Xya kauj ruam los tsim kom tau ib lub taub hau ntev ntev
Lub taub hau hlau yog tsuas yog ib qho khoom siv me me hauv kev siv hluav taws xob vuam. Nws yog siv ua ke nrog cov hluav taws xob soldering hlau. Txawm li cas los xij, vim muaj kev siv ntau thiab poob, ntau tus neeg mob taub hau, tshwj xeeb tshaj yog tias nws tsis yog tinned thaum lub sij hawm vuam thiab tig dub. Tos rau qhov xwm txheej. Nws tsis muaj peev xwm heev. Tus neeg twg uas ua vuam yuav muaj qhov kev paub no. Koj puas tau muaj ib tug? Ib txhia phooj ywg hais tias lub taub hau hlau kuv yuav yog ib qho zoo! Yog vim li cas? Yuav ua li cas kuv thiaj muaj lub laj kab laj kab ntev ntev? Tom ntej no, kuv yuav tham txog kev siv lub laj thawj ntawm kev siv cov hlau nplaum los ntawm peb yam: xaiv cov hlua hlau taub hau, ua ntej, thaum siv thiab tom qab siv, thiaj li ua kom koj cov hlau taub hau muaj zog dua.
Nto moo 1: Soldering tip xaiv
Nws yog ib qho tseem ceeb heev uas yuav tau xaiv qhov tseeb qhov loj me thiab lub taub hau. Kev xaiv cov lus qhia zoo tuaj yeem ua rau kev ua haujlwm zoo dua thiab ua rau kom muaj zog thiab lub neej ntawm lub taub. Xaiv qhov tsis ncaj ncees lawm cov hlau nplaum yuav tiv thaiv cov hlau tsis zoo los ntawm kev ua haujlwm ntawm nws qhov ua tau zoo tshaj plaws, uas tseem yuav txo qhov vuam zoo thiab nce nqi ntau lawm.
Vim li cas nws tseem ceeb heev uas yuav tsum xaiv qhov tseeb qhov loj me thiab cov duab? Vim hais tias qhov loj ntawm lub taub hau soldering yog ncaj qha ntsig txog lub peev xwm ntawm cov cua sov. Qhov loj dua ntawm cov hlau taub hau, qhov muaj peev xwm kub ntau dua. Qhov me me ntawm cov hlau taub hau, qhov me me ntawm lub peev xwm kub. Thaum ua haujlwm tas mus li, qhov loj ntawm qhov taub, qhov me me qhov kub poob. Tsis tas li ntawd, vim hais tias lub taub hau loj loj muaj lub peev xwm kub kub, qhov kub tsis tshua muaj peev xwm siv tau thaum lub sij hawm vuam, uas ua rau cov hlau taub hau tsis tshua muaj oxidize thiab ua rau nws txoj sia. Feem ntau hais lus, qhov loj ntawm lub taub hau yuav tsum yog qhov uas nws tsis cuam tshuam rau cov khoom nyob ib sab. Xaiv qhov loj me geometric uas tuaj yeem tiv tauj rau qhov sib koom ua ke tuaj yeem txhim kho vuam efficiency.
Nthuav 2: Tswj qhov kub thiab txias ntawm cov hlau taub hau
B. Tsawg-kub vuam yuav tsum tau siv ntau li ntau tau thaum lub vuam txheej txheem. Qhov kub thiab txias yuav ua kom cov oxidation ntawm cov hlau taub hau thiab txo lub neej ntawm cov hlau taub hau. Yog tias qhov kub ntawm qhov kub ntawm qhov kub siab tshaj 470 degree, nws cov oxidation tus nqi yog ob zaug sai npaum li thaum lub soldering hlau taub yog siv ntawm 380 degree.
a): Kho cov khoom tsis muaj hlau lead SMD
1) Txhawm rau kho cov khoom sib xws xws li 0603, 0805, thiab 3216, qhov kub ntawm cov hlau yog: 350 degree ± 50 degree.
2) Thaum kho IC, soldering hlau kub yog 350 degree ± 50 degree:
3) Kho cov khoom uas muaj cov khoom siv hlau lossis cov khoom siv nrog cov chaw sib cuag loj uas dissipate cua sov sai. Qhov kub ntawm cov hlau soldering yog: 380 degree ± 50 degree.
b): Kho cov khoom tsis muaj hmoov txhuas THD
1) Kho cov khoom siv zoo tib yam xws li 1/4W, 1/2W resistors, me me transistors, me me muaj peev xwm capacitors nrog qis sab hauv voltage, IC, diodes thiab lwm yam me me. Qhov kub ntawm cov hlau soldering yog: 340 degree ± 50 degree.
