Qhov tseeb siv hluav taws xob soldering hlau hauv kev saib xyuas Circuit Court
1. Txoj kev tuav ntawm hluav taws xob soldering hlau
① Brushstroke txheej txheem
Tus cwj mem tuav txoj kev yog tsim rau cov uas tsis muaj zog thiab ncaj soldering hlau taub hau, thiab yog tsim rau welding soldered qhov chaw uas tsis tshua muaj cua sov dissipation, xws li luam Circuit Court boards nyob rau hauv vuam seev. Cov txheej txheem tuav yog txoj kev siv ntau tshaj plaws rau cov neeg ua haujlwm ntsuas.
② Txoj kev tuav zoo
Txoj kev tuav zoo yog tsim rau hluav taws xob soldering hlau nrog cov lus qhia loj thiab nkhaus soldering hlau. Yuav siv tau rau soldering thaum lub Circuit Court board yog perpendicular rau lub desktop.
③ Rov qab tuav txoj kev
Txoj kev tuav rov qab yog tuav tus kov ntawm lub tshuab hluav taws xob hauv lub xib teg nrog tsib ntiv tes. Txoj kev no yog tsim rau cov hluav taws xob hluav taws xob siab, cov hlau nplaum, thiab cov khoom siv welded nrog cov cua kub loj.
2. Xaiv hluav taws xob soldering hlau raws li nws lub hom phiaj
Thaum cov khoom siv sib xyaw ua ke ntawm cov ntawv luam tawm, xws li diodes, transistors, resistive thiab capacitive Cheebtsam, thiab integrated circuits, nws yog advisable siv ib tug 20-30W internally rhuab soldering hlau. Cov neeg tuaj tshiab tau qhia kom siv 20W vim qhov vuam qeeb qeeb. Thaum vuam cov cuab yeej nrog cov pins tuab lossis cov ntsiab lus loj hauv av ntawm cov ntawv luam tawm lossis cov khoom siv hluav taws xob, nws raug nquahu kom siv 45-75W soldering hlau los xyuas kom meej qhov ruaj khov ntawm cov khoom siv thiab cov ntawv luam tawm lossis cov xov hlau. Nws tsis tuaj yeem siv lub zog hluav taws xob tsawg los txuas cov pob qij txha ntawm cov khoom siv hluav taws xob loj. Vim lub tshav kub dissipation ceev, qhov kub ntawm lub taub hau soldering poob sai sai, uas yuav tsim solder deposits. Nws zoo nkaus li yuav soldered, tab sis qhov tseeb, nws yog ib tug virtual soldering. Vuam cov khoom siv hluav taws xob dav dav rau cov ntawv luam tawm hauv Circuit Court boards nrog lub zog hluav taws xob muaj zog feem ntau hlawv cov kab ntawv tooj liab lossis cov khoom siv hluav taws xob.
3. Mastering cov kauj ruam vuam kom raug
Qib ntawm vuam txiav txim siab qhov ruaj khov thiab kev ntseeg siab ntawm cov cuab yeej kho. Cov teeb meem zoo nrog cov pob qij txha me me tuaj yeem ua rau tag nrho cov cuab yeej lossis kev tswj xyuas ua haujlwm tsis zoo, thiab cov ntsiab lus txhaum feem ntau yog zais. Yog li mastering qhov tseeb vuam cov kauj ruam yog tus yuam sij kom ntseeg tau tias vuam zoo. Tam sim no cia peb qhia nws.
① Muab cov hlau nplaum rau ntawm tus pins ntawm cov khoom siv los ua kom sov thiab ua kom sov cov khoom sib txuas ua ntej. Tom qab lub solder sib koom mus txog qhov tsim nyog qhov kub thiab txias, tam sim ntawd yaj lub rosin solder hlau ntawm lub solder sib koom.
② Tom qab cov tin tau yaj lawm, lub taub hau hlau yuav tsum tau txav me ntsis raws li cov duab ntawm cov khoom sib koom ua ke, kom cov khoom sib npaug sib npaug ntawm cov sib koom ua ke thiab nkag mus rau hauv qhov khoob ntawm qhov chaw soldered. Tom qab melting ib tug tsim nyog tus nqi ntawm solder, lub solder hlau yuav tsum tau sai sai tshem tawm.
③ Thaum lub solder ntawm lub solder sib koom yuav luag tag nrho, cov flux tsis tau evaporated kiag li, qhov kub thiab txias yog tsim nyog, thiab lub solder yog brightest thiab muaj lub zog fluidity, sai sai txav lub soldering hlau taub hau raws li cov kev taw qhia ntawm cov tivthaiv pins. Thaum nws tab tom yuav tawm mus, nqa rov qab sai sai thiab tawm hauv cov khoom sib koom ua ke kom ntseeg tau tias qhov chaw ntawm cov khoom sib txuas yog ci, du, thiab tsis muaj burrs. Thaum kawg, siv cov kab pheeb ces kaum los txiav cov pins ntev ntev, thiab nthuav tawm cov pob qij txha me ntsis.
Lub sijhawm rau cov txheej txheem ua haujlwm hauv cov kauj ruam ① - ② saum toj no yuav tsum tswj tsis pub dhau 2-3 vib nas this. Cov neeg pib tshiab feem ntau muaj lub sijhawm vuam ntev dua, thiab lub sijhawm cua sov ntev dua tuaj yeem ua rau cov ntawv ci tooj liab puas rau ntawm lub rooj tsavxwm luam tawm thiab kho tsis tau. Cov kauj ruam thib peb plays lub luag hauj lwm txiav txim siab nyob rau hauv qhov zoo ntawm cov solder sib koom, thiab nws yog ib qho tseem ceeb rau kev xyaum thiab to taub nws qhov tseem ceeb.
4. Kev tiv thaiv txoj hauv kev rau soldering hlau taub hau
Ua ntej yuav siv cov khoom siv hluav taws xob tshiab, lub taub hau hlau yuav tsum tau coated nrog tin. Rau tooj liab soldering hlau taub hau, ntawv xuab zeb los yog cov ntaub ntawv tuaj yeem siv los txhuam cov hlau taub hau kom huv. Tom qab txuas mus rau lub hwj chim rau ob peb feeb, cov xim ntawm lub taub hau soldering yuav hloov, qhia tias cov hlau soldering tau kub. Thaum qhov kub ntawm lub taub hau ntawm lub taub hau mus txog qhov melting point ntawm lub solder, nws tuaj yeem siv los poob rau hauv rosin soldering hlau. Qhov saum npoo ntawm lub taub hau hlau yuav tau dipped nyob rau hauv ib txheej ntawm ci tin, thiab lub taub hau hlau tuaj yeem siv tau. Yog tsis muaj lub taub hau ntawm cov hlau dipped hauv tin, nws tsis tuaj yeem soldered thaum vuam.
Lub taub hau hlau soldering yuav tsum tau ua kom huv si. Lub taub hau tsis huv yuav oxidize sai thiab tsis tuaj yeem tinned, uas yuav ua rau corrosion pits ntawm lub taub hau soldering lub sij hawm, ua rau vuam ua hauj lwm nyuaj. Yog hais tias cov hluav taws xob soldering hlau nyob rau hauv lub xeev tos rau vuam rau lub sij hawm ntev thiab qhov kub thiab txias, nws tseem tuaj yeem ua rau lub taub hau soldering hlau hlawv. Thaum tsis vuam, tam sim ntawd tua lub hwj chim ntawm cov hlau soldering. Cov oxides thiab carbides tau los ntawm cov khoom seem ntawm lub taub hau hlau tuaj yeem ua rau lub taub hau hlau ua kom puas thiab txo nws cov thermal conductivity. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tsis tu ncua ntxuav lub taub hau ntawm lub taub hau nrog qhov kub thiab txias tiv thaiv daim txhuam cev kom tiv thaiv kev puas tsuaj rau lub taub hau hlau. Tom qab txhua qhov kev siv, lub taub hau hlau yuav tsum tau muab ntxuav kom huv thiab dipped rau hauv ib txheej ntawm tin los tiv thaiv nws.
