Tshaj tawm rau 2016-12-22Nws yog qhov paub zoo tias Dacromet yog cov tshuaj dispersible aqueous uas muaj zinc flake, aluminium flake thiab additives.Workpieces tom qab dipping thiab txau, kho 20min ntawm 80 ℃ nyob rau hauv pre-heating rauv, 30min ntawm 300 ℃ ntawm curing furnace.Ua kom hexavalent chromium yog adipic cawv thiab cov organic txo rau hauv cov kua dej ntawm dacromet txheej tsis yaj hauv dej.
Nws yuav tsum raug sau tseg tias qhov txo qis ntawm hexavalent chromium rau hauv trivalent chromium thiab trivalent chromium oxidation rau hauv hexavalent chromium yog cov txheej txheem thim rov qab.Yog li ntawd, nyob rau hauv lub sintered workpiece, trivalent chromium yuav txuas ntxiv mus oxidized rau hexavalent chromium, thiab hexavalent chromium yog carcinogen, yog li kev sib cuag yuav ua rau muaj kev phom sij rau kev noj qab haus huv.Yog li ntawd, cov tshuaj uas muaj chromium-muaj txheej txheem yog tsis yog xoom emissions, tsuav yog lub hav zoov ntawm hexavalent chromium, nws yuav muaj qee yam cuam tshuam rau ib puag ncig thiab tib neeg, yog li ntawd, qhov nrov ntawm chrome dawb Dacromet yog qhov tseem ceeb.
Nrog rau lub teb chaws kev tiv thaiv ib puag ncig kev siv zog txuas ntxiv mus ntxiv, ntau thiab ntau qhov chaw tsim tsheb yuav tsum tau chrome dawb dacromet coated qhov chaw.Thiab txawm tsim chrome dawb dacromet txheej txheej txheem.Xws li Volkswagen GMW3359, GM7111M thiab lwm yam.
Chrome dawb Dacromet feem ntau tab tom nrhiav rau lwm yam tshuaj es tsis txhob chromic acid passivation thiab kev sib txuas.Chrome dawb Dacromet txheej tsuas yog siv cov organic silicon, inorganic silicon, molybdate, tungstate, phosphate li binder, tib yam siv cov scaly zinc / aluminium flake raws li lub ntsiab muab tub lim, thiab dhau los ntawm kev foob tom qab kev kho mob, kom ua tiav tib yam zoo heev. corrosion kuj nrog chromium-muaj Dacromet txheej.
Chrome dawb Dacromet thev naus laus zis tsis yog tsuas yog muaj txiaj ntsig ntawm chromium-dacromet thev naus laus zis, tab sis kuj los ntawm kev npaj xim, txheej, zaj duab xis, txheej nws tus kheej yog dawb ntawm hexavalent chromium, qhov tseeb ntawm kev paub txog cov ntsuab tsis muaj tshuaj lom tsis zoo.Los ntawm ib puag ncig kev pom, nyob rau hauv lub ntiaj teb no Scope ntawm chrome dawb Dacromet es tsis txhob ntawm chrome dacromet kev taw qhia dav dav yuav tsis hloov, yuav coj ib tug tshiab puag ncig ntawm anti-corrosion technology teb ntawm ib puag ncig kiv puag ncig.
Post lub sij hawm: Jan-13-2022