Muaj ntau txoj kev ntawm soldering leads ntawm Circuit Court boards.
Printed circuit boards muab faib ua 2 hom: ib sab thiab ob sab. Qhov los ntawm qhov ntawm nws feem ntau tsis yog-metallised, tab sis txhawm rau ua kom cov khoom sib txuas ntawm lub rooj tsavxwm muaj kev ruaj ntseg thiab txhim khu kev qha, niaj hnub no feem ntau ntawm cov qhov hauv cov ntawv luam tawm ntawm cov khoom siv hluav taws xob tau raug coj los ua metallised. Txoj kev ntawm soldering ua rau ib tug zoo tib yam vaj huam sib luag:
(1), ncaj nraim ntawm lub taub hau txiav. Ua ncaj qha los ntawm lub qhov, vuam kom tsim nyog tus nqi ntawm melted solder nyob rau hauv lub ncoo saum toj no lub tin tusyees nyob ib ncig ntawm cov hlau lead, tsim ib lub khob hliav qab pwm, kom txias thiab solidified, tshaj ib feem ntawm cov hlau txiav tawm. (Saib lub rooj tsavxwm rau cov txheej txheem tshwj xeeb)
(2), ncaj qha faus. Los ntawm lub qhov-qhov ua rau tsuas yog raug rau qhov tsim nyog ntev, lub melted solder mus rau lub taub hau txhuas faus rau hauv lub solder sib koom. Hom kev sib koom ua ke no kwv yees ib hemisphere, thiab txawm hais tias nws yog qhov zoo nkauj, yuav tsum tau saib xyuas tshwj xeeb kom tsis txhob muaj qhov cuav.
(3) Tiv thaiv tsis zoo soldering
Vuam tshuab yog cov neeg nyiam xov tooj cua yuav tsum paub cov thev naus laus zis yooj yim, xav tau kev xyaum ntxiv kom paub.
1, xaiv txoj cai solder, yuav tsum tau siv los vuam cov khoom siv hluav taws xob uas tsis tshua muaj melting point solder hlau.
2, flux, nrog 25% rosin yaj hauv 75% cawv (qhov hnyav piv) raws li flux.
3, soldering hlau yuav tsum tau siv ua ntej lub tin, txoj kev tshwj xeeb yog: lub soldering hlau yuav kub, yuav tsum tau tsuas yog yaj lub solder, coated nrog flux, thiab ces sib npaug zos coated nrog solder nyob rau hauv lub soldering hlau taub hau, yog li ntawd. lub taub hau hlau soldering uniformly noj ib txheej ntawm tin.
4, vuam txoj kev, lub ncoo thiab tivthaiv pins nrog zoo sandpaper sib tsoo huv si, coated nrog flux. Nrog rau cov ntsiab lus ntawm cov hlau soldering dipped nyob rau hauv qhov tsim nyog tus nqi ntawm solder, hu rau lub soldering point, yuav tsum tau soldered nyob rau hauv lub soldering point ntawm tag nrho cov melted thiab submerged Cheebtsam ua lub taub hau, soldering hlau taub hau nyob rau hauv lub tivthaiv pins maj mam tuaj tos, tawm lub soldering. taw tes.
5, lub sijhawm vuam yuav tsum tsis txhob ntev dhau, txwv tsis pub nws yooj yim rau hlawv cov khoom, yog tias tsim nyog, cov tweezers tuaj yeem siv los txiav tus pin los pab kom cov cua sov.
6, qhov sib koom ua ke yuav tsum yog sinusoidal yoj lub ncov zoo li, qhov saum npoo yuav tsum ci thiab sib npaug, tsis muaj tin spines, tus nqi ntawm cov tin yog nruab nrab.
7, tom qab ua tiav ntawm vuam, siv dej cawv los ntxuav lub rooj tsav xwm hauv Circuit Court ntawm cov seem flux, txhawm rau tiv thaiv carbonisation ntawm cov flux cuam tshuam rau kev ua haujlwm ntawm lub voj voog.
8, integrated circuits yuav tsum yog qhov kawg vuam, soldering hlau yuav tsum tau cia siab rau hauv av, los yog lub hwj chim tawm tom qab siv cov residual tshav kub welding. Los yog siv lub qhov (socket) tshwj xeeb rau kev sib xyaw ua ke, txuas lub qhov (socket) thiab tom qab ntawd ntxig rau qhov sib xyaw ua ke.
9, soldering hlau yuav tsum tau muab tso rau ntawm soldering hlau sawv ntsug.
