Feem ntau cov hluav taws xob terminals yuav tsum tau kho saum npoo, yog li -hu ua electroplating, ntawm ib sab, yog los tiv thaiv lub davhlau ya nyob twg lub caij nplooj ntoos hlav cov ntaub ntawv los ntawm corrosion; Ntawm qhov tod tes, nws yog txhawm rau txhim kho kev ua haujlwm ntawm lub davhlau ya nyob twg nto thiab tsim thiab tswj kev sib cuag ntawm cov terminals. Interface, tshwj xeeb tshaj yog kev tswj cov yeeb yaj kiab. Hauv lwm lo lus, nws ua rau nws yooj yim dua rau kev ua tiav hlau-rau- hlau sib cuag.
Feem ntau cov terminal reeds yog ua los ntawm tooj liab alloy, thiab lawv feem ntau corroded nyob rau hauv qhov kev pab cuam ib puag ncig, xws li oxidation thiab sulfide. Terminal plating yog cais cov reed ntawm ib puag ncig los tiv thaiv corrosion. Cov khoom siv plating, ntawm chav kawm, yuav tsis corrode, yam tsawg kawg hauv daim ntawv thov ib puag ncig.
Kev ua kom zoo ntawm lub davhlau ya nyob twg saum npoo kev ua haujlwm tuaj yeem ua tiav ob txoj hauv kev. Ib qho yog qhov tsim ntawm lub davhlau ya nyob twg los tsim thiab tswj lub davhlau ya nyob twg ruaj khov kev sib cuag; lwm qhov yog tsim kom muaj kev sib cuag hlau, uas yuav tsum tsis txhob muaj zaj duab xis nto thaum lub sij hawm ntxig. Tej zaum tawg.
The difference between the two forms of no film and film cracking is also the difference between precious metal plating and non-precious metal plating. Noble metal plating, such as gold, palladium, and their alloys, is inert and has no film itself. Therefore, for these surface treatments, metallic contact is "automatic".
Txhawm rau kom ntseeg tau tias qhov kev ua tau zoo ntawm lub davhlau ya nyob twg nto tsis cuam tshuam los ntawm lwm yam, xws li kev ua qias tuaj, substrate diffusion, terminal corrosion, thiab lwm yam. Tsis yog -hlau electroplating, tshwj xeeb tshaj yog tin thiab txhuas thiab lawv cov alloys, npog ib txheej. ntawm oxide zaj duab xis, tab sis thaum muab tso rau, cov oxide zaj duab xis yog yooj yim tawg, thiab ib tug metallic cheeb tsam yog tsim.
Tsis tas li ntawd, rau cov hlau uas tsis zoo adhesion, tooj liab puag feem ntau yog siv los txhim kho adhesion ua ntej electroplating; qhov conductivity ntawm raw cov ntaub ntawv xws li hlau thiab phosphor tooj liab feem ntau yog qis dua 20 feem pua, uas tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua rau qis -impedance connectors. , Yog li tom qab txheej txheej saum npoo yog electroplated nrog siab - conductivity hlau xws li kub, nws impedance yuav raug txo.
