Ho etsa ho rarolla mathata le ho lokisaPcbse ka holisa lipotoloho. Haeba PCB e fosahetseng e kopane leKopano ea PCBTs'ebetso, boto ea PCB e ka lokisoa ho latela mofuta oa pherekano ea pherekano. Ka tlase ho na le mekhoa e meng ea ho rarolla mathata le ho lokisa li-PCB.
1. Joang ho etsa taolo ea boleng ho PCB nakong eaTs'ebetso ea Tlhahiso?
Ka tloaelo, lifektheri tsa pcb li na le lisebelisoa tse khethehileng le lits'ebeletso tsa bohlokoa tse etsang hore boleng ba boleng bo tlase bo ntse bo etsa lintho ho pholletsa le li-PCB.
1.1.Tlhahlobo ea Aoi
Tlhahlobo ea Aoi ka boeona e baka likarolo tse sieo, karolo e mpe ea likarolo le likotlo tse ling ho PCB. Lisebelisoa tsa AOI li sebelisa lik'hamera ho hapa litšoantšo tse ngata tsa pcb ebe li bapisa le liboto tsa litšupiso. Ha setho sa ho fumanoa se fumanoa, se ka bontša liphoso tse ka bang teng.
1.2. Ho Hlahlotsoa Teko
Ho senyeha ha tlhahlobo ea ho fofa ho sebelisoa ho khetholla lipotoloho tse khutšoane le tse bulehileng, likarolo tse sa nepahalang (li-diodes le bafetoleli) le lietsalibelong) ts'ireletso ea diode. Mekhoa e fapaneng ea ho lokisa PCB e ka sebelisoa ho lokisa li-shorts le mekhahlelo ea mekhahlelo.
1.3.TTCT TOCTE
FCT (Teko e sebetsang) haholo ho tsepamisa maikutlo tlhahlobong e sebetsang ea li-PCB. Ho ka bonoa liparamente tsa liteko ka tloaelo ho fuoa lienjiniere 'me li ka kenyelletsa liteko tse bonolo tsa switch. Maemong a mang, software e khethehileng le li-protocol tse ikhethang li ka hlokahala. Ho leka ho sebetsa ka kotloloho ho hlahloba ts'ebetso ea PCB tlas'a maemo a tikoloho a lefatše.
2. Lisosa tse tloaelehileng tsa tšenyo ea PCB
Ho utloisisa lisosa tsa liphoso tsa PCB ho ka u thusa ho tseba liphoso tsa PCB kapele. Mona ke liphoso tse tloaelehileng:
Ho hloleha hoa motsoako: Ho beha likarolo tse nang le phoso ho ka lumella potoloho e sebetsang hantle.
Ho chesehaNtle le taolo e nepahetseng ea mocheso, likarolo tse ling li ka chesoa.
Tšenyo ea 'mele: Sena se bakoa haholo ke ho sebetsana le ho se sebetse hantle,
E lebisa mapetsong ka metsoako, manonyeletso a leshele, likala tsa maske, li-traces, le lipara le lipara.
TLHALOSO: Haeba pcB e pepesitsoe ke maemo a thata, ho tlatlaha le mekhahlelo e meng ea koporo.
3. U ka sebetsana le liphoso tsa pcb joang?
Ho latela lethathamo ke mekhoa e 8:
3-1. Utloisisa schematice ea potoloho
Ho na le likarolo tse ngata ho PCB, li ikopantse ka litsela tsa koporo. E kenyelletsa phepelo ea matla, mobu le matšoao a fapaneng. Ntle le moo, ho na le lipotoloho tse ngata tse kang filthara, tse kang sefako, mealo ea mekhabiso le bahopisi. Ho utloisisa tsena ho bohlokoa bakeng sa tokiso ea PCB.
