Cov ncauj lus kom ntxaws piav txog PCB electroplating txheej txheem!

PCBs yog qhov tsis tseem ceeb ntawm cov khoom siv hluav taws xob niaj hnub, muab lub platform mounting rau cov hluav taws xob sib txuas ntawm cov hluav taws xob. Txhawm rau kom ntseeg tau tias kev ua tau zoo heev thiab corrosion tsis kam, electroplating yog qhov tseem ceeb ntawm cov kauj ruam kev tsim qauv pcb. Electroplating tsis tsuas yog txhim kho PCB saum npoo kev ua haujlwm thiab txhim kho solderability, tab sis kuj tseem tiv thaiv tus PCB los ntawm ib puag ncig ib puag ncig.

Acid Poob → Puv Kho → Acid Dhuav → Cov Khoom Siv Acid DIPs → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Plawv Roj Av Rinse → Cov Khoom Siv Acid Rinse → Cov Khoom Siv Acid Rinse → Cov Ntaub Ntawv Sab Hauv Estrich Acid Dip → Cov Plating Acid Dip → Cov Plating Epycling → 2-3 theem dej ntshiab yaug → kom qhuav

PCB electroplating txheej txheem ntws

I. Acid ntsw

1. Muaj nuj nqi thiab lub hom phiaj

Tshem tawm cov oxides thiab ua haujlwm rau pawg thawj coj. Cov concentration feem ntau yog feem ntau 5%, qee zaum khaws cia nyob ib ncig ntawm 10%. Nws yog ib qho tseem ceeb kom tiv thaiv noo noo los ntawm nkag mus da dej, uas tuaj yeem ua rau tsis muaj cov sulfuric acid qib.

Lub sijhawm acid dipping yuav tsum tsis txhob ntev dhau los tiv thaiv kev ua kom ntev.

Tom qab ib lub sijhawm siv, yog tias cov kev daws teeb meem acid ua plawg lossis cov ntsiab lus tooj liab dhau, nws yuav tsum tau hloov kom tsis txhob muaj kev paug ntawm cov tooj liab plating tank thiab cov thawj coj.

Siv CP qib sulfuric acid.

Ii. Tag nrho -} board tooj liab plating

1. Muaj nuj nqi thiab lub hom phiaj:

Kev tiv thaiv cov txheej nyias nyias ntawm cov neeg tooj liab tshiab los ntawm oxidation thiab acid nres, thiab txo nws txoj kev xav rau cov qib ntawm electroplating.

Txheej txheem tsis pub rau tag nrho - board muaj tooj liab sulfate thiab sulfuric acid li cov khoom tseem ceeb. Ib qho siab - kua qaub, qis} Cov mis nyuj qis tau muab tso rau qhov tob thiab sib sib zog nqus plating thiab qhov tob me.

Lub sulfuric acid cov ntsiab lus feem ntau 180 g / l, nrog qee qhov ncav cuag 240 g / l.

Lub tooj liab sulfate cov ntsiab lus feem ntau yog ib puag ncig 75 g / l. Ib txoj lw tus nqi ntawm chloride ions tau ntxiv rau da dej raws li ib tug ntas. Cov neeg sawv cev ntawm cov neeg sawv cev thiab cov neeg sawv cev ua haujlwm ua haujlwm ua ke los tsim cov nyhuv glossy.

Lub bronzing tus neeg sawv cev noj tshuaj lossis lub ntim pib yog feem ntau 3 -} 5 ml / l. Tus Rollmzing tus sawv cev ntxiv feem ntau yog feem ntau raws li cov xuab moos hauv kiloampere lossis cov txiaj ntsig tshwj xeeb.

2. Tam sim no rau tag nrho - board electroplating feem ntau tau muab xam raws li 2 a / sq Decimeter ntau sib npaug los ntawm thaj chaw plating. Rau tag nrho - board electroplating, qhov no yog pawg ntev × board dav × 2 × 2 A / dm². Cov tooj liab da dej kub yog tswj tau nyob rau hauv chav tsev kub, feem ntau tsis tshaj 32 degree, thiab yog ib txwm tswj ntawm 22 degree. Yog li ntawd, nyob rau lub caij ntuj sov, vim muaj kev kub ntxhov, nws raug pom zoo kom txhim kho lub tshuab cua txias rau ntawm cov tooj liab da dej.

