SMT luam ntawv txawm tias tin qhov ua rau thiab kev daws teeb meem

SMT kev ua haujlwm yuav tshwm sim qee qhov teeb meem tsis zoo, xws li sawv ntsug, txawm tias tin, khoob khoob, tsis muaj qhov muag, thiab lwm yam.

Hnub no nrog koj los qhia txog SMT luam ntawv txawm tias tin qhov ua rau thiab kev daws teeb meem.

SMT txawm tias tin yog dab tsi?

Los ntawm lub ntsiab lus ntawm lub tswv yim ntawm tin tuaj yeem nkag siab zoo, yog kwv yees li cov ntaub ntawv uas nyob ib sab tshwm sim dhau tin, tsim kev sib txuas, cov ntaub qhwv sib txawv los yog cov kab, los ntawm cov tin ntau tshaj txuas ua ke, tseem hu ua tin choj.

Cov hauv qab no yog SMT txawm tias yog vim li cas tin thiab txhim kho kev tiv thaiv:.

1.Poor adhesion ntawm solder paste

Solder paste yog ua los ntawm tin hmoov thiab flux ua ke, nyob rau hauv lub unpacked ua ntej siv yuav muab tso rau hauv lub tub yees, thaum yuav tsum tau siv, nws yog tsim nyog los ua kom sov li thiab do tusyees ua ntej, tshwm sim txawm tin yog vim tsis zoo viscosity. ntawm paste, tej zaum yuav rov qab mus rau qhov kub thiab txias los yog stirring lub sij hawm tsis txaus.

Kev ntsuas kev txhim kho

Ua ntej siv, sov so lub paste rau ntau tshaj 30 feeb thiab do sib npaug kom txog thaum lub paste tsis tawg.Ntau thiab ntau lub chaw tsim khoom loj tam sim no siv cov khoom siv ntse ntse muab tshuaj xyuas cov khoom, uas tuaj yeem txhim kho qhov teeb meem no.

2.Stencil qhib tsis meej txaus

Stencil yuav tsum tau siv rau lub patching, stencil yog tiag tiag lub pcb ncoo xau, yuav tsum tau ua nrog lub pcb ncoo loj thiab loj, qhov chaw, ib co stencil ntau lawm tsis xws luag, tej zaum yuav muaj ntau heev qhib, uas ua rau kom cov nyiaj ntawm cov stencil. luam solder paste ntau dhau, muaj kev hloov pauv hloov ua rau cov tin.

Txhim kho kev tiv thaiv

Cov stencil yuav tsum tau ua tib zoo tshuaj xyuas cov ntaub ntawv Gerber, thiab lub laser yuav tsum tau siv los qhib lub stencil, thaum lub stencil qhib (tshwj xeeb tshaj yog rau cov ntaub qhwv nrog pins) yuav tsum yog ib lub quarter me dua li cov ntaub ntawv tiag tiag.

3.Solder paste tshuab luam ntawvluam ntawv, pcb board zoo li xoob

PCB pads rau luam ntawv solder paste, yuav tsum tau siv lub tshuab luam ntawv tshuab luam ntawv, tshuab luam ntawv tshuab luam ntawv muaj lub rooj rau PCB solder paste luam ntawv thiab demoulding, hauv PCB pad solder paste luam ntawv, PCB yuav tsum tau hloov mus rau lub rooj teev qhov chaw, thiab qhov kev xav tau ntawm fixture fixture pcb board, yog hais tias tus hloov txoj hauj lwm sib txawv, fixture tsis clamp pcb, yuav tshwm sim luam tawm offset, tsim txawm tin.

Kev ntsuas kev txhim kho

Thaum luam ntawv solder paste rau ntawm lub tshuab luam ntawv solder paste, koj yuav tsum tau debug qhov kev pab cuam ua ntej kom lub pcb hloov txoj hauj lwm yog qhov tseeb, thiab lub fixture yuav tsum tsis tu ncua xyuas thiab hloov kho.

Cov yam ntxwv saum toj no, txhawm rau kom tsis txhob muaj qhov tshwm sim ntawm cov tin thiab lwm yam tsis zoo, yuav tsum tau ua txoj haujlwm zoo hauv kev ua pov thawj thaum ntxov, tab sis kuj tseem nyob rau sab nraub qaum ntawm lub tshuab luam ntawv ntxiv.SMT SPI tshuab nrhiav kom tau, kom deb li deb tau los txo tus nqi phem.

Nta ntawmNeoDen ND1stencil tshuab luam ntawv

Hloov cov kev taw qhia Sab laug - Txoj Cai, Txoj Cai - Sab laug, Sab laug - Sab laug, Txoj Cai - Txoj Cai

Transmission mode Seem-type track

PCB clamp hom

Software adjustable siab ntawm elastic sab siab

Kev xaiv:

1. Zuag qhia tag nrho hauv qab suction chamber nqus tsev vacuum

2. Hauv qab multipoint ib nrab lub tshuab nqus tsev

3. Ntug xauv clamping phaj

Kev them nyiaj yug Board txoj kev sib nqus thimble, tshwj xeeb ua haujlwm tuav ntaus ntawv (xaiv: Grid-Lok)