Sengoliloeng sena se u fa kenyelletso e felletseng ea litlhoko tsa ts'ebetso ea ho baka ea boto ea potoloho ea PCB le likhothaletso tsa ho boloka matla.Ka mathata a matla a matla a lefats'e a ntseng a eketseha le ho matlafatsoa ha melao ea tikoloho, baetsi ba PCB ba hlahisitse litlhoko tse phahameng bakeng sa boemo ba ho boloka matla ba lisebelisoa.Ho baka ke ts'ebetso ea bohlokoa ts'ebetsong ea tlhahiso ea PCB.Lisebelisoa tsa khafetsa li ja motlakase o mongata.Ka hona, ho ntlafatsa thepa ea ho baka ho ntlafatsa paballo ea matla e fetohile e 'ngoe ea litsela tsa baetsi ba boto ea PCB ho boloka matla le ho fokotsa litšenyehelo.
Ts'ebetso ea ho baka e batla e tsamaisana le ts'ebetso eohle ea tlhahiso ea boto ea potoloho ea PCB.Tse latelang li tla u tsebisa litlhoko tsa ts'ebetso ea ho baka bakeng sa tlhahiso ea boto ea potoloho ea PCB.
1. Mehato ea ts'ebetso e hlokahalang bakeng sa ho baka liboto tsa PBC
1. Lamination, ho pepeseha, le sootho ka tlhahiso ea ka hare lera diphanele hloka ho kena omisa kamoreng bakeng sa ho baka.
2. Ho lebisa tlhokomelo, ho senya le ho sila ka mor'a ho lamination ho hlokahala ho tlosa mongobo, solvent le khatello ea kelello ea ka hare, ho tsitsisa sebopeho le ho ntlafatsa ho khomarela, 'me ho hloka phekolo ea ho baka.
3. Koporo e ka sehloohong ka mor'a ho cheka e hloka ho apeha ho khothalletsa botsitso ba mokhoa oa electroplating.
4. Kalafo ea pele, lamination, ho pepeseha le ntshetsopele tlhahisong ea ka ntle ea lera tsohle li hloka mocheso oa ho baka ho khanna lik'hemik'hale tsa lik'hemik'hale ho ntlafatsa ts'ebetso ea thepa le liphello tsa ts'ebetso.
5. Ho hatisa, ho baka pele, ho pepeseha, le nts'etsopele pele mask a solder a hloka ho baka ho netefatsa botsitso le ho khomarela lisebelisoa tsa mask a solder.
6. Pickling le khatiso pele mongolo oa khatiso o hloka ho baka ho khothalletsa karabelo ea lik'hemik'hale le botsitso ba thepa.
7. Ho baka ka mor'a phekolo ea OSP ho bohlokoa bakeng sa botsitso le ho khomarela lisebelisoa tsa OSP.
8. E tlameha ho apehoa pele ho bōptjoa ho tiisa ho omella ha thepa, ho ntlafatsa ho khomarela ka lisebelisoa tse ling, le ho netefatsa phello ea ho bōpa.
9. Pele ho tlhahlobo ea probe e fofang, e le ho qoba maikutlo a fosahetseng le likahlolo tse fosahetseng tse bakoang ke tšusumetso ea mongobo, ts'ebetso ea ho baka e boetse e hlokahala.
10. Phekolo ea ho baka pele ho tlhahlobo ea FQC ke ho thibela mongobo holim'a metsi kapa ka har'a boto ea PCB ho etsa hore liphetho tsa liteko li se ke tsa nepahala.
2. Mokhoa oa ho baka ka kakaretso o arotsoe ka mekhahlelo e 'meli: ho baka ka mocheso o phahameng le ho baka mocheso o tlase:
1. Mocheso o phahameng oa mocheso oa ho baka hangata o laoloa ke hoo e ka bang 110°C, 'me nako e ka ba lihora tse 1.5-4;
2. Mocheso o tlase oa mocheso oa ho baka hangata o laoloa ke hoo e ka bang 70°C, 'me nako e nka lihora tse 3-16.
3. Nakong ea ts'ebetso ea ho baka ea boto ea potoloho ea PCB, lisebelisoa tse latelang tsa ho baka le ho omisa li hloka ho sebelisoa:
Ovine ea kotopo e otlolohileng, e bolokang matla, mochini oa tlhahiso ea ho baka o itirisang ka botlalo, ontong ea infrared le lisebelisoa tse ling tse hatisitsoeng tsa PCB board board.
