Umthengisi weFluorozirconic Acid — I-Metal Pre-treatment Grade

Yintoni iFluorozirconic Acid?

I-Fluorozirconic Acid (i-hexafluorozirconic acid, i-H₂ZrF₆) yi-inorganic fluoride compound enikezelwa njengesisombululo samanzi esingama-40–45%. Yi-reagent ephambili kwi-metal-free chromate pre-treatment chemistry, apho ithatha indawo ye-hexavalent chromium-based conversion coats kwi-aluminium, i-zinc, kunye ne-galvanized steel. Isabela kumphezulu wesinyithi ukuze yenze umaleko wokuguqula i-zirconium oxide/fluoride obhityileyo, onamathelayo okhuthaza ukunamathela kwepeyinti kwaye unike ukhuseleko lokugqwala kwinqanaba elithile.

Iingubo zokuguqula ezingenaChromate

Ukusetyenziswa okuphambili kwe-fluorozirconic acid kukwiinkqubo zokugquma ezisekelwe kwi-zirconium ezisekelwe kwifilimu encinci — ezaziwa ngokuba “ziingubo ze-zirconia” okanye “iindlela zangaphambi konyango ezisekelwe kwi-Zr” — ezisebenza njengendlela engenazo ii-chromate endaweni yokugquma ezisetyenziswa kwi-chromate kunye ne-phosphate kwi-aluminium, i-zinc, kunye nentsimbi eqengqelekayo ngaphambi kokusetyenziswa kwengubo yendalo. Ezi nkqubo zisetyenziswa kakhulu kwimigca yokupeyinta yeemoto, izixhobo, kunye nemizi-mveliso ngokubanzi, eqhutywa luxinzelelo olulawulayo kwi-hexavalent chromium (REACH) kunye ne-phosphate emdaka.

Umphezulu weAluminiyam Unyango lwangaphambi konyango

Kwi-substrates ze-aluminium, i-fluorozirconic acid iqhekeza umaleko we-oxide wendalo ize ibeke ifilimu encinci, engenasimo se-ZrO₂/ZrFₖ. Le filimu iphucula ukunamathela kweengubo zomgubo, iipeyinti zolwelo, kunye nezincamathelisi, kwaye ibonelela ngokhuseleko lokugqwala kwinqanaba elithile. Iingubo ezisekelwe kwi-Zr kwi-aluminium zisetyenziswa kwiiphaneli zomzimba zeemoto, kwi-extrusions zokwakha, nakwiimpahla zabathengi. Le nkqubo idla ngokusetyenziswa kulungiselelo lomgca wengubo ye-coil engasulwanga okanye etshizwayo.

Sebenzisa kwiMigca yokuHlamba eyomileyo neyeCoil

Unyango lwangaphambi kokusetyenziswa kwe-Fluorozirconic acid lusebenza kumanqanaba aphantsi (ngesiqhelo i-50–200 ppm Zr), ubushushu obuphantsi, kwaye luvelisa udaka oluncinci, nto leyo eyenza ukuba lufaneleke kwiingubo zanamhlanje ezikhawulezayo kunye nemigca yokupenda yeemoto. Ziyahambelana neenkqubo zokwambathisa umgubo kunye nolwelo kwaye azivelisi manzi amdaka e-phosphate, nto leyo enciphisa iindleko zonyango lwamanzi amdaka. I-Terracore inikezela nge-fluorozirconic acid yokuxutywa kunye nokwenziwa kwizisombululo zokuhlamba zangaphambi konyango.