Chii chinonzi Phosphate coatings

Phosphate machira anoshandiswa kuwedzera corrosion resistance uye kugadzirisa poda yeupfu adhesion, uye anoshandiswa pazvikamu zvesimbi zvekudzivirira ngura, lubricity, kana senheyo yeanotevera machira kana pendi.Inoshanda sechitubu chekushandura umo dilute solution yephosphoric acid uye phosphate salt inoiswa kuburikidza nekupfapfaidza kana kunyudzwa uye kemikari inopindirana. nepamusoro pechikamu chiri kuputirwa kuti chiite musara weinsoluble, crystalline phosphates.Magetsi ekushandurwa kwePhosphate anogonawo kushandiswa paaluminium, zinc, cadmium, sirivheri netin.
Mhando mikuru yefosfate coatings ndeye manganese, iron uye zinc.Manganese phosphates anoshandiswa ese ari maviri ekudzivirira ngura uye lubricity uye anoshandiswa chete nekunyudza. Iron phosphates inowanzo shandiswa sechigadziko chekuwedzera machira kana pendi uye inoshandiswa nekunyudzwa kana nekupfapfaidza. Zinc phosphates inoshandiswa kuita ngura proofing (P&O), lubricant base layer, uye sependi/coating base uye inogona zvakare kuiswa nekunyudza kana kupfapfaidza.
A phosphate coating is a transition layer mune nomweral ruremekedzo. Haina kuonda kupfuura simbi zhinji asi yakanyanya kukora pane mabhachi. Iine kupisa kwekuwedzera zvinhu izvo zviri pakati nepakati pakati peiyo yesimbi uye coating. Mhedzisiro yacho ndeyokuti phosphate layers inogona kutsvedza shanduko yakangoerekana yavapo mukuwedzera kwekupisa kwaizovepo pakati pesimbi nependi. Phosphate coatings ine porous uye inogona kubata iyo yekupfeka. Pakurapa, pende inosimbisa, ichivharira mukati me phosphate pores. Kunamatira kunowedzera zvakanyanya.

STAGE PHOSPHATE SPRAY PROCESS

1. Yakasanganiswa kuchenesa uye phosphating. 1.0 kusvika 1.5 maminetsi pa100 degrees F kusvika 150 degrees F.
2. Mvura simbura 1/2 miniti
3. Chromic acid sukurudza kana deionized mvura sukurudza. 1/2 miniti.