Soldering Techniques piav nyob rau hauv Electronics Fabrication
Soldering thev naus laus zis yog ib qho txuj ci tseem ceeb hauv kev tsim hluav taws xob. Nws yog teev nyob rau hauv cov ntaub ntawv ntawm kev txawj ua hauj lwm nyob rau hauv cov tsev kawm ntawv theem nrab uas cov tub ntxhais kawm yuav tsum: kawm siv hluav taws xob soldering irons, thiab master general vuam txoj kev. Vuam tshuab feem ntau suav nrog: scraping, enamelling, vuam thiab lwm yam txheej txheem.
1. Kev npaj rau vuam
Ua ntej tshaj plaws, nws yog ib qho tsim nyog los xyuas seb qhov kev ua tau zoo ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob puas yog qhov zoo, txhawm rau tiv thaiv cov teeb meem ua ntej lawv tshwm sim; Nyob rau tib lub sijhawm, kev ntsuas kub ntxhov yuav tsum tau tsim, thiab cov tub ntxhais kawm yuav tsum nruj me ntsis kom ua raws li kev qhuab qhia, vim tias cov tub ntxhais kawm tsis ua raws li kev qhuab qhia yog qhov loj tshaj plaws ntawm kev sib tsoo. Solder (feem ntau yog siv cov hlau nplaum), cov hlau muag muag, lub thawv solder, flux (feem ntau siv rosin), hlau strippers, peach pliers, tweezers, thiab lwm yam. qhov loj ntawm qhov vuam. 20w sab hauv cua sov hluav taws xob soldering hlau feem ntau yog siv hauv hluav taws xob ntau lawm.
2. Kev ua haujlwm tshwj xeeb
(1) Feem ntau muaj ob txoj hauv kev los tuav cov hlau soldering: "tus cwj mem tuav style" thiab "riam tuav style". Kev siv lub tshuab hluav taws xob sab hauv feem ntau yog siv txoj kev "tuav tus cwj mem" (pom hauv daim duab 1).
(2) Thaum vuam, qhov kev ncua deb ntawm lub taub hau ferrochrome thiab qhov kawg ntawm tus neeg teb xov tooj lub qhov ntswg yuav tsum yog li 20cm.
3. Cov kauj ruam
(1) tinning ntawm hluav taws xob soldering hlau thiab weldments. General weldments muaj xws li cov khoom siv lead ua, cov xov hlau thiab cov ntawv luam tawm. Cov txheej txheem tinning ntawm cov xov hlau thiab cov khoom siv lead ua tuaj yeem decomposed rau hauv cov txheej txheem xws li stripping, scraping, thiab enamelling. Cov txheej txheem no tuaj yeem ua qauv qhia nrog kev pab ntawm slides, duab, thiab yeeb yaj duab.
Lub enamel ntawm lub soldering hlau taub. Ob qho tag nrho cov tshiab soldering hlau taub thiab cov oxidized soldering hlau taub yuav tsum tau tinned ua ntej siv lub soldering hlau taub. Ua ntej tinning, ua ntej polish nws nrog cov ntawv xuab zeb lossis cov ntaub ntawv zoo kom nthuav tawm cov xim tooj liab. Tus tshiab soldering hlau taub tuaj yeem rub rov qab thiab tawm ntawm cov hniav saum npoo ntawm cov ntawv xuab zeb zoo. Hauv kev ua haujlwm no, cov tub ntxhais kawm yuav tsum tau ceeb toom kom siv lub zog quab yuam thiab tsis txhob ua kom lub ntsej muag du. Tom qab sib tsoo thiab ntxuav, nws tuaj yeem tig thiab ua kom sov li 2 mus rau 3 feeb. Lub taub hau ntawm cov hlau nplaum yuav pib "noj" lub tin, thiab tom qab ntawd nws yuav rov qab ua dua rau ntawm daim ntawv xuab zeb zoo nrog cov rosin hais kom txog rau thaum ib txheej nyias ntawm tin tau dai rau ntawm cov hniav. Txoj haujlwm no yog qhov tseem ceeb. Txwv tsis pub, thaum lub sij hawm cua sov txheej txheem ntawm cov hlau soldering, tsis sib xws tinning yuav tshwm sim vim oxidation ceev. Rau cov hlau uas tau siv ntev, yog tias muaj cov pits ntawm cov hniav, koj yuav tsum siv cov ntaub ntawv kom du cov pits ua ntej tinning.
2) tinning ntawm cov xov hlau thiab cov khoom siv lead ua. Cov hlau feem ntau muaj cov ntaub thaiv insulating, thiab stripping lub rwb thaiv tsev sheath ntawm cov hlau kawg tuaj yeem ua tiav nrog cov hlau strippers, txiab thiab lwm yam cuab yeej, thiab cov txheej txheem ntawm grilling nrog cov ntais ntawv tsis pom zoo. Lub tev ntawm daim tawv nqaij kawg yog feem ntau txog 1 cm.
