Printed Circuit Board soldering txheej txheem
1. Kev npaj ua ntej vuam
Ua ntej tshaj plaws, koj yuav tsum paub txog kev sib sau ua ke ntawm cov ntawv luam tawm ntawm lub rooj tsavxwm yuav tsum tau welded, thiab sib tov cov khoom xyaw raws li daim duab kos, xyuas seb tus qauv, qhov tshwj xeeb thiab qhov ntau npaum li cas ntawm cov khoom ua tau raws li qhov yuav tsum tau ua ntawm daim duab kos, thiab ua. kev npaj rau kev tsim cov hlau lead ntawm cov khoom ua ntej sib dhos.
2. Vuam ib ntus
Qhov kev txiav txim ntawm cov khoom sib dhos thiab vuam yog raws li nram no: resistors, capacitors, diodes, triodes, integrated circuits, high-power raj, thiab lwm yam khoom yog thawj me me thiab ces loj.
3. Cov kev xav tau ntawm cov khoom siv vuam
1) Resistor soldering
Ua kom raug teeb tsa lub resistor nyob rau hauv txoj hauj lwm teev raws li daim duab. Nws yuav tsum tau hais tias lub cim yog nce thiab cov lus taw qhia yog zoo ib yam. Tom qab txhim kho tib lub specification, nruab lwm qhov tshwj xeeb, thiab sim ua kom qhov siab ntawm cov resistors zoo ib yam. Tom qab soldering, txiav tawm cov pins tshaj tawm ntawm qhov chaw ntawm lub rooj tsav xwm luam tawm.
2) Capacitor soldering
Nruab lub capacitor nyob rau hauv txoj hauj lwm tshwj xeeb raws li daim duab, thiab xyuam xim rau "ntxiv" thiab "-" ncej ntawm polarized capacitors uas tsis tuaj yeem txuas tsis raug, thiab cov kev taw qhia ntawm lub cim ntawm lub capacitor yuav tsum yooj yim pom. Ua ntej nruab iav glaze capacitors, organic dielectric capacitors, ceramic capacitors, thiab thaum kawg electrolytic capacitors.
3) Diode vuam
Cov ntsiab lus hauv qab no yuav tsum tau them sai sai rau thaum vuam diodes: ua ntej, xyuam xim rau lub polarity ntawm anode thiab cathode, thiab tsis txhob nruab lawv tsis raug; thib ob, tus qauv cim yuav tsum yooj yim pom; thib peb, thaum vuam ntsug diodes, lub sij hawm vuam rau cov hlau lead luv luv yuav tsum tsis pub tshaj 2S.
4) Triode vuam
Ua tib zoo saib xyuas qhov raug tso thiab tso rau ntawm peb txoj hauv kev e, b, thiab c; Lub sij hawm vuam yuav tsum luv li sai tau, thiab cov hlau lead pins yuav tsum tau clamped nrog tweezers thaum lub sij hawm vuam los pab kom cov cua sov dissipation. Thaum vuam lub zog triode, yog tias tsim nyog rau nruab lub dab dej kub, qhov chaw sib cuag yuav tsum flattened, polished thiab du, thiab tom qab ntawd nruj nreem. Yog tias nws yuav tsum tau ntxiv ib zaj duab xis insulating, tsis txhob hnov qab ntxiv ib zaj duab xis. Thaum cov pins yuav tsum tau txuas nrog lub rooj tsav xwm hauv Circuit Court, cov xov hlau yas yuav tsum tau siv.
5) IC vuam
Ua ntej, raws li qhov yuav tsum tau ua ntawm daim duab kos, xyuas seb tus qauv thiab tus pin txoj hauj lwm ua tau raws li qhov yuav tsum tau ua. Thaum soldering, ua ntej solder ob tus pins ntawm ntug kom tso lawv, thiab tom qab ntawd solder ib qho los ntawm sab laug mus rau sab xis los ntawm sab saum toj mus rau hauv qab.
Rau cov capacitors, diodes, thiab triodes nthuav tawm ntawm lub rooj tsav xwm luam tawm, cov pins uas tsis muaj peev xwm yuav tsum tau txiav tawm ntawm lub hauv paus.
