Enqubweni yokuhlanganisa i-PCB surface-mount, iphepha lokusula i-stencil liyindlela ehlanzekile esetshenziswa njalo esiteshini sokuphrinta, kodwa futhi liyisici esithinta isivuno esivame ukunganakwa. Iphepha lokusula elinongqimba olulodwa elingabizi elitholakala emakethe alinawo amandla anele okubopha i-fibre; uma licwiliswa kwisisombululo sokuhlanza se-IPA ukuze kusulwe izinsalela ze-solder paste ngaphansi kwe-stencil, livame kakhulu ukusula izinhlayiya ezincane ze-fibre. Lezi zinhlayiya ezicolekile kakhulu zingangena ngaphakathi kwezimbobo zama-stencil acolekile, okuholela ekuvulekeni okuvalekile ngemva kokukhiqizwa isikhathi eside. Lokhu kuphumela ezifweni ezifana nokunganeli kwe-solder, i-bridging kanye namabhola okusula. Ukumiswa njalo kokukhiqiza kokuhlanza i-stencil kunciphisa ukusebenza kahle kokukhiqiza komugqa futhi kwandisa izindleko zenkampani zezinto ezisetshenziswayo kanye nomsebenzi.
Ukubhekana nenselele embonini yonke yokucinywa kwefayibha kanye nokuvinjelwa kwe-stencil, iphepha lethu elikhethekile lokusula i-spunlace stencil linesakhiwo se-substrate esithuthukisiwe, linikeza izinzuzo eziningi ezisebenzayo:
Isakhiwo esihlanganisiwe se-spunlace esinezingqimba ezimbili, esibunjwe njengesiqeshana esisodwa ngaphandle kokunamathela ngokweqile;
Ayinawo uthuli oluningi futhi ayinayo i-lint, futhi ayinayo i-fiber eningi ngesikhathi sokusula;
Isakhiwo esinezimbobo esinikeza ukumuncwa okunamandla koketshezi kanye namakhono okubopha ukungcola, simunca ngempumelelo i-solder paste kanye nezinsalela ze-flux;
Itholakala ngobubanzi obuhlukahlukene, ngosayizi abayisisekelo abangenziwa ngezifiso ukuze ivumelane namaphrinta ajwayelekile azenzakalelayo njenge-DEK ne-MPM;
Ukuhambisana kahle kwamakhemikhali; akuboli noma kukhiphe ukungcola ngisho noma kuthintana isikhathi eside ne-IPA kanye nezincibilikisi zokuhlanza ezahlukahlukene.
Izakhiwo eziphansi zothuli kanye nokungabi nalutho yizici eziyinhloko ezihlukanisa iphepha lokusula le-SMT elisezingeni eliphezulu emikhiqizweni evamile. Lo mkhiqizo usebenzisa i-filament polyester ehlanganiswe nenqubo yokubopha i-spunlace esebenzisa i-virgin wood pulp, ngaphandle kokusebenzisa izinamathiselo zamakhemikhali, ukuqinisekisa ukuthi imicu ihlala iboshwe ngokuqinile ezimweni ezomile nezimanzi. Lapho usula ama-stencil, akukho lutho noma udoti okhiqizwayo; izinsalela ezincane zethini kanye ne-flux powder zivaleleke ngaphakathi kwezikhala zangaphakathi zephepha, okuvimbela udoti ukuthi uhlale ezimbotsheni ze-stencil noma uhlakazeke kulo lonke igumbi lokuhlanza. Ifanelekela imigqa yokukhiqiza ye-SMT yegumbi lokuhlanza le-Class 1,000 kanye ne-Class 10,000, inciphisa ukukhubazeka kokubekwa okubangelwa ukuvinjelwa kwe-stencil ngenxa yodoti wephepha, inciphisa imvamisa yokungasebenzi kokuhlanza, futhi izinzisa amazinga okukhiqiza.
Leli phepha lokusula elingenazintuli lisetshenziswa kabanzi emigqeni yokukhiqiza yama-elekthronikhi abathengi, amabhodi amasha wesekethe yamandla kanye nokubekwa kwe-chip enembile. Lifanele kokubili ukusula ngesandla okuzenzakalelayo kanye nokusula okuqhubekayo, okuphindaphindayo emishinini yokuphrinta ezenzakalelayo ngokuphelele. Izixazululo ezenziwe ngokwezifiso ngobukhulu obuhlukahlukene zingalungiswa ukuze zifane nemishini ekhona yenkampani, kususwe isidingo sokushintsha amamodeli omshini, izinto ezisetshenziswayo noma izesekeli; izinto ezilwa nokuncibilika azidabuki, zinikeza amandla okuhlanza aphezulu nge-wipe ngayinye futhi zinciphisa imvamisa yokushintsha okudliwayo esikhathini eside.
Kubakhiqizi be-SMT, iphepha lokusula i-stencil elibonakala lingavamile linomthelela oqondile ekuvuneni kokubekwa. Ukukhetha iphepha lokusula i-spunlace elinezingqimba ezimbili elinothuli oluphansi, elimunca kakhulu kunganciphisa inkinga yokuvaleka kwe-stencil pore emthonjeni, ngaleyo ndlela kusekelwe ukuphathwa kokuhlanzeka okujwayelekile eshabhu.
Isikhathi sokuthunyelwe: Julayi-20-2026