Byoherejwe 2018-03-21Gukoresha ibishishwa bya dacromet, ibyuma byinshi bishyushya mesh umukandara wa mesh umukanda ugenzura ubushyuhe bwa zone ya preheat 80 ~ 120 ℃ purposeIntego nyamukuru yubu bushyuhe ni uguhumeka ubuhehere buri muri kote idatetse, icyarimwe, byanze bikunze biherekejwe nuburyo bwa chimique yo kugabanya chromium hexavalent na alcool.
Uburyo bwo kwiyemeza ni uruvange rwa Dacromet B (amazi ya chromic anhydride yo mu mazi) hamwe na polyethylene glycol reductant mukigereranyo.Igipfundikizo cyatekeshejwe ku kirahure hanyuma gishyuha kuri 120 ° C mu minota 15.Amazi yahumutse kandi ibintu bisigaye byari firime yijimye yijimye.
Niba igice cyo kwipimisha gishyushye kugeza ku minota 120, ibara ryikigina rihinduka icyatsi kibisi, kandi igipfundikizo kikaba gikomeye, ariko gishobora gukaraba n'amazi.Ikigaragara ni uko bidashoboka gukoresha ubushyuhe burebure kuri 120 ° C kugirango ukore igifuniko cya Dacromet.
Igihe cyo kohereza: Mutarama-13-2022