PCB inoreva bhodhi redunhu rakadhindwa (Printed circuit board), inova mupi wemagetsi ekubatanidza zvinhu zvemagetsi.Inowanikwa zvakanyanya muindasitiri yemagetsi, uye matatu anti-adhesive (pendi) anoshandiswa zvakanyanya mairi, uye hapana rudzi rwakadai rwekunamatira sePCB-hutatu-uchapupu adhesive (pende).Muchokwadi, mutsetse wehutatu-uchapupu hwekunamira (pende) yakaputirwa paPCB.pendi).
Kushandisa matatu anti-pendi ndiko kudzivirira PCB kubva pakukuvadzwa nezvinhu zvekunze uye kuvandudza hupenyu hwesevhisi yePCB.Sezvo zvigadzirwa zvepamusoro zvemagetsi zvine zvakakwirira uye zvakakwirira zvinodiwa zvePCB mhando, conformal coatings inoshandiswa zvakanyanya pamabhodhi edunhu.
Zvinhu zvinokonzeresa kukuvara kwePCB nyore:
Hunyoro ndiyo inonyanya kupararira uye inoparadza chikuru chinhu kune PCBs.Kunyanya kunyorova kunoderedza zvakanyanya kudzivirira kwekudzivirira pakati pemakondakita, kukurumidza kuora, kuderedza Q kukosha, uye corrode conductors.Zvinowanzoitika kuti chikamu chesimbi chePCB chine patina, iyo inokonzerwa nemakemikari anoita yemhangura yesimbi ine mhute yemvura uye oksijeni.
Sezvakangoita kukuvadza mazana ezvakasvibiswa zvaunogona kuwana chero pabhodhi redunhu rakadhindwa, uye zvinogona kukonzera mibairo yakafanana nekurwisa hunyoro, sekutadza kwemagetsi, kukora kwemakondakita, uye kunyange mapfupi maseketi.Zvinosvibisa zvinowanzowanikwa mumasisitimu emagetsi zvinogona kunge zviri kemikari zvinhu zvakasara kubva mukugadzira.Izvi zvinosvibisa zvinosanganisira fluxes, solvent release agents, metal particles, uye ingi dzekumaka.
Kune zvakare mapoka makuru ekusvibisa kunokonzerwa nemaoko evanhu, semafuta emuviri, mafingerprints, cosmetics uye zvisaririra zvekudya.Kune zvakare zvakawanda zvinosvibisa munzvimbo yekushanda, zvakaita semunyu wekupfapfaidza, jecha, mafuta, asidhi, imwe mhunga inoparadza uye mold.
Sei uchiisa matatu anti-adhesive (pende)?
Iyo PCB yakashongedzwa neatatu anti-adhesive (pendi) haingori hunyoro-uchapupu, guruva-uchapupu, uye kusapinda kwemvura, asi zvakare ine kurwisa kutonhora uye kupisa kuvhunduka, kuchembera, kuramba nemwaranzi, munyu pfapfaidzo kuramba, ozone ngura kuramba, vibration. kuramba, kuchinjika kwakanaka uye kunamatira kwakasimba.Kana ichinge yakanganiswa nezvinhu zvakashata zvenzvimbo yekushanda, inogona kuderedza kana kubvisa kuderedzwa kwekushanda kwemagetsi.
Nekuda kwenzvimbo dzakasiyana dzekushandisa dzezvakasiyana zvigadzirwa zvekupedzisira, zvinodikanwa zvekuita zveiyo conformal adhesive zvichasimbiswa.Midziyo yemumba yakaita sefiriji, michina yekuwachisa, uye mahita emvura ane zvinodikanwa zvakakwirira zvekudzivirira hunyoro, nepo mafeni ekunze nemarambi emumugwagwa zvinoda zvigadzirwa zvine hunyanzvi hwekurwisa mhute.
Maitiro ekukurumidza uye nemazvo kuisa conformal adhesive (pende) kuPCB?
Muindasitiri yekugadzira PCB, mune otomatiki michina yekuputira pendi yekudzivirira pamabhodhi edunhu - matatu anti-pendi yekuisa muchina, inozivikanwawo semichina matatu anti-pendi gluing, matatu anti-pendi glue sprayers, matatu anti-pendi mafuta sprayers. , matatu anti-pendi Paint yekupfapfaidza michina, nezvimwewo, yakagadzirirwa kudzora mvura, uye kuvhara pendi yependi inopindirana pamusoro pePCB, sekuvhara chidimbu chephotoresist pamusoro pePCB nekunyudza, kupfapfaidza. kana spin coating.
Iwo matatu anti-pendi yekupotera muchina unonyanya kushandiswa kupfapfaidza, kupeta uye kudonha glue, pendi uye zvimwe zvinwiwa mukugadzirwa kwechigadzirwa kunzvimbo chaiyo yechigadzirwa chimwe nechimwe, uye inogona kushandiswa kuwana mutsara kudhirowa, denderedzwa kana arc.
Iwo matatu anti-pendi yekupotera muchina mudziyo wekupfapfaidza wakagadzirirwa kupfapfaidza matatu anti-pendi.Sezvo zvinhu zvekupfapfaidza uye zvinwiwa zvekupfapfaidza zvichashandiswa zvakasiyana, kusarudzwa kwezvikamu zvemuchina wekuputira maererano nechimiro chemidziyo kwakasiyanawo.Iwo matatu anti-pendi yekupotera muchina anotora yazvino kombiyuta yekudzora chirongwa, iyo inogona kuona matatu-axis yekubatanidza, uye yakashongedzerwa neKamera yekumisikidza yekutevera system inogona kunyatso kudzora nzvimbo yekupfapfaidza.
Nguva yekutumira: Mar-01-2023