Yuav ua li cas xaiv cov kev daws teeb meem rau electroplating? Dab tsi yog qhov sib txawv ntawm cov kev daws teeb meem sib txawv?

Kev xaiv daws thiab qhov sib txawv hauv cov txheej txheem electroplating

Electroplating yog txheej txheem uas tso cov txheej txheej hlau lossis alloy ntawm cov hlau lossis tsis yog} hlau los ntawm electrolysis. Nws yog dav siv nyob rau hauv kev zoo nkauj, corrosion - tiv taus, hnav {{{3} {resistant, thiab kev siv cov ntawv thov. Cov tshuaj electroplating daws (tseem hu ua cov txheej txheem da dej) yog cov txheej txheem tseem ceeb ntawm cov khoom siv hluav taws xob, thiab kev ua haujlwm ntawm cov txheej txheej tso tawm. Cov kev daws teeb meem sib txawv ntawm cov kev daws teeb meem sib txawv, cov khoom sib txawv, thiab kev xaiv tsim nyog hauv kev ua tib zoo xav txog kev txiav txim siab.

I. Cov Cheebtsam theem ntawm Electrople daws teeb meem

Cov kev daws teeb meem hluav taws xob feem ntau muaj cov hauv qab no:

1. Cov ntsev: Qhov sib xyaw ua ke uas muab cov hlau ions rau txheej, nickel cydoride, thiab potassium kub cyanide.

2. Cov ntsev uas ua tau: Qhov sib xyaw ua ke uas ua rau muaj kev cuam tshuam ntawm kev daws, xws li sodium sulfate thiab poov tshuaj tshuaj.

3. Tsis yog: ib qho sib xyaw ua ke uas ruaj khov ph ntawm cov kev daws teeb meem, xws li boric acid thiab acetic acid.

4. Ntxiv: qhov sib xyaw ua ke uas txhim kho cov ntsiab, du, thiab lwm yam khoom ntawm cov txheej txheem tso nyiaj, xws li cov neeg sawv cev, thiab cov neeg sawv cev ntub dej.

5. Cov neeg sawv cev sib tw: Cov qauv ruaj khov nrog cov hlau ions, txhim kho qhov zoo ntawm txheej, xws li cyanide thiab citrate.

Ii. Cov hauv paus ntsiab lus ntawm electroplating kev xaiv

Thaum xaiv cov tshuaj elotlating, cov hauv qab no yuav tsum tau txiav txim siab:

1. TXHEEJ TXHEEM Cov cai yuav tsum muaj: xaiv cov kev daws tsim nyog raws li cov ntaub ntawv npaj txheej txheej (piv txwv li, corrosion {{}} tiv, nrhiav tau, thiab lwm yam). Piv txwv li, kev kho kom zoo nkauj tas li yuav tsum muaj graphing siab thiab cov kev sib xyaw, thaum ua haujlwm cov txheej txheem ua ntej hnav tsis kam lossis kev ua haujlwm.

2. Substrate Cov Khoom: Sib txawv substrates (piv txwv li, tus hlau, tooj liab, txhuas, yas thiab lwm yam. Piv txwv li, Aluminium yuav tsum muaj pretreatment ua ntej electroplating, thaum cov yas yuav tsum tau kho tshwj xeeb.

3. Ib puag ncig thiab kev txiav txim siab nyab xeeb thiab kev daws teeb meem electroplating (piv txwv li, cov tshuaj cyanide) yog cov tshuaj lom thiab yuav tsum tau siv nyob rau hauv ib puag ncig ib puag ncig thiab kev nyab xeeb. Nyob rau hauv xyoo tsis ntev los no, cyanide -} dawb electroplogplating cov kev daws teeb meem tau ua nrov ntau.

4. Tus nqi thiab efficiency: yam xws li daws tau muaj pes tsawg leeg, siab, thiab qhov kub thiab qhov kub ntawm electroplating. Kev lag luam ua tau zoo yuav tsum yog qhov zoo tshaj plaws thaum lub rooj sib tham ua tau zoo.

III. Cov kev daws teeb meem electroplating thiab lawv qhov sib txawv

1. Tooj plating cov ntsiab lus

-} acidic tooj liab plating: raws li ntawm tooj liab sulfate, nws yog tsim rau kev kho kom zoo nkauj thiab bisecoating. Nws cov txiaj ntsig yog tus nqi qis thiab tus nqi xa nyiaj ceev, tab sis cov txiaj ntsig tsis muaj qhov ci me me.

- Alkaline Tooj Liab plating: Raws li ntawm tooj liab cyanide, nws yog tsim rau plating ua workpieces. Nws cov txiaj ntsig yog cov txheej txheej sib xyaw thiab cov nplaum muaj zog, tab sis cyanide yog cov tshuaj lom thiab yuav tsum muaj kev tiv thaiv ib puag ncig ib puag ncig.

- pyrophosphathate tooj liab plating: raws li tooj liab pyrophosphate, nws yog qhov tsim nyog rau kev thov basecoating rau cov plastics. Nws cov txiaj ntsig yog ib puag ncig kev phooj ywg thiab cov txheej zoo, tab sis kev daws tau muaj kev ruaj khov tsis zoo.

2. Nickel Plating Cov Ntsiab

-}} Watt Nickel Plating: Raws li Nickel sulfate, nws yog dav siv rau kev ua kom zoo nkauj thiab ua haujlwm. Nws cov txiaj ntsig yog cov txheej siab hardness thiab zoo corrosion tsis kam, tab sis cov kev daws teeb meem yuav tsum yog tswj hwm nruj me ntsis.

