Soldering yog txheej txheem ntawm kev sib koom ua ke 2 hlau nrog ib leeg rau kev sib koom ua ke kom muaj zog thiab ruaj khov. Qhov no yog ua los ntawm kev siv cov hlau muab tub lim.
Cov txheej txheem ntawm kev sib txuas hlau nrog ib leeg yog siv dav hauv cov khoom siv hluav taws xob. Cov kav dej thiab cov hlau ua haujlwm kuj tseem siv cov txheej txheem no.
Nyob ntawm cov ntaub ntawv, ntau hom dej ntws siv. Electronics soldering yog ib qho chaw rhiab heev uas cov flux siv yuav tsum muaj qee yam cwj pwm, xws li tsis yog conductivity.
Hauv tsab xov xwm no, kuv yuav qhia koj txog cov hom flux uas siv hauv cov khoom siv hluav taws xob, thiab koj yuav tsum xav txog dab tsi ua ntej siv ib qho ntawm koj tus kheej.
Hauv kab ntawv no peb yuav npog:
- Yog vim li cas flux yuav tsum tau nyob rau hauv electronics soldering?s Flux Yuav tsum tau nyob rau hauv Electronics Soldering
- Oxidation: Puas yog qhov phem?
- Kev siv cov flux tshem tawm oxidation
- Ntau hom flux hauv hluav taws xob soldering
- Hom flux kom tsis txhob nyob rau hauv electronics soldering: Inorganic acid flux
- Siv hom flux zoo rau txoj haujlwm
Yog vim li cas flux yuav tsum tau nyob rau hauv electronics soldering?s Flux Yuav tsum tau nyob rau hauv Electronics Soldering
Thaum koj sim sau cov ntsiab lus sib koom ntawm 2 hlau nrog lwm cov hlau (uas yog qhov tseem ceeb tshaj plaws), cov av thiab cov khib nyiab ntawm cov hlau no cuam tshuam kev tsim cov kev sib koom tes zoo. Koj tuaj yeem tshem tawm thiab ntxuav cov av uas tsis yog oxidizing los ntawm cov chaw no yooj yim, tab sis koj yuav tsum siv cov flux thaum koj tab tom sim tshem tawm oxidation.
Oxidation: Puas yog qhov phem?
Oxidation yog ib yam dab tsi. Tab sis qhov ntawd tsis tau txhais hais tias nws yog txhua yam zoo.
Tag nrho cov hlau reacts nrog cov pa oxygen nyob rau hauv cov huab cua thiab los ntawm complex chemical compounds ntawm cov hlau nto uas yog ib qho nyuaj rau tshem tawm thiab ua rau nws nyuaj heev rau solder. Oxidation feem ntau hu ua xeb ntawm hlau.
Kev siv cov flux tshem tawm oxidation
Flux yog lwm cov tshuaj lom neeg uas ua rau oxidation, nyob rau hauv qhov kub thiab txias, dissolving, thiab tshem tawm oxidation. Koj yuav tsum nquag siv flux los ntxuav oxidation ntawm koj lub taub hau hlau vim tias qhov kub thiab txias ua kom nws nrawm dua.
Nco ntsoov qhov no yog tias koj xav tau los ua koj tus kheej cov hlau txuas.
Ntau hom flux hauv hluav taws xob soldering
Cov flux uas tau siv rau ntawm cov hluav taws xob hluav taws xob tsis yog tib yam li cov siv ntawm cov xov hlau vim lawv xav tau cov khoom sib txawv ntawm flux.
Hauv qab no, kuv yuav qhia koj txog txhua hom flux uas muaