SMT pad tsim yog ib feem tseem ceeb ntawm PCB tsim. Nws txiav txim siab txoj haujlwm soldering ntawm cov khoom ntawm PCB, kev ntseeg siab ntawm cov pob qij txha, cov kev tsis sib haum xeeb uas yuav tshwm sim thaum lub sij hawm soldering, qhov tseeb, kev kuaj xyuas thiab kev tuav pov hwm tos ua lub luag haujlwm tseem ceeb. Yog hais tias tus PCB ncoo tsim yog lawm, ib tug me me ntawm skew thaum lub sij hawm mounting yuav raug kho vim nws tus kheej-correction nyhuv ntawm lub nto nro ntawm lub molten solder thaum reflow soldering. Ntawm qhov tsis sib xws, yog tias PCB pad tsim tsis raug, txawm tias qhov chaw tso kawm yog qhov tseeb, yuav muaj qhov tsis xws luag xws li kev hloov pauv thiab tombstone tom qab reflow soldering. Yog li ntawd, kev tsim cov ncoo yog ib qho tseem ceeb ntawm kev txiav txim siab kev tsim khoom ntawm cov khoom siv saum npoo av. Cov ntaub qhwv ib txwm yog “cov kab mob sib kis thiab nquag tshwm sim” hauv PCB tsim, thiab nws kuj yog ib qho tseem ceeb uas ua rau muaj kev phom sij zais hauv PCB soldering zoo.

Dab tsi yog qhov cuam tshuam ntawm cov ntaub qhwv hauv PCB soldering zoo

1. Tom qab cov chips tau soldered nyob rau tib lub ncoo, yog hais tias tus pin plug-in Cheebtsam los yog thaiv yog soldered dua, muaj ib tug zais kev phom sij ntawm cuav soldering thaum lub sij hawm thib ob soldering.

2. Tus naj npawb ntawm kev kho thaum lub sij hawm tom ntej commissioning, kuaj thiab kev saib xyuas tom qab muag yog txwv.

3. Thaum kho, unsoldering ib feem, cov khoom nyob ib puag ncig ntawm tib lub ncoo yog tag nrho unsoldered.

4. Thaum lub ncoo siv ntau zaus, qhov kev ntxhov siab ntawm lub ncoo loj heev, ua rau lub ncoo tev tawm thaum lub sij hawm soldering.

5. Tib lub ncoo yog sib koom ntawm cov khoom, cov tin yog ntau dhau, qhov nro ntawm qhov chaw yog asymmetric tom qab melting, cov khoom raug rub mus rau ib sab, ua rau kev hloov pauv lossis tombstones.

6. Zoo ib yam li kev siv cov khoom siv tsis zoo ntawm lwm cov ntaub qhwv, lub ntsiab yog vim li cas tsuas yog cov yam ntxwv ntawm lub voj voog raug txiav txim siab thiab thaj chaw lossis qhov chaw muaj kev txwv, uas ua rau muaj ntau yam kev teeb tsa thiab kev sib koom ua ke tsis zoo hauv kev sib dhos thiab vuam txheej txheem. , uas thaum kawg cuam tshuam qhov kev cia siab ntawm Circuit Court. Kev cuam tshuam loj.