Abadlali abaninzi be-DIY baya kufumanisa ukuba iimveliso zebhodi ezahlukeneyo kwimarike zisebenzisa iindidi ezidizzy zemibala yePCB.
Eyona mibala ixhaphakileyo ye-PCB imnyama, eluhlaza, eluhlaza, etyheli, emfusa, ebomvu, nemdaka.
Abanye abavelisi baphuhlise emhlophe, epinki kunye neminye imibala eyahlukileyo yePCB.

Kwimbono yendabuko, i-PCB emnyama ibonakala ibekwe kwindawo ephezulu, ngelixa ibomvu, iphuzi, njl., Ngaba isiphelo esisezantsi sinikezelwe, akunjalo?

Umaleko wobhedu we-PCB ngaphandle kwe-solder resistance coating i-oxidizes ngokulula xa ibonakaliswe emoyeni

Siyazi ukuba zombini umphambili kunye nomva wePCB ngamaleko obhedu.Kwimveliso yePCB, umaleko wobhedu uya kuba nomphezulu ogudileyo kwaye ungakhuselekanga kungakhathaliseki ukuba wenziwe ngendlela yokudibanisa okanye yokuthabatha.

Nangona iipropati zeekhemikhali zobhedu zingasebenzi njenge-aluminium, isinyithi, i-magnesium, kodwa phambi kwamanzi, ubhedu obucocekileyo kunye noqhagamshelwano lwe-oksijini kulula ukuba i-oxidized;
Ngenxa yobukho beoksijini kunye nomphunga wamanzi emoyeni, umphezulu wobhedu ococekileyo uya kusabela kwi-oxidation kamsinya emva kokudibana nomoya.

Njengoko ubukhulu bomaleko wobhedu kwi-PCB bubhityile kakhulu, ikopolo ene-oxidized iya kuba ngumqhubi ombi wombane, nto leyo eya konakalisa kakhulu ukusebenza kombane kuyo yonke i-PCB.

Ukuthintela i-oxidation yobhedu, ukwahlula iinxalenye ezidityanisiweyo nezingafakwanga kwi-PCB ngexesha le-welding, kunye nokukhusela umphezulu we-PCB, iinjineli zavelisa i-coating ekhethekileyo.
Ukugquma kungasetyenziswa ngokulula kumphezulu wePCB, ukwenza umaleko okhuselayo wobunzima obuthile kunye nokuthintela ubhedu kunxibelelwano lomoya.
Lo maleko wokugquma ubizwa ngokuba yi-solder resistance layer kwaye izinto ezisetyenzisiweyo yipeyinti yokumelana ne-solder.

Ekubeni ibizwa ngokuba yipeyinti, kufuneka kubekho imibala eyahlukileyo.
Ewe, ipeyinti yokuqala yokumelana ne-solder ayinambala kwaye ibonakale, kodwa i-PCB ihlala ifuna ukuprintwa ebhodini ukuze kube lula ukuyilungisa kunye nokwenza.

Ipeyinti ecacileyo yokumelana ne-solder ingabonisa kuphela umbala ongasemva we-PCB, ngoko ke nokuba yenziwe, iyalungiswa okanye iyathengiswa, imbonakalo ayilunganga.
Ke iinjineli zongeza iindidi zemibala kwipeyinti yokumelana nesolder ukwenza iPCB emnyama okanye ebomvu okanye eluhlaza.

 
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IiPCB eziMnyama kunzima ukuzibona iingcingo, nto leyo eyenza ukugcinwa kube nzima

Ukusuka kule mbono, umbala we-PCB awunanto yakwenza nomgangatho wePCB.
Umahluko phakathi kwe-PCB emnyama kunye ne-PCB eluhlaza okwesibhakabhaka, i-PCB emthubi kunye nomnye umbala we-PCB ilele kumbala owahlukileyo wepeyinti yokumelana ne-solder kwibrashi.

Ukuba iPCB iyilwe kwaye yenziwe ngokufanayo, umbala awuyi kuba nasiphumo ekusebenzeni, kwaye awuyi kuba nasiphi na isiphumo sokuchitha ubushushu.

Ngokubhekiselele kwi-PCB emnyama, i-wiring yayo yomphezulu iphantse yagqunywa ngokupheleleyo, okukhokelela kubunzima obukhulu bokulungiswa kamva, ngoko ngumbala ongalungele ukwenziwa kunye nokusetyenziswa.

Ngoko ke, kwiminyaka yakutshanje, abantu ngokuthe ngcembe uhlaziyo, bayeke ukusetyenziswa kwepeyinti yokuxhathisa i-solder emnyama, kwaye basebenzise ipeyinti emnyama, emnyama, eluhlaza okwesibhakabhaka kunye nezinye i-solder ukumelana nepeyinti, injongo kukuququzelela ukuveliswa kunye nokugcinwa.

