5- kauj ruam txoj hauv kev kom raug soldering nrog hluav taws xob soldering hlau
1. Ib qho khoob
Scraping txhais tau tias ntxuav qhov saum npoo ntawm cov hlau kom welded ua ntej vuam. Koj tuaj yeem siv rab riam, seem hlau saw hniav, thiab lwm yam los txhuam tawm (los yog xuab zeb tawm nrog cov ntawv xuab zeb zoo, los yog tshem tawm nrog cov ntxhib ntxhib ntxhib) txheej oxide, roj stain lossis pleev xim rau ntawm qhov chaw vuam. kom txog thaum cov hlau tshiab tau nthuav tawm. Lub rooj tsav xwm luam ntawv tus kheej kuj yuav tsum tau ua tib zoo polish rau sab ntawm cov ntawv ci nrog cov ntawv xuab zeb zoo los yog dej xuab zeb ua ntej soldering. "Scraping" yog ib kauj ruam tseem ceeb los xyuas kom meej qhov zoo ntawm vuam, tab sis nws feem ntau tsis quav ntsej los ntawm cov neeg pib tshiab. Yog hais tias lub scraping tsis nyob rau hauv qhov chaw, tinning thiab vuam yuav tsis zoo. Nws yuav tsum raug sau tseg tias qee cov khoom siv lead ua tau plated nrog nyiaj, kub lossis tinned. Tsuav lawv tsis oxidized los yog tev tawm, tsis tas yuav khawb lawv. Yog hais tias muaj av nyob rau saum npoo, nws tuaj yeem wiped tawm nrog ib tug ntxhib eraser. Qhov kev xaiv ntawm cov ntxhib ntxhib ua haujlwm zoo tshaj plaws nrog cov lwv loj rau kev kos duab. Qee qhov kub-plated siv lead ua triode tus pin coj, thiab lwm yam, yuav nyuaj rau phaj nrog tin tom qab txheej txheej yog khawb tawm. Tsis muaj teeb meem dab tsi ntawm "scraping" yog saws, nws yog ib qho tsim nyog yuav tsum tau them sai sai rau kev hloov pauv cov pins txuas mus tas li los ntxuav tag nrho ib ncig ntawm cov pins.
2. Thib ob plating
Plating yog los enamel qhov chaw yuav tsum tau soldered. Tom qab "scraping" cov khoom siv pins, lub taub hau hlau thiab lwm yam khoom siv, qhov tsim nyog ntawm flux yuav tsum tau siv tam sim ntawd, thiab txheej nyias ntawm cov tin yuav tsum tau plated nrog cov hluav taws xob soldering hlau los tiv thaiv qhov chaw los ntawm re-oxidizing thiab txhim kho cov khoom. solderability ntawm cov khoom. poj niam deev. Lub plated solder txheej yuav tsum yog nyias thiab sib xws, yog li tus nqi ntawm cov tin ntawm lub taub hau ntawm cov hlau yuav tsum tsis txhob ntau dhau txhua zaus. Rau cov khoom siv xws li Crystal diodes thiab cov trysors uas tau ntshai cua sov, koj yuav tsum siv lub ntsej muag ua kom sov, thiab tom qab ntawd tin-phaj nws. Tinning ntawm cov khoom yog cov txheej txheem tseem ceeb los tiv thaiv cov kev phom sij zais xws li cov khoom cuav thiab cov khoom cuav hauv cov cuab yeej siv tshuab, thiab nws yuav tsum tsis txhob sloppy.
3. Peb qhov kev xeem
Kev ntsuam xyuas yog los xyuas cov khoom uas tau tinned kom pom tias cov khoom puas muaj scalding, deformation, lap welding (luv Circuit Court), thiab lwm yam nyob rau hauv qhov kub ntawm cov hluav taws xob soldering hlau. Rau cov khoom xws li cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, thiab cov hluav taws xob sib xyaw ua ke, lub tshuab hluav taws xob yuav tsum tau siv los xyuas seb lawv cov khoom puas ntseeg tau, thiab cov khoom uas pom tias tsis muaj kev ntseeg siab lossis puas tsuaj yuav tsum tsis txhob siv dua.
