Kuthunyelwe ku 2018-03-21Ukusetshenziswa kwe-dacromet coating, izifudumezi ezijwayelekile zebhande lebhande lezinkampani ezilawula ukushisa kwendawo yokushisa engu-80 ~ 120 ℃。Inhloso eyinhloko yalokhu kufudumala ukuhwamukisa umswakama enamathela ngaphandle kokubilisa, ngesikhathi esifanayo, ngokuqinisekile kuhambisana. ngenqubo yamakhemikhali yokunciphisa i-chromium ene-hexavalent ngotshwala.
Indlela yalokhu kuzimisela iyingxube ye-Dacromet B ehlanzekile (i-aqueous chromic anhydride) kanye ne-polyethylene glycol reductant ngokulingana.Isembozo sibhakwa esilayidini sengilazi futhi sishiswe ku-120 ° C imizuzu engu-15.Amanzi ahwamuka futhi into esele kwakuyifilimu emanzi eluhlaza okumnyama.
Uma ucezu lokuhlola lushiswa imizuzu engu-120, umbala we-coating uba luhlaza okhanyayo, futhi ukugqoka kuba nzima, kodwa kungagezwa ngamanzi.Ngokusobala, akunakwenzeka ukusebenzisa ukushisa isikhathi eside ku-120 ° C ukuze usebenzise i-coating ye-Dacromet.
Isikhathi sokuthumela: Jan-13-2022