Plating yog dab tsi?

Plating yog dab tsi?
Plating yog txheej txheej txheej uas npog saum npoo ntawm lub workpiece uas dhau los ua cov khoom siv nrog cov yeeb yaj kiab hlau nyias. Muaj kwv yees peb lub hom phiaj rau plating.

• Txhim kho cov khoom zoo nkauj

Nws yog plating los txhim kho lub ntsej muag zoo nkauj, piv txwv li, tsim kom muaj qhov ci ntsa iab, xim zoo nkauj, thiab lwm yam. Tus neeg sawv cev yog kub plating.

• Txhim kho corrosion kuj

Qee cov ntaub ntawv xws li hlau feem ntau siv rau hauv cov khoom lag luam yog qhov ua rau xeb. Yog li ntawd, qhov saum npoo yog them nrog corrosion-resistant hlau, uas yog plating kom tsis txhob xeb. Galvanizing, thiab lwm yam yog nws cov neeg sawv cev.

• Txhim kho kev ua haujlwm

Ntxiv nrog rau kev kho kom zoo nkauj thiab kev tiv thaiv corrosion, plating tuaj yeem ntxiv ntau yam haujlwm. Piv txwv li, nyob rau hauv plating kom optimize qhov haum ntawm solder hu ua solder wettability, nickel plating yog ua, los yog ib tug alloy ntawm tooj liab thiab tin yog siv rau plating. Tsis tas li ntawd, tseem muaj plating los txhim kho zawv zawg zog lossis txhim kho hluav taws xob conductivity.

Plating thiab hom
Hauv kev siv tshuab, electroplating yog txoj kev plating ntau tshaj plaws thiab siv los ua cov ntaub ntawv zoo nkauj, xeb-pov thawj, hnav-resistant, thiab conductive.

Electroplating yog feem ntau txoj kev plating thiab yog siv los ua cov ntaub ntawv zoo nkauj, xeb-pov thawj, hnav-resistant, thiab conductive. Muab cov hlau los ua plated thiab cov txheej txheej hlau rau hauv cov tshuaj uas muaj hlau ions, txuas cov hlau kom plated mus rau cathode, txuas cov txheej hlau rau lub anode, thiab dhau mus rau ib qho hluav taws xob ncaj qha. Raws li qhov tshwm sim, kev txo qis tshwm sim tshwm sim hauv cov tshuaj, thiab cov hlau txheej yog precipitated ntawm cov hlau nto ntawm lub anode.
Tus nqi ntawm cov hlau tso nyiaj hloov pauv nrog qhov ceev tam sim no, yog li lub thickness ntawm cov plating ua tsis sib xws nyob ntawm qhov zoo ntawm qhov. Tshwj xeeb, plating yog thicker nyob rau hauv protruding qhov chaw thiab thinner nyob rau hauv recessed qhov chaw. Lub plating thickness ntawm electroplating yuav txawv nyob ntawm qhov tam sim no thiab lub sij hawm dhau mus, yog li nws yog ib qho tsim nyog yuav tsum nrhiav cov plating thickness uas ua tau raws li lub hom phiaj rau txhua qhov plated.
Electroplating feem ntau suav nrog cov pawg hauv qab no.