Ho tseba ho batla tsela ea hajoale 'me ho itšeha likarolo tse fosahetseng tse itšetlehileng ka ho utloisisapotoloho ea potoloho. Haeba ho ka hlokahala
3-2. Tlhahlobo e bonahalang
Joalokaha ho boletsoe pejana, ho hofaha ke e 'ngoe ea lisosa tsa mantlha tsa liphoso tsa pcB. Metsoako efe kapa efe ea secheso, melumo kapa manone a rekise a ka tšoalloa habonolo ha ho se na tlhahiso ea matla. Mehlala e meng ea bofoko e kenyeletsa:
- bompoli / ho fetisa / likarolo tse sieo
- Li-transwad
- Bareki ba batang
- Sesole se feteletseng
- Metsoako e Khathatsong
- li-pads tse phahamisitsoeng / tse lahlehileng
- mapetso ho PCB
Tsena kaofela li ka bonoa ka tlhahlobo e bona.
3-3. Bapisoa le PCB e ts'oanang
Haeba u na le PCB e 'ngoe e ts'oanang le ea sebetsang hantle' me ho ba bonolo haholo. U ka bapisa likarolo, tšebeliso e mpe le liphiri ho methati kapa vaas. Ntle le moo, o ka sebelisa bocha ho lekola ho kenya letsoho le ho bala liboto tsena ka bobeli. Melao e tšoanang e lokela ho fumanoa ho tloha ha li-PCbs tse peli li tšoana.
3-4. Khetholla likarolo tse fosahetseng
Ha tlhahlobo e bonoang ha e lekane, o ka itšetleha ka lisebelisoa tse kang sematina kapa aLcr Meter. Lekola karolo e 'ngoe le e' ngoe ka bomong ka bonngoe ho latela libaka tsa mahaeng le litlhoko tsa moralo. Mehlala e kenyelletsa batho bahlamisi, bahlabeli, baiteli, li-diorisode le li-rads.
Mohlala, o ka sebelisa maemo a lipula ho adimeter ho hlahloba li-diodes le bafetoleli. Bokaholimo ba ntlo le ba motheo-Emitter e sebetsa e le li-diodes. Bakeng sa meralo e bonolo ea potoloho ea potoloho, u ka sheba lipotoloho tse bulehileng le tse khuts'oane ho khokahano eohle. Beha mitha ho hanyetsa kapa ho tsoela pele ho lekola khokahano e 'ngoe le e' ngoe.
Ha u e-na le cheke, haeba ho bala ho atisa ho bua ka litaba, karolo e nkoa e sebetsa hantle. Haeba ho bala ho sa tloaelehang kapa ho feta ho feta kamoo ho lebelletsoeng, ho ka ba le mathata ka karolo kapa lesole le manonyeletso. Kutloisiso e lebelletsoeng ea Voltage ea Teko ho lintlha tsa Teko li ka thusa tlhahlobo ea potoloho.
Mokhoa o mong oa ho hlahloba likarolo ke ka tlhahlobo ea nodal. Mokhoa ona o kenyelletsa ho sebelisa motlakase ka har'a likarolo tse khethiloeng ha li sa khone ho busa potoloho eohle le ho lekanya likarabo tsa Voltage (V-Karabelo). Qolla li-node tsohle 'me u khethe tse boletsoeng li hokahaneng le likarolo tsa bohlokoa kapa mehloli ea motlakase. Sebelisa molao oa hajoale oa kirchhoff Haeba ho na le mathata a hlokometsoeng ka node e itseng, e bonts'a molato ka node eo.
Teko ea potoloho e kopaneng e ka ba mosebetsi o boima ka lebaka la ho rarahana ha bona. Mona ke liteko tse ka etsoang:
- Fumana matšoao 'ohle ebe o leka IC a sebelisa sekaseka kapa aOnnelscope.
- Lekola hore na IC e loketse ka nepo.
- Netefatsa hore manonyeletso 'ohle a hokahane le IC a maemong a sebetsang hantle.
