Izinhlobo ze-Phosphate Treatment for Powder Coating

Izinhlobo zokwelashwa kwe-Phosphate i-powder coating

I-iron phosphate

Ukwelashwa nge-iron phosphate (evame ukubizwa ngokuthi i-layer phosphating encane) inikeza izakhiwo ezinhle kakhulu zokunamathela futhi azikho imiphumela emibi ezakhini zemishini ye-powder coating. I-iron phosphate ihlinzeka ngokuvikeleka okuhle kokugqwala kokuchayeka emazingeni okugqwala aphansi naphakathi, nakuba ingakwazi ukuncintisana ne-zinc phosphate kulokhu. I-iron phosphate ingasetshenziswa endaweni yokufutha noma yokudipha. Inani lezinyathelo zenqubo lingahluka kusuka ku-2-7, kuye nge-basemetal kanye nesidingo sokuvikela. Ngokuphathelene nokwelashwa kwe-zinc phosphate, inqubo ye-iron phosphate iyisakhi sofuzoralishibhile futhi kulula ukufeza Ungqimba lwe-phosphate luvamise ukuba nesisindo esiphakathi kuka-0.3-1.0g/m2.

I-Zinc phosphate

Inqubo ye-zinc phosphate ibeka ungqimba olujiyile kune-iron phosphating, futhi iqiniswe ngokuvikelekile kusisekelo. I-Zinc phosphate nayo inezinto zokunamathela ezivumayo, nakuba kwezinye izimo ingase inciphise ubuqotho bemishini (ukuguquguquka kwesistimu. I-zinc phosphate inikeza ukuvikelwa kokugqwala okuhle kakhulu futhi iyanconywa ekwelapheni kwangaphambili kwensimbi kanye nensimbi ethathiwe ukuze ivele kumakilasi okugqwala okuphezulu. I-Zinc phosphate ingasetshenziswa endaweni yesifutho noma ediphini Inani lezinyathelo zenqubo lihluka phakathi kuka-4-8.
I-Zinc phosphating ivamise ukubiza kakhulu kune-iron phosphating, ngenxa yazo zombili izindleko zezitshalo eziphakeme kanye nokusebenza okubizayo.

I-Chromate

Uchungechunge lwamasistimu ahlukene luyatholakala ngaphakathi kweqembu le-chromate lokwelashwa. Uhlelo olukhethiwe luncike ohlotsheni lwensimbi noma i-alloy, uhlobo lwento (indlela yokukhiqiza: i-casr, i-extruded njll.) futhi-ke, izidingo zekhwalithi.
Ukwelashwa kwe-Chromate kungase kuhlukaniswe ngokuthi:

Le yakamuva iyindlela evame kakhulu yokwelashwa kwangaphambili ngaphambi kokumbozwa ngempushana. Inani lezinyathelo zenqubo lingahluka, kuye ngokuthi impahla kufanele ilungiswe kangakanani ukuze i-chromating, isibonelo ngokukhetha, i-neut.ralization njll. kanye nezinyathelo zokuhlambulula.