Passivation Mfundo ya Fasteners ndi Malangizo Abwino Kwambiri Ochizira Antirust

Pambuyo pazitsulo zowonongeka ndi oxidizing sing'anga, kuchuluka kwa dzimbiri kwachitsulo kumakhala kotsika kwambiri kuposa chitsulo choyambirira chosagwiritsidwa ntchito, chomwe chimatchedwa passivation ya chitsulo.

Nthawi zambiri, passivation imatembenuza chitsulo chogwira ntchito kukhala chopanda mphamvu kudzera muzochita zamakina a passivation solution, kuti tipewe zinthu zowononga zakunja kuti zisagwirizane ndi chitsulo pamwamba ndikukwaniritsa cholinga chotalikitsa nthawi ya dzimbiri yachitsulo. (N'chifukwa chake mankhwala n'zosavuta dzimbiri pamaso passivation, koma osati pambuyo passivation. Mwachitsanzo, chitsulo posachedwapa kupasuka mu kuchepetsa nitric asidi, koma chodabwitsa Kutha mu anaikira nitric asidi pafupifupi kwathunthu amasiya; Aluminiyamu ndi wosakhazikika mu kuchepetsa nitric asidi, koma zotengera za aluminiyamu zitha kugwiritsidwa ntchito kusungirako asidi wa nitric.

Mfundo ya passivation

Mfundo ya passivation ikhoza kufotokozedwa ndi chiphunzitso chochepa cha filimu, ndiko kuti, chimaganiziridwa kuti passivation ndi chifukwa cha kugwirizana pakati pa zitsulo ndi oxidizing sing'anga, zomwe zidzatulutsa filimu yopyapyala kwambiri (pafupifupi 1nm), wandiweyani, yophimbidwa bwino. pamwamba pazitsulo, zomwe zingathe kumangirizidwa mwamphamvu pamwamba pazitsulo. Kanemayu amakhala ngati gawo lodziyimira pawokha, nthawi zambiri amakhala ndi mpweya ndi zitsulo.

Ikhoza kulekanitsa zitsulo kuchokera ku zowonongeka zowonongeka, ndikuletsa zitsulo kuti zisagwirizane ndi zowonongeka zowonongeka, kotero kuti chitsulocho chimasiya kusungunuka ndikupanga dziko lopanda pake kuti likwaniritse cholinga choletsa dzimbiri ndi dzimbiri.

Makhalidwe ndi ubwino wa passivation:

Zosapanga dzimbiri passivation njira sasintha kukula, mtundu ndi maonekedwe a zomangira; Palibe filimu yamafuta yomwe imalumikizidwa, ndipo kukana kwa dzimbiri kuli bwino komanso kokhazikika (mankhwala oletsa kutupa ndi njira yabwino kwambiri yosinthira mankhwala odana ndi dzimbiri kuti alowerere mafuta odana ndi dzimbiri). Palibe chifukwa cha zida zapadera ndi zinthu zokhwima zogwirira ntchito, zotengera zochepa za pulasitiki kapena akasinja osapanga dzimbiri zimafunikira, ndipo mtengo wake ndi wochepa (2/3 wocheperako pakutulutsa kwakunja); Ntchitoyi ndi yosavuta, yomwe imakwaniritsa zofunikira zamabizinesi, ndikuwonetsetsa kuti aliyense atha kuchita, aliyense atha kuchita, ndipo amatha kuchita nthawi iliyonse. Ingomizani zomangira mu Senyuan mtundu wa zitsulo zosapanga dzimbiri passivation yankho kwa mphindi 30 kutentha firiji.

Kukonda:

Pambuyo wononga ndi passivated, wandiweyani passivation filimu ndi Kuphunzira bwino adzapangidwa pamwamba pa wononga wononga, zomwe zingachititse wononga dzimbiri zosagwira, mpaka maola oposa 500 a mchere kutsitsi mayeso.

Screw passivation process:

Choyamba tsitsani zomangirazo - zitsukani ndi madzi oyenda-ziyambitsani-zitsukani ndi madzi oyenda-zidutse (kwa mphindi zopitilira 30) - zitsukani ndi madzi oyenda-zitsuka ndi madzi a ultrapure-ziwumitsa ndikuzinyamula.