Daim ntawv thov ntawm zinc plua plav hauv galvanization
Dacro txheej txheem yog cov txheej txheem corrosion-resistant txheej thev naus laus zis uas tau swm nrog hauv tsev tsis ntev los no. Lub coating tuab feem ntau yog nruab nrab ntawm 5 txog 10 μm. Cov tshuaj tiv thaiv tsis xeb yog suav nrog cov txheej txheem hluav taws xob electrate, cov ntaub thaiv cov ntaub ntawv pov thawj, thiab sib xyaw ua cov txheej txheem chromate, nrog rau qhov "anodic" cov nyhuv ntawm Txhuas inhibiting zinc.
Piv rau cov tsoos electro-galvanizing, zinc-chromate pom kev ua kom muaj zog corrosion, ua 7 txog 10 lub sij hawm tiv thaiv hluav taws xob hluav taws xob. Nws tsis txom nyem los ntawm hydrogen embrittlement, ua rau nws tsim nyog tshwj xeeb rau kev ua kom muaj zog. Ib qho ntxiv, nws nta high kub tiv thaiv (kub kom ntev txog li 300 ° C).
Txheej Txheem Flow rau Zinc-Chromate Txheej thev naus laus zis:
Organic cov kuab tshuaj tawm → cov khoom siv kho tshuab polishing → spinning qhuav → Sintering (280-300 ° C, 15-30 min) → kom qhuav.
Tsis tas li ntawd, cov thev naus laus zis no yog kuab paug-thaum lub sijhawm txheej txheej, kos cim ib qho kev hloov pauv hauv keeb kwm kev kho mob hlau saum hlau. Nws sawv cev rau ib qho kev txiav tshuab hauv thaj teb ntawm cov hlau saum hlau deg thoob ntiaj teb, feem ntau tsim nyog rau kev siv tsheb thiab muaj lub zog sib xyaw ua ke nyob rau hauv ywj thiab tubular qauv. Cov txheej txheej ua pov thawj high ermeability, siab zoo, zoo heev coj kev tiv taus, huab cua siab tiv taus, thiab cov tshuaj muaj kuab paug ruaj khov.
Cov tsos ntawm Dacro txheej daws yog ib qho kev sib txuam nyiaj-grey xim. Cov txheej txheej daws teeb meem, tom qab tau ua tiav cov txheej txheem ua si thiab ua rau muaj 300 ° C, tsim cov chaw ntawm lub zinc thiab txhuas cov ntawv qhia lawv rau cov hlau substrate. Qhov chaw nyob nruab nrab ntawm cov ntawv dig thiab txhuas cov ntawv txheeb tau muaj ntau daim chromate, ua rau muaj nyias nyiaj nyias-grey dacro tshwj xeeb corrosion-resistant txheej thaum txias.
Qhov Zoo Ntawm Cov Neeg Kho Tshuab Galvanization
Cov txheej txheem yooj yim ua haujlwm, tau muaj zog siv hluav taws xob, muab kev muaj txiaj ntsig zoo, thiab muaj txiaj ntsig zoo dua hauv kev kho DACRO piv rau kev kho DACRO.
Lub galvanized txheej ua thov rau sab nraum zoov fasteners rau lub sij hawm ntev corrosion rau kev txi cov khoom ntawm zinc. Yog li ntawd, cov txheej yuav tsum muaj zinc txaus kom ntseeg tau tias sab nraum zoov fasteners muaj ntau caum ntawm kev tiv thaiv corrosion.
Hauv kev xyaum tas mus li, tsis hais txog hom corrosion niaj hnub ua haujlwm hauv kev cuam tshuam lossis ua kom qeeb tus nqi ntawm cov txheej txheem corrosion electrochemical. Cov khoom ntawm zinc hmoov ua nws ib qho tseem ceeb corrosion-resistant cov ntaub ntawv, ua rau nws cov ntawv thov thoob plaws.
Tuam Tshoj muaj cov khoom siv nplua nuj ntawm cov txhuas zinc ores. Nyob rau hauv xyoo tsis ntev los no, txoj kev txhim kho thiab kev thov ntawm zinc Plua-organic, nrog rau cov orrosion-activate, fluorocarbon, tsis tshua muaj lub ntiaj teb, thiab graphene, tau pab txhawb Qhov txo ntawm cov khoom siv tsis pub siv dua tshiab thaum muab cov kev txhim kho corrosion tshiab ua haujlwm thiab cov ntaub ntawv rau cov ntawv thov tiv thaiv.
Lub Sijhawm Post: Feb-11-2025
