Okokuqala, kufanele sazi ukuthi kulayini wokukhiqiza we-SMT, iumshini wokuphrinta wokunamathisela othomathikhi we-solderidinga ukunemba okuphezulu kakhulu, umphumela wokudambisa we-solder unama muhle, inqubo yokuphrinta izinzile, ilungele ukuphrinta izingxenye ezihlukaniswe ngezikhala.Ububi ukuthi izindleko zokunakekela ziphezulu futhi nezinga lolwazi lwabasebenzisi liphezulu.
1. Lapho scraper of theUmshini wokuphrinta we-SMTiqhubekela phambili ngesivinini esithile kanye ne-Angle, izokhiqiza ingcindezi ethile ku-solder unama, okuzocindezela unamathisele we-solder ukuze ugoqe phambi kwe-scraper futhi ukhiqize ingcindezi edingekayo ukuze ujove ukunamathisela kwe-solder ku-mesh noma imbobo yokuvuza;
2. I-adhesive friction force ye-solder paste ibangela ukushear kwe-solder paste lapho kuhlangana khona i-scraper ne-net plateIphrinta ye-stencil ye-SMT.I-shear force inciphisa i-viscosity ye-solder paste, ehambisana nokujova okubushelelezi kwe-solder paste ekuvuleni noma ukuvuza kwesifanekiso.Kunobudlelwane obuthile obunomkhawulo phakathi kwejubane leblade, ingcindezi yeblade, i-engeli yeblade enethempulethi, nokunamathisela i-viscosity.Ngakho-ke, izinga lokuphrinta lokunamathisela kwe-solder lingaqinisekiswa kuphela uma le mingcele ilawulwa kahle.
3. Lapho i-blade iqhubekela phambili ngesivinini esithile kanye ne-Angle, i-butt paste ikhiqiza ingcindezi ethile, ikhuthaze ukunamathisela kwe-solder ngaphambi kwe-roller ye-scraper, izokhiqiza unamathisele we-solder ekuvuleni kwe-mesh (isifanekiso) ingcindezi edingekayo, i-solder paste i-viscosity friction ukwenza i-solder. namathisela ekuvuleni kwe-scraper kanye neshidi lokudlulisa i-shear (isifanekiso), i-shear force yenza i-viscosity yokunamathisela ye-solder yehle, ngaleyo ndlela iphumelele ku-mesh;Lapho i-scraper ishiya ukuvulwa kwesifanekiso, i-viscosity yokunamathisela ibuyela ngokushesha esimweni sokuqala.
Lapho sisebenza, kuphela lapho i-solder paste igingqika phambi kwe-scraper, ingakhiqiza ingcindezi yokujova unamathisele we-solder ekuvuleni;Inani lokunamathisela kwe-solder linqunywa izinga lokunamathisela kwe-solder eligcwalisa ukuvulwa kwesifanekiso, futhi ubuqotho bokudiliza bunquma ukuvuza kokunamathisela kwe-solder kanye nobuqotho bephethini yokunamathisela ye-solder.
Isikhathi sokuthumela: Apr-14-2021