Nqus plating khoom Substrate thiab zaj duab xis txhim kho countermeasures:

Nqus plating khoom Substrate thiab zaj duab xis txhim kho countermeasures:

(1) Txhim kho cov kev kho degreasing thiab decontamination. Yog hais tias nws yog ultrasonic tu, nws yuav tsum tsom mus rau lub degreasing muaj nuj nqi thiab xyuas kom meej qhov zoo ntawm cov tshuaj degreasing; yog tias nws yuav tsum tau so ntawm tes, nws tuaj yeem txiav txim siab los so nrog calcium carbonate hmoov ua ntej ntxuav.

(2) Txhim kho lub pre-plating ci, yog tias muaj kev tso cai, qhov kub ntawm lub substrate tuaj yeem ncav cuag 300 degree, nws yog qhov zoo dua, qhov kub thiab txias yog ntau tshaj 20 feeb, thiab cov dej vapor thiab roj vapor ntawm lub substrate tuaj yeem yuav volatilized kom ntau li ntau tau. * Ceeb toom: qhov kub siab dua, qhov muaj peev xwm adsorption ntau dua ntawm cov substrate, thiab nws kuj yooj yim rau nqus plua plav. Yog li ntawd, qhov huv ntawm lub tshuab nqus tsev yuav tsum tau txhim kho. Txwv tsis pub, yuav muaj plua plav txuas rau hauv substrate ua ntej plating, uas yuav cuam tshuam rau cov yeeb yaj kiab lub zog ntxiv rau lwm yam tsis xws luag. (Cov tshuaj desorption kub ntawm cov dej vapor ntawm lub substrate hauv lub tshuab nqus tsev yog siab dua 260 degree). Txawm li cas los xij, tsis yog txhua qhov yuav tsum tau ci ntawm qhov kub thiab txias. Qee cov khoom siv nitrate muaj qhov kub thiab txias, tab sis lub zog ntawm zaj duab xis tsis siab, thiab yuav muaj xim xim. Qhov no muaj kev sib raug zoo dua nrog kev ntxhov siab thiab cov khoom siv thermal txuam.

(iii) Thaum muaj kev tso cai, chav tsev tau nruab nrog lub condenser (PLOYCOLD), uas tsis yog tsuas yog ua kom lub tshuab nqus tsev twj nrawm, tab sis kuj pab tshem tawm cov dej vapor thiab roj thiab roj los ntawm lub substrate.

(iv) Txhim kho lub tshuab nqus tsev vapor deposition. Rau lub tshuab txheej saum toj 1 meter, qhov pib nqus ntawm vapor deposition yuav tsum siab tshaj 3 * 10-3Pa. Lub tshuab txheej loj dua, qhov siab dua qhov pib nqus ntawm vapor deposition.

Vacuum Electroplating Equipment Substrate thiab Film Combination

Feem ntau, hauv cov yeeb yaj kiab los tiv thaiv, qhov no yog qhov laj thawj tseem ceeb rau qhov tsis muaj zog ntawm zaj duab xis. Txij li qhov chaw ntawm lub substrate yuav inevitably muaj ib co teeb meem impurities txuas rau saum npoo thaum lub sij hawm kho qhov muag txias ua hauj lwm thiab tu txheej txheem, thiab lub nto ntawm lub substrate yuav yeej ib txwm muaj ib co kev puas tsuaj khaubncaws sab nraud povtseg vim cov nyhuv ntawm optical txias ua hauj lwm, thiab impurities (xws li. Raws li dej vapor) uas nkag mus rau hauv cov txheej txheem kev puas tsuaj, roj vapor, ntxuav kua, so kua, polishing hmoov, thiab lwm yam, ntawm cov dej vapor yog qhov tseem ceeb), nws yog qhov nyuaj rau tshem tawm los ntawm txoj kev zoo tib yam, tshwj xeeb tshaj yog rau cov substrates nrog. zoo hydrophilicity thiab muaj zog adsorption. Thaum cov khoom siv zaj duab xis molecules sib sau ua ke ntawm cov impurities, nws cuam tshuam rau adhesion ntawm zaj duab xis txheej, uas kuj cuam tshuam rau lub zog ntawm zaj duab xis.

Tsis tas li ntawd, yog tias qhov hydrophilicity ntawm lub substrate tsis zoo thiab lub zog adsorption tsis zoo, qhov adsorption rau cov txheej txheem zaj duab xis kuj tsis zoo, uas tseem yuav cuam tshuam rau lub zog ntawm zaj duab xis.

Cov tshuaj lom neeg ruaj khov ntawm cov khoom siv nitrate tsis zoo, thiab qhov chaw ntawm lub substrate tau raug corroded thaum lub sij hawm kev ncig hauv cov txheej txheem ua ntej, tsim cov txheej txheem corrosion los yog txheej txheej hydrolysis (tej zaum hauv zos thiab nyias nyias). Thaum cov zaj duab xis yog plated ntawm corrosion txheej los yog hydrolysis txheej, nws adsorption tsis zoo, thiab zaj duab xis firmness tsis zoo.

Muaj cov av, roj me me, grey me ntsis, drool me ntsis, thiab lwm yam nyob rau ntawm qhov chaw ntawm lub substrate, thiab lub zos zaj duab xis txheej yog adhered tsis zoo, ua rau lub zos zaj duab xis firmness tsis zoo.

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