SMD yuav muaj ntau yam zoo tsis xws luag tshwm sim, piv txwv li, cov tivthaiv sab ntawm warped khoob solder, kev lag luam hu ua qhov tshwm sim no rau lub monument.
Ib kawg ntawm cov tivthaiv warped yog li ua rau lub monument npliag solder, yog ib tug ntau yam ntawm yog vim li cas rau lub tsim ntawm.Niaj hnub no, peb yuav piav qhia qhov ua rau ntawm qhov tshwm sim thiab qee qhov kev txhim kho.
1.Solder paste tshuab luam ntawvtsis tiaj tus, ib kawg ntawm lub ncoo ntau tin, ib kawg tsawg tin
Qhov no yog lub hauv ntej kawg ntawm lub patch triggered, vim uneven solder paste printing, solder paste printing ntawm ob hnub ntawm lub ncoo tsis yog tib tus nqi, uas ua rau lub sab nraum qab ntawm lub vuam dissolution lub sij hawm tsis zoo li qub, ua rau muaj kev nro. tsis zoo ib yam, thiab yog li ib kawg tau warped rau daim ntawv khoob.
Txoj hauv kev zoo tshaj plaws los txhim kho qhov no yog ntxiv ib qho SPI tom qab lub tshuab luam ntawv tshuab luam ntawv, sim xyuas cov ntawv luam tawm tsis zoo, zam qhov ntws mus rau qhov vuam thiab tom qab ntawd qhov teeb meem, kom lub sijhawm rov ua haujlwm dua thiab tus nqi siab dua.
2.Xaiv thiab tso tshuabmount ob qhov kawg tsis flush los yog offset
Tom qab lubSMD tshuababsorbs qhov kev tso kawm, tej zaum yuav ua rau lub suction nozzle los nqus cov deviation los yog lub koob yees duab nyeem cov me ntsis tus naj npawb qhov chaw qhov tseeb mus deviate vim pub ntawm cov flyer, yog li ua rau qhov kev tso kawm offset, lub ncoo kawg yog muab tso rau ntau tshaj, ib kawg yog tshaj tawm tsawg dua los nthuav tawm rau lub ncoo sab nraud, yog li ua rau lub sij hawm ntawm reflow vuam thaum lub sij hawm kub yaj txawv, nce tin lub sij hawm sib txawv, ua rau sib txawv nro, ua rau warping.
Txoj kev los txhim kho qhov teeb meem no, ntawm ib sab yog tswj lub mounter lub flyer thiab lub koob yees duab tsis tu ncua, tsis txhob absorbing thiab tso deviation.ntawm qhov tod tes, muaj peev xwm kom tau ib qhoSMT AOI tshuab, kuaj xyuas qhov zoo ntawm qhov chaw.
3.Reflow soldering tshuabcub kub nkhaus teeb teeb meem
Reflow soldering nws tus kheej muaj plaub qhov chaw kub, qhov sib txawv ntawm qhov kub thiab txias lub luag hauj lwm yog txawv, nyob rau hauv preheating thiab qhov kub thiab txias theem, ib co Cheebtsam yuav nyob rau hauv ib sab ntawm lub siab dua Cheebtsam, yog li ua rau ib sab yuav tsum tau rhuab tsis zoo, nyob rau hauv lub tshav kub vuam theem, lub kub yog txawv ua rau lub solder paste kub melting lub sij hawm yog txawv, tshwm sawv monument khoob vuam.
Qhov saum toj no peb yog vim li cas yog qhov tshwm sim ntawm cov khoom sib tsoo ntawm cov ntsiav tshuaj 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 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 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
Post lub sij hawm: Aug-10-2022