Kev Taw Qhia Txog Kev Ua Haujlwm ntawm Cov Hlau Txheej Txheem ntawm Cov Thaiv Chaw Nres Tsheb

Cov haujlwm ntawm cov txheej txheem tuaj yeem muab faib ua peb pawg: kev tiv thaiv, kev ua haujlwm hluav taws xob, thiab kev ua haujlwm kho tshuab / txheej txheem.
1. Kev tiv thaiv (kev tiv thaiv corrosion thiab durability)
Qhov no yog qhov tseem ceeb tshaj plaws thiab tseem ceeb tshaj plaws ntawm kev siv lub tshuab.
- Tiv thaiv kom cov substrate oxidation thiab xeb: Tooj liab tuaj yeem tsim cov tooj liab oxide lossis tooj liab sulfide thaum raug rau huab cua noo lossis cov chaw muaj sulfur. Cov tshuaj no muaj cov conductivity tsis zoo thiab tuaj yeem tsim ib txheej insulating, ua rau muaj kev tiv thaiv kev sib cuag sai sai, uas yuav ua rau cua sov lossis txawm tias lub voj voog tsis ua haujlwm. Lub txheej ua haujlwm ua ib qho "barrier," cais cov substrate ntawm cov chaw sab nraud.
- Txhim kho kev hloov pauv ib puag ncig: Rau ntau qhov chaw siv sib txawv (xws li qhov kub thiab txias thiab av noo, tshuaj tsuag ntsev, thiab cov pa roj tshuaj lom neeg hauv kev lag luam), kev xaiv cov txheej txheem tsim nyog tuaj yeem txhim kho qhov kev tiv thaiv xeb ntawm cov davhlau ya nyob twg. Piv txwv li, nickel lossis chromium plating ua haujlwm tau zoo heev hauv cov chaw ua haujlwm hnyav.

2. Kev ua haujlwm hluav taws xob (ua kom muaj kev ua tau zoo)
- Kev ruaj khov thiab txo qhov tsis kam tiv tauj: Muab qhov chaw tsis kam: cov txheej txheem xws li tin thiab nyiaj muaj kev coj ua zoo thiab tsis yooj yim rau oxidation, muab txoj kev ruaj khov thiab tsis kam rau tam sim no.
- Rhuav cov zaj duab xis oxide rwb thaiv tsev: Ntau cov txheej txheej (tshwj xeeb tshaj yog tin thiab tin alloys) yog cov mos mos. Thaum cov terminals raug crimped lossis ntsia hlau raug nruj, cov txheej txheej tuaj yeem dhau los ua qhov me me deformation thiab ntws, tho qhov hlau lossis cov zaj duab xis oxide ntawm qhov chaw sib txuas, ua rau muaj kev sib cuag ncaj qha ntawm hlau rau hlau (piv txwv li, "kev sib cuag hlau"), uas txo qhov kev tiv thaiv kev sib cuag.
- Tswj kev ruaj khov hluav taws xob mus sij hawm ntev: Cov txheej txheem zoo tuaj yeem khaws cia lawv qhov xwm txheej ntawm qhov chaw dhau sijhawm, tiv thaiv kev tawm tsam los ntawm kev xeb thiab ua kom muaj kev sib txuas hluav taws xob ruaj khov thoob plaws lub neej ntawm cov khoom.

Kev Ua Haujlwm Txog Tshuab thiab Kev Ua Haujlwm
Txhim Kho Kev Sib Txuas: Rau cov davhlau ya nyob twg uas xav tau kev sib txuas (xws li PCB terminals), kev plating yog qhov tseem ceeb heev. Tin thiab tin-lead alloy plating muaj kev sib txuas zoo heev, ua kom ntseeg tau tias cov pob qij txha sib txuas ceev, muaj zog, thiab txhim khu kev qha. Kev sib txuas ntawm tooj liab ntshiab poob qis heev tom qab oxidation ntawm qhov chaw, thiab plating muab qhov chaw sib txuas ntev.
Txhim Kho Kev Tiv Thaiv Kev Hnav: Cov davhlau ya nyob twg feem ntau ua haujlwm xws li ntsaws thiab tshem tawm lossis ntsia hlau nruj thaum siv. Cov txheej tawv xws li nickel lossis chrome plating tuaj yeem ua rau qhov nyuaj ntawm qhov chaw, txo qhov hnav los ntawm kev ntxig dua, thiab ntev lub neej kev pabcuam. Lawv kuj tiv thaiv kev raug cov khoom siv corrosive hauv qab vim yog kev hnav.
Txo Kev Sib Txhuam Ntawm Qhov Chaw Sib Cuag: Qee cov platings (xws li tin) muaj cov yam ntxwv uas ua rau nws tus kheej lubricating, ua rau cov ntsia hlau nruj dua, torque ruaj khov dua, thiab txo kev sib txhuam ntawm cov hlau.