mus li kev pab cuam mus txog 250 ° C - zoo tagnrho rau lub cav bay thiab tso pa-nyob ib sab fasteners.

Environmentally raws: Cr⁶⁺-dawb, RoHS thiab REACH raws.

Txheej sib piv

Tshuaj tsuag ntsev raws ISO 9227 NSS. Hydrogen embrittlement yuav raug siv rau electroplated fasteners Qib 10.9 thiab siab dua.

Cov ntsiab lus

Dacromet flange bolts muab kev sib xyaw ua ke ntawm kev ua haujlwm zoo thiab kev tiv thaiv corrosion. Lub flange tseem ceeb ua kom yooj yim sib sau ua ke thaum faib cov khoom sib npaug, thiab Dacromet zinc-aluminium flake txheej muab 500-1,200 xuab moos ntawm ntsev tsuag tsis muaj hydrogen embrittlement. Cov fasteners no tau siv dav hauv tsheb, kev tsim kho, cua zog, thiab kev siv dej hiav txwv uas ob qho tib si txhim khu kev qha clamping kev ua tau zoo thiab kev ua haujlwm ntev ntev yog qhov tseem ceeb.