Cov hlau xaus thiab cov khoom ua rau yuav tsum tau "scraped" kom tshem tawm cov txheej txheej oxide ua ntej soldering, yog li lawv tuaj yeem raug soldered nrog tin. Thaum ntxuav, koj tuaj yeem xa mus rau daim duab 2 thiab siv qhov tawg ntawm cov hlau sawb los yog cov ntawv xuab zeb los txhuam cov hlau lead me me kom tshem tawm cov av thiab oxides. Ib ntu luv ntawm cov hauv paus hniav ntawm cov hlau lead yuav tsum tau muab pov tseg kom tsis txhob muaj cov hauv paus hniav ntawm cov hlau lead los ntawm kev khawb thiab ua rau cov khoom puas tsuaj. Tom qab muab cov hlua khi ntawm ib qho los ntawm ib qho, ntswj cov hlua ntawm cov hlua khi rau hauv ib txoj hlua raws li qhia hauv daim duab 3.
Ua ntej kawm los txiav txim qhov ua haujlwm kub ntawm hluav taws xob soldering hlau. Thaum cov hlau nplaum yog energized rau 2 mus rau 3 feeb, kov lub ntsis ntawm cov hlau soldering rau rosin. Yog hais tias rosin ua suab nrov thiab tawm cov pa luam yeeb dawb, nws txhais tau hais tias qhov kub ntawm cov hlau soldering yog qhov tsim nyog thiab tuaj yeem siv rau kev siv vuam. Muab cov hlau txhuam los yog cov khoom siv lead ua rau ntawm cov rosin, nias cov hlau lead maj mam nrog lub ntsis ntawm cov hlau soldering, txav mus raws cov hlau lead thaum tig cov hlau lead, kom cov hlau lead sib npaug nrog ib txheej ntawm cov tin.
(2) vuam
1) Vuam qhov tseem ceeb. Siv cov khoom seem thiab cov xov hlau ua welding rau kev xyaum. Lap cov hlau lead ntawm cov khoom siv nrog cov sib koom ua ke, muab cov hlau nplaum rau hauv qhov tsim nyog ntawm cov khoom siv, thiab ua kom lub taub hau ntawm cov hlau nplaum ze rau ntawm cov khoom sib txuas; Thaum lub solder ntawm lub solder sib koom yog tag nrho melted, maj mam tig lub soldering hlau taub kom tshem tawm cov tshaj solder, thiab ces qaij nws 45 degrees saum toj no. Tshem tawm qhov sib koom ua ke sai sai hauv qhov kev taw qhia angular. Ua ntej lub solder ntawm lub solder sib koom ua ke yog kiag li solidified, lub clamp los yog koob-qhov ntswg pliers tuav cov hlau lead yuav tsum tsis txhob co txhua, txwv tsis pub nws yog heev yooj yim mus ua cuav soldering. Qhov no yog tus yuam sij kom ntseeg tau qhov zoo ntawm cov pob qij txha.
2) Kev vuam tsis raug. Vuam yog tsim ntawm cov pob qij txha ntawm qhov chaw nruab nrab ntawm cov khoom, cov ntawv luam tawm, thiab cov pob qij txha, tab sis cov khoom siv hluav taws xob sab hauv ntawm cov pob qij txha tsis txuas nrog, thiab cov hlau lead ntawm cov khoom siv tsis zoo nrog cov pob qij txha, ua rau muaj kev sib txuas ntawm cov hlau nplaum. Circuit Court kom qhib thiab tawm ntawm lub sijhawm. Nws raug nquahu kom siv cov cuab yeej siv pom kev rau kev siv vuam virtual hauv kev qhia, kom cov tub ntxhais kawm tuaj yeem nkag siab tob txog qhov kev puas tsuaj ntawm vuam virtual rau kev ua haujlwm ib txwm ntawm tag nrho lub tshuab hluav taws xob, thiab piav qhia cov laj thawj tseem ceeb rau kev vuam virtual.
Muaj ntau qhov laj thawj rau kev vuam cuav. Lub tin zoo ntawm cov hlau lead thiab cov ntawv luam tawm ua ntej vuam tsis siab; Thaum lub sij hawm welding, lub vuam tsis yog clamped stably; qhov kub ntawm cov hlau soldering yog tsawg lossis siab dhau; flux tsis ua raws li cov kev cai, thiab lwm yam.
3) Kev tsim khoom. Thaum desoldering, qhov kub ntawm cov hlau soldering yuav tsum tsis txhob qis dhau; lub ntsis ntawm cov hlau soldering feem ntau tsis xav tau sulfur tin. Thaum cov hlau nplaum kov lub vuam ib pliag, cov khoom yuav tsum tau rub tawm sai sai. Thaum rub tawm cov khoom, tsis txhob siv lub zog ntau dhau kom tsis txhob ua rau cov khoom puas. Lub desoldering ib feem yuav tsum tau muab ntxuav nyob rau hauv lub sij hawm, thiab nws yuav tsum tau ua tib zoo xyuas seb lub Circuit Court uas nyob ib sab yog luv luv los yog qhib vim desoldering.