Kweli nqanaba, sicace gca malunga nengxaki yombala wePCB.
Isizathu sokubonakala "kommeli wombala okanye ibakala eliphantsi" kuba abavelisi bathanda ukusebenzisa i-PCB emnyama ukwenza iimveliso eziphezulu, kunye nobomvu, obuluhlaza, obuluhlaza, obuphuzi kunye nezinye iimveliso eziphantsi.

Ukushwankathela, imveliso inika intsingiselo kumbala, hayi umbala onika intsingiselo kwimveliso.

Iyintoni inzuzo intsimbi exabisekileyo enjengegolide, isilivere enePCB?
Umbala ucacile, masithethe ngentsimbi exabisekileyo kwiPCB!
Abanye abavelisi ekukhuthazeni iimveliso zabo, baya kukhankanya ngokukodwa ukuba iimveliso zabo zisebenzise igolide, isilivere kunye nezinye iinkqubo ezizodwa.
Ngoko ke yintoni ukusetyenziswa kwale nkqubo?

Umphezulu we-PCB ufuna izinto ze-welding, kwaye inxalenye yomaleko wobhedu kufuneka ibonakaliswe kwi-welding.
Le maleko eveziweyo yobhedu ibizwa ngokuba yipads, kwaye iipads zihlala zixande okanye zisetyhula kwaye zinendawo encinci.

Ngaphezulu, siyazi ukuba ubhedu olusetyenziswa kwi-PCB luxutywa lula, ngoko ke ubhedu kwi-solder pad lubonakaliswe emoyeni xa ipeyinti yokumelana ne-solder isetyenziswa.

Ukuba i-copper kwi-pad i-oxidized, akunzima nje ukuyidibanisa, kodwa iphinda ikhulise ukuxhathisa, okuchaphazela kakhulu ukusebenza kwemveliso yokugqibela.
Ke iinjineli ziye zeza nazo zonke iintlobo zeendlela zokukhusela iipads.
Okufana nokucwenga igolide yentsimbi engasebenziyo, ukugquma umphezulu ngesilivere, okanye ukugquma ubhedu ngefilimu ekhethekileyo yemichiza ukuthintela ukudibana nomoya.

Iphedi eveziweyo kwi-PCB, umaleko wobhedu utyhileka ngokuthe ngqo.
Le nxalenye ifuna ukukhuselwa ukuyikhusela ekubeni i-oxidized.

Ukusuka kulo mbono, nokuba igolide okanye isilivere, injongo yenkqubo ngokwayo kukuthintela i-oxidation kunye nokukhusela iipads ukwenzela ukuba ziqinisekise isivuno esihle ngexesha lenkqubo ye-welding elandelayo.

Nangona kunjalo, ukusetyenziswa kweentsimbi ezahlukeneyo kuya kufuna ixesha lokugcina kunye neemeko zokugcina zePCB ezisetyenziswa kwisityalo sokuvelisa.
Ke ngoko, iifektri zePCB zihlala zisebenzisa umatshini wokutywina wevacuum ukupakisha iPCB ngaphambi kokuba kugqitywe imveliso yePCB kunye nokuhanjiswa kubathengi ukuqinisekisa ukuba akukho monakalo owenzeka kwi-oxidation kwiPCB ukuya kumda.

Ngaphambi kokuba amacandelo adityaniswe kumatshini, abavelisi bekhadi lebhodi nabo kufuneka babone iqondo le-oxidation ye-PCB, basuse i-PCB ene-oxidized, kwaye baqinisekise isivuno seemveliso ezilungileyo.
Umthengi wokugqibela wokufumana ikhadi lebhodi, udlula kwiimvavanyo ezahlukeneyo, nangona emva kwexesha elide lokusetyenziswa, i-oxidation iya kwenzeka kuphela kwiplagi kunye nokukhupha iindawo zokudibanisa, kunye neepads kwaye ziye zahlanganiswa amacandelo, akukho mpembelelo.

Ekubeni ukuxhathisa kwesilivere negolide kuphantsi, ngaba ukusetyenziswa kweentsimbi ezikhethekileyo ezifana nesilivere kunye negolide kuya kunciphisa ubushushu obuveliswa ngexesha lokusetyenziswa kwe-PCB?

Siyazi ukuba into echaphazela ixabiso le-calorific ukuxhathisa kombane.
Ukumelana kunye ne-conductor ngokwayo imathiriyeli, i-conductor cross-sectional area, ubude obunxulumene.
Ubukhulu bentsimbi yomphezulu wePad bungaphantsi kwe-0.01 mm, ukuba ukusetyenziswa kwe-OST (ifilimu ekhuselayo ye-organic) unyango lwe-pad, akuyi kubakho ubukhulu obugqithisileyo.
Ukuchasana okuboniswe ngobunzima obuncinci buphantse bube ngu-zero, okanye akunakwenzeka ukubala, kwaye ngokuqinisekileyo akuchaphazeli ukushisa.