Ijika elihle le-reflux kufanele libe ijika lokushisa elingafinyelela ukushisela okuhle kwezingxenye ezihlukahlukene zokukhweza phezulu ebhodini le-PCB ukuze lishiselwe, futhi i-solder joint ayinayo kuphela ikhwalithi yokubukeka enhle kodwa futhi nekhwalithi enhle yangaphakathi.Ukuze kuzuzwe ijika lokushisa lokugeleza kabusha elingenamthofu elihle, kunobudlelwano obuthile nazo zonke izinqubo zokukhiqiza zokugeleza kabusha okunganomthofu.Ngezansi, i-Chengyuan Automation izokhuluma ngezizathu zokushisela okubi okubandayo noma ukumanziswa kwezindawo zokugeleza ezingenamthofu.
Enqubweni yokushisela ye-lead-free reflow welding, kunomehluko obalulekile phakathi kokucwebezela okufiphele kwamajoyinti e-solder-free reflow solder kanye nesenzakalo esibuthuntu esibangelwa ukuncibilika okungaphelele kwe-solder paste.Lapho ibhodi eliboshwe nge-solder paste lidlula esithandweni sokushisa okuphezulu kwegesi, uma izinga lokushisa eliphakeme le-solder paste lingenakufinyelelwa noma isikhathi se-reflux singanele, umsebenzi we-flux ngeke ukhululwe, futhi ama-oxides kanye ezinye izinto ezingaphezulu kwephedi ye-solder kanye nephinikhodi yengxenye ayikwazi ukuhlanzwa, okuholela ekumanzini okungekuhle ngesikhathi sokushisela okugeleza kabusha okungenayo umthofu.
Isimo esibi nakakhulu ukuthi ngenxa yokushisa okunganele kwesethi, izinga lokushisa lokushisela le-solder linama phezu kwebhodi lesifunda alikwazi ukufinyelela izinga lokushisa okufanele lifinyelelwe ukuze i-solder yensimbi ekunamathisele i-solder ishintshe isigaba, okuyinto. kuholela entweni yokushisela ebandayo endaweni yokushisela engenawo umthofu.Noma ngenxa yokuthi izinga lokushisa azanele, okunye ukuguquguquka okuyinsalela ngaphakathi kwe-solder paste ayikwazi ukuvuthwa, futhi kuncipha ngaphakathi kwejoyinti le-solder lapho selipholile, okuholela ekucwebezeleni okufiphele kwejoyinti le-solder.Ngakolunye uhlangothi, ngenxa yezakhiwo ezimbi ze-solder paste ngokwayo, ngisho noma ezinye izimo ezifanele zingahlangabezana nezidingo zejika lokushisa lokungena kwe-lead-free reflow welding, izakhiwo zemishini kanye nokubukeka kwejoyinti le-solder ngemuva kokushisela akukwazi ukuhlangabezana izidingo zenqubo yokushisela.
Isikhathi sokuthumela: Jan-03-2024