Kutheni le nto iPCB (ibhodi yesekethe eprintiweyo) kufuneka ipeyintwe ngezinto zokwaleka ezihambelanayo?Indlela yokupenda ngokuchanekileyo nangokukhawuleza ibhodi yesiphaluka?

I-PCB ibhekisa kwibhodi yesekethe eprintiweyo, engumboneleli woqhagamshelo lombane lwamalungu e-elektroniki.Ixhaphake kakhulu kwishishini le-elektroniki, kwaye i-conformal coating nayo isetyenziswa ngokubanzi.Akukho nto incamathelayo PCB ezintathu proofing glue (peyinti).Ngapha koko, kukusebenzisa umaleko we-conformal coating kwi-PCB.

Izinto zokugquma ngokusesikweni kukuthintela iPCB ukuba yonakaliswe zizinto zangaphandle kunye nokuphucula ubomi benkonzo yePCB.Njengoko iimveliso zombane ezikumgangatho ophezulu zineemfuno eziphezulu neziphezulu kumgangatho we-PCB, ipeyinti yokuqinisekisa emithathu isetyenziswa ngokubanzi kwiibhodi zesekethe.

Izinto ezinokubangela umonakalo wePCB:

Ukufuma yeyona nto ixhaphakileyo neyonakalisayo kwi-PCB.Ukufuma okugqithisileyo kuya kunciphisa kakhulu ukunyanzeliswa kwe-insulation phakathi kwabaqhubi, ukukhawulezisa ukubola, ukunciphisa ixabiso le-Q, kunye ne-corrode conductors.Ngokuqhelekileyo kwenzeka ukuba inxalenye yensimbi ye-PCB inobhedu oluluhlaza, olubangelwa ukusabela kweekhemikhali zobhedu lwensimbi kunye nomphunga wamanzi kunye ne-oksijini.

Amakhulu ezinto ezingcolisayo ezifunyenwe ngokungaqhelekanga kwiibhodi zesekethe eziprintiweyo zinamandla afanayo okonakalisa.Zinokukhokelela kwiziphumo ezifanayo nokukhukuliseka kokufuma, njengokubola kwe-elektroniki, ukubola kwee-conductor kunye nesekethe emfutshane.Ungcoliseko oluhlala lufumaneka kwisixokelelwano sombane lusenokuba yimichiza eshiyekileyo kwinkqubo.Ezi zingcolisi ziquka ukuguquguquka, i-agent yokukhulula i-solvent, amasuntswana esinyithi kunye ne-inki yokumakisha.

Kukwakho namaqela amakhulu ongcoliseko olubangelwa zizandla zabantu, anje ngegrisi yabantu, iminwe, izithambiso kunye neentsalela zokutya.Zininzi izinto ezingcolisa umoya kwindawo yokusebenza, ezifana nesitshizi setyuwa, isanti, amafutha, iasidi, omnye umphunga omdaka kunye nokungunda.

Kutheni usebenzisa iglue ezintathu zokuqinisekisa (ipeyinti)?

I-PCB egqunywe ngezinto zokugquma ezilungeleleneyo ayinakuba bubungqina bokufuma, ubungqina bothuli kunye nokungangeni manzi, kodwa ikwaneempawu zokumelana nokubanda nobushushu, ukumelana nokwaluphala, ukuxhathisa kwimitha, ukuxhathisa inkungu yetyuwa, ukuxhathisa kwe-ozone, ukuxhathisa ukungcangcazela, ukuguquguquka okuhle kunye nokubambelela okuqinileyo.Xa ichaphazeleka yimiba emibi yendawo yokusebenza, inokunciphisa okanye isuse ukuhla kokusebenza kombane.

Ngenxa yendawo yesicelo eyahlukeneyo yeemveliso ezahlukeneyo zokuphela, iimfuno zokusebenza ze-adhesive ezintathu zobungqina ziya kugxininiswa.Izixhobo zasekhaya ezifana neefriji, oomatshini bokuhlamba kunye nezifudumezi zamanzi zineemfuno eziphezulu zokuxhathisa ukufuma, ngelixa iifeni zangaphandle kunye nezibane zesitrato zifuna ukusebenza kakuhle kwe-anti inkungu.

Indlela yokufaka isicelo ngokukhawuleza nangokufanelekileyoukutyabeka ngokusesikwenikwiPCB?

Kwishishini lokulungisa le-PCB, kukho izixhobo ezizenzekelayo ezizinikezelwe ukugquma ipeyinti ekhuselayo kwiibhodi zesekethe-umatshini wokugquma olungelelanisiweyo, owaziwa ngokuba ngumatshini wokugquma wepeyinti yobungqina abathathu, umatshini wokutshiza wepeyinti yobungqina abathathu, umatshini wokutshiza wepeyinti yobungqina abathathu, ubungqina obuthathu bokutshiza ngepeyinti. umatshini, njl., ezinikele ekulawuleni ulwelo kunye nokugquma umaleko wepeyinti yobungqina obuthathu kumphezulu we-PCB, njengokugquma umaleko we-photoresist kumphezulu we-PCB ngokufakwa, ukutshiza okanye ukusonta.

Umatshini wokugquma ohambelanayo usetyenziselwa ukutshiza ngokuchanekileyo, ukugquma kunye nokuthontsiza iglue, ipeyinti kunye nolunye ulwelo kwinkqubo yemveliso ukuya kwindawo echanekileyo yemveliso nganye.Ingasetyenziselwa ukuzoba imigca, izangqa okanye ii-arcs.

Umatshini wokugquma osesikweni sisixhobo sokutshiza esenzelwe ngokukodwa ukutshiza ipeyinti yobungqina obuthathu.Ngenxa yezinto ezahlukeneyo eziza kutshizwa kunye ne-spraying liquids esetyenzisiweyo, ukukhethwa kwecandelo lomatshini wokugquma kwisakhiwo sezixhobo kukwahluke.Oomatshini abathathu bokugquma ipeyinti bamkela inkqubo yamva nje yolawulo lwekhompyuter, enokuqonda unxibelelwano lwe-axis ezintathu.Ngelo xesha, ixhotywe ngekhamera yokumisa kunye nenkqubo yokulandelela, ekwazi ukulawula ngokuchanekileyo indawo yokutshiza.