Yuav Ua Li Cas Xaiv Yas Nqus Plating Hlau thiab Txheej rau Electroplating ntawm Hluav Taws Kub Kub Tubes

Yuav Ua Li Cas Xaiv Yas Nqus Plating Hlau thiab Txheej rau Electroplating ntawm Hluav Taws Kub Kub Tubes

Txawm hais tias cov yas tuaj yeem hloov cov hlau hauv ntau zaus, nws pom tseeb tsis muaj qhov zoo nkauj ntawm cov hlau. Yog li ntawd, nws yog ib qho tsim nyog yuav tau siv qee txoj kev los pleev xim rau saum npoo ntawm cov yas nrog txheej hlau (txhuas, zinc, tooj liab, nyiaj, kub, chromium, thiab lwm yam). Ib txoj hauv kev yog siv cov txheej txheem zoo ib yam li cov tshuaj plating thiab electroplating, thiab lwm yam yog ua kom lub tshuab nqus tsev twj tso kua mis ncaj qha rau ntawm cov yas saum npoo - uas yog, kom yaj cov hlau hauv lub tshuab nqus tsev, tso rau hauv molecular lossis atomic daim ntawv ntawm qhov chaw. yas los ua 5-10 μ Cov yeeb yaj kiab hlau ntawm m.

Nqus txau ntawm cov hlau yuav tsum muaj kev sib koom tes zoo nrog cov yas nto primer, thiab cov thickness ntawm primer feem ntau yog 10-20 μ m. Lub luag haujlwm tseem ceeb yog tiv thaiv cov dej tawm, cov kuab tshuaj organic, cov khoom siv yas, thiab lwm yam hauv cov yas los ntawm kev cuam tshuam cov hlau adhesion. Nws yuav tsum tau hais tias lub txheej muaj hardness siab, lub primer muaj peev xwm los hloov cov yas tsis xws luag, muab ib tug du thiab tiaj tus nto los pab txhawb lub nqus plating kev ua tau zoo, thiab ruaj khov ua raws li cov yas substrate thiab plated hlau. Feem ntau, ob chav ntsuas kub kho polyurethane thiab epoxy coatings, uas tsis tshua muaj kub ci amino coatings, thiab thermoplastic acrylic txheej raug xaiv.

Cov hlau txheej yog nquag oxidation thiab darkening nyob rau hauv cov huab cua, thiab kuj tseem muaj kev hloov maj mam xws li nqus tsev vacuum, yog li ib txheej ntxiv ntawm 5-10 yuav tsum tau siv μ Tiv thaiv topcoat rau m. Cov kev xav tau ntawm cov xim pleev xim yog: pob tshab, dej zoo heev, hnav tsis kam, thiab huab cua tsis kam, tsis ua haujlwm ntawm cov hlau txheej, thiab ruaj khov rau cov txheej txheem hlau. Acrylate varnish, polyester varnish, polyurethane kua roj vanish, thiab lwm yam tuaj yeem siv tau. Thaum cov primer yog cov thermoplastic acrylic txheej, kom tiv thaiv lub topcoat hnyav los ntawm corroding lub primer los ntawm txheej tsis xws luag, tsis muaj zog hnyav hnyav thiab ceev kom qhuav topcoats yuav xaiv, xws li acrylic hloov alkyd varnish, polyvinyl butyral kua roj vanish, polyurethane roj, thiab lwm yam.

Cov txheej txheem ntws ntawm lub tshuab nqus hlau plating yog: kev kho cov yas nto (purification, activation) → primer application → drying → nqus hlau plating → topcoat application → drying.

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