- Lekola maemo a ho itlotsa mocheso kapa lipampiri tsa mocheso kapa li-armal li hokahane le IC ho netefatsa ho senyeha hoa mocheso.
3-6. Phepelo ea motlakase ea motlakase
Ho rarolla mathata a phepelo ea matla a matla a matla a matla a matla a matla a matla a matla a matla a matla a ho beha letsoai le voltages. Ho bala ka nako ea voltmeter ho ka bonts'a boleng le boleng ba likarolo. Liphetoho tsa Pentage li ka bontša mathata a ka a pohlamang. Ka mohlala, ho bala 0V ka seporo ho ka supa potoloho e khuts'oane ea phepelo ea motlakase,, e lebisang karolong e kholo. Ka ho khanna liteko tsa Botho ba matla le ho bapisa litekanyetso tse lebelletsoeng tsa litekanyo tsa mantlha, liphallelo tse nang le mathata li ka aroloa.
3-7. Ho Khetholla Mabotho a potoloho
Ha mafube a bonoang a ke ke a fumanoa, senoelo sa 'mele ka ente ea matla e ka sebelisoa ho lekola potoloho eo. Likhokahano tse sa nepahalang li ka hlahisetsa mocheso, e ka utloisoang ke ho beha letsoho letong ea potoloho. Khetho e 'ngoe ke ho sebelisa kh'amera e futhumetseng ea ho nahana, eo hangata e haneloang lipotoloho tse tlase tsa voltage. Litlhoko tsa polokeho ea polokeho ea polokeho ea polokeho ho qoba likotsi tsa motlakase.
Mokhoa o mong ke ho netefatsa hore o sebelisa letsoho le le leng feela bakeng sa tlhahlobo. Haeba letheba le chesang le fumanoa, e lokela ho kokobetsa tlase, ebe lintlha tsohle tse amanang le tsona li lokela ho hlahlojoa ho tseba hore na bothata bo majabajaba.
3-8. Ho rarolla mathata ka mekhoa ea ho supa
Ho sebelisa mokhoa ona, ho bohlokoa hore re utloisise litekanyetso tse lebelletsoeng le li-waves tsa liteko tsa liteko. Teko ea voltage e ka etsoa ka lintlha tse fapaneng u sebelisa sekholopane, Os Ancyloscope, kapa sesebelisoa se hatellang. Ho sekaseka liphetho ho ka thusa ho khetholla liphoso.
4. Lisebelisoa tse hlokahalang bakeng saHo lokisa PCB
Pele u etsa litokiso, ho bohlokoa ho bokella lisebelisoa tse hlokahalang mosebetsing, 'Kni e ke ke ea khaola patsi.'
● Lits'enyehelo tse nang le mabaka a esd, liseke tse matla tsa matla le mabone a bohlokoa.
● Ho fokotsa litšitiso tsa liamore, makhoaba a futhumetseng a futhumatsang kapa matheba a ka sehloohong a ho rera boto ea potoloho.
● Ho hlokahala sistimi e tahang hantle ea ho anyesa le ho bula hole nakong ea ho lokisa. Sistimi ena e lumella taolo holim'a bophara le botebo ba li-slots.
● Iron e ntle ea ho rekisoa e hlokahala bakeng sa thekiso ea thekiso ho netefatsa ho netefatsa manonyeletso a nepahetseng a linaleli.
● Ho feta moo, motlakase o ka boela oa hlokahala.
● Haeba karolo ea lesela le maske e senyehile, e tla hloka ho lokisoa. Maemong a joalo, karolo ea Redin ea Epo ea Epo ea Epo ea Epo ea Epo ea Epo ea epo
5. Liteko tsa polokeho nakong ea tokiso ea PCB
Ho bohlokoa ho nka mehato ea thibelo ho qoba likotsi tsa polokeho nakong ea ho lokisa ho lokisa.