4. Plaub vuam
Soldering yog solder lub "kuaj" cov khoom tsim nyog rau lub rooj tsav xwm luam tawm lossis txoj haujlwm raug xaiv raws li qhov xav tau. Thaum soldering, koj yuav tsum paub qhov kub thiab txias lub sij hawm ntawm cov hluav taws xob soldering hlau. Yog tias qhov ntsuas kub tsawg dhau thiab lub sijhawm luv luv, qhov chaw ntawm cov tin yuav muaj burr-zoo li tails, qhov saum npoo tsis du, lossis txawm tias taum curd residue. Tom qab tag nrho cov evaporated, ib tug npaum li cas ntawm flux yog sab laug ntawm lub solder thiab cov hlau. Tom qab txias, lub solder thiab hlau nto yog daig los ntawm cov flux (rosin), thiab tuaj yeem rub tawm nrog me ntsis quab yuam. Qhov no yog qhov hu ua cuav soldering.
Tsis tas li ntawd, thaum qhov kub ntawm cov hluav taws xob soldering hlau yog tsawg heev, nws xav tau solder, thiab cov tin ntawm lub solder sib koom ua ke qeeb heev. Cheebtsam raug puas tsuaj (xws li melting ntawm capacitor yas pob, tsis kam hloov ntawm resistors vim tshav kub, thiab lwm yam), tshwj xeeb tshaj yog transistors, uas yuav puas thaum lub core yog rhuab tshaj 100 degree. Piv txwv li, yog hais tias qhov kub ntawm cov hlau soldering yog siab dhau lawm thiab lub sij hawm soldering yog ntev dua, lub solder nto yuav oxidized, solder txaus yuav kis tau, thiab solder pob qij txha yuav tsis noj txaus tin. Tsuas yog ib qho me me ntawm cov solder yuav txuas cov khoom ua rau cov hlau nto, thiab kev tiv thaiv kev sib cuag yuav tsawg heev. Yog tias nws loj, nws yuav raug txiav tawm sai li sai tau thaum nws rub tawm. Qhov no yog qhov hu ua virtual soldering. Txawm hais tias qhov kub ntawm cov hluav taws xob soldering hlau yog qhov tsim nyog tuaj yeem txiav txim siab los ntawm kev paub raws li qhov ntev ntawm lub sij hawm tinning ntawm lub taub hau hlau thiab tus nqi ntawm cov hlau txuas rau lub taub hau. Lub sijhawm vuam ntev yuav tsum xyuas kom meej tias cov pob qij txha yog du thiab ci, feem ntau 2 mus rau 3s, thiab cov pob qij txha loj me me yuav tsum tsis pub tshaj 5s. Vuam transistors thiab lwm qhov chaw tsis muaj zog tseem zoo ib yam li thaum tinning, siv cov tweezers, koob-qhov ntswg pliers, thiab lwm yam los clamp lub hauv paus ntawm tus pin los pab cov cua sov dissipation.
Tsis tas li ntawd, tus nqi ntawm solder yuav tsum tsim nyog. Tsis txhob siv lub loj loj ntawm cov solder los paste lub solder sib koom. Cov txheej txheem ntawm cov hlau lead tuaj yeem pom qhov txawv ntawm qhov sib txawv ntawm cov tin saum npoo ntawm qhov sib koom ua ke, thiab cov duab hluav taws xob pom los ntawm sab ntawm qhov sib koom tes yog qhov tsim nyog sib koom ua ke. taw tes. Thaum soldering nrog lub tes tuav tes, tsis txhob siv lub taub hau ntawm lub taub hau los txhuam cov nplaum nplaum rov qab los yog kov nws nyuaj. Nyob rau hauv qhov tseeb, ntev li ntev raws li qhov chaw sib cuag ntawm lub tinned ib feem ntawm lub soldering hlau taub lub bevel thiab lub soldering nto yog nce, lub tshav kub yuav tau zoo xa mus los ntawm lub soldering hlau taub mus rau lub solder sib koom. ib feem. Nws yuav tsum tau muab sau tseg tias tom qab lub soldering tiav thiab soldering hlau raug tshem tawm, tos kom txog rau thaum lub solder ntawm lub solder sib koom ua ke tag nrho solidified (4 mus rau 5 vib nas this), thiab ces loosen lub tweezers los yog ob txhais tes kho cov tivthaiv, txwv tsis pub cov hlau lead. xaim ntawm qhov welded tuaj yeem tawm, los yog qhov chaw ntawm qhov sib koom ua ke yuav zoo li tofu residue. Tom qab vuam, yog tias koj pom tias tus Tsov tus tw ntawm qhov sib koom ua ke tau rub tawm, siv lub hau ntawm lub tshuab hluav taws xob los txhuam cov rosin, thiab tom qab ntawd kho qhov vuam kom tshem tawm nws.
