Ukuphucula njani isivuno se-soldering ye-CSP ye-fine-pitch kunye namanye amacandelo?Ziziphi iingenelo kunye nokungalunganga kweentlobo ze-welding ezifana ne-welding air eshushu kunye ne-IR welding?Ukongeza kwi-solder ye-wave, ngaba ikhona enye inkqubo yokuthengisa izinto ze-PTH?Indlela yokukhetha ubushushu obuphezulu kunye nomgangatho ophantsi we-solder paste?
I-Welding yinkqubo ebalulekileyo kwindibano yeebhodi ze-elektroniki.Ukuba ayilawulwa kakuhle, kungekhona nje ukungaphumeleli kwexesha elifutshane kuya kwenzeka, kodwa kunye nobomi bamalungu e-solder buya kuchaphazeleka ngokuthe ngqo.
Itekhnoloji ye-reflow soldering ayiyonto intsha kwicandelo lokwenziwa kwe-elektroniki.Amacandelo kwiibhodi ezahlukeneyo zePCBA ezisetyenziswa kwii-smartphones zethu zithengiswa kwibhodi yesekethe ngale nkqubo.I-SMT i-reflow soldering yenziwa ngokunyibilikisa i-solder ebekwe ngaphambili I-Solder joints, indlela yokudibanisa engabandakanyi nayiphi na i-solder eyongezelelweyo ngexesha lenkqubo yokudibanisa.Ngokusebenzisa umjikelo wokufudumeza ngaphakathi kwesixhobo, umoya okanye initrogen ifudunyezwe kwiqondo lobushushu eliphezulu ngokwaneleyo kwaye emva koko ivuthelwe kwibhodi yesekethe apho amacandelo ancanyathiselwe, ukuze amacandelo amabini I-solder paste solder ecaleni iyanyibilika kwaye idityaniswe ibhodi yomama.Inzuzo yale nkqubo kukuba ubushushu bulula ukulawula, i-oxidation inokuphetshwa ngexesha lenkqubo ye-soldering, kwaye iindleko zokuvelisa nazo zilula ukulawula.
I-Reflow soldering iye yaba yinkqubo ephambili ye-SMT.Uninzi lwamacandelo kwiibhodi zethu ze-smartphone zithengiswa kwibhodi yesekethe ngale nkqubo.Ukusabela ngokomzimba phantsi kokuhamba komoya ukufikelela kwi-welding ye-SMD;isizathu sokuba kuthiwe "i-reflow soldering" kukuba igesi ijikeleza kumatshini we-welding ukuvelisa ukushisa okuphezulu ukufezekisa injongo ye-welding.
Isixhobo sokuthengisa i-Reflow sisixhobo esiphambili kwinkqubo yendibano ye-SMT.Umgangatho odibeneyo we-solder we-PCBA yokuxubha ixhomekeke ngokupheleleyo ekusebenzeni kwezixhobo zokuphinda zifakwe kwi-solder kunye nokumisela ijika lobushushu.
Itekhnoloji ye-reflow soldering iye yafumana iindlela ezahlukeneyo zophuhliso, ezinje ngokufudumeza kwemitha yemitha, ukufudumeza kwetyhubhu ye-quartz infrared, ukufudumeza komoya oshushu, ukufudumeza komoya okunyanzeliswayo, ukufudumeza komoya okunyanzeliswayo kunye nokukhuselwa kwenitrogen, njl.
Ukuphuculwa kweemfuno zenkqubo yokupholisa ye-reflow soldering ikwakhuthaza uphuhliso lwendawo yokupholisa yezixhobo zokuphinda zifakwe kwi-solder.Indawo yokupholisa ipholiswe ngokwemvelo kwiqondo lokushisa, i-air-cooled kwisistim epholileyo yamanzi eyenzelwe ukulungelelanisa i-solder-free soldering.
Ngenxa yokuphuculwa kwenkqubo yokuvelisa, izixhobo zokuphinda zifakwe kwi-soldering zineemfuno eziphezulu zokuchaneka kokulawula ubushushu, ukufana kweqondo lokushisa kwindawo yokushisa, kunye nesantya sokuhambisa.Ukusukela kwiindawo ezintathu zobushushu bokuqala, iinkqubo zokuwelda ezahlukeneyo ezifana neendawo zobushushu ezintlanu, iindawo zobushushu ezintandathu, iindawo zobushushu ezisixhenxe, iindawo ezisibhozo zobushushu, kunye neendawo ezilishumi zobushushu ziye zaphuhliswa.
Ngenxa ye-miniaturization eqhubekayo yeemveliso ze-elektroniki, amacandelo e-chip avele, kwaye indlela ye-welding yendabuko ayinakukwazi ukuhlangabezana neemfuno.Okokuqala, inkqubo ye-reflow soldering isetyenziswe kwindibano yeesekethe ezidibeneyo ezidibeneyo.Uninzi lwamacandelo adityanisiweyo kunye ne-welded zi-chip capacitors, i-chip inductors, i-mount transistors kunye ne-diode.Ngophuhliso lweteknoloji ye-SMT epheleleyo ngakumbi nangakumbi, iindidi ze-chip (SMC) kunye nezixhobo zokukhwela (i-SMD) zivela, kwaye inkqubo yokuthengisa iteknoloji ye-reflow kunye nezixhobo njengenxalenye yeteknoloji yokunyuka nayo iye yaphuhliswa ngokufanelekileyo. kwaye ukusetyenziswa kwayo kuya kusiba banzi.Isetyenziswe phantse kuwo onke amasimi emveliso ye-elektroniki, kwaye itekhnoloji ye-reflow soldering nayo idlule kula manqanaba alandelayo ophuhliso malunga nokuphuculwa kwezixhobo.
Ixesha lokuposa: Dec-05-2022