Dab tsi yog vim li cas vim li cas hluav taws xob soldering hlau tsis kub tom qab tsis ua haujlwm rau lub sijhawm?
1. Tsis kub kiag li
Yog tias nws tsis kub, siv cov hluav taws xob tiv thaiv ntawm multimeter los ntsuas qhov tsis kam ntawm lub hwj huam qaum ntsaws, nws yuav tsum yog ∞. Disassemble lub hluav taws xob soldering hlau, tshem tawm los yog tev tawm lub tes tsho insulating ntawm kev sib txuas ntawm lub hwj chim qaum thiab cov tub ntxhais soldering hlau, ntsuas qhov tsis kam ntawm ob lub ntsiab lus, yog tias muaj qhov tsis kam, nws txhais tau tias cov tub ntxhais ntawm cov hluav taws xob soldering hlau. zoo, thiab nws yog qhov teeb meem ntawm txoj hlua hluav taws xob — —— Nws raug rub tawm lossis muaj kev sib cuag tsis zoo hauv lub ntsaws. Yog hais tias tus nqi kuj tseem yog ∞, nws txhais tau hais tias lub soldering hlau core puas lawm. Cov nram qab no yog ob qho tib si soldering hlau cores: sab nraud cua sov hom thiab sab hauv cua sov hom.
Yog vim li cas rau kev puas tsuaj ntawm chromium hlau core: ●Vim yog ntog thiab khob. Txij li thaum lub cua sov hlau ntawm chromium-hlau core yog qhov txhab ntawm lub quartz los yog nyob rau hauv lub ceramic raj, cov ntaub ntawv insulating yog inherently nkig, thiab ua ntau nkig ib zaug rhuab, thiab tsis tuaj yeem kov los yog ntog, txwv tsis pub, lawv yuav tawg thiab ua rau kev puas tsuaj. . ●Qhov zoo ntawm cov hlau soldering nws tus kheej yog qhov tsis zoo, thiab cov cua sov xaim tau tawg. Tam sim no nyob rau hauv kev ua lag luam, hluav taws xob soldering hlau muaj nqis 3 mus rau 5 yuan ib thooj tau pib zoo ib yam li cov nqi kaum ntawm yuan ib thooj. Lawv tuaj yeem raug faked, tab sis qhov zoo yog qhov tsis zoo thiab lawv tsis ruaj khov. Cov neeg feem ntau hais tias "koj tau txais yam koj them rau," thiab nws muaj tseeb.
2. Nws tuaj yeem kub, tab sis lub tshav kub tsis txaus rau yaj tin
Cov yam ntxwv ntawm qhov tshwm sim yog tias cov hlau soldering muaj cov plaub hau dub thiab tsis tuaj yeem yaj lub solder. Nws zoo nkaus li tias cov cua sov tsis txaus, tab sis qhov tseeb ntawm qhov kawg ntawm cov hlau soldering yog "kub kom tuag".
Yog hais tias qhov no tshwm sim, dipped lub soldering hlau uas tseem ua cua sov nrog rosin dua thiab rub nws nyob rau hauv lub tin block kom txog thaum lub ntsis ntawm lub soldering hlau yog tinned, uas yog, cov xim hloov ntawm dub mus rau kaj. Rau lub neej ntev hluav taws xob soldering hlau nrog lub ntsiab lus taw qhia, nws yog nruj me ntsis txwv tsis pub siv cov ntaub ntawv los ua ntaub ntawv, vim tias lub taub hau alloy yuav raug foob.
Lub taub thiab cov tub ntxhais ntawm cov hlau soldering yog cov khoom siv, thiab kev puas tsuaj yog qhov tshwm sim ib txwm muaj, tab sis kev paub txog kev siv cov hlau soldering yuav ua rau nws lub neej ntev.
5- kauj ruam txoj hauv kev kom raug soldering nrog hluav taws xob soldering hlau
Kauj Ruam 1: Npaj cov khoom siv vuam
Rau vuam, peb yuav tsum xub npaj cov ntaub ntawv vuam, xws li hluav taws xob soldering hlau, solder hlau, cov ntaub ntawv yuav tsum tau soldered, Cheebtsam thiab flux, thiab lwm yam. Dhau li ntawm thawj zaug, peb kuj yuav tsum tau tuav lub fais soldering hlau thiab solder hlau, feem ntau nrog sab tes xis Lub tshuab hluav taws xob siv hluav taws xob siv lub tshuab hluav taws xob nyob rau sab laug tes, txhim kho cov khoom sib txuas ntawm PCB, thiab muab tso rau ntawm lub rooj tos rau soldering. Nco ntsoov tias qhov kub ntawm cov hlau soldering yog siab heev tom qab cua sov rau ib lub sij hawm. Tsis txhob kov nws nrog koj txhais tes, txwv tsis pub nws yuav ua rau kub hnyiab.
Kauj Ruam 2: Ua kom sov cov ntsiab lus Soldering
Tom qab cua sov cov hluav taws xob soldering hlau, nws yog qhov zoo tshaj kom muab cov hluav taws xob soldering hlau nyob rau hauv lub flux ib pliag. Nws yuav zoo dua yog tias qee qhov flux tuaj yeem muab ntxiv rau qhov chaw soldering, uas yog qhov yooj yim rau peb rau solder. Qhov tsim nyog ntawm kev muab cov hlau nplaum rau hauv cov flux tsis siv sijhawm ntev, li ob vib nas this los yog li ntawd.
Kauj ruam 3: Ntxiv Solder Hlau
Tom qab soldering hlau yog rhuab mus rau ib tug tej yam kub, peb pib solder. Ua ntej, muab cov hlau nplaum rau ntawm tus pin ntawm cov khoom sib txuas, tom qab ntawd cia cov hlau nplaum ze rau ntawm cov hlau nplaum, muab cov hlau nplaum rau ntawm cov hlau nplaum ib ntus, thiab tom qab ntawd solder tom qab melting, cov kua nplaum tuaj yeem nyob ib puag ncig. cov pins. Thaum soldering integrated chips, yuav tsum ceev faj tsis txhob ntxiv ntau solder.
Kauj Ruam 4: Tshem cov Hlau Hlau
Tom qab lub solder melts thiab drips mus rau lub Cheebtsam yuav tsum tau soldered, ntau tshaj li ib nrab ntawm peb ua hauj lwm tiav. Cov kauj ruam tom ntej yog tos kom cov hlau nplaum kom ruaj khov, yog li peb tsis tas yuav muab cov hlau nplaum rau ntawm qhov chaw soldering. Peb yuav tsum tshem lub solder nyob rau hauv lub sij hawm Soldering, thiaj li hais tias cov tin kua solidifies.
Kauj Ruam 5: Tshem tawm Cov Hlau Hlau
Tom qab cov hlau nplaum raug tshem tawm, txhawm rau ua kom lub vuam zoo nkauj dua, peb tuaj yeem siv cov hlau nplaum hluav taws xob kom rov ua cov kua tin ntawm qhov qub vuam txoj hauj lwm, kom tsis txhob muaj qhov tshwm sim uas cov hlau nplaum tsis tuaj yeem yaj tag. thiab coj mus rau kev vuam virtual. Muab tso rau ntawm qhov chaw yuav tsum tau soldered, yog tias qhov kub ntawm cov hlau soldering siab dhau lawm yog tias nws nyob ntawm no ntev, nws yuav ua rau lub ncoo poob, uas yuav ua rau lub rooj tsavxwm PCB tawg.