kub plated
Kub yog ib tug hlau nrog zoo nkauj luster, tab sis yog kim. Yog li ntawd, tsuas yog qhov saum npoo ntawm cov khoom yog them nrog kub, thiab kub plating yog ua los txhim kho cov khoom zoo nkauj. Tsis tsuas yog kub zoo nkauj nyob rau hauv tsos, tab sis nws kuj yog tshuaj ruaj khov thiab yog li ntawd muaj zoo heev corrosion kuj. Nws kuj tseem siv tau los tiv thaiv xeb thiab txhim kho hluav taws xob conductivity.
nyiaj
Nyiaj kuj yog ib qho hlau uas muaj cov khoom zoo nkauj zoo li kub. Txawm li cas los xij, vim nws yooj yim oxidized, nws yog ib qho tsim nyog yuav tau ua kev kho mob kom tsis txhob muaj xim tom qab plating nyiaj. Vim nws cov conductivity siab, nws yog siv rau kev kho deg ntawm connector qhov chaw ntawm precision khoom, thiab lwm yam.
galvanized
Qhov no yog txoj kev siv ntau tshaj plaws los tiv thaiv xeb plating. Thaum galvanizing carbon steel qhov chaw, nws tiv thaiv corrosion ntawm cov hlau vim nws tus kheej-saving nyhuv ntawm cov hlau. Tom qab galvanizing, ua gloss galvanizing thiab trivalent chromate gloss kho los tiv thaiv zinc txheej.
chrome
Chrome plating yog ua los muab cov hniav plating glossy tiav. Tsis tas li ntawd, nws muaj zog hnav tsis kam thiab zoo heev corrosion kuj, yog li nws kuj yog siv nyob rau hauv mechanical qhov chaw nyob rau hauv industrial teb.

Electroless plating thiab hom
Hauv machining, electroless plating yog ib txoj kev plating uas tsis siv hluav taws xob.

Electroless plating yog ib txoj kev plating uas tsis siv hluav taws xob. Cov khoom yuav tsum tau plated yog immersed nyob rau hauv ib tug tov uas muaj hlau ions uas tsim lub txheej, thiaj li hais tias cov hlau ions raug txo los ua ib tug txheej. Txij li tsis tas yuav tsum muaj hluav taws xob, cov khoom siv tsis yog cov khoom siv xws li cov resin tuaj yeem raug plated. Nyob rau lub sijhawm no, txij li cov yeeb yaj kiab hlau tsim nyob rau saum npoo yog conductive, electroless plating qee zaum ua rau cov khoom tsis yog cov khoom siv los ua kom lawv cov conductive raws li pretreatment rau electroplating.

Nickel plating yog ib qho plating hauv electroless plating.

electroless npib tsib xee plating
Qhov no yog ib txoj kev plating tseem hu ua electroless nickel plating. Lub thickness ntawm txheej yog ruaj khov dua electrolytic npib tsib xee plating, tab sis qhov kub ntawm cov tshuaj plating yog siab dua, yog li koj yuav tsum tau them sai sai rau. Electroless npib tsib xee plating muaj kev hnav zoo heev thiab xeb kuj.

Lwm yam plating
Ntxiv nrog rau electroplating thiab electroless plating, kuj tseem muaj cov tshuaj hloov pauv tshuaj (dub oxide zaj duab xis), kev kho anodizing (txhuas oxide), kub-dip galvanizing, thiab lwm yam.

Kev kho tshuaj lom neeg (dub oxide zaj duab xis)
Siv tshuaj hloov pauv tshuaj kho mob thaum, piv txwv li, koj xav tau lub ntsej muag dub. Kuj hu ua blackening kev kho mob, ib tug hlau oxide zaj duab xis yog tsim. Lub thickness ntawm cov txheej yog nyias thiab ruaj khov, thiab nws tseem tuaj yeem siv rau ntawm qhov chaw nrog nruj me ntsis kam rau ua.
Anodizing (Aluminium oxide)
Cov txheej txheem ntawm kev quab yuam oxidizing saum npoo ntawm cov khoom siv txhuas kom tau lub txheej yog hu ua anodizing. High hardness thiab zoo heev corrosion kuj.
kub dip galvanized
Kub dip galvanizing yog ib txoj kev ntawm immersing qhov chaw nyob rau hauv ib tug rhuab thiab molten tov los tsim ib tug txheej rau saum npoo. Siv rau cov xov hlau, cov qauv, thiab lwm yam. Vim nws yog immersed nyob rau hauv molten zinc, cov nyhuv ntawm tshav kub yog ntau dua.