{{0- Nickel Sulfamate: Cov txheej txheem no siv Nickel sulfamate ua tus thawj ntsev thiab yog haum rau high {1} ntxhov siab pleev xim. Nws cov txiaj ntsig yog qhov muaj kev ntxhov siab hauv kev ntxhov siab thiab zoo heev, tab sis nws yog kim.

- Black Black Nickel Plating: Txoj kev no siv Nickel Sulfate thiab Zinc Sulfate thiab zuaj rau cov khaub noom zoo nkauj. Nws cov txiaj ntsig yog cov xim txheej xim, tab sis kev daws teeb meem ruaj khov yog ib qho tsis zoo.

3. Chrome plating

{{0 {0} Zoo nkauj} Cov txheej txheem zoo nkauj chrome acid li thawj cov ntsev thiab haum rau high} zoo nkauj zoo nkauj ci ntsa iab. Nws cov txiaj ntsig yog lub siab tawv hardness thiab coj cov khoom siv tsis kam, tab sis hexavalisent chromium yog muaj kev phom sij ib puag ncig thiab ua rau ib puag ncig cov pa phem.

-} tawv chrome plating: Cov txheej txheem no siv chromic acid li thawj ntsev thiab haum rau cov khoom siv ua haujlwm ua haujlwm. Nws cov txiaj ntsig yog lub siab txheej tuab thiab hnav zoo tiv taus, tab sis cov txheej txheem yog cov nyom thiab tus nqi yog qhov siab.

{{0-}} Kev Sib Tw Chromium plating: Cov txheej txheem no siv cov ntsev ua haujlwm txawv li cov ntsev thiab yog ib qho kev hloov kho tus phooj ywg. Nws cov txiaj ntsig yog cov tshuaj lom tsawg thiab zoo ib puag ncig kev ua tau zoo, tab sis cov txheej txheej ua tau zoo me ntsis rau hoxaRent chromium.

4. Zinc Plating Cov Ntshav

{{0- acidic Zinc Plating: Siv zinc sulfate raws li thawj ntsev thiab yog tsim nyog rau qes- corrosion txheej. Cov txiaj ntsig muaj xws li tso tawm sai sai sai thiab tus nqi qis, tab sis txheej ua pov thawj kev tsis zoo corrosion tsis kam.

- Alkaline Zinc Plating: Siv zinc cyanide yog qhov tsim nyog rau hyposion- Resistant txheej. Cov txiaj ntsig zoo suav nrog cov txheej txheem uniform thiab muaj zog adhesion, tab sis cyanide yog muaj kuab heev.

-} Cyanide {}}} Dawb Zinc Plating: Siv Citrate lossis Citring Perring lossis Citring Perring lossis Citring Perring lossis yog ib qho kev hloov pauv ib puag ncig. Cov txiaj ntsig suav nrog kev ua phooj ywg ib puag ncig thiab kev ruaj khov ua haujlwm, tab sis yuav tsum muaj cov tshuaj tswj kev daws teeb meem siab.

5. Kub plating daws

-} Cyanide Kub Plating: Siv Potassium Kub Raws Li Cov Ntsev Tseem Ceeb thiab haum rau kev ua kom zoo nkauj hluav taws xob thiab cov txheej txheem hniav zoo nkauj. Cov txiaj ntsig muaj suav nrog cov kev ua siab zoo thiab zoo heev corrosion, tab sis cyanide yog cov tshuaj lom heev.

-} Cyanide {}}} dawb kub plating: siv cov roj av tseem ceeb ua ib qho kev hloov pauv. Cov txiaj ntsig suav nrog kev ua phooj ywg ib puag ncig thiab kev ruaj khov ua haujlwm, tab sis tus nqi yog siab dua.

IV. Kev Tswj Xyuas Hluav Taws Xob Hluav Taws Xob thiab Txij Nkawm

1. Kev daws cov tshuaj tswj tau tswj: Tsis tu ncua kev daws teeb meem hlau ion concentration, pH, thiab cov ntsiab lus ntxiv kom ntseeg tau tias nws tseem nyob hauv kev ua haujlwm.

2. Kev siv tshuaj thiab ua kom huv: tshem tawm impurities los ntawm kev daws los ntawm kev daws teeb meem, ua haujlwm rau cov roj carbon adsorption, thiab lwm txoj hauv kev los tiv thaiv cov teeb tsa tsis xws luag.

3. Cov ntsuas kub thiab tam sim no ceev: kho qhov ntsuas kub thiab tam sim no tam sim no raws li cov txheej txheem kom ntseeg tau.

4. Kev tiv thaiv ib puag ncig thiab kev ntsuas kev nyab xeeb: nruj me ntsis tswj cov kev daws teeb meem lom thiab cov chaw khib nyiab kom ua rau tus neeg teb xov tooj muaj kev nyab xeeb.

V. Cov Ntsiab Lus

The selection of electroplating solutions is a critical step in the electroplating process and requires comprehensive consideration based on factors such as coating performance requirements, substrate properties, and environmental safety. Cov kev daws teeb meem sib txawv sib txawv sib txawv nyob rau hauv composition, kev ua tau zoo, thiab cov ntawv thov ntau. Kev xaiv kom tsim nyog thiab kev tshawb fawb txog kev tawm tswv yim ntawm cov kev daws teeb meem yog qhov tseem ceeb rau kev ua kom muaj hluav taws xob. Nrog nce kev tiv thaiv ib puag ncig, cyanide {}} dawb, thiab siab} Kev daws teeb meem hluav taws xob yuav dhau los ua kev daws teeb meem yav tom ntej.