Yuav Ua Li Cas Cuam Tshuam - Phau Ntawv Qhia Yooj Yim Yooj Yim: 5 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Kev siv tshuaj yaj yeeb yog txheej txheem ntawm kev koom nrog ob lub hlau ua ke nrog cov hlau txuas los ntawm kev siv cov laug los tsim cov khoom siv hluav taws xob uas ntseeg tau.

Qhov no yog cov txheej txheem qhia yooj yim rau cov pib tshiab txog kev siv tes txhuam nrog cov hlau yaj. Kuv vam tias nws yuav pab tau zoo rau feem ntau ntawm koj li DIY cov haujlwm los ntawm cov khoom siv hluav taws xob. Yog tias koj muaj kev paub dhau los ntawm kev siv tshuaj yaj yeeb, koj cov lus pom zoo hauv "lus" cheeb tsam. Hauv cov lus qhia no kuv yuav npog cov ncauj lus hauv qab no:

- kev tiv thaiv kev nyab xeeb ua ntej peb pib siv lub tshuab ua haujlwm

-choosing tsim nyog soldering hlau thiab solder

- npaj rau soldering

-kev muag khoom

-tshuaj xyuas ntawm cov pob qij txha txuas

Kauj ruam 1:

Feem ntau ntawm cov xaim hluav taws xob lossis cov kab laug sab uas muaj cov hlau lead (cov phom sib xyaw yog sib xyaw ntawm cov tin thiab cov hlau lead). Thaum siv cov khoom siv lead ua cov hlau lead tuaj yeem tsim cov pa uas txaus ntshai rau koj kev noj qab haus huv. Ib qho ntxiv, cov xaim hluav taws xob feem ntau muaj cov dej ntws hauv nruab nrab ntawm cov xaim. Muaj ntau hom sib txawv ntawm cored solder nrog sib txawv solder rau tus nqi ntws. Flux muaj cov tshuaj rosin (colophony) tsim cov pa luam yeeb uas, yog nqus tau, tuaj yeem ua rau muaj kev phom sij. • Kev siv tshuaj yuav tsum tau ua tsuas yog nyob hauv qhov chaw muaj cua nkag tau zoo. • Siv cov pa nqus pa • Cov hlau txhuam yog kub heev (rau feem ntau ntawm cov khoom siv ua haujlwm kub ntawm cov hlau yog 350 -400 degrees Celsius). Tsis txhob kov qhov taub ntawm cov hlau txhuam nrog koj txhais tes. • Tsis txhob tso koj cov hlau kub tso rau lwm yam uas tsis yog hlau sawv ntsug. • Khaws cov kua thiab cov khoom tawg (xws li cawv, hnyav thiab lwm yam) kom deb ntawm thaj chaw ua haujlwm. • Hnav tiv thaiv qhov muag. • Tsis txhob txiav ib qho av txuas rau ntawm lub ntsaws hlau kom nws haum rau hauv qhov chaw tsis muaj av. • Tuav cov xov hlau kom sov nrog tweezers, pliers lossis clamps kom tsis txhob raug hlawv ntawm koj cov ntiv tes los ntawm cov khoom uas ua kom sov. • Hnav ESD (Electro-Static Discharge) tiv thaiv yog tias koj yuav siv cov khoom siv hluav taws xob zoo li qub xws li cov khoom siv CMOS. Rau feem ntau ntawm DIY cov phiaj xwm nws yuav zoo txaus los hnav ESD dab teg (qhia ntawm daim duab hauv qab no). • Ntxuav koj ob txhais tes nrog xab npum thiab dej tom qab siv tas.

Kauj ruam 2:

