Kungani i-PCB (ibhodi lesekethe eliphrintiwe) kufanele igcotshwe ngopende osemthethweni?Indlela yokudweba ngokushesha nangokunembile ibhodi lesifunda?

I-PCB ibhekisela ebhodini lesifunda eliphrintiwe (Ibhodi lesekethe eliphrintiwe), elingumhlinzeki woxhumano lukagesi lwezingxenye ze-elekthronikhi.Kuvame kakhulu embonini ye-elekthronikhi, futhi i-anti-adhesive emithathu (upende) isetshenziswa kakhulu kuwo, futhi alukho uhlobo olunjalo lokunamathela njenge-PCB yokunamathisela ubufakazi obuthathu (upende).Eqinisweni, ungqimba lwe-adhesive enobufakazi obuthathu (upende) lumbozwe ku-PCB.upende).

Ukusebenzisa ama-anti-pende amathathu ukuvimbela i-PCB ukuthi ingalinyazwa izinto zangaphandle futhi kuthuthukiswe impilo yesevisi ye-PCB.Njengoba imikhiqizo ye-elekthronikhi esezingeni eliphezulu inezidingo eziphakeme neziphakeme zekhwalithi ye-PCB, izimbotshana ezivumelanayo zisetshenziswa kabanzi kumabhodi wesekethe.

Izinto ezidala kalula ukulimala kwe-PCB:

Umswakama uyisici esivame kakhulu nesilimaza kakhulu kuma-PCB.Umswakama owedlulele uzokwehlisa kakhulu ukumelana nokufakwa phakathi kwamakhondatha, kusheshise ukubola, kunciphise inani le-Q, kanye namakhondaktha agle.Ngokuvamile kwenzeka ukuthi ingxenye yensimbi ye-PCB ine-patina, ebangelwa ukusabela kwamakhemikhali ethusi lensimbi nomhwamuko wamanzi nomoya-mpilo.

Njengoba nje kulimaza amakhulukhulu ezinto ezingcolisayo ongazithola ngokungahleliwe ebhodini lesifunda eliphrintiwe, futhi zingabangela imiphumela efanayo nokuhlaselwa komswakama, njengokungaphumeleli kwe-electronic, ukugqwala kwama-conductor, ngisho namasekhethi amafushane.Ukungcola okuvame ukutholakala ezinhlelweni zikagesi kungase kube izinto zamakhemikhali ezisele ohlelweni lokukhiqiza.Lezi zinto ezingcolisayo zihlanganisa ama-fluxes, ama-solvent release agents, izinhlayiya zensimbi, noyinki wokumaka.

Kukhona namaqembu amakhulu okungcola okudalwa yizandla zabantu, njengamafutha omzimba, izigxivizo zeminwe, izimonyo nezinsalela zokudla.Kukhona nezinto eziningi ezingcolisa umoya endaweni yokusebenza, njengesifutho sikasawoti, isihlabathi, uphethiloli, i-asidi, esinye isitimu esibolayo kanye nesikhunta.

Kungani kufanele usebenzise i-anti-adhesive emithathu (upende)?

I-PCB enama-anti-adhesive amathathu (upende) ayigcini nje ngokufaka umswakama, i-dust-proof, futhi ingangeni manzi, kodwa futhi inokumelana nokushaqeka okubandayo nokushisa, ukumelana nokuguga, ukumelana nemisebe, ukumelana nosawoti isifutho, ukumelana nokugqwala kwe-ozone, ukudlidliza. ukumelana, ukuguquguquka okuhle nokunamathela okuqinile.Uma kuthinteka izinto ezimbi zendawo yokusebenza, kunganciphisa noma kuqede ukuwohloka kokusebenza kwe-elekthronikhi.

Ngenxa yezindawo ezihlukene zokusetshenziswa kwemikhiqizo ehlukene yokugcina, izidingo zokusebenza ze-adhesive conformal zizogcizelelwa.Imishini yasendlini njengeziqandisi, imishini yokuwasha, nezifudumezi zamanzi zinezidingo eziphakeme zokumelana nomswakama, kuyilapho amafeni angaphandle namalambu asemgwaqweni adinga imikhiqizo esebenza kahle kakhulu yokulwa nenkungu.

Ungayifaka kanjani ngokushesha nangempumelelo i-adhesive conformal (upende) ku-PCB?

Embonini yokucubungula i-PCB, kunemishini ezenzakalelayo esebenza ngokugcwele yokumboza upende ovikelayo emabhodini esekethe - imishini emithathu yokuhlanganisa i-anti-paint, eyaziwa nangokuthi yimishini emithathu yokuhlanganisa i-anti-paint, izifutho ezintathu zeglue ezilwa nopende, izifutho ezintathu zikawoyela ezilwa nopende. , imishini emithathu yokufafaza i-Paint anti-paint, njll., yakhelwe ukulawula uketshezi, futhi imboze ungqimba lukapende ohlelekile ebusweni be-PCB, njengokumboza ungqimba lwe-photoresist ebusweni be-PCB ngokucwiliswa, ngokufafaza. noma i-spin coating.

Umshini wokuhlanganisa upende wokulwa nopende usetshenziselwa ikakhulukazi ukufafaza okunembile, ukumboza nokuconsa kweglue, upende nolunye uketshezi enqubweni yomkhiqizo ukuya endaweni eqondile yomkhiqizo ngamunye, futhi ungasetshenziswa ukufeza umdwebo womugqa, indilinga noma i-arc.

Umshini wokumboza kapende othathu uyisisetshenziswa sokufafaza esiklanyelwe ngokukhethekile ukufafaza ama-anti-paint amathathu.Njengoba izinto ezizofafazwa kanye neziphuzo ezifuthayo ezizosetshenziswa zihlukile, ukukhethwa kwezingxenye zomshini wokumboza ngokwesakhiwo semishini nakho kuhlukile.Umshini wokumboza kapende othathu wamukela uhlelo lwakamuva lokulawula ikhompuyutha, olukwazi ukubona ukuxhumana kwama-eksisi amathathu, futhi lufakwe Isistimu yokulandela indawo yekhamera ingakwazi ukulawula ngokunembile indawo yokufafaza.