Electronic Engineering Fundamentals: Introduction to Soldering Iron Soldering Techniques
1. Cov cuab yeej vuam
1. Soldering hlau
Ib tug soldering hlau yog feem ntau siv cov cuab yeej soldering. Peb siv 20W sab hauv cua sov hom soldering hlau.
Ua ntej siv ib tug tshiab soldering hlau, polish lub taub hau ntawm lub soldering hlau nrog nplua xuab zeb, ua kom sov nws nrog hluav taws xob, dipped nyob rau hauv rosin, thiab kov lub solder hlau nrog cov hniav ntawm lub taub hau ntawm lub soldering hlau, thiaj li hais tias lub taub hau ntawm rosin. lub soldering hlau yog tusyees coated nrog ib txheej ntawm tin. Ua li no tuaj yeem pab txhawb kev sib koom tes thiab tiv thaiv oxidation ntawm cov hlau taub hau. Yog hais tias lub qub soldering hlau taub yog hnyav oxidized thiab blackened, qhov saum npoo oxide tuaj yeem raug tshem tawm nrog cov ntawv hlau kom nthuav tawm cov xim hlau, thiab tom qab ntawd rov tinned ua ntej siv.
Lub tshuab hluav taws xob hluav taws xob yuav tsum siv 220V AC fais fab mov, thiab tshwj xeeb yuav tsum tau them nyiaj rau kev nyab xeeb thaum siv nws. Cov ntsiab lus hauv qab no yuav tsum ua tib zoo ua:
Nws yog qhov zoo tshaj plaws los siv peb-ncej ntsaws rau lub vuam hlau ntsaws. Xyuas kom lub rooj plaub yog qhov zoo.
Ua ntej siv, ua tib zoo xyuas seb lub hwj chim ntsaws thiab lub hwj chim qaum puas puas lawm. Thiab xyuas seb lub hau ntawm cov hlau soldering yog xoob.
Tsis txhob ntaus nyuaj thaum siv cov hlau soldering. Tiv thaiv kom tsis txhob ntog. Thaum muaj solder ntau dhau ntawm qhov kawg ntawm cov hlau soldering, so nws nrog ib daim ntaub. Tsis txhob muab pov tseg, kom tsis txhob hlawv lwm tus.
Thaum lub sij hawm soldering txheej txheem, cov hlau soldering tsis tuaj yeem tawm mus nyob qhov twg. Thaum tsis yog soldering, nws yuav tsum tau muab tso rau ntawm lub soldering hlau sawv ntsug. Nco ntsoov tias cov hlua hluav taws xob tsis tuaj yeem muab tso rau ntawm qhov kawg ntawm cov hlau soldering los tiv thaiv kev sib tsoo los ntawm scalding txheej rwb thaiv tsev.
Tom qab siv, lub hwj chim yuav tsum raug txiav tawm raws sij hawm thiab lub hwj chim ntsaws yuav tsum tau rub tawm. Tom qab txias, muab cov hlau nplaum rov qab rau hauv lub cuab yeej.
2. Solder thiab flux
Thaum soldering, solder thiab flux kuj yuav tsum tau.
(1) Solder: Rau vuam cov khoom siv hluav taws xob, feem ntau siv cov hlau nplaum nrog cov rosin core. Cov hlau nplaum no muaj qhov taw tes qis thiab muaj rosin flux, uas yog qhov yooj yim heev rau siv.
(2) Flux: Feem ntau siv flux yog rosin lossis rosin dej (solve rosin hauv cawv). Kev siv cov flux tuaj yeem pab tshem tawm cov oxides ntawm cov hlau saum npoo, uas yog qhov zoo rau kev siv vuam thiab tiv thaiv qhov kawg ntawm cov hlau soldering. Solder paste kuj tseem siv tau thaum soldering cov khoom loj lossis cov xov hlau. Tab sis nws yog corrosive rau ib qho twg, thiab cov seem yuav tsum tau muab tshem tawm hauv lub sijhawm tom qab vuam.
3. Cov cuab yeej pabcuam
Txhawm rau kom yooj yim rau kev ua haujlwm vuam, rab koob-qhov ntswg pliers, ib nrab-qhov ntswg pliers, tweezers thiab riam feem ntau yog siv los ua cov cuab yeej pabcuam. Kawm siv cov cuab yeej no kom raug.
Koob-qhov ntswg pliers / ib feem pliers / tweezers / riam
2. Kev kho mob ua ntej vuam
Ua ntej soldering, kev kho mob ua ntej yuav tsum tau ua ntawm cov khoom siv pins lossis cov khoom siv ntawm lub rooj tsavxwm.