Yog tias muaj cov npoo thiab cov fab, nws txhais tau hais tias lub sijhawm vuam ntev dhau lawm, thiab nws yuav tsum tau tshem cov khib nyiab thiab rov ua dua. Cov khoom ntawm lub rooj tsavxwm luam tawm yuav tsum raug tshem tawm thiab tom qab ntawd soldered. Yuav tsum muaj qhov sib txawv ntawm 2 mus rau 4 hli ntawm lub cev tivthaiv thiab lub rooj tsav xwm hauv Circuit Court, thiab nws yuav tsum tsis txhob nyob ze ntawm lub rooj tsavxwm. Lub transistor yuav tsum siab dua. Rau cov khoom loj dua, tom qab tso rau hauv lub qhov ntawm lub rooj tsavxwm, cov hlau lead tuaj yeem khoov tau 90 degree raws li cov kev taw qhia ntawm Circuit Court tooj liab ntawv ci sawb, tawm hauv qhov ntev ntawm 2 hli thiab flattened ua ntej vuam kom ruaj khov. Thaum welding siab input impedance pab kiag li lawm xws li kev sib txuas, yog tias qhov kev txhim khu kev qha ntawm cov hluav taws xob soldering hlau plhaub thiab hauv av tsis tuaj yeem lav tau, koj tuaj yeem siv cov cua sov uas seem rau vuam tom qab tshem tawm cov hluav taws xob soldering hlau fais fab ntsaws. Thaum soldering Circuit Court boards, nws tseem muaj peev xwm mus ntxig cov resistors ua ntej, thiab tom qab point-by-point welding, siv pliers los yog ntsia thawv clippers txiav tawm qhov ntev ntawm cov leads, thiab ces solder loj Cheebtsam xws li capacitors, thiab thaum kawg solder lawv. Thaum tshav kub kub-resistant thiab yooj yim transistors, integrated circuits, thiab lwm yam.
5. Tsib daim tshev
Kev tshuaj xyuas yog los xyuas qhov zoo ntawm cov welded Circuit Court. Yuav tsum tsis muaj qhov cuav vuam, vuam virtual, qhib Circuit Court thiab luv Circuit Court nyob rau hauv cov pob qij txha, tshwj xeeb tshaj yog seb cov pins ntawm cov polar Cheebtsam xws li electrolytic capacitors thiab transistors yog welded kom raug. Qhov zoo ntawm vuam yuav raug txiav txim los ntawm cov xim thiab gloss ntawm cov pob qij txha, qhov degree ntawm diffusion, thiab tus nqi ntawm solder. Kev vuam zoo, cov pob qij txha muaj lub ntsej muag ci dawb, uas tuaj yeem pom ntawm ib nrais muag raws li kev paub; Yog hais tias cov xim thiab luster ntawm lub solder yog stained los yog nto tsis sib xws, nws qhia tau hais tias tsis zoo vuam.
Cov khoom siv ntau dhau tsis tsuas yog ua tsis tau raws li qhov xav tau ntawm kev ua kom lub zog muaj zog, tab sis kuj tsim kev pheej hmoo ntawm kev sib tsoo virtual thiab kev sib tsoo nrog cov pob qij txha nyob ze (luv luv luv). Nws yog rooj plaub uas tus nqi ntawm cov solder tsis txaus. Nyob rau hauv cov ntaub ntawv no, nws tsis yog yooj yim mus pom tej yam tsis xws luag nyob rau hauv thawj theem ntawm vuam, tab sis tom qab ib tug lub sij hawm ntawm lub sij hawm, nws yuav poob tawm vim kev co los yog co. Rau cov teeb meem tsis zoo ntawm cov pob qij txha, kho vuam ntsuas yuav tsum tau ua kom cov vuam zoo txaus siab.
