Muaj ntau txoj hauv kev ntawm soldering ua nrog hluav taws xob soldering hlau rau ntawm lub rooj tsav xwm luam tawm.
Printed circuit boards tau muab faib ua ob hom: ib sab thiab ob sab. Qhov los ntawm qhov ntawm nws feem ntau tsis yog xim hlau, tab sis txhawm rau ua kom cov khoom siv ruaj khov thiab ruaj khov rau hauv lub rooj tsav xwm, feem ntau ntawm cov qhov ntawm cov ntawv luam tawm Circuit Board hauv cov khoom siv hluav taws xob tam sim no metallized. Txoj kev ntawm soldering coj mus rau ib lub vaj huam sib luag tsis tu ncua:
(1) Ncaj shear taub hau. Cov hlau lead hla ncaj qha los ntawm lub qhov, thiab thaum lub sij hawm vuam, qhov tsim nyog tus nqi ntawm melted solder tusyees nyob ib ncig ntawm lub tinned txhuas hlau saum lub solder ncoo, tsim ib tug conical zoo. Tom qab nws txias thiab solidifies, txiav tawm cov hlau lead ntau dhau. (Txoj kev tshwj xeeb tuaj yeem pom ntawm lub blackboard)
(2) faus koj lub taub hau ncaj qha. Cov hlau lead uas dhau los ntawm qhov-qhov tsuas yog qhia qhov ntev uas tsim nyog, thiab cov hlau yaj uas tau faus cov hlau lead hauv qhov sib koom ua ke. Hom kev sib koom tes no yog kwv yees li hemispherical nyob rau hauv cov duab, txawm hais tias nws yog qhov zoo nkauj, yuav tsum tau them nyiaj tshwj xeeb rau kev tiv thaiv kev tsis ncaj ncees.
Tiv thaiv vuam tsis xws luag
Vuam thev naus laus zis yog ib qho txuj ci tseem ceeb uas cov neeg nyiam xov tooj cua yuav tsum paub, thiab yuav tsum tau xyaum ua kom txawj ntse.
1. Thaum xaiv cov solder tsim nyog, cov khoom siv hluav taws xob tsawg yuav tsum tau siv rau cov khoom siv hluav taws xob.
2. Soldering flux, yaj 25% rosin hauv 75% cawv los ntawm qhov hnyav raws li cov flux.
3. Ua ntej siv hluav taws xob soldering hlau, tin yuav tsum tau siv. Txoj kev tshwj xeeb yog kom sov cov hlau soldering, thiab thaum nws tsuas yog yaj lub solder, thov flux, thiab ces sib npaug ntawm cov hlau taub hau nrog solder, kom lub taub hau hlau tuaj yeem noj ib txheej ntawm cov hlau sib npaug.
4. Vuam txoj kev: Polish lub solder pads thiab pins ntawm lub Cheebtsam nrog zoo sandpaper thiab siv flux. Npog tus nqi tsim nyog ntawm solder nrog lub taub hau hlau, kov cov hlua khi, thiab tos kom tag nrho cov solder ntawm qhov sib koom ua ke kom yaj thiab muab cov hmoov txhuas. Tom qab ntawd, maj mam nqa lub taub hau rau ntawm cov pins ntawm cov khoom siv thiab tawm hauv qhov sib koom ua ke.
5. Lub sijhawm vuam yuav tsum tsis txhob ntev dhau, txwv tsis pub nws yooj yim rau scald cov khoom. Yog tias tsim nyog, cov tweezers tuaj yeem siv los tuav cov pins los pab kom cov cua sov.
6. Cov pob qij txha yuav tsum muaj qhov zoo tshaj plaws sinusoidal peaks, ib tug kaj thiab du nto, nrog Wuxi spikes thiab nruab nrab tin cov ntsiab lus.
7. Tom qab welding tiav lawm, cov residual soldering flux ntawm lub rooj tsav xwm Circuit Court yuav tsum tau ntxuav nrog cawv kom tsis txhob muaj cov pa roj carbonized los ntawm kev cuam tshuam rau kev ua haujlwm ntawm lub voj voog.
8. Integrated circuits yuav tsum tau soldered kawg, thiab cov hlau soldering yuav tsum tau reliable grounded, los yog cov residual cua sov yuav tsum tau siv rau soldering tom qab fais fab tuag. Xwb, siv lub qhov (socket) tshwj xeeb rau kev sib xyaw ua ke, muab lub qhov (socket) thiab tom qab ntawd ntsaws rau hauv qhov sib xyaw ua ke.
9. Cov hluav taws xob soldering hlau yuav tsum tau muab tso rau ntawm cov hlau tuav.
