PCB Ukugqwala kubangelwa yizici eziningi ezahlukahlukene, njenge:

* Ukugqwala kwe-atmospheric

* Ukugqwala kwendawo

* ukugqwala kukagesi

* Ukugqwala kwe-Electrolytic

* Ukwakhiwa kwe-dendrite ye-Electrolytic

* Ukugqwala okushisayo

*I-Intergranular corrosion

Ukugqwala kwebhodi lesifunda kungaba yingozi kakhulu kumabhodi esekethe aphrintiwe, futhi nakuba kunezizathu eziningi zokugqwala kwe-PCB, kunezindlela ezimbalwa zokuwahlanza usebenzisa imikhiqizo yasendlini yendabuko efana nesoda yokubhaka nomoya ocindezelwe.

Izinyathelo zokuqapha nazo zingathathwa ukuqinisekisa ukuthi ukugqwala kwe-PCB akwenzeki ngokuzayo.

Yini ebangela ukugqwala kwe-PCB?

Ukugqwala kwebhodi lesifunda kungase kube yingozi ekucekeleni phansi ngokuphelele i-PCB, ngaleyo ndlela iyenze ibe yize. Lokhu kubola kungadalwa yizimbangela ezahlukahlukene. Kuyinqubo ye-oxidation eyenzeka lapho i-oxygen ihlangana nensimbi futhi ibangele ukugqwala nokuqubuka.

Ukugqwala kwe-atmospheric

Ukugqwala kwe-atmospheric, uhlobo oluvame kakhulu lokugqwala kwe-PCB, kuhilela ukuchayeka kwensimbi kumswakama, okubuye kuveze umoya-mpilo. Inhlanganisela yalezi zakhi ibangela ukusabela lapho ama-ion ensimbi ehlangana nama-athomu omoya-mpilo ukuze akhe ama-oxide.

Ukugqwala kwe-atmospheric kwenzeka ikakhulukazi ezindaweni zethusi. Nakuba ithusi ligcina izici zalo eziwumshini ngisho nalapho ligqwalile, alikugcini ukuqhutshwa kwalo kagesi.

Ukugqwala kwendawo

Ukugqwala kwendawo kufana nanoma yiluphi uhlobo lokugqwala okuvamile, ngaphandle kokuthi kuthinta kakhulu indawo elinganiselwe noma indawo encane. Lokhu kugqwala kungase kuhlanganise ukugqwala kwe-filamentous, ukugqwala kwe-crevice kanye nokugqwala kwemigodi.

Ukugqwala kukagesi

Lolu hlobo lokugqwala lwenzeka ezindaweni zezinsimbi nama-electrolyte ahlukahlukene, lapho insimbi emelana nokugqwala igqwala ngokushesha kunesisekelo sensimbi lapho kuvezwa khona.

Ukugqwala kwe-Electrolytic

Ukugqwala kwe-Electrolytic kwenzeka lapho i-dendrite ikhula ngenxa yemikhondo yokuxhumana. Lokhu kwanda kwenzeka lapho amanzi e-ionic angcolile engena ku-voltage phakathi kwemikhondo emibili. Kuvele ukuthi umucu wensimbi ubangele ukujikeleza okufushane.

Ukwakhiwa kwe-Electrolytic dendrite

Ukwakheka kwe-electrolytic dendrite kwenzeka lapho kunokungcoliswa kwe-ion emanzini. Lokhu kusonteka kuzodala noma imuphi umkhondo wethusi oseduze onama-voltages ahlukene ukukhulisa imichilo yensimbi, eyogcina iholele esifundeni esifushane phakathi kwemikhondo.

Ukugqwala okuncane

Ukukhathazeka kuwumphumela wokucisha ngokuqhubekayo iswishi ye-tinning. Le nhlangano ikhiqiza isenzo sokusula esigcina sisuse ungqimba lwe-oxide ebusweni. Uma lokhu kwenzeka, ungqimba olungaphansi kwalo lukhiqiza i-oxidize futhi kwakheka ukugqwala okukhulu okuphazamisa ukusebenza kweswishi.

Ukugqwala kwangaphakathi

Lokhu kugqwala kokugcina kuhilela ukuba khona kwamakhemikhali emingceleni yokusanhlamvu ye-trace yethusi, futhi ukugqwala kwenzeka ngenxa yokuthi imingcele yokusanhlamvu isengozini yokugqwala ngenxa yokuqukethwe kwawo kokungcola okuphezulu.

Ungasusa kanjani ukugqwala ku-PCB?

Ngokuhamba kwesikhathi, ngaphezu kokugqwala kunganqwabelana ku-PCB yakho. Ukungcola, uthuli nokungcola kwazo zonke izinhlobo kungena kalula emishinini yakho kagesi. Ukuzihlanza kungasiza ukuvimbela ukugqwala. Kodwa-ke, uma uthola ukuthi i-PCB igqwalile, ungafunda ukuthi ungasusa kanjani ukugqwala futhi usebenzise izindlela ezilandelayo ukugwema ukulimala unomphela.

Sebenzisa umoya ocindezelweyo

Umoya ocindezelwe uyithuluzi elivamile lokuhlanza ngogesi. Ungasebenzisa umoya ocindezelwe ngokukhulula ama-pulse amafushane phakathi nendawo yokukhipha umoya. Le ndlela yokuhlanza inconyelwa ukunakekelwa okujwayelekile kwe-elekthronikhi, ngakho-ke uma ufuna ukubhekana nokugqwala, kuzodingeka uvule i-electronics bese uyishaya emthonjeni.

Sebenzisa i-baking soda

I-baking soda iyisithako esisebenza kahle kakhulu sokususa ukugqwala kwe-PCB. Akukhona lokho kuphela, kodwa amakhabethe akho ekhishi cishe kakade aqukethe i-baking soda. Ngenxa yokuthi i-baking soda ilimaza ngokulingene, ungayisebenzisela ukukhuhla ukugqwala nezinsalela ezingeke zikhishwe umoya ocindezelwe. Zama ukuyisebenzisa ngebhulashi elincane namanzi acwecwe.

Sebenzisa amanzi acolisisiwe

Uma sikhuluma ngamanzi a-distilled, lo mkhiqizo uyindlela enhle yokukhipha ngokuphepha futhi kalula ukugqwala kumabhodi wesifunda. Amanzi acwengekile acwengekile angeke alulaze noma alimaze ugesi wakho. Futhi i-conductor embi, ngakho-ke asikho isizathu sokukhathazeka.

Sebenzisa izihlanzi zasendlini

Noma yisiphi isicoci sasendlini siyisixazululo esihle sokugqwala kwe-PCB, kodwa kuphela uma singenawo ama-phosphates. Ama-Phosphates ayasebenza ekuvimbeleni ukugqwala, kodwa angumthombo obalulekile wokungcola emachibini aseMelika kulo lonke elaseMelika. Kodwa-ke, kunezihlanzi eziningi ezingena-phosphate ezisebenza kahle. Kukhona futhi imishini yokuhlanza i-PCB ekhethekile emakethe.

Sebenzisa ibhulashi

Ibhulashi lingaba ithuluzi eliwusizo kakhulu uma uhlanza ibhodi lesifunda, njengoba likusiza ukuthi ungene phakathi kwazo zonke izingxenye ezincane. Ukukhetha ibhulashi elinama-soft bristles kubalulekile. Usayizi nawo ubalulekile, njengoba udinga ukwazi ukufeza zonke izikhala ezincane kakhulu.

Iningi labantu lithanda ukusebenzisa isixubho noma ibhulashi lokupenda. Ziqinile futhi zimnene, futhi abantu abaningi sebevele bengabanikazi okungenani bazo.

Indwangu ye-microfiber engashisi futhi iyithuluzi elihle lokusula nokomisa ibhodi ngokushesha ngemva kokuhlanza.

Ukuvimbela kanjani ukugqwala ebhodini lesifunda?

Izinsimbi ezahlukahlukene zinamazinga ahlukene engcuphe yokugqwala. Nakuba zonke zingagqwala ekugcineni, ithusi nezinye izinsimbi eziyisisekelo zigqwala kalula futhi ngokushesha kunezinsimbi eziyigugu nama-alloys athile. Lokhu kokugcina kubiza kakhulu, ochwepheshe abaningi bazonamathela ensimbi evamile, ngakho-ke kuyadingeka ukwazi ukuthi ungavimbela kanjani ukugqwala kwe-PCB ngaphandle kokulimaza ibhodi layo.

Indlela elula yokuvimbela ukugqwala ebhodini lesifunda ukubeka i-coating endaweni yethusi eveziwe. Kunezinhlobo eziningi ezihlukene zokumboza, okuhlanganisa i-epoxy coatings, i-aerosol spray coatings kanye nama-flux inhibitors.

Kufanele futhi uzame ukugwema umswakama ozungeze i-PCB. Zama ukuwagcina endaweni engathintwa umswakama. Ungakwazi ukuxazulula le nkinga ngokusebenzisa i-humidifier ekamelweni elifanayo. Kepha ukwazi ukuvimbela ukugqwala kwe-PCB kuyisinyathelo sokuqala empumelelweni.

isiphetho

Ukugqwala kumabhodi esekethe ngokwemvelo kwenzeka esikhathini esithile empilweni yensiza kagesi. Nakuba singakugwemi ngokuphelele ukuyisebenzisa ngokuphelele, singathatha izinyathelo zokwelula impilo yezinto zikagesi ngokuvimbela ukugqwala nokuziphatha ngendlela efanele. Kulula ukufunda ukuhlanza ibhodi lesifunda eligqwalile, kodwa kubalulekile.