PCB corrosion yog tshwm sim los ntawm ntau yam sib txawv, xws li:

* Atmospheric corrosion

* Localized corrosion

* hluav taws xob corrosion

* Electrolytic corrosion

* Electrolytic dendrite tsim

* Kev tiv thaiv corrosion

* Intergranular corrosion

Circuit board corrosion tuaj yeem ua rau muaj kev phom sij heev rau cov ntawv luam tawm, thiab thaum muaj ntau qhov laj thawj rau PCB corrosion, muaj ntau txoj hauv kev los ntxuav lawv siv cov khoom siv hauv tsev xws li baking soda thiab compressed cua.

Kev ceev faj kuj tuaj yeem raug coj los xyuas kom meej tias PCB corrosion tsis tshwm sim yav tom ntej.

Dab tsi ua rau PCB corrosion?

Circuit board corrosion kuj tuaj yeem ua rau puas tsuaj rau PCB, yog li ua rau nws tsis muaj txiaj ntsig. Qhov corrosion no tuaj yeem tshwm sim los ntawm ntau yam ua rau. Nws yog txheej txheem oxidation uas tshwm sim thaum cov pa oxygen ua ke nrog cov hlau thiab ua rau xeb thiab tawg.

Atmospheric corrosion

Atmospheric corrosion, feem ntau hom PCB corrosion, cuam tshuam cov hlau raug ya raws, uas nyob rau hauv lem exposes nws mus rau oxygen. Kev sib xyaw ua ke ntawm cov ntsiab lus no ua rau muaj kev cuam tshuam uas cov hlau ions txuas nrog oxygen atoms los ua oxides.

Atmospheric corrosion tshwm sim feem ntau ntawm cov rooj sib txoos tooj liab. Txawm hais tias tooj liab khaws nws cov khoom siv kho tshuab txawm tias thaum corroded, nws tsis khaws nws cov hluav taws xob conductivity.

Hauv zos corrosion

Kev xeb hauv zos zoo ib yam li txhua hom kev xeb, tshwj tsis yog tias nws feem ntau cuam tshuam rau thaj chaw txwv lossis thaj chaw me me. Qhov no corrosion kuj muaj xws li filamentous corrosion, crevice corrosion thiab pitting corrosion.

Hluav taws xob corrosion

Hom corrosion no tshwm sim nyob rau ntawm qhov chaw ntawm ntau yam hlau thiab electrolytes, qhov twg cov hlau tsis muaj corrosion-resistant corrodes sai dua li lub hauv paus hlau uas nws raug.

Electrolytic corrosion kuj

Electrolytic corrosion tshwm sim thaum lub dendrite loj hlob vim muaj cov kab sib cuag. Qhov kev nce no tshwm sim thaum cov dej tsis huv ionic nkag mus rau qhov hluav taws xob ntawm ob qhov kab. Hloov tawm cov hlau sawb ua rau luv luv Circuit Court.

Electrolytic dendrite tsim

Electrolytic dendrite tsim tshwm sim thaum muaj ion paug hauv dej. Qhov kev deformation no yuav ua rau cov kab tooj liab uas nyob ib sab nrog qhov sib txawv ntawm qhov sib txawv kom loj hlob cov hlau strips, uas yuav ua rau muaj qhov luv luv ntawm cov kab.

Micro corrosion

Fretting yog tshwm sim los ntawm kev tsis tu ncua tig tawm lub tinning hloov. Qhov kev txav no ua rau kev ua haujlwm so uas thaum kawg tshem tawm cov oxide txheej ntawm qhov chaw. Thaum qhov no tshwm sim, txheej hauv qab nws oxidizes thiab tsim cov xeb ntau dhau uas cuam tshuam rau kev ua haujlwm ntawm qhov hloov.

Intergranular xeb

Qhov kawg corrosion no cuam tshuam nrog cov tshuaj nyob rau hauv cov qoob loo ciam teb ntawm cov kab tooj liab, thiab corrosion tshwm sim vim hais tias cov lis ciam teb yog ntau raug rau corrosion vim lawv cov ntsiab lus impurity siab dua.

Yuav ua li cas tshem tawm corrosion ntawm PCB?

Nyob rau tib lub sijhawm, ntau tshaj li qhov corrosion tuaj yeem ua rau ntawm koj lub PCB. Av, plua plav thiab av ntawm txhua yam yooj yim nkag mus rau hauv koj cov khoom siv hluav taws xob. Kev ntxuav lawv tuaj yeem pab tiv thaiv corrosion. Txawm li cas los xij, yog tias koj pom tias PCB tau corroded, koj tuaj yeem kawm paub yuav ua li cas tshem tawm cov corrosion thiab siv cov hauv qab no kom tsis txhob muaj kev puas tsuaj mus tas li.

Siv cov cua compressed

Compressed cua yog ib qho cuab yeej siv rau kev tu hluav taws xob. Koj tuaj yeem siv cov cua compressed los ntawm kev tso cov pulses luv mus rau sab hauv ntawm lub qhov cua. Txoj kev ntxuav tu no tau pom zoo rau kev saib xyuas hluav taws xob niaj hnub, yog li yog tias koj xav tiv thaiv corrosion, koj yuav tsum tau qhib lub tshuab hluav taws xob thiab ntaus lawv ntawm qhov chaw.

Siv ci dej qab zib

Baking soda yog cov khoom muaj txiaj ntsig zoo rau kev tshem tawm PCB corrosion. Tsis tas li ntawd xwb, tab sis koj lub chav ua noj tej zaum twb muaj baking soda. Vim hais tias baking soda yog me ntsis abrasive, koj tuaj yeem siv nws los txhuam tawm corrosion thiab residue uas yuav tsis raug tso tawm los ntawm huab cua compressed. Sim siv nws nrog txhuam me me thiab dej distilled.

Siv cov dej lim

Hais txog cov dej distilled, cov khoom no kuj yog ib txoj hauv kev zoo kom muaj kev nyab xeeb thiab yooj yim tshem tawm corrosion ntawm Circuit Court boards. Cov dej distilled purest yuav tsis degrade lossis ua rau koj cov khoom siv hluav taws xob puas. Nws kuj yog tus neeg xyuas pib txaus ntshai, yog li tsis muaj laj thawj txhawj xeeb.

Siv cov tshuaj ntxuav tsev

Txhua lub tsev ntxhua khaub ncaws yog cov tshuaj zoo rau PCB corrosion, tab sis tsuas yog tias nws tsis muaj phosphates. Phosphates muaj txiaj ntsig zoo hauv kev tiv thaiv corrosion, tab sis yog qhov tseem ceeb ntawm cov pa phem hauv Asmeskas cov pas dej thoob plaws Tebchaws Meskas. Txawm li cas los xij, muaj ntau cov phosphate-free cleaners uas ua haujlwm zoo. Kuj tseem muaj cov tshuaj ntxuav PCB tshwj xeeb hauv khw.

Siv txhuam hniav

Ib qho txhuam hniav tuaj yeem yog cov cuab yeej muaj txiaj ntsig zoo thaum koj ntxuav lub rooj tsav xwm hauv Circuit Court, vim nws pab koj kom tau ntawm txhua qhov me me. Xaiv cov txhuam hniav nrog cov txhuam hniav yog qhov tseem ceeb. Qhov loj me kuj tseem ceeb, raws li koj xav tau kom ua tiav txhua qhov chaw me me.

Cov neeg feem coob nyiam siv txhuam hniav los yog txhuam hniav. Lawv khov kho thiab maj mam, thiab cov neeg feem coob twb muaj tsawg kawg yog ib qho ntawm lawv.

Ib daim ntaub microfiber uas tsis yog flaring kuj yog ib qho cuab yeej zoo los so thiab ziab lub rooj tsavxwm tam sim tom qab ntxuav.

Yuav ua li cas tiv thaiv corrosion ntawm lub rooj tsavxwm?

Cov hlau sib txawv muaj qib sib txawv ntawm kev pheej hmoo corrosion. Txawm hais tias lawv tuaj yeem corrode thaum kawg, tooj liab thiab lwm cov hlau hauv paus corrode ntau yooj yim dua thiab sai dua li cov hlau muaj txiaj ntsig thiab qee cov hlau. Cov tom kawg yog kim dua, yog li ntau tus kws tshaj lij yuav lo nrog cov hlau ntau dua, yog li nws yuav tsum paub yuav ua li cas tiv thaiv PCB corrosion tsis ua rau nws lub rooj tsavxwm.

Ib txoj hauv kev yooj yim los tiv thaiv corrosion ntawm lub rooj tsav xwm hauv Circuit Court yog muab cov txheej rau ntawm qhov chaw tooj liab. Muaj ntau ntau hom txheej txheej, suav nrog epoxy coatings, aerosol spray coatings thiab flux inhibitors.

Koj yuav tsum tau sim kom tsis txhob ya raws nyob ib ncig ntawm PCB. Sim ua kom lawv nyob hauv ib puag ncig uas tsis cuam tshuam los ntawm cov av noo. Koj tuaj yeem daws qhov teeb meem no los ntawm kev siv lub tshuab humidifier hauv tib chav. Tab sis paub yuav ua li cas tiv thaiv PCB corrosion yog thawj kauj ruam rau kev vam meej.

xaus

Corrosion ntawm Circuit Court boards ib txwm tshwm sim ntawm qee qhov chaw hauv lub neej ntawm cov khoom siv hluav taws xob. Thaum peb tsis tas yuav tsum tsis txhob siv nws tag nrho, peb tuaj yeem ua cov kauj ruam los txuas lub neej ntawm cov khoom siv hluav taws xob los ntawm kev tiv thaiv corrosion thiab kho lawv kom tsim nyog. Nws yooj yim kawm paub yuav ua li cas ntxuav lub corroded Circuit Court board, tab sis nws yog ib qho tseem ceeb.