Kev paub txog kev siv cov hlau soldering thiab cov qauv kev ua haujlwm ntawm cov hlau
A: nkag siab txog cov hlau soldering, soldering hlau yog cov cuab yeej siv feem ntau hauv vuam.
1. Lub luag haujlwm: yog kev hloov pauv ntawm hluav taws xob hluav taws xob rau hauv cov cua sov ntawm qhov vuam taw tes ntawm cov cua sov vuam. Seb qhov vuam yog ib feem loj ntawm kev ua haujlwm yog saib seb qhov kev tswj ntawm nws li cas. Feem ntau hais lus, lub zog ntawm cov hlau soldering ntau dua, qhov kub ntau dua, qhov kub ntawm lub taub hau soldering ntau dua.
2. Lub zog siv hluav taws xob sib txawv: 20W; 25 W; 30W; 40W; 60 W; 100 W.
3. Soldering hlau cua sov daim ntawv: endothermic; cua sov sab nraud.
4. Feem ntau siv cov khoom siv hluav taws xob: cov khoom siv hlau muag, cov tin sucker, tweezers, electrostatic tes nplhaib, kab pheeb ces kaum pliers, absorbent daim txhuam cev.
Thib ob: kev siv cov hlau soldering ceev faj
1. Kev npaj ua haujlwm ua ntej siv cov hlau soldering.
Soldering hlau siv ua ntej lub tin, tshwj xeeb txoj kev yog: lub soldering hlau yuav kub hnyiab tau, tsuas yog yuav tsum tau yaj lub solder, nrog rau cov tin kab sib npaug coated nyob rau hauv lub taub hau ntawm lub soldering hlau, thiaj li hais tias lub taub hau ntawm soldering hlau. uniformly noj ntawm ib txheej ntawm tin. (Faj seeb: cov khoom siv tshiab uas tau muag hauv cov txheej txheem cua sov cov pa luam yeeb yog ib qho tshuaj tiv thaiv ib txwm muaj)
2. Ua haujlwm kom raug.
tuaj yeem ua kom lub cev thiab lub hlwb kev noj qab haus huv ntawm tus neeg teb xov tooj, txo kev raug mob ntawm kev ua haujlwm. Txhawm rau txo cov cua sov cov khoom siv hluav taws xob tsis zoo rau tib neeg, txo qhov nqus ntawm cov pa phem, feem ntau, cov hlau nplaum rau lub qhov ntswg yuav tsum tsis pub tsawg dua 20cm, feem ntau 30cm yog qhov tsim nyog.
3. Ua ntej siv cov hlau soldering, koj yuav tsum xyuas seb qhov voltage puas yog raws li qhov nominal voltage ntawm cov hlau soldering.
4. Cov hlau soldering yuav tsum yog av thiab zoo hauv av.
5. Siv cov hlau nplaum nrog electrostatic tes nplhaib, thiab electrostatic tes nplhaib kom zoo hauv av. (Ceeb toom: static grounding kab thiab hlau grounding kab yuav tsum tau sib cais)
6. Tom qab soldering hlau yog energised, nws yuav tsis tau khob, disassembled thiab ntsia nws hluav taws xob cua sov qhov chaw arbitrarily.
7. Cov hlau nplaum yuav tsum tau muab cia kom qhuav thiab yuav tsum tsis txhob siv nyob rau hauv qhov chaw ntub dej ntau dhau los yog los nag.
8. Thaum tshem lub taub hau ntawm cov hlau soldering, hloov lub hwj chim.
9. Tom qab hloov cov khoom siv hluav taws xob, siv cov hluav taws kub uas seem los tso rau ntawm lub taub hau ntawm cov hlau soldering los tiv thaiv lub taub hau ntawm cov hlau soldering.
10. Thaum muaj txheej txheej dub oxide ntawm lub taub hau hlau, koj tuaj yeem so tawm cov oxide ntawm daim txhuam cev absorbent, thiab tam sim ntawd ntawm lub tin. (Tsis txhob siv rab riam los khawb)
11. Daim txhuam cev yog siv los sau cov tin slag thiab tin hlaws thiab oxides, thiab nws yog tsim nyog los pinch nws nrog koj txhais tes xwb tsis muaj dej.
12. Soldering hlau yuav tsum tsis txhob siv lub zog ntev thiab tsis siv, yog li nws yog ib qho yooj yim uas yuav ua rau cov tub ntxhais hlau soldering kom ceev cov oxidation thiab hlawv, ua kom nws lub neej luv, tab sis kuj yog lub taub hau ntawm cov hlau soldering vim lub sij hawm ntev. cua sov thiab oxidation, thiab txawm yuav "kub tuag" tsis tau "noj tin".
Peb: solder
Solder yog ib hom ntawm cov hlau fusible, nws tuaj yeem ua rau cov khoom siv coj los ua thiab cov ntawv luam tawm Circuit Board txuas cov ntsiab lus txuas ua ke. Tin (Sn) yog ib tug mos mos, malleable silver-dawb hlau, melting point ntawm 232 degree, ruaj khov tshuaj nyob rau hauv chav tsev kub, tsis yooj yim rau oxidise, tsis poob ntawm metallic luster, muaj zog tiv thaiv atmospheric corrosion. Lead (Pb) yog ib lub teeb ntsuab-dawb hlau, melting point ntawm 327 degree, siab purity lead atmospheric corrosion kuj, tshuaj stability, tab sis muaj teeb meem rau tib neeg. Tin nyob rau hauv ib qho kev faib ua feem ntawm txhuas thiab ib tug me me ntawm lwm yam hlau yuav ua tau rau hauv ib tug tsawg melting point, zoo txav mus los, muaj zog adhesion rau lub Cheebtsam thiab nyob ntawm tej, siab mechanical zog, zoo hluav taws xob conductivity, tsis yooj yim rau oxidise, corrosion kuj, zoo, ci thiab zoo nkauj solder pob qij txha solder, feem ntau hu ua solder. Solder raws li tus nqi ntawm cov tin tuaj yeem muab faib ua 15 hom, raws li tus nqi ntawm cov tin thiab impurities
Cov tshuaj muaj pes tsawg leeg ntawm cov ntsiab lus tin thiab impurities tau muab faib ua S, A, B peb qib. Tes soldering feem ntau siv hlau solder. (Tam sim no kuj tau siv ib puag ncig tus phooj ywg tsis muaj hlau lead-dawb solder)
4: flux
Flux feem ntau tuaj yeem muab faib ua inorganic flux, organic flux thiab resin flux, tuaj yeem yaj tshem tawm cov oxides ntawm qhov chaw ntawm cov hlau, thiab hauv cov khoom siv cua sov.
Nyob ib puag ncig ntawm cov hlau, kom nws cais tawm ntawm huab cua, tiv thaiv oxidation ntawm cov hlau thaum rhuab; tuaj yeem txo qhov nro ntawm lub melted solder, uas yog conducive rau wetting ntawm lub solder. (Rosin yog ib qho kev hloov pauv hauv ntuj)