3. Cov Txheej Txheem Saib Xyuas

Rupenish tooj tooj tooj liab Polish txhua hnub raws li Kiloampere {}}}}} ntawm tus nqi ntawm 100-150 ml / KL / KAH.

Txheeb lub taub lim dej rau kev ua haujlwm kom zoo thiab txi.

Ntxuav cov Cathode tus pas nrig nrog cov ntaub huv si, noo txhua txhua 2-3 teev.

Tshawb xyuas tus tooj liab sulfate (ib zaug ib as thiv), sulfuric acid (ib zaug ib lim tiam), thiab chloride ion (ob zaug hauv lub lim tiam tooj liab. Kho cov Polish cov ntsiab lus siv cov cuab yeej siv hluav taws xob ua haujlwm thiab rov ua dua cov khoom siv raw kom sai.

Ntxuav lub anode coj tus pas nrig ib asthiv. Txuas cov hluav taws xob sib txuas ntawm ob qho kawg ntawm lub tank, rov ua lub pob tawb tooj liab rau hauv titanium pob tawb sai sai, thiab ua cov electrolysis ntawm 0.2-0.5 ASD rau 6-8 teev.

Tshawb xyuas cov anode Titanium pob tawb hnab txhua lub hlis rau kev puas tsuaj thiab hloov txhua yam uas tau hloov tam sim ntawd.

Kuj kuaj xyuas hauv qab ntawm anode Titanium pob tawb rau anode sloe tsub zuj zuj. Yog tias muaj ib qho, ntxuav nws tam sim ntawd.

Tsis tu ncua lim nrog ib tug carbon tseem ceeb rau 6 - 8 teev thaum ib txhij ua tau cov electrolysis tshiab los tshem tawm cov impurities.

Txhua rau lub hlis lossis yog li ntawd, txiav txim siab seb kev kho mob loj (ua kom muaj cov roj carbon ntau) yog qhov tsim nyog, nyob ntawm qib kev ua kua paug.

Hloov lub lim keeb hauv lub taub lim twj txhua ob lub lis piam.

4. Cov txheej txheem daws teeb meem

Tshem tawm cov anode, khoob nws, thiab ntxuav cov anodic zaj duab xis ntawm anode nto. Tso nws rau hauv lub thoob muaj cov tooj liab anode. Yaug nrog dej thiab qhuav, tom qab ntawd tso nws rau hauv lub pob tawb titanium thiab muab tso rau hauv tank acid rau tom qab siv.

Soak lub anode Titanium pob tawb thiab anode lub hnab hauv 10% kev daws teeb meem alkaline rau 6-8 teev. Yaug thiab qhuav, ces tsau rau hauv 5% dilute sulfuric acid. Yaug thiab qhuav, tom qab ntawd teem ib sab.

Hloov chaw da dej hauv lub tank spare, ntxiv 1-3 ml / l ntawm 30% hydrogen peroxide, thiab pib ua cua sov. Thaum qhov kub tau nce mus txog kwv yees li 65 degree, do nrog huab cua. Tswj qhov kub rau 2-4 teev.

Kaw cov huab cua nplawm thiab maj mam zom cov hmoov hlau ua kom cov roj carbon ua haujlwm ntawm tus nqi ntawm 3-5 g / l. Thaum yaj, do nrog cua. Txuas ntxiv cua sov . 2-4 teev;

Kaw cov huab cua agitation, nce qhov kub thiab tso cai rau cov pa roj carbon kom maj mam daws mus rau hauv qab ntawm lub tank.

Thaum qhov kub thiab txias rau ib puag ncig 40 degree, lim da dej ua kua los txog 10μm pp lim keeb nrog lim hmoov rau hauv cov khoom siv huv. Tig rau saum huab cua agitation, ntxiv anode, thiab dai cov phaj electrolytic. Ua qis - Cov electrolysis tam sim no ntawm qhov ceev tam sim no ntawm 0.2-0.5 ASD rau 6-8 teev.

Tom qab kev ntsuas kev ntsuas, kho cov sulfuric acid, tooj liab sulfate, thiab chloride ion qib hauv lub tank mus rau hauv kev ua haujlwm ib txwm muaj. Ntxiv kev ua kom muaj cua daj cua dub raws li cov txiaj ntsig ntawm kev sim ntawm tes ntawm tes.

