Kodi zokutira za Phosphate ndi chiyani

Zovala za phosphate amagwiritsidwa ntchito kuonjezera kukana dzimbiri ndi kusintha utoto wa ufa adhesion, ndipo amagwiritsidwa ntchito pazigawo zachitsulo kukana dzimbiri, lubricity, kapena ngati maziko a zokutira zotsatizana kapena kupenta. Imakhala ngati zokutira kutembenuka komwe njira yochepetsera ya phosphoric acid ndi mchere wa phosphate imagwiritsidwa ntchito popopera mbewu mankhwalawa kapena kumizidwa ndikumakhudzidwa ndi mankhwala. ndi pamwamba pa gawolo kuti apange wosanjikiza wosasungunuka, crystalline phosphates. Phosphate kutembenuka zokutira angagwiritsidwe ntchito pa aluminiyamu, zinki, cadmium, siliva ndi malata.
Mitundu yayikulu ya zokutira za mankwala ndi manganese, chitsulo ndi zinc.Manganese phosphates amagwiritsidwa ntchito polimbana ndi dzimbiri komanso mafuta ndipo amagwiritsidwa ntchito pomiza. Ma iron phosphates amagwiritsidwa ntchito ngati maziko opangira zokutira kapena kupenta ndipo amagwiritsidwa ntchito pomiza kapena kupopera mbewu mankhwalawa. Zinc phosphates amagwiritsidwa ntchito potsimikizira dzimbiri (P&O), mafuta oyambira osanjikiza, komanso ngati maziko opaka utoto ndipo amathanso kugwiritsidwa ntchito pomiza kapena kupopera mbewu mankhwalawa.
Chophimba cha phosphate ndi gawo losinthira mu zisanu ndi ziwiriral ulemu. Ndiwocheperako kuposa zitsulo zambiri koma wandiweyani kuposa zokutira. Lili ndi mphamvu zowonjezera kutentha zomwe zimakhala zapakati pakati pa zitsulo ndi zokutira. Chotsatira chake ndi chakuti zigawo za phosphate zimatha kusintha kusintha kwadzidzidzi pakukulitsa kutentha komwe kukanakhalapo pakati pa chitsulo ndi utoto. Zovala za phosphate zimakhala ndi porous ndipo zimatha kuyamwa zokutira. Pakuchiritsa, utotowo umalimba, kutsekera mu pores phosphate. Kumamatira kumakulitsidwa kwambiri.

STAGE PHOSPHATE NJIRA YOPHUNZITSIRA

1. Kuphatikiza kuyeretsa ndi phosphating. 1.0 mpaka 1.5 mphindi pa 100 F mpaka 150 F.
2. Madzi muzimutsuka 1/2 mphindi
3. Chromic acid muzimutsuka kapena kutsuka madzi a deionized. 1/2 mphindi.