Kev piav qhia ntawm SPI thiab AOI hauv SMT txheej txheem

AOI, ib qho khoom siv kho qhov muag tsis siv neeg, yog siv los kuaj xyuas qhov zoo ntawm cov tshuab luam ntawv thiab tshuaj xyuas thiab tswj cov txheej txheem luam ntawv, txheeb xyuas cov peev txheej uas ua rau muaj qhov sib txawv ua ntej qhov zoo tshaj qhov ntau. AOI kuaj xyuas qhov tsis zoo ntawm kev teeb tsa thiab vuam, xws li kev tswj tsis tau ntawm lub tshuab luam ntawv. Los ntawm kev sib piv cov duab zoo thiab tsis zoo, nyob rau hauv cov teeb pom kev sib txawv, qhov tsis xws luag yuav nthuav tawm cov duab sib txawv, xws li luv luv, offset, thiab qeeb qeeb. Tom qab ntawd ua cov kev hloov kho raws sij hawm siv cov duab sib piv.

SPI (Solder paste soj ntsuam), txheeb xyuas qhov sib txawv ntawm cov kev hloov pauv zoo thiab muab cov lus qhia txog cov yam ntxwv uas tsis zoo. SPI yog hais txog cov kev tshuaj ntsuam xyuas cov tshuaj nplaum, tseem hu ua kev tshuaj xyuas tsis siv neeg kho qhov muag. Hauv SMT cov txheej txheem tsim khoom, yuav muaj ntau hom kev teeb tsa thiab vuam tsis xws luag, thaum AOI kuaj xyuas cov cuab yeej siv thiab cov pob qij txha, uas tsis muaj txiaj ntsig thiab ua rau kev saib xyuas. Niaj hnub no, cov khoom siv hluav taws xob tau dhau los ua me thiab me dua vim muaj cov yam ntxwv xws li tombstones thiab solder paste hloov pauv. Los ntawm kev tshuaj xyuas cov khoom sib koom ua ke, cov khoom tsis raug xws li qhov tsis raug, qhov tshwm sim tsis zoo, tib neeg cov yam ntxwv, qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. SPI tuaj yeem qhia rau cov neeg siv khoom paub tias SPI yog qhov kev tshuaj xyuas zoo rau kev luam ntawv thiab kev txheeb xyuas thiab tswj cov txheej txheem luam ntawv. Nws lub luag haujlwm tseem ceeb yog txhawm rau tshawb xyuas qhov tsis xws luag hauv kev luam ntawv zoo.

Qhov txawv ntawm SPI thiab AOI

Kev tswj kom zoo:

Qee qhov tsis xws luag uas feem ntau saib tsis tau thaum lub sijhawm kev tshuaj xyuas kev pom muaj xws li: cov khoom siv misalignment, tsis txaus soldering, luv luv Circuit Court ntawm cov pob qij txha, faulty soldering, tivthaiv rov qab, tivthaiv misalignment, tivthaiv deformation, tivthaiv tsis muaj, thiab tivthaiv erection.

Cov txheej txheem tswj

AOI tau nruab nrog cov ntaub ntawv txheeb xyuas lub davhlau ya nyob twg (IAT) txhawm rau saib xyuas qhov zoo ntawm cov pob qij txha hauv lub sijhawm tiag tiag, tsim Daim Ntawv Qhia hauv lub sijhawm, thiab pub rov qab hom thiab zaus ntawm kev ua tsis tiav thiab lwm yam ntaub ntawv rau lub tuam tsev tswj kev tsim khoom hauv lub sijhawm, yog li tias lub tuam tsev tuaj yeem pom cov teeb meem hauv cov txheej txheem tsim khoom hauv lub sijhawm thiab kho lawv sai li sai tau, txhawm rau txo qhov poob ntawm lub sijhawm thiab cov khoom siv.

Txheej txheem parameter pov thawj thiab lwm yam

Rau ib hom tshiab ntawm ib lub rooj tsavxwm yuav tsum tau ua tiav, los ntawm cov txheej txheem luam ntawv mus rau reflow soldering txheej txheem tsis, yuav tsum tau ceev faj modulation. Qhov laj thawj ntawm cov kev ntsuas no thaum kawg yog nyob ntawm qhov zoo ntawm vuam, thiab cov txheej txheem no yuav tsum tau ua ntau yam kev ntsuam xyuas kom ua tiav. AOI muab txoj hauv kev zoo los txheeb xyuas cov txiaj ntsig kev sim.

Tom qab SPI tau thov rau lub tshuab luam ntawv, kev tshuaj xyuas zoo ntawm cov tshuab luam ntawv thiab cov ntawv pov thawj thiab tswj cov txheej txheem luam ntawv tsis raug.

Khoom SPI ua lub luag haujlwm tseem ceeb hauv tag nrho SMT ntau lawm. AOI tau muab faib ua ob hom: ua ntej rauv thiab tom qab qhov cub, nrog rau cov cuab yeej tshawb nrhiav yav dhau los thiab tom qab kuaj cov pob qij txha.