Qhov xav tau tseem ceeb hauv cov txheej txheem ntawm cov laug yog cua sov. Soldering hlau yog cov cuab yeej tsim hluav taws xob. Muaj kev xaiv dav ntawm cov chaw sib dhos, cov hlau txuas thiab cov phom phom. Lawv tuaj hauv ntau yam duab, qhov ntau thiab qhov wattages. Cov hlau twg yog cov hlau txuas zoo tshaj plaws rau koj nyob ntawm seb hom phiaj ntawm cov phiaj xwm uas koj npaj yuav ua. Nyem rau qhov no yog tias koj xav nyeem kev tshuaj xyuas txog qee qhov nrov tshaj plaws cov khoom siv tooj liab. Rau txhua qhov phiaj xwm txheej txheem koj xav tau cua sov txaus kom yaj tau sai thiab siv nws rau qhov sib koom ua ke, tab sis tib lub sijhawm koj tsis xav tau cua sov ntau dhau uas tuaj yeem hlawv lossis yaj cov khoom siv hluav taws xob me me ntawm cov laug cam. Yog tias koj tsis xyuam xim rau qhov kub ntawm cov hlau koj tuaj yeem ua rau puas tsuaj rau koj txoj haujlwm soldering los ntawm kev siv cua sov ntau dhau. Cov cua sov ntau dhau los ntawm cov hlau txuas tuaj yeem ua rau puas lossis txawm tias nqa thiab tawg tooj liab cov hlau thiab cov pawm ntawm lub rooj tsav xwm ib yam. Kev ntsuas kub hauv tshuab txhais tau tias koj yuav ib txwm paub yog tias qhov ntxeev ntawm cov hlau txhuam kub txaus rau cov khoom koj tab tom siv. Nws ua rau koj cov txheej txheem soldering tag nrho yooj yim dua. Qhov kub ntawm cov hlau tuaj yeem hloov kho nrog lub hauv ntej vaj huam sib luag tswj qhov kub thiab txias - koj tuaj yeem tuaj yeem tswj qhov kub ntawm cov hlau txuas tsis pub dhau 9 degrees Fahrenheit. Qhov no txhais tau tias koj tuaj yeem tso siab tau tias koj cov hlau txuas yog kub txaus thiab npaj rau kev siv tshuaj yaj yeeb, thiab tib lub sijhawm koj paub tias nws tsis kub dhau los hlawv cov khoom ntawm lub rooj tsav xwm. Qhov no yog qhov laj thawj tseem ceeb vim li cas kuv ib txwm pom zoo kom ntsuas qhov ntsuas kub kom sov. Hauv cov lus qhia no kuv siv 50 Watts Weller WESD51 ntsuas kub tswj cov hlau. Rau kev ua haujlwm soldering peb kuj xav tau ib lub tshuab ziab khaub ncaws. Ib qho ntawm cov khoom siv feem ntau siv yog cov laug uas yog 60% tin (Sn) thiab 40% txhuas (Pb). Lwm qhov feem ntau siv cov hlau nplaum yog cov laug uas yog 63% tin (Sn) thiab 37% txhuas (Pb) - qhov no ua haujlwm tshwj xeeb zoo rau cov khoom siv hluav taws xob me. Tsis ntev los no, muaj kev nce ntxiv ntawm kev siv cov kuab txhuas tsis muaj hmoov txhuas vim cov pa txhuas tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv. Cov laug feem ntau yog nyob rau hauv daim ntawv ntawm cov kab laug sab (nrog ntws hauv nruab nrab ntawm cov hlau). Cov xaim hluav taws xob muaj nyob hauv ntau qhov sib txawv tab sis hauv kev sib txuas ntawm cov hluav taws xob hluav taws xob peb feem ntau siv cov hlau txuas uas tuab yog 010 "020" thiab 030 ". Hauv qhov haujlwm no kuv tab tom siv cov hlau txuas 030" uas yog 60% tin (Sn) thiab 40 % txhuas (Pb).

Kauj ruam 3:

Qhib lub hwj chim hloov ntawm qhov chaw nres tsheb. Teem qhov xav tau ntawm qhov chaw nres tsheb soldering los ntawm kev tig pob qhov rooj ntawm lub vaj huam sib luag. Feem ntau ntawm cov chaw muag khoom zoo siv sijhawm 1-2 feeb kom ncav cuag qhov xav tau kub. Siv cov dej ntws los txhawm rau txhuam daim txhuam cev hauv qhov muag (daim txhuam cev yuav tsum ntub, tsis txhob ntub). Cov hlau hlau yuav tsum tau ntxuav ua ntej txhua qhov siv los so nws ntawm daim txhuam cev ntub dej (thaum cov lus qhia kub txaus). Cov lus qhia tshiab yuav tsum tau lo, ua kom sov, thiab tom qab ntawd npog nrog cov laug ua ntej nws siv thawj zaug (cov txheej txheem no hu ua "tinning" ntawm qhov taub). Lub hom phiaj ntawm tinning yog txhawm rau tsim ib txheej nyias nyias nyob ib ncig ntawm qhov ntxeev uas muab kev hloov pauv cua sov zoo dua los ntawm qhov taub mus rau qhov sib koom ua ke. Tsuas yog ntxuav cov hlau ntxig hloov cua sov kom zoo. Ntxuav kom zoo thaj tsam ntawm cov laug thiab tag nrho cov khoom ib yam nkaus. Txhua lub Cheebtsam yuav tsum huv thiab tsis muaj oxidation lossis lwm yam kev sib kis. Koj tsis tuaj yeem ua cov khoom sib txuas zoo rau ntawm qhov chaw ua haujlwm qias neeg - cov kab laug sab yooj yim yuav tsis lo rau cov khoom qias neeg lossis cov paug qias neeg ntawm cov ntawv luam tawm Circuit Board. Cov tooj liab ntawm daim phiaj hluav taws xob yuav tsum tau so nrog cov kuab tshuaj xws li isopropyl cawv kom tshem tawm cov roj thiab yog tias xav tau nrog lo txhuam. Tom qab ntawd, qee qhov dej ntws yuav tsum tau siv. Flux yog sib xyaw ntawm ntuj thiab hluavtaws rosins. Flux tshem tawm cov yeeb yaj kiab oxide thiab tshem tawm nws thaum txheej txheem txheej txheem. Cov yeeb yaj kiab oxide no tsim sai heev ntawm cov hlau ua kom sov.