Thaum lub phaj electrolytic muaj cov xim tsis sib xws, nres electrolysis thiab txuas ntxiv rau cov duab sib xyaw ntawm 1-2 teev kom txog thaum muaj kev sib tw, ntom nti, thiab cov duab dub zoo nkauj, thiab cov duab dub zoo nkauj.

Ntsuam plating.

5. Lub pob tooj liab anode tooj liab muaj 0.3-0.6% phosphorus. Lub hom phiaj tseem ceeb yog txhawm rau txo qhov kev ua kom tsawg kawg nkaus thiab txo qis lub tooj liab hmoov.

6. Thaum ntxiv cov neeg sawv cev ntxiv, xws li tooj liab sulfate lossis sulfuric acid, ua qhov qis- hloov hluav taws xob tam sim no tom qab. Kev ceev faj ceeb toom thaum ntxiv cov kua qaub sulfuric. Cov nyiaj ntau (ntau dua 10 litres) yuav tsum tau ntxiv qeeb thiab hauv ob peb feem. Txwv tsis pub, da dej kub yuav overheat ua kom zoo dua, nrawm rau qhov decomposatition ntawm cov photocatalyst thiab paug cov da dej.

7. Kev saib xyuas tshwj xeeb yuav tsum tau ua thaum ntxiv chloride ions. Vim yog cov ntsiab lus chloride tsawg (30-90 ppm), khob yog qhov tseem ceeb} m ntawm hydrochloric acid muaj kwv yees li 385 ppm ntawm chloride ions.

8. Cov tshuaj ntxiv ntxiv cov qauv piv txwv:

Tooj liab sulfate (kg)=(75 - x) × tank volot (l) / 1000

Sulfuric acid (l)=(10%- x) g / l × tank ntim (l)

Lossis (l) {= ({180 - x) g / l × tank ntim (l) / 1840

Hydrochloric acid (mL)=(60 - x) ppm × tank ntim (l) / 385

III. Acidreasing

1. Lub Hom Phiaj thiab Muaj nuj nqi: Tshem tawm cov yeeb yaj kiab oxide thiab cov nplaum los ntawm lub cig corper ntawm lub cim tooj liab thiab tus qauv tooj liab lossis npib tooj liab lossis npib tsib xee.

2. Nco ntsoov siv cov acidic degreaser ntawm no. Vim tias cov qauv inks tsis yog alkali - tiv taus cov qauv, tsuas yog acidic degreasers yuav tsum tau siv ua ntej qauv electroplating.

3. Lub sijhawm kev tsim khoom, tsuas yog ua rau lub sijhawm ua kom pom kev zoo thiab lub sijhawm kho mob yuav tsum tau tswj hwm. Txoj kev xav txog kev mob siab rau 10%, thiab lub sijhawm kho mob yuav tsum tsis pub dhau 6 feeb. Lub sijhawm kho tau ntev yuav tsis muaj kev cuam tshuam uas tsis zoo. Cov tshuaj tov da dej yuav tsum tau siv thiab hloov ntawm tus nqi ntawm 15 m2 / l ntawm kev daws teeb meem kev ua haujlwm, nrog 0.5-0.8 L ntxiv rau 100 m2 ntawm kev daws teeb meem.

IV. Microetching

1. Lub Hom Phiaj thiab Functions thiab roughts thiab rougens lub tooj liab saum npoo ntawm lub voj voog, kom muaj advertion ntawm tooj hluav taws xob thiab tus loj tooj liab.

2. Sodium Persulfate feem ntau siv los ua microetchant, muab ib qho kev ruaj khov thiab tsis muaj kev sib cav sib ceg thiab cov dej ua kom zoo. Cov sodium persulfate concentration yog feem ntau tswj nyob rau ntawm ib ncig ntawm 60 g / l, lub sijhawm kho mob ntawm ib ncig 20 vib nas this, thiab tus nqi ntawm cov tshuaj ntxiv yog 3-4 kg ib 100 m2. Cov ntsiab lus tooj liab yuav tsum tau tswj hwm ntawm 20 g / l. Lwm yam kev saib xyuas thiab lub tank hloov pauv yog tib yam li tooj liab microetching.

