Dacromet Txheej Bolts-Ib Daim Ntawv Qhia Txog Zinc-Aluminium Flake Txheej Tshuab rau Fasteners 

1.Dab tsi yog Dacromet?

Dacromet tau tsim nyob rau xyoo 1960 los ntawm Asmeskas lub tuam txhab Pob Zeb Diamond Shamrock (tom qab MCI, tom qab ntawd NDS / Doerken MKS). Ameslikas tsim los daws cov teeb meem hydrogen embrittlement tsis ua haujlwm hauv cov tsheb muaj zog siab, nws tau dhau los ua tus qauv thoob ntiaj teb los tiv thaiv corrosion txheej txheem, teev nyob rau hauv ISO 10683, ASTM B695, thiab ntau lub teb chaws tus qauv (GB / T 18684 hauv Suav teb).

Cov yam ntxwv tseem ceeb

Cov txheej txheem tsis-electrolytic: Dacromet yog siv los ntawm dip-spin txheej, tsis electroplating. Tsis muaj hluav taws xob tam sim no dhau los ntawm qhov chaw, tshem tawm hydrogen tiam thiab muaj feem cuam tshuam embrittlement.

Flake-based txheej: Cov txheej txheej muaj microscopic zinc thiab txhuas flakes (20-60 nm tuab) uas sib tshooj zoo li lub ru tsev shingles, tsim kom muaj qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom.

Nyias thiab uniform: Cov txheej txheej tuab yog 4-10 µm - nyias txaus los khaws cov xov haum thiab qhov ntev ntev, tsis zoo li tuab kub-dip galvanizing.

Environmentally raws: Niaj hnub nimno Dacromet tsis muaj hexavalent chromium (Cr⁶⁺), ntsib RoHS, REACH, thiab ELV (End-of-Life Vehicle) cov lus qhia.

Thaum tshav kub kub resistant: Cov txheej txheej inorganic tiv taus qhov kub thiab txias mus txog 250 ° C, ua rau nws tsim nyog rau lub cav bay thiab tso pa tawm-nyob ib sab fasteners.

2.Key Advantages

Superior corrosion kuj: 500-1,200 teev ntawm nruab nrab ntsev tsuag (NSS) ib ISO 9227 - 5-10 npaug zoo dua li cov pa zinc plating (96-240 teev).

Zero hydrogen embrittlement: Cov txheej txheem tsis-electrolytic tshem tawm hydrogen absorption, ua Dacromet cov txheej txheem nyiam rau cov khoom siv muaj zog (Qib 8.8-12.9) qhov twg electroplating raug txwv lossis txwv.

Zoo heev txheej uniformity: Dip-spin txheej npog npog qhov chaw, qhov qhov muag tsis pom, thiab cov geometry nyuaj ntau yam zoo li electroplating lossis kub-dip galvanizing. Xov crests thiab cov hauv paus hniav tau txais kev pab zoo ib yam.

Nyias txheej, khaws cia tolerances: Ntawm 4-10 µm, Dacromet tsis cuam tshuam nrog kev sib koom ua ke los yog kev sib raug zoo torque-tension. Tsis tas yuav tsum tau rov tapping ntawm txiv ntseej, tsis zoo li kub-dip galvanized fasteners.

Thaum tshav kub kub kuj: Cov txheej txheej zoo li ceramics tswj nws cov khoom tiv thaiv ntawm qhov kub txog li 250 ° C (nruam) thiab 300 ° C (lub sijhawm luv), ntau tshaj li cov organic txheej.

Environmental ua raws li: Dawb ntawm Cr⁶⁺, ua raws RoHS, REACH, thiab ELV cov lus qhia. Cov dej-raws li txheej ua kua muaj tsawg VOC emissions piv rau cov kuab tshuaj raws li lwm txoj.

Zoo adhesion thiab hnav tsis kam: Lub chemically bonded flake txheej tiv thaiv chipping, khawb, thiab tuav kev puas tsuaj zoo dua li cov pa plating.

3. Sib piv nrog Lwm Cov Txheej Txheem

Cov lus hauv qab no sib piv Dacromet nrog rau ob qho kev sib txuas sib txuas ntau tshaj plaws - electroplated zinc plating thiab kub-dip galvanizing:

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

4. Daim ntawv thov

Automotive: Lub cav Cheebtsam, chassis fasteners, brake systems, ncua kev kawm ntawv, thiab underbody hardware. Dacromet tau teev tseg los ntawm OEMs loj (VW, Toyota, GM, Ford) rau lub zog siab bolts (Qib 8.8-10.9) qhov twg hydrogen embrittlement yuav tsum tau zam.

Kev tsim kho & infrastructure: Kev sib txuas ntawm cov qauv hlau, choj kho vajtse, qhov txuas txuas, thiab kev sib koom ua ke ua ke raug rau qhov chaw ntub thiab corrosive.

Hluav taws xob & lub zog: Transmission ntauwd bolts, switchgear hardware, thiab hluav taws xob enclosure fasteners yuav tsum tau mus ntev rau sab nraum zoov durability.

Railway & tsheb thauj mus los: Rolling stock fasteners, taug qab cov khoom, thiab cov khoom siv teeb pom kev zoo raug rau de-icing ntsev thiab atmospheric corrosion.

Marine & coastal: Dock thiab harbor hardware, offshore platform fasteners, thiab cov khoom nyob rau hauv ntsev-laden atmospheres (ntxiv nrog ib tug sealer topcoat rau siab tshaj plaws kev tiv thaiv).

Cua zog: Ntauwd flange bolts, kho vajtse nacelle, thiab lub hauv paus thauj tog rau nkoj bolts xav tau ntau xyoo ntawm kev saib xyuas tsis muaj kev tiv thaiv corrosion.

Khoom siv & HVAC: Thaum tshav kub kub exchanger fasteners, lub cub tawg Cheebtsam, thiab sab nraum zoov chav tsev kho vajtse qhov twg thaum tshav kub kub kuj thiab corrosion tiv thaiv yog ob qho tib si yuav tsum tau.

Cov ntsiab lus

Dacromet yog ib qho pov thawj, kev ua haujlwm siab tiv thaiv corrosion txheej tshuab rau steel fasteners. Nws cov qauv zinc-aluminium flake tshwj xeeb, siv los ntawm cov txheej txheem tsis-electrolytic dip-spin, xa 500-1,200 xuab moos ntawm ntsev tsuag tsis muaj hydrogen embrittlement - ua rau nws lub txheej ntawm kev xaiv rau lub zog siab bolts hauv tsheb, kev tsim kho, thiab lub zog. Nrog nws cov yeeb yaj kiab nyias, zoo ib yam, kev ua raws li ib puag ncig, thiab kev ua haujlwm kub zoo heev, Dacromet txuas qhov sib txawv ntawm cov nqi qis zinc plating thiab kim stainless hlau, muab qhov zoo sib npaug ntawm kev ua tau zoo, kev ntseeg siab, thiab tus nqi rau kev thov rau kev thov fastener.