Mefuta e fapaneng ea lisebelisoa tsa ontong tsa PCB li sebelisoa bakeng sa litlhoko tse fapaneng tsa ho baka, tse kang: PCB board hole plugging, solder mask screen printing baking, e hlokang ts'ebetso e ikemetseng ea bolumo e kholo.Liovine tse bolokang matla li sebelisoa hangata ho boloka basebetsi ba bangata le lisebelisoa tsa thepa ha li ntse li finyella katleho e phahameng.Ts'ebetso e nepahetseng ea ho baka, ts'ebetso e phahameng ea mocheso le sekhahla sa tšebeliso ea matla, moruo le tikoloho, e sebelisoa haholo indastering ea boto ea potoloho bakeng sa maske a solder pele ho baka le mongolo oa post-baking oa liboto tsa PCB;ea bobeli, e sebelisoa haholo bakeng sa ho baka le ho omisa mongobo oa boto ea PCB le khatello ea maikutlo ka hare.Ke onto ea potoloho ea moea o chesang e otlolohileng e nang le litšenyehelo tse tlase tsa lisebelisoa, sebaka se senyenyane sa maoto 'me se loketse ho baka ka mekhahlelo e mengata.
4. Litharollo tsa ho baka tsa boto ea PCB, likhothaletso tsa lisebelisoa tsa ontong:
Ho akaretsa, ke mokhoa o ke keng oa qojoa oa hore baetsi ba boto ea potoloho ea PCB ba na le litlhoko tse phahameng le tse phahameng bakeng sa maemo a bolokang matla a lisebelisoa.Ke tataiso ea bohlokoa haholo ho ntlafatsa maemo a ho boloka matla, ho boloka litšenyehelo le ho ntlafatsa katleho ea tlhahiso ka ho ntlafatsa kapa ho fetola lisebelisoa tsa ho baka.Lionto tsa kotopo tse bolokang matla li na le melemo ea ho boloka matla, ts'ireletso ea tikoloho, le ts'ebetso e phahameng, 'me hajoale li sebelisoa haholo.Taba ea bobeli, lionto tse tsamaisang moea o chesang li na le melemo e ikhethang ho liboto tsa PCB tse phahameng tse hlokang ho baka ka nepo le bohloeki joalo ka liboto tsa IC carrier.Ho feta moo, li na le mahlaseli a infrared.Litofo tsa kotopo le lisebelisoa tse ling tsa onto ha joale li se li holile ho omisa le ho phekola litharollo.
E le moetapele oa paballo ea matla, Xinjinhui e lula e ntlafatsa le ho etsa phetoho e sebetsang.Ka 2013, k'hamphani e ile ea qala moloko oa pele oa PCB mongolo oa post-baking-mofuta oa khatiso oa onto ea ontong, e ntlafalitseng ts'ebetso ea ho boloka matla ka 20% ha e bapisoa le lisebelisoa tsa setso.Ka selemo sa 2018, k'hamphani e ile ea tsoela pele ho tsebisa moloko oa bobeli oa "PCB text on post-baking" ontong, e fihletseng ntlafatso ea leapfrog ea 35% ea ho boloka matla ha e bapisoa le moloko oa pele.Ka 2023, ka lipatlisiso tse atlehileng le nts'etsopele ea palo ea litokelo tsa boqapi le mahlale a macha, boemo ba ho boloka matla ba k'hamphani bo eketsehile ka 55% ha bo bapisoa le moloko oa pele, 'me bo ratoa ke lik'hamphani tse ngata tse holimo tse 100 ho PCB. indasteri, ho kenyeletsoa Jingwang Electronics.Likhamphani tsena li memiloe ke Xin Jinhui ho etela le ho buisana le liphanele tsa liteko tsa feme.Nakong e tlang, Xinjinhui e tla boela e hlahise lisebelisoa tse ngata tsa theknoloji e phahameng.Ka kopo, lula u mametse, 'me u amohelehile ho re letsetsa bakeng sa lipuisano le ho etsa tumellano ea ho re etela bakeng sa puisano le sefahleho.
Nako ea poso: Mar-11-2024