Mitundu ya Chithandizo cha Phosphate cha Powder Coating

Mitundu ya mankhwala a Phosphate kwa ufa wophimba

Iron phosphate

Kuchiza ndi chitsulo phosphate (nthawi zambiri amatchedwa woonda wosanjikiza phosphating) amapereka zabwino kwambiri adhesion katundu ndipo alibe zotsatira zoipa mu makina katundu ❖ kuyanika ufa. Iron phosphate imapereka chitetezo chabwino cha dzimbiri kuti chiwonekere m'magulu otsika komanso apakati, ngakhale sichingapikisane ndi zinc phosphate pankhaniyi. Iron phosphate ingagwiritsidwe ntchito popopera kapena kuviika. Kuchuluka kwa masitepe munjirayo kumatha kusiyana ndi 2-7, kutengera maziko ndi zofunikira zotetezedwa. Pokhudzana ndi chithandizo cha zinc phosphate, njira ya iron phosphate ndi jinirally yotsika mtengo komanso yosavuta kukwaniritsa The phosphate wosanjikiza nthawi zambiri amalemera pakati pa 0.3-1.0g/m2.

Zinc phosphate

Njira ya zinc phosphate imayika wosanjikiza wokulirapo kuposa chitsulo cha phosphating, ndipo imamangika motetezedwa ku maziko. Zinc phosphate imakhalanso ndi zinthu zabwino kwambiri zomatira, ngakhale nthawi zina zimatha kuchepetsa kukhulupirika kwa makina (kusinthasintha kwa dongosolo. Zinc phosphate imapereka chitetezo chabwino kwambiri cha dzimbiri ndipo imalimbikitsidwa kuti isagwiritsidwe ntchito ndi chitsulo ndi zitsulo zotayidwa kuti ziwonetsedwe m'makalasi apamwamba kwambiri. Zinc phosphate atha kugwiritsidwa ntchito popopera kapena kuviika.
Zinc phosphating nthawi zambiri imakhala yokwera mtengo kuposa chitsulo phosphating, chifukwa cha kukwera mtengo kwa mbewu komanso ntchito yodula.

Chromate

Mndandanda wa machitidwe osiyanasiyana amapezeka mkati mwa gulu la chromate la mankhwala. Dongosolo losankhidwa limadalira mtundu wazitsulo kapena aloyi, mtundu wa chinthu (njira yopangira: casr, extruded etc.) ndipo ndithudi, zofunikira za khalidwe.
Chithandizo cha Chromate chikhoza kugawidwa m'magulu angapo:

Yotsirizira ndiyo njira yodziwika kwambiri yochizira chisanadze chisanadze kupaka ufa. Kuchuluka kwa masitepe pakuchitapo kanthu kumatha kusiyanasiyana, kutengera kuchuluka kwa katunduyo kuti akonzekere chromating, mwachitsanzo ndi pickling, neut.ralization etc. ndi zotsatira rinsing masitepe.