● Lisebelisoa tsa ts'ireletso: ha u sebetsana le lithemparetjha tse phahameng kapa matla a phahameng, a apara lisebelisoa tse sirelelitsoeng. Li-trises tsa polokeho le liatlana li lokela ho tsosoa nakong ea theko le lits'ebetsong tse chending, ho sireletsa khahlanong le likotsi tsa lik'hemik'hale.
Ho roala liatlana ha u lokisa li-psbs.
● Ho kuta elektrocia (esd): Ho thibela likhopo tsa motlakase tse bakoang ke ESD, etsa bonnete ba hore li se ke tsa kokobetsa mohloli oa matla le motlakase o phonyohang. U ka roala li-wristbands kapa u sebelise li-bats tsa anti-static ho eketsa kotsi ea esd.
6. Tsela ea ho lokisa PCB?
Phoso e Ikhethileng ho PCB hangata e kenyelletsa liphiri ho meaho, likarolo le rekisa ea rekise.
6-1. Ho lokisa lipapatso tse senyehileng
Ho lokisa melumo e robehileng kapa e senyehileng ho PCB, sebelisa ntho e bohale ho pepesa sebaka se kaholimo le ho tlosa maske oa lesela. Hloekisa bokaholimo ba koporo ka lehare ho tlosa litšila leha e le life, ho thusa ho fihlela tšimoloho e ntle ea motlakase.
Ntle le moo, u ka rekisa lireschorente tsa jumper tsa jumper ho lokisa lipampiri. Etsa bonnete ba hore bophara ba terata e tsamaisana le bophara ba trace bakeng sa ho bapisa ka nepo.
6-2.Ho fetola likarolo tse fosahetseng
Ho fetola likarolo tse senyehileng
Ho tlosa likarolo tse fosahetseng kapa lesole le feteletseng ho tloha manonyeletso a makhotla, ho tlameha ho nkuoa e le lesole sebakeng se futhumatsang sebakeng se futhumatsang sebakeng se potolohileng. Kamora mehato e ka tlase ho khutlisetsa likarolo ho potoloha:
● Ho futhumatsa lesele le tiisa hore ho sebelisa sesebelisoa sa ho rekisoa habohloko kapa ka thata.
● Hang ha lesele le qhibilihile, sebelisa pompo ea ho senya ho tlosa mokelikeli.
● Kamora ho tlosa likhokahano tsohle, karolo e tla koaloa.
Ka mor'a moo, ho bokana karolo ena e ncha le morekisi sebakeng sa eona.
● Ho tiisa hore karolo e feteletseng ea karolo e nka ho sebelisa literata tsa terata.
● Etsa bonnete ba hore litsotsi li hokahane ho latela Polaring e hlokahalang.
6-3. Ho lokisa lipampiri tse senyehileng
Ha nako e ntse e tsoela pele, ka thata ea rekisoa ho PCB e ka phahamisa, Corrode, kapa e robehe. Mona ke mekhoa ea ho lokisa makhoaba a senyehileng a ho lokisa
Ho phahamisa lipampiri tsa balebeliHlatsoa sebaka seo ka matla a sebelisa swab ea k'hothone. Ho thibela pad morao sebakeng seo, kenya epoxy e tsamaisang pele ebe o e tobetsa, o lumella tumello ea Epo ea Epo ea nako.
Makhoaba a senyehileng kapa a silafetsengTLHOKOMELISO: Tlosa Hloekisa sebaka ka solvent u sebelisa Swab ea k'hothone. Ka lehong le lecha la lesela le lecha (amanang le tšitiso), sebelisa sebaka sa boithabiso sa boithabiso ebe sea se sireletsehile. Ka mor'a moo, eketsa sebaka sa Epoxy pakeng tsa trace le Lebenkele la Mahala. E fole pele e tsoela pele ka sepolesa.
Shenzhen Anke Pcb Co, Ltd
2023-7-20
Nako ea poso: Jul-21-2023
