Sisiphi isizathu sokudityaniswa okungenanto kwamacandelo?

I-SMD iya kuba neziphene ezahlukeneyo zekhwalithi zenzeke, umzekelo, icandelo lecandelo le-solder engenanto ephosakeleyo, imboni ebizwa ngokuba le nto yesikhumbuzo.

Esinye isiphelo secandelo warped ngaloo ndlela ebangela ilitye lesikhumbuzo solder engenanto, na izizathu ezahlukeneyo zokusekwa.Namhlanje, siza kuchaza izizathu zeziganeko kunye namanyathelo athile okuphucula.

1.Umshicileli wokuncamathisela we-Solderayisicaba, enye isiphelo sepadi ingaphezulu, esinye isiphelo sincinci

Esi sisiphelo sangaphambili se-patch yabangela, ngenxa yoshicilelo olungalinganiyo lwe-solder paste, ushicilelo lwe-solder paste kuzo zombini iziphelo zepad alukho umlinganiselo ofanayo, okubangela umva wexesha lokuchithwa kwe-welding akufani, kubangele ukuxhatshazwa. akufani, kwaza kwajijwa isiphelo esinye ukuba sibe yisolder engenanto.

Eyona ndlela ingcono yokuphucula oku kukongeza i-SPI emva komatshini wokushicilela we-solder paste, zama ukufumanisa ukushicilela okubi, ukuphepha ukuhamba kwi-welding kwaye ke ingxaki, ukwenzela ukuba ixesha lokuphinda lisebenze kunye neendleko eziphezulu.

2.Khetha kwaye ubeke umatshiniUkukhupha iziphelo zombini azigungxulwanga okanye azigungxulwanga

Emva kweUmatshini we-SMDIfunxa indawo yokubekwa kwelungu, inokubangela ukuba umlomo wokufunxa ufunxe unxaxha okanye ikhamera ifunde i-bit number yobeko ngokuchanekileyo ukutenxa ngenxa yefidi yeflaya, ngaloo ndlela ikhokelele ekubekweni kweoffset, isiphelo sephedi siposwe ngaphezulu, esinye isiphelo iposwe ngaphantsi ukutyhila kwi pad ngaphandle, ngaloo ndlela ekhokelela kwixesha ukuwelda reflow xa ixesha ukunyibilika eshushu yahlukile, ukunyuka tin ixesha yahlukile, ekhokelela uxinezeleko ezahlukeneyo, ebangela warping.

Indlela yokuphucula le ngxaki, kwelinye icala kukugcina iflaya ye-mounter kunye nekhamera rhoqo, ukuphepha ukufunxa kunye nokubeka ukutenxa.kwelinye icala, kukho uhlahlo lwabiwo-mali lokufumana aUmatshini we-SMT AOI, ukubona umgangatho wokubeka.

3.Reflow soldering machineingxaki yokumisela ijiko lobushushu eziko

I-Reflow soldering ngokwayo ineendawo ezine zokushisa, indima eyahlukileyo yendawo yokushisa iyahluka, kwi-preheating kunye neqondo lokushisa rhoqo, amanye amacandelo anokuthi abekwe ecaleni kwamacandelo aphezulu, ngaloo ndlela abangela ukuba elinye icala litshiswe kakubi, ekungeneni kwinqanaba le-welding yokufudumeza, lobushushu yahlukile ekhokelela solder intlama ubushushu ukunyibilika ixesha yahlukile, ebonakala emi lesikhumbuzo iwelding engenanto.

Ezi zizathu zithathu zingentla zizizathu eziqhelekileyo zamacandelo aguquguqukayo emile ithebhulethi engenanto, ukuba kwinkqubo yokuvelisa, le nto inokuvela kule miba yokusombulula ingxaki.