1. Tshem tawm cov oxide txheej ntawm qhov vuam
Ib rab riam tuaj yeem ua los ntawm cov hniav tawg. Tshem tawm cov oxide txheej ntawm cov hlau ua kom nthuav tawm cov hlau nplaum ntawm cov hlau lead.
Lub rooj tsav xwm luam tawm tuaj yeem polished nrog cov ntaub nplaum zoo, thiab tom qab ntawd coated nrog ib txheej ntawm rosin cawv tov.
2. Cov khoom siv tinning
Tin on scraped leads. Tom qab dipping cov hlau lead hauv cov tshuaj rosin cawv, nias lub hau ntawm cov hlau kub kub nrog cov tin ntawm cov hlau lead thiab tig cov hlau lead. Cov txhuas tuaj yeem sib npaug plated nrog ib txheej nyias ntawm tin. Ua ntej cov hlau yog welded, lub rwb thaiv tsev sheath yuav tsum tau tev tawm, thiab tom qab ntawd cov saum toj no ob txoj kev kho yuav tsum tau ua ua ntej formal welding. Nyob rau hauv cov ntaub ntawv ntawm multi-strand nyob ntawm tej, lawv yuav tsum tau twisted ua ke tom qab polishing, thiab ces tinned.
3. Vuam tshuab
Tom qab kev kho ua ntej vuam ua tiav, vuam tuaj yeem ua tiav.
(1) Tuav hluav taws xob soldering hlau ntawm sab tes xis. Siv rab koob-qhov ntswg pliers lossis tweezers nrog koj sab tes laug los tuav cov khoom lossis cov xov hlau. Ua ntej soldering, hluav taws xob soldering hlau yuav tsum tau preheated tag nrho. Tin yuav tsum tau noj rau ntawm cov hniav saum npoo ntawm lub taub hau ntawm lub taub hau, uas yog, ib qho nyiaj ntawm cov solder yuav tsum tau coj tuaj.
(2) Muab cov hniav ntawm cov hlau taub hau rau ntawm qhov sib koom ua ke. Lub tshuab hluav taws xob hluav taws xob yog nyob ntawm kaum ntawm 60 degree rau lub dav hlau kab rov tav. Txhawm rau kom yooj yim rau kev khiav ntawm molten tin los ntawm qhov kawg ntawm cov hlau soldering mus rau qhov sib koom ua ke. Lub sij hawm lub taub hau hlau nyob ntawm qhov sib koom ua ke yog tswj tsis pub dhau 2 mus rau 3 vib nas this.
(3) Nqa lub taub hau ntawm cov hlau soldering. Sab laug tes tseem tuav cov khoom. Sab laug tes tsuas yog tso tawm tom qab lub tin ntawm lub solder sib koom yog txias thiab solidified.
(4) Tig cov hlau lead nrog tweezers kom paub meej tias nws tsis xoob, thiab tom qab ntawd siv cov pliers txiav tawm cov hlau lead ntau dhau.
2. Vuam zoo
Thaum welding, nws yog ib qho tsim nyog los xyuas kom meej tias txhua qhov sib koom ua ke yog ruaj khov thiab sib cuag zoo. Los xyuas kom meej qhov zoo ntawm vuam.
(A) Lub ntsiab lus tin yuav tsum ci, du tsis muaj burrs, thiab tus nqi ntawm cov tin yuav tsum nyob nruab nrab. Tin thiab solder yog nrees fused. Yuav tsum tsis muaj kev vuam cuav thiab vuam cuav.
False soldering txhais tau hais tias tsuas yog ib qho me me ntawm cov tin yog welded ntawm qhov sib koom ua ke, ua rau muaj kev sib cuag tsis zoo thiab cuam tshuam rau thiab tawm. False welding txhais tau hais tias nws zoo li welded rau saum npoo, tab sis nws tsis yog welded. Qee zaum cov hlau lead tuaj yeem rub tawm los ntawm kev sib koom ua ke los ntawm kev rub tawm ntawm tes. Ob qhov xwm txheej no yuav ua rau muaj teeb meem loj rau kev debugging thiab kev saib xyuas ntawm cov khoom siv hluav taws xob. Ob leeg ntawm cov xwm txheej no tsuas yog zam tau nrog kev siv dav dav, ua tib zoo siv vuam.
Thaum soldering lub Circuit Court board, nco ntsoov tswj lub sij hawm. Yog tias nws ntev dhau lawm, lub rooj tsav xwm Circuit Court yuav raug hlawv, lossis daim ntawv tooj liab yuav poob. Thaum tshem cov khoom los ntawm lub rooj tsav xwm hauv Circuit Court, lo lub hau ntawm cov hluav taws xob soldering hlau rau ntawm qhov sib koom ua ke, thiab rub tawm cov khoom tom qab cov tin ntawm cov khoom sib koom ua ke.
