Kutembenuza Kuphimba Kwachitsulo Chomata

Ma iron phosphates kapena zotsukira-coater zimapanga zokutira zochepa kapena zosawoneka zosinthika pamalo a zinki. Mizere yambiri yomaliza ya multimetal imagwiritsa ntchito ma phosphates achitsulo osinthidwa omwe amapereka kuyeretsa, ndikusiya ma microchemical etch pazitsulo za zinc kuti apereke mphamvu zomatira.

Matauni ambiri ndi mayiko tsopano ali ndi malire pa zinki PPMs, kukakamiza omaliza zitsulo kuti apereke chithandizo chamankhwala aliwonse omwe magawo a zinc amakonzedwa.

Chophimba chotembenuza cha zinc phosphate ndiye, mwina, chotchingira chapamwamba kwambiri chomwe chingapangidwe pamtunda wa malata. Kuti apange zokutira za zinc phosphate pa malata, othandizira mathamangitsidwe apadera amafunikira kuti atsegule pamwamba mokwanira kuti alandire zokutira za zinc phosphate. Zovala izi zimapangidwa ndi zochita za mankhwala osamba pazida zam'mwamba. Ma crystalline zinc phosphate kwenikweni "wakula" pamtunda woyera. Mugawo lachisanu ndi chiwiri la zinc phosphating, magawo osiyanasiyana ndi awa:

1. Zoyeretsa zamchere.
2. Zoyeretsa zamchere.
3. Kutsuka madzi otentha.
4. Zinc phosphate processing solution.
5. Madzi ozizira kutsuka.
6. Positi chithandizo (mwina chromium kapena nonchromium).
7. Deionized madzi muzimutsuka.

Gawo la magawo asanu ndi limodzi lidzathetsa siteji 1, ndipo gawo la magawo asanu lidzachotsa magawo 1 ndi 7. Mu njira yopopera mphamvu yogwiritsira ntchito, zigawo zomwe ziyenera kuphimbidwa zimayimitsidwa mumsewu pamene yankho likuponyedwa kuchokera ku thanki yosungiramo mphamvu. ndi kupopera pansi pa kukakamizidwa pa mbali. Njira yothetsera kupaka imayendetsedwa mosalekeza.Mu njira yomiza yogwiritsira ntchito, zigawo zomwe ziyenera kuphimbidwa pambuyo potsukidwa zimangomizidwa mu njira yothetsera phosphating yomwe ili mu thanki yachitsulo chosapanga dzimbiri.Njira yopukutira m'manja yogwiritsira ntchito ili ndi ntchito yochepa. kutembenuka ❖ kuyanika teknoloji.Zovala za Phosphate nthawi zambiri zimagwiritsidwa ntchito pogwiritsa ntchito magawo asanu, asanu ndi limodzi, kapena asanu ndi awiri. The phosphatesolution imakhala mkati mwa kutentha kwa 100 mpaka 160 ° F (38 mpaka 71 ° C) popopera; 120 mpaka 200 ° F (49 mpaka 93 ° C) kuti amizidwe; kapena kutentha kwa chipinda popukuta pamanja. Kulemera kwa zokutira kwa zinki phosphate kuyenera kukhala 150 mpaka 300 mg / sq. ft.A processing time of 30 mpaka 60 masekondi ndi kupopera ndi 1 kwa 5 mphindi ndi kumizidwa ndi mwachizolowezi.Phosphating solutions ali ndi ndende ya 4 mpaka 6% ndi voliyumu ndipo amagwiritsidwa ntchito pa spray pres sure of 5 mpaka 10 psi. The zinc phosphate zokutira mwina ndi imodzi mwazopaka utoto wabwino kwambiri pazitsulo zamalatisi. Njira yothetsera chromium phosphate pokonza sipanga zokutira zoyenera pazitsulo zokhala ndi malata.