Nkag siab txog kev siv hluav taws xob soldering hlau thiab vuam
Yuav ua li cas siv ib tug soldering hlau
1. Cov cuab yeej npaj: hluav taws xob soldering hlau, solder hlau, rosin (koj tuaj yeem yuav lawv hauv khw muag khoom kho vajtse);
2. Lub tshuab hluav taws xob uas nyuam qhuav yuav tam sim no tuaj yeem dai lub taub hau lub taub hau nrog rab riam (vim tias muaj txheej txheej oxide), thiab tom qab ntawd ntsaws lub hwj chim. Ceev faj tias qhov kub thiab txias heev thaum koj ntsaws rau hauv lub hwj chim;
3. Thaum qhov kub ntawm cov hlau soldering tuaj, muab rosin rau ntawm qhov kawg ntawm cov hlau soldering thiab solder;
4. Ua ntej muab rosin rau ntawm cov xov hlau uas yuav tsum tau welded, thiab ces solder ntawm cov dots;
5. Tom qab ntawd solder rau ntawm cov khoom uas yuav tsum tau soldered, xyuam xim rau qhov ceev, txwv tsis pub cov khoom yuav raug kub hnyiab yog tias qhov kub thiab txias dhau lawm;
6. Thaum cov hlau tsis siv, muab cov hlua khi rau ntawm qhov kawg ntawm cov hlau soldering (kom tiv thaiv cov hlau los ntawm kev ziab);
7. Siv rosin raws li flux kom ntau li ntau tau, thiab cov tshuaj txhuam hniav yuav ua rau me ntsis corrosive;
Txoj kev ntawm dai tin yog yooj yim heev. Ua ntej fais fab tuag, ntxuav lub ntsej muag kawg ntawm lub taub hau nrog cov ntawv xuab zeb los yog riam. Ib txheej ntawm tin. Lub taub hau ntawm cov hlau nplaum tom qab tinning tuaj yeem siv tau rau kev siv txhua lub sijhawm.
Lus Cim: Txhua lub tshuab hluav taws xob hluav taws xob yuav tsum muaj peb lub terminals, ob qho uas txuas nrog cov tub ntxhais hlau txuas rau 220V AC fais fab mov, thiab lwm qhov yog txuas nrog lub plhaub hlau nplaum ua lub chaw tiv thaiv hauv av rau kev sib txuas rau hauv av hlau . Rau kev nyab xeeb yog vim li cas, Ua ntej siv, nws yog qhov zoo tshaj plaws los siv ib lub multimeter los txheeb xyuas seb cov tub ntxhais hlau puas tawg lossis sib xyaw. Feem ntau, qhov tsis kam ntawm cov hlau nplaum ntawm ib qho 20-30W hluav taws xob soldering hlau yog: 1500-2500 ohms.
Kev ceev faj rau kev siv hluav taws xob soldering hlau
Cov pins ntawm ntau yam khoom yuav tsum tsis txhob raug txiav luv luv, txwv tsis pub nws tsis tsim nyog rau cov cua sov dissipation thiab soldering.
1. Thaum soldering, muab cov hlau lead ntawm cov khoom uas muaj tin dai rau ntawm txoj hauj lwm yuav tsum tau soldered, xws li lub ncoo qhov ntawm lub board luam ntawv los yog lub qhov me me ntawm solder daim ntawm ntau yam pob qij txha, qhov (socket) thiab keyboards, thiab siv ib tug soldering hlau taub nrog ib tug tsim nyog tus nqi ntawm tin rau solder Qhov ib feem nyob twj ywm li ntawm 3 vib nas this, thiab tom qab lub soldering hlau raug tshem tawm, ib tug du solder sib koom ua ke yog tsim nyob rau ntawm qhov chaw soldering.
Txhawm rau kom ntseeg tau qhov zoo ntawm vuam, nws yog qhov zoo tshaj rau dai tin ua ntej ntawm txoj hauj lwm ntawm cov hlau lead ntawm cov khoom siv vuam. Thaum vuam, xyuas kom meej tias txoj hauj lwm ntawm cov hlau lead tsis hloov, txwv tsis pub nws yog qhov yooj yim heev los ua qhov cuav vuam. Lub taub hau hlau yuav tsum tsis txhob nyob ntev dhau, txwv tsis pub nws yuav hlawv cov khoom, thiab yog tias nws luv dhau, nws yuav ua rau cov vuam tsis zoo vim qhov vuam tsis txaus.
2 Ua ntej soldering, feem ntau ntawm cov hlau lead ntawm cov khoom yuav tsum raug txiav tawm thiab tinned. Yog hais tias qhov saum npoo ntawm cov khoom yog oxidized thiab tsis yooj yim rau tin, koj tuaj yeem siv cov ntawv xuab zeb zoo los yog rab riam los ntxuav cov hlau lead, thiab siv lub taub hau ntawm cov hlau kom poob rau qhov tsim nyog ntawm rosin core solder rau tin cov hlau.
Yog tias koj tseem tsis tuaj yeem dai tin, koj tuaj yeem muab cov hlau lead ntawm cov rosin thaiv, tom qab ntawd kov cov hlau lead maj mam nrog lub taub hau ntawm cov hlau soldering, thiab tig cov hlau lead tib lub sijhawm, kom cov hlau lead tuaj yeem ua tau. yuav evenly tinned.
Lub sij hawm tinning ntawm txhua cov hlau lead yuav tsum tsis txhob ntev dhau, feem ntau 2 ~ 3 vib nas this yog qhov tsim nyog, yog li tsis txhob hlawv sab hauv ntawm cov khoom, tshwj xeeb tshaj yog thaum tinning tus pins ntawm diodes thiab triodes, nws yog qhov zoo tshaj plaws los siv cov hlau tweezers. clamp cov hlau lead tiv thaiv lub plhaub ib feem, thiaj li hloov tau ib feem ntawm lub tshav kub tam sim ntawd. ntxiv rau,
3. Tom qab vuam, ua tib zoo saib cov duab thiab cov tsos ntawm cov pob qij txha. Cov pob qij txha yuav tsum yog hemispherical thiab qhov siab me me dua li lub vojvoog. Lawv yuav tsum tsis txhob thab plaub los yog tiaj tus. Cov tsos mob yuav tsum du thiab sib xws yam tsis muaj qhov pom tseeb qhov pores lossis kev nyuaj siab, txwv tsis pub nws yuav yooj yim ua rau tsis muaj tseeb lossis tsis tseeb vuam. Thaum vuam cov hlau lead ntawm ob peb yam khoom nyob rau tib lub sijhawm, yuav tsum tau them nyiaj ntau rau qhov zoo ntawm cov pob qij txha.
Cov kauj ruam yooj yim ntawm kev ua haujlwm vuam
Kauj Ruam 1: Npaj rau vuam. Tuav lub vuam hlau nyob rau hauv koj sab tes laug thiab cov hlau soldering nyob rau hauv koj sab tes xis, thiab nkag mus rau lub vuam npaj lub xeev. Lub hau ntawm cov hlau soldering yuav tsum tau ua kom huv si, tsis muaj oxides xws li vuam slag, thiab coated nrog ib txheej ntawm solder rau ntawm qhov chaw.
Kauj Ruam 2: Cua sov lub vuam Lub taub ntawm cov hlau soldering nyob rau ntawm qhov sib txuas ntawm ob qhov vuam, thiab ua kom sov tag nrho cov vuam rau li 1 mus rau 2 vib nas this. Rau cov khoom siv ntawm cov ntawv luam tawm, kev saib xyuas yuav tsum tau ua kom lub taub hau ntawm cov hlau soldering kov ob qho tib si cov khoom yuav tsum tau soldered tib lub sijhawm. Cov hlau thiab cov terminals, cov khoom siv lead ua thiab cov ntaub qhwv yuav tsum tau muab cua sov sib npaug tib lub sijhawm.
Kauj Ruam 3: Thaum lub vuam nto ntawm cov khoom siv vuam siv nrog cov vuam hlau yog rhuab mus rau qhov kub thiab txias, cov hlau xaim hu rau qhov vuam los ntawm sab nraud ntawm cov hlau soldering. Lus Cim: Tsis txhob xa cov xov hlau mus rau qhov kawg ntawm cov hlau soldering!
Kauj Ruam 4: Tshem tawm cov vuam hlau. Thaum lub vuam hlau tau yaj rau ib qho nyiaj, tam sim ntawd tshem cov vuam hlau mus rau sab laug ntawm 45 degree.
Kauj Ruam 5: Tshem cov hlau soldering, tom qab lub solder infiltrates lub ncoo thiab vuam ib feem ntawm lub vuam, tshem tawm cov hlau soldering nyob rau sab xis ntawm 45 degree, thiab xaus qhov vuam. Los ntawm kauj ruam thib peb mus rau qhov kawg ntawm theem thib tsib, lub sij hawm yog li ntawm 1 mus rau 2s.
Kev ceev faj rau kev ua haujlwm vuam
1. Tsis txhob txav los yog vibrate lub vuam ua ntej lub solder yog solidified, txwv tsis pub nws yuav yooj yim ua rau xoob solder joint qauv lossis virtual vuam.
2. Tus nqi ntawm flux yuav tsum yog nruab nrab. Kev siv ntau dhau ntawm rosin flux yuav ua rau muaj kev cuam tshuam ntau dhau tom qab vuam, thiab ua kom lub sijhawm cua sov thiab txo kev ua haujlwm. Thaum lub sij hawm cua sov tsis txaus, nws yog ib qho yooj yim los tsim qhov tsis xws luag ntawm "slag inclusion".
3. Kev khiav tawm ntawm cov hlau soldering yuav tsum tau xyuam xim rau kev khiav tawm ntawm cov hlau soldering nyob rau hauv lub sij hawm, thiab lub kaum sab xis thiab cov kev taw qhia ntawm kev khiav hauj lwm muaj feem xyuam rau kev tsim ntawm solder pob qij txha.
4. Thaum ua kom cov cheeb tsam sib cuag kom ceev cov cua sov hloov thiab cua sov, qhov chaw ntawm lub vuam uas yuav tsum tau infiltrated los ntawm solder yuav tsum tau rhuab sib npaug, es tsis txhob tsuas yog cua sov ib feem ntawm lub vuam, cia nyob ib leeg siv cov hlau soldering kom nce. lub siab ntawm welment.
5. Khaws lub hau ntawm cov hlau soldering kom huv si thiab khaws cia. Thaum soldering, lub ntsis ntawm cov hlau soldering yog nyob rau hauv ib tug high-kub lub xeev rau lub sij hawm ntev, thiab nws yog ib qho yooj yim mus oxidize thiab tau ib tug txheej ntawm dub impurities. Yog li ntawd, ua tib zoo so lub taub hau ntawm cov hlau nplaum nrog ib daim txhuam cev ntub dej txhua lub sijhawm, thiab ntxiv cov tin rau lub taub hau ntawm cov hlau soldering thaum nws tsis tau siv ntev los tiv thaiv lub hau ntawm cov hlau soldering los ntawm oxidizing. thiab ua rau nws tsis yooj yim rau lo tin.
6. Tus nqi ntawm cov solder yuav tsum yog nruab nrab. Lub tin hlau twb tau ntim nrog flux ua los ntawm rosin thiab activator.
7. Tsis txhob siv lub taub hau hlau los ua cov cuab yeej thauj khoom siv (soldering nrog tin) Qee cov neeg siv los siv lub taub hau hlau los ua cov cuab yeej thauj khoom siv rau cov khoom siv soldering, uas ua rau oxidation ntawm cov hlau.
Vim hais tias qhov kub ntawm qhov kawg ntawm cov hlau soldering feem ntau yog siab tshaj 300 degree, cov flux nyob rau hauv lub solder hlau yog ib qho yooj yim rau decompose thiab poob ntawm qhov kub thiab txias, thiab lub solder kuj nyob rau hauv ib tug tsawg-zoo lub xeev ntawm overheating.