5. Acid ntsw

1. Lub Hom Phiaj thiab Muaj nuj nqi: tshem tawm cov oxides los ntawm pawg thawj coj thiab ua kom cov board nto. Cov concentration feem ntau yog feem ntau 5%, qee zaum khaws cia nyob ib ncig ntawm 10%. Nws yog ib qho tseem ceeb kom tiv thaiv noo noo los ntawm nkag mus da dej, uas tuaj yeem ua rau tsis muaj cov lus tsis ruaj khov.

2. Zam kev ua kom ntev dua los tiv thaiv kev tswj hwm saum npoo oxidation. Yog tias cov kev daws teeb meem acid ua plawg los yog cov ntsiab lus tooj liab dhau tom qab siv tas mus li, nws yuav tsum tau hloov kom zam kom tsis txhob muaj kev paug ntawm cov tooj liab plating tank thiab txiag nto.

3. CP qib sulfuric acid yuav tsum siv.

6. Qauv tooj liab plating

1. Lub Hom Phiaj thiab Ua Haujlwm: Kom tau raws li qhov ntsuas ntsuas tam sim no ntawm txhua Circuit Court, txhua lub qhov taub thiab lub qhov taub plating txheej yuav tsum mus txog ib qho tuab tom qab plating. Lub hom phiaj ntawm Circuit Court tooj liab plating yog kom sai thicken lub qhov tooj liab thiab Circuit Court rau ib qho tuab.

2. Txhua kauj ruam yog tib yam li rau tag nrho- board electroplating.

VII. Hluav Taws Xob Tin

1. Lub Hom Phiaj thiab Ua Haujlwm: Lub hom phiaj ntawm qauv Electroplating ntshiab can yog siv cov ntshiab ntshiab tsuas yog cov hlau tiv thaiv los tiv thaiv lub Circuit Court los ntawm Etching.

2. Tus da dej yog feem ntau tsim los ntawm stannous sulfate, sulfuric acid, thiab ntxiv. Cov ntsiab lus sulfate stannate yog tswj hwm ntawm kwv yees li 35 g / l, thiab sulfuric acid cov ntsiab lus raug tswj hwm ntawm kwv yees li 10%. Tin plating ntxiv cov quav ntxiv feem ntau yog txuas ntxiv raws li Kaus pib ecekampere}}} teev lossis cov kev coj ua tshwj xeeb. Lub electroplating tam sim no feem ntau tau muab xam raws li 1.5 amps / square durimeter khij los ntawm thaj chaw plating ntawm pawg thawj coj saib. Tus Tin da dej yog tswj tau nyob rau hauv chav tsev kub, feem ntau tsis tshaj 30 degrees Celsius thiab feem ntau tswj hwm ntawm 22 degrees Celsius. Yog li ntawd, nyob rau lub caij ntuj sov, vim muaj qhov kub, nws raug nquahu kom cov da dej tin yuav nruab nrog txias thiab ntsuas kub.

3. Cov Txheej Txheem Saib Xyuas

Rov qab ua tiav plating plating ntxiv txhua txhua hnub raws ntawm iloampere {}} teev (Kah). Txheeb lub taub lim dej rau kev ua haujlwm kom zoo thiab txi. Ntxuav cov Cathode tus pas nrig nrog cov ntaub huv si, noo txhua txhua 2-3 teev.

Soj ntsuam lub tinn tank rau stannous sulfate (ib hlis ib zaug) thiab sulfuric acid (ib hlis ib zaug) txhua asthiv. Kho cov plhaw plating ntxiv cov ntsiab lus los ntawm kev sim xov tooj ntawm tes thiab rov ua dua tshiab muaj feem cuam tshuam cov khoom siv raw sai sai.

Ntxuav cov anode coj tus pas nrig thiab cov hluav taws xob txuas ntawm ob qho kawg ntawm lub tank txhua lub lim piam.

Ua cov electrolysis ntawm ib qho qis tam sim no ntawm 0.2-0.5 ASD rau 6-8 teev txhua lub limtiam.

Tshawb xyuas lub hnab anode txhua hli rau kev puas tsuaj thiab hloov cov khoom puas sai. Kos rau hauv qab ntawm lub hnab rau anyode slime thiab ntxuav nws tam sim ntawd.

Siv cov pa roj carbon tseem ceeb rau kev lim txuas ntxiv rau 6 {}} 8 teev txhua hli, ua kom ib leeg electrolysis kom tshem tawm impurities.