2) Thaum kho cov khoom uas muaj hlau xws li radiators, electrolytic capacitors nrog lub siab sab hauv thiab muaj peev xwm loj, high-voltage diodes, torches thiab lwm yam ntaub ntawv loj, soldering hlau kub yog: 380 degree ± 50 degree.
3) Kho qhov txuas txuas uas muaj cov tawv yas. Qhov kub thiab txias yog: 350 degree ± 50 degree.
Nthuav dav 3: Lub zog muab rau lub taub hau hlau thaum lub sij hawm vuam txheej txheem
Tshwj xeeb tshaj yog thaum novices vuam, lawv yuav siv sij hawm ntau heev, uas yuav ua rau puas thiab deform lub soldering hlau taub, vim hais tias lub dav dav ntawm lub soldering hlau taub thaum vuam yog siab tshaj 350 degrees, thiab ib co loj qhov chaw yuav txawm ntau dua, thiab tooj liab. yog nyob rau ntawm qhov kub thiab txias Nws tsis yog qhov nyuaj ntawm qhov kub thiab txias, yog li nws cov duab hloov tau yooj yim. Feem ntau, lub zog peb siv tsuas yog tso cai rau lub taub hau ntawm lub taub hau kom tag nrho kev sib cuag nrog cov sib koom ua ke, thiab cov cua sov tuaj yeem hloov mus.
Nthuav 4: Nco ntsoov khaws cov tin ntawm lub taub hau hlau thaum nws tsis siv.
Qhov no tuaj yeem txo txoj hauv kev ntawm oxidation ntawm lub taub hau ntawm cov hlau, ua rau cov hlau taub hau ntau ruaj thiab ntev ntev. Tom qab siv, qhov kub ntawm lub taub hau hlau yuav tsum tau txo qis me ntsis ua ntej ntxiv cov hlau tshiab, feem ntau yog 250 degrees, kom cov tin plating txheej muaj cov nyhuv anti-oxidation zoo dua. Txoj hauj lwm no yooj yim tab sis tseem ceeb, thiab feem ntau underestimated los ntawm tib neeg.
Paub meej 5 Kev Kho
Yog tias koj pom cov oxide dub ntawm lub taub hau hlau, nws txhais tau hais tias lub taub hau hlau yog oxidized thiab yuav tsis tau tinned. Lub sijhawm no, nws yuav tsum tau ntxuav tam sim ntawd. Thaum ntxuav, ua ntej kho qhov kub ntawm lub taub hau ntawm lub taub hau kom txog 250 degree, tom qab ntawd tos ib pliag, tom qab ntawd siv daim txhuam cev ntxuav los ntxuav cov hlau taub hau, thiab tom qab ntawd siv cov tin. Rov ua qhov kev txiav txim kom txog thaum cov oxide raug tshem tawm. Yog li ntawd, peb yuav tsum xyuam xim rau tinning lub taub hau soldering thaum tsis siv. Yog tias nws raug ntxuav tas li, tus neeg teb xov tooj yuav ntxhov siab. Qhov tseem ceeb tshaj, lub neej ntawm lub taub hau ntawm cov hlau soldering yuav raug cuam tshuam.
Nco ntsoov: Nco ntsoov ua tib zoo mloog cov cuab yeej koj xaiv thaum tu: tsis txhob siv cov ntawv xuab zeb lossis cov khoom tawv los ntxuav lub taub hau.
Nthuav dav 6: Siv cov flux tsim nyog
Fluxes nrog kev ua haujlwm siab lossis muaj zog corrosiveness yuav ua rau kom qhov corrosion ntawm cov hlau taub hau thaum rhuab, yog li yuav tsum xaiv cov flux qis. Qhov no yuav tsis tsuas yog tiv thaiv lub neej ntawm soldering hlau taub thiab ua rau kom lub siab ntev ntawm lub taub hau soldering, tab sis kuj muaj txiaj ntsig zoo rau cov hlau taub hau. Txuag tus nqi ntawm cov khoom siv vuam thiab txhim kho cov txiaj ntsig vuam.
Nthuav dav 7: Tom qab vuam, muab lub vuam hlau rau ntawm qhov vuam ncej
Thaum cov hlau tsis xav tau, cov hlau nplaum yuav tsum tau ua tib zoo muab tso rau ntawm cov hlau uas tsim nyog los tiv thaiv cov hlau taub hau los ntawm kev sib tsoo.
