Ukufuma yeyona nto ixhaphakileyo kwaye eyonakalisayo kwiibhodi zesekethe zePCB.Ukufuma okugqithisileyo kuya kunciphisa kakhulu ukunyanzeliswa kwe-insulation phakathi kwabaqhubi, ukukhawulezisa ukubola kwesantya esiphezulu, ukunciphisa ixabiso le-Q, kunye ne-corrode conductors.Sihlala sibona i-patina kwindawo yentsimbi yeebhodi zesekethe ze-PCB, ezibangelwa ukusabela kweekhemikhali phakathi kobhedu lwesinyithi kunye nomphunga wamanzi kunye ne-oksijini engagqunywanga ngepeyinti ehambelanayo.
Kwaye amakhulu ongcoliseko afunyenwe ngokungacwangciswanga kwiibhodi zesekethe eziprintiweyo anokonakalisa ngokufanayo.Zisenokubangela iziphumo ezifanayo nokuhlaselwa kokufuma—ukubola kwe-electron, ukubola kweeconductor, kwaneendlela ezimfutshane ezingenakulungiseka.Ungcoliseko oluxhaphakileyo olufumaneka kwiinkqubo zombane lusenokuba yimichiza eshiyekileyo kwinkqubo yokwenziwa.Imizekelo yolu ngcoliseko lubandakanya i-fluxes, i-solvent release agents, iincinci zetsimbi kunye neenki zokumakisha.Kukwakho namaqela amakhulu osulelo olubangelwa kukuphathwa kwabantu ngokungakhathali, njengeoyile yomzimba womntu, iminwe, izithambiso kunye neentsalela zokutya.Kukwakho nezinto ezingcolisa indalo ezininzi kwindawo yokusebenza, ezifana nesitshizi setyuwa, isanti, amafutha, iasidi, omnye umphunga ongcolisayo kunye nokungunda.
Ukufakwa kwepeyinti ehambelanayo kwiibhodi zeesekethe eziprintiweyo kunye namacandelo kunokunciphisa okanye kuphelise ukuthotywa kokusebenza kwe-elektroniki xa banokuchaphazeleka ngezinto ezimbi kwindawo yokusebenza.Ukuba olu hlobo lweengubo lunokugcina umphumo walo kwixesha elanelisayo, elifana nexesha elide kunobomi benkonzo yemveliso, lunokuthathwa njengolufezekise injongo yalo yokugubungela.
Umatshini wokugquma ochasene nepeyinti ngokusesikweni
Nokuba umaleko wokugquma ubhityile kakhulu, unokumelana nokungcangcazela komatshini kunye ne-swing, ukothuka kwe-thermal, kunye nokusebenza kumaqondo obushushu aphezulu ukuya kumlinganiselo othile.Ngokuqinisekileyo, akulunganga ukucinga ukuba iifilimu zingasetyenziselwa ukunika amandla omatshini okanye ukugquma okwaneleyo kumacandelo athile afakwe kwibhodi yesekethe eprintiweyo.Amalungu kufuneka afakwe ngoomatshini kwaye kufuneka abe nezawo iicaulks ezifanelekileyo, ngoko ke kukho i-inshurensi ephindwe kabini ngokuchasene neengozi.
1. I-solvent equlathe i-acrylic resin conformal anti-peint (okwangoku yeyona mveliso isetyenziswayo nethandwayo kwimarike).
Iimpawu: Ineempawu zokumisa umphezulu, ixesha lokunyanga ngokukhawuleza, iimpawu ezintle ezinobungqina obuthathu, ixabiso elincinci, umbala ocacileyo, ukuthungwa okuguquguqukayo kunye nokulungiswa lula.
2. Ipeyinti ehambelanayo ne-acrylic resin ene-solvent-free.
Iimpawu: Ukunyanga kwe-UV, kunokomiswa kwimizuzwana embalwa ukuya kwimizuzwana engaphezu kweshumi, umbala uyabonakala, ukuthungwa kunzima, kunye nokumelana nokubola kweekhemikhali kunye nokunxiba kukwalungile kakhulu.
3. Ipeyinti ehambelana ne-polyurethane.
Iimpawu: i-brittle texture kunye nokumelana ne-solvent egqwesileyo.Ukongeza ekusebenzeni kwayo okugqwesileyo kobumanzi, ikwanomsebenzi ozinzileyo kwiindawo eziphantsi kobushushu.
4. Ipeyinti ye-silicone ehambelanayo.
Iimpawu: Izinto ezithambileyo zokugquma, ukukhululeka koxinzelelo olulungileyo, ukumelana nobushushu obuphezulu be-degrees ezingama-200, kulula ukuyilungisa.
Ukongezelela, kwimbono yexabiso kunye nokusebenza, kukho kwakhona i-crossover phenomenon phakathi kwezi ntlobo zingentla zeengubo ezihambelanayo, ezifana ne-silicone-modified conformal coatings.
Ixesha lokuposa: Oct-23-2023