Txhua rau lub hlis, txiav txim siab seb kev kho mob loj (ua kom tau txais cov tshuaj carbon kom tsim nyog raws li kev sib kis ntawm lub tank tov.

Hloov lub lim keeb ntawm lub taub lim dej txhua ob lub lis piam.

4. Cov txheej txheem daws teeb meem

Tshem tawm cov anode thiab anode lub hnab. Ntxuav lub anode nto nrog tus tooj liab txhuam, yaug nrog dej, thiab yaug kom qhuav. Tso lub hnab anode nyob hauv Tank acid rau kev siv tom qab.

Soak lub hnab Anode hauv 10% alkali daws rau 6-8 teev, yaug nrog dej, thiab tom qab ntawd soak nyob rau hauv 5% dilute sulfuric acid. Yaug nrog dej, yaug qhuav, thiab teem ib sab.

Hloov chaw da dej da dej rau lub tank spare thiab maj mam zom pes tsawg carbon hmoov ntawm tus nqi ntawm 3 {{}} 5 g / l. Ib zaug yaj tag, cia nws rau adsorb rau 4-6 teev. Lim cov tshuaj tov da dej siv 10μm pp lim keeb nrog lim pab hmoov rau hauv cov khoom siv huv. Tso lub anode nyob rau hauv lub tank ua haujlwm thiab ntim cov phaj electrolytic. Ua cov hluav taws xob tsawg tam sim no ntawm qhov ceev tam sim no ntawm 0.2-0.5 ASD rau 6-8 teev.

Tom qab kev xam xam, kho cov sulfuric acid thiab cov qib sulfate hauv lub tank rau hauv kev ua haujlwm ib txwm muaj. Ntxiv TNNING cov khoom ntxiv raws li cov txiaj ntsig ntawm kev sim ntawm tes ntawm tes.

Thaum cov ntawv electrolytic muaj cov xim sib txawv, nres electrolysis.

Ntsuam plating.

5. Thaum ntxiv cov tshuaj ntxiv, xws li stannous sulfate lossis sulfuric acid, qhov tsawg {{1} Cov roj ntsha tsis tau tam sim no yuav tsum tau ua tom qab ntxiv. Yuav tsum ceev faj kev nyab xeeb yuav tsum tau ua thaum ntxiv cov sulfuric acid. Cov nyiaj ntau (ntau dua 10 litres) yuav tsum tau ntxiv qeeb thiab hauv ntau qhov. Txwv tsis pub, qhov da dej kub yuav overheat, muaj cov sulfate oxidation yuav tshwm sim, thiab tus da dej yuav nrawm nrawm.

6. Kev muab cov mis rau ntxiv cov tshuaj ntxiv:

Stannous sulfate (kg)=(40 -} • Zov da dej (liv) / 1000

Sulfuric acid (liv)=(10%- x) g / l × cov chav da dej (liv)

Lossis (litres)=(180 - • x) g / l × cov chav da dej (1840

VIII. Hluav Taws Xob Hluav Taws Xob

Kub Electroplating yog muab faib ua nyuaj kub (kub alloy) thiab dej kub (kub ntshiab) cov txheej txheem. Tus da dej muaj pes tsawg leeg ntawm cov kub nyuaj thiab muag kub plating yog qhov tseem ceeb tib yam, tshwj tsis yog tias qhov nyuaj da dej xws li npib tsib xee, cobalt, lossis hlau.

1. Lub Hom Phiaj thiab Ua Haujlwm: Kub, raws li cov khoom siv uas muaj nqis, muaj cov khoom lag luam tsis kam, thiab kev sib chwv tau zoo heev.

2. Tam sim no, thawj txoj kev rau kub plating ntawm cov laug cam hluav taws xob yog cov citric acid kub da dej, uas tau siv dav dav thiab yooj yim ntawm kev ua haujlwm.

3. Cov ntsiab lus kub hauv dej yuav tsum tau tswj hwm ntawm kwv yees li 1 g / l, qhov kub ntawm 45℃B, thiab qhov ceev ceev ntawm 1 ASD.

4. Cov khoom ntxiv tseem ceeb nrog rau acidic thiab alkaline ntsev rau pr kev hloov kho rau pH kev hloov kho, plating kub ntxiv, thiab cov ntsev kub.

5. Txhawm rau tiv thaiv tus da dej kub, chav dalic did yuav tsum tau ntxiv ua ntej da dej kom txo qis kev sib kis thiab tswj nws cov ruaj khov.

6. Tom qab electroplating, lub phaj kub yuav tsum tau muab yaug nrog dej ntshiab li ib qho dej rov qab yaug. Qhov no kuj tseem tuaj yeem siv tau los ua kom tau cov kub kub evaporation qib. Ua raws li cov dej rov qab yaug, cov tshuaj uas raug tshem tawm ntawm cov dej ntshiab uas yuav tsum tau ua. Sai li sai tau tom qab yaug, lub phaj kub yuav tsum muab tso rau hauv 10 g / l alkali daws los tiv thaiv oxidation.

7. Tus da dej kub yuav tsum tau siv platinum -} х coated titanium mesh ua anode. Raug 316 Stainless hlau yooj yim yaj, hlau, thiab chromium, ua rau kev ntxuav hniav dawb, thiab ua plating ntawm cov plated kub.

8. Cov organic paug nyob rau hauv lub da dej kub yuav tsum tau lim nrog cov tub ntxhais muaj peev xwm, thiab tus nqi tsim nyog ntawm cov nyiaj ntsuab ntxiv yuav tsum tau ntxiv.

Ix. Nickel Plating

1. Lub Hom Phiaj thiab Ua Haujlwm Nickel Txheej ua cov txheej txheem tooj liab thiab cov kab uas tiv thaiv kab mob ntawm cov kub thiab tooj liab, uas tuaj yeem cuam tshuam lub neej ntawm lub rooj tsavxwm. Tsis tas li ntawd, txheej npib tsib xee kuj tseem nce cov tshuab zog ntawm cov txheej kub uas yog qhov pib.

2. Txheej txheem tsis pub rau tag nrho- Vaj Huam Sib Luag tooj

Nickel plating ntxiv cov khoom xyaw feem ntau yog txuas ntxiv raws li kaus}}}}} teev (Kah) lossis raws cov txiaj ntsig ntau lawm. Qhov kev sib ntxiv yog kwv yees li 200 ml / KAH.

Qhov tam sim no rau cov qauv Nickel plating yog feem ntau tau muab xam los ntawm sib tshooj 2 A / DM² los ntawm thaj chaw plating ntawm lub rooj tsavxwm.

Lub npib tsib xee da dej kub yog tswj tau ntawm 40 thiab 55 degree, feem ntau nyob ib ncig 50 degree. Yog li ntawd, kev tswj cua kub thiab ntsuas kub yuav tsum tau nruab.

3. Cov Txheej Txheem Saib Xyuas

Nickel plating ntxiv ntxiv yuav tsum tau ntxiv txhua hnub raws KAH.

Txheeb lub taub lim dej rau kev ua haujlwm kom zoo thiab txi.

Ntxuav cov Cathode tus pas nrig nrog cov ntaub huv si, noo txhua txhua 2-3 teev.

Txheeb xyuas cov npib tsib xee (nickel sulfate (Nickel Sulfamate) (ib zaug ib lim tiam (ib zaug ib lim tiam), thiab boric acid (ib zaug) cov ntsiab lus hauv cov tooj liab da dej tsis tu ncua. Kho cov npe npib tsib xee ntxiv cov ntsiab lus los ntawm cov cuab yeej ua haujlwm ntawm tes thiab rov ua dua cov ntaub ntawv raw.

Ntxuav cov anode coj tus pas nrig thiab da dej txhua lub lim tiam. Txuas cov hluav taws xob txuas rau ntawm ob qho kawg, rov ua dua lub npe npib tsib xee hauv lub titanium pob tawb sai sai, thiab ua cov electrolysis ntawm 0.2-0.5 ASD rau 6-8 teev.

Hli, tshawb xyuas anode Titanium hnab rau kev puas tsuaj thiab hloov nws sai. Kuj kuaj xyuas hauv qab ntawm anode titanium pob tawb rau anlode slimabcimulation thiab ntxuav nws tam sim ntawd.

Tsis tu ncua lim nrog ib tug carbon tseem ceeb rau 6 - 8 teev thaum ua cov electrolysis kom tshem tawm impurities.

Txhua rau lub hlis lossis yog li ntawd, txiav txim siab seb kev kho mob loj (ua kom tau cov roj carbon ntau) yog qhov tsim nyog raws qib kev sib kis hauv cov dej da dej.

Hloov lub lim keeb hauv lub taub lim twj txhua ob lub lis piam.

4. Cov txheej txheem daws teeb meem

Tshem tawm cov anode, ncuav tawm ntawm anode, ntxuav nws, thiab muab tso rau hauv lub thoob uas muaj lub rooj zaum npib tsib xee. Yaug lub npib tsib xee uas muaj micro -}}} inechat rau roughen saum npoo kom txog thaum nws yog tusyees liab. Yaug nrog dej thiab qhuav, tom qab ntawd tso nws rau hauv lub pob tawb titanium thiab muab tso rau hauv tank acid rau tom qab siv.

Soak lub anode Titanium pob tawb thiab anode lub hnab hauv 10% kev daws teeb meem alkaline rau 6-8 teev. Yaug nrog dej thiab yaug kom qhuav. Tom qab ntawd soak nyob rau hauv 5% dilute sulfuric acid thiab yaug nrog dej thiab qhuav. Teem ib sab.

Hloov chaw da dej hauv lub tank spare, ntxiv 1-3 ml / l ntawm 30% hydrogen peroxide, thiab pib ua cua sov. Thaum qhov kub tau nce mus txog kwv yees li 65 degree, pib agitation nrog huab cua. Tswj qhov ntsuas kub thiab agitate rau 2-4 teev.

Tua cov kev ntxhov siab. Do thiab maj mam yaj cov khaub ncaws carbon kom qhib rau hauv da dej ntawm tus nqi ntawm 3-5 g / l. Thaum ua tag tag, do nrog huab cua, thiab tswj qhov kub rau 2-4 teev.

Kaw cov huab cua thiab do, ces ua kom sov da dej kom tso cai rau cov quav roj carbon kom maj mam ua kom maj mam nyob hauv qab da dej.

Thaum cov tee ntsuas kub txog li 40 degree, lim dej da dej txog 10μm pp lim keeb nrog lim pab hmoov rau hauv kev ua haujlwm ntxuav kom huv. Do nrog huab cua, txuas cov phaj electrolytic, thiab ua cov qes qis ntawm cov hluav taws xob tam sim no ntawm 0.2-0.5 ASD rau 6-8 teev.

Tom qab kev ntsuas, kho cov npib tsib xee lossis nickel sulfate, Nickel sulfamate, Nickel Chloride, thiab boric acid qib hauv chav da dej rau hauv kev ua haujlwm ib txwm muaj.

Ntxiv Nickel plating Ntxiv ntxiv ntxiv raws li cov txiaj ntsig ntawm kev sim ntawm tes.

Thaum lub phaj electrolytic muaj cov xim sib xyaw, nres electrolysis thiab txuas ntxiv cov hluav taws xob ntawm 1-1.5 ASD rau 10-20 feeb los qhib lub anode.

Ntsuam plating.

5. Thaum ntxiv cov quav ntxiv, yog tias ntxiv cov khoom loj xws li Nickel sulfate, Nickel sulfamate, lossis Nickel sloride, lossis necel} Kev tsis muaj electrolysis ntxiv tom qab. Thaum ntxiv cov boric acid, tso qhov nyiaj ntxiv rau hauv ib lub hnab me me thiab dai rau hauv lub hnab tsib leeg npib tsib caug ceg; Tsis txhob ntxiv nws ncaj qha rau lub tank.

6. Tom qab Nickel plating, nws raug nquahu kom ntxiv cov dej rov ua dua rau yaug. Pib lub tank nrog dej ntshiab kom rov ua kom cov kua dej hauv lub npib tsib xee lub taub dej uas evaporates vim cua sov. Ua raws li cov dej ua haujlwm yaug nrog kev ua haujlwm theem nrab rinse.

7. Kev tshuaj ntxiv cov txheej txheem sib ntxiv

Nickel Sulfate (kg)=(280 - x) × till tank ntim (l) / 1000

Nickel chloride (kg)=(45 -} x) × tank ntim (l) / 1000

Boric acid (kg)=(45 -} x) × tank ntim (l) / 1000