Kauj ruam 4:

Ntxig cov khoom tiv thaiv hauv Circuit board los ntawm kev siv ob tus tweezers. Yog tias cov hlau yaj kub txaus, coj nws los ntawm sawv ntsug thiab tuav nws li tus cwj mem. Muab ib lub taub ntawm cov hlau txuas rau qhov sib txuas ua ke thiab tuav li ob peb feeb. Nco ntsoov tias cov hlau hlau kov tib lub sijhawm ob qho tib si tooj liab rau ntawm lub rooj tsav xwm hauv Circuit Court thiab cov khoom siv tivthaiv. Cua sov tsuas yog ib feem tab sis tsis yog lwm qhov yuav ua rau cov pob qij txha tsim tsis zoo. Kev sib txuas cua sov yog thaj chaw ntawm kev sib cuag ntawm cov hlau ntxig thiab saum npoo ntawm cov khoom siv sib txuas. Kev sib cuag ntawm cov hlau taub thiab nto feem ntau yog kab ncaj me me raws cov lus qhia hlau. Kev sib txuas ntawm cov cua sov tuaj yeem nce ntxiv los ntawm kev ntxiv me me ntawm cov kab laug sab rau kab ntawm kev sib cuag ntawm cov hlau thiab saum npoo. Molten solder tsim cov cua sov txuas nruab nrab ntawm qhov taub thiab cov laug sib koom ua ke. Tus choj txuas no muab qhov hloov pauv tau zoo dua thiab nrawm dua ntawm cov cua sov mus rau hauv cov khoom siv sib txuas. Ua kom sov ntxiv thiab tom qab ntawv thov qee qhov txuas rau qhov sib koom ua ke, tsis yog rau qhov kawg ntawm cov hlau txuas. Cov laug yuav tsum yaj thiab ntws zoo mus rau tooj liab saum npoo ntawm cov ntaub qhwv qhov sib txawv nruab nrab ntawm cov hlau lead thiab cov tooj liab. Ob qhov teeb meem tshwm sim feem ntau nrog kev siv tshuaj txhuam yog ntxiv ntau dhau lossis tsis txaus cov laug. Txhua qhov haujlwm ua haujlwm yuav tsum ua kom tiav hauv tsawg dua 2 vib nas this. Lub sijhawm siv lub tshuab ua haujlwm nyob ntawm qhov kub ntawm koj cov hlau thiab qhov loj ntawm qhov sib koom ua ke. Yog tias peb ua daim ntawv thov cua sov ntev dua 2 vib nas this, qhov no tuaj yeem tsoo cov ntaub los yog cov neeg ua haujlwm ntawm lub rooj tsav xwm hauv Circuit lossis ua rau cov khoom kub-cuam tshuam. Tshem cov hlau txuas thaum khaws cov ntawv sib koom ua ke - tsis txhob txav lub rooj tsav xwm hauv Circuit Court li ob peb feeb kom tso qhov sib koom ua ke kom txias thiab cov laug kom khov. Ntxuav cov dej seem nrog cawv cawv ethanol lossis lwm yam kuab tshuaj.

Kauj ruam 5:

Tam sim ntawd tom qab soldering, pib pom kev tshuaj xyuas ntawm cov khoom siv sib txuas. Lub teeb pom kev zoo (lossis lub tsom iav) xav tau rau kev tshuaj xyuas kom raug thiab ua tib zoo. Siv lub ohm-meter los ntsuas qhov sib koom ua ke kom txuas ntxiv mus. Cov khoom nyob ib sab tuaj yeem txuas ua ke lossis sib koom ua ke yuav xav tau cov laug txuas ntxiv rau cov hluav taws xob txuas mus zoo - cov laug ntau dhau yuav ua rau txuas hniav thiab cov laug tsawg dhau tuaj yeem ua rau cov leeg tsis muaj zog. Cov khoom siv sib txuas zoo yuav tsum du, zoo li lub roob hluav taws, ci thiab ci. Cov pob qij txha tsis zoo yog cov pob qij txha txias, cov kab laug sab laug, cov khoom sib dhos.

Nyem rau qhov no Yog tias koj xav yuav cov hlau txuas. Yog tias koj xav pib kawm paub yuav ua li cas thiaj li yaj tau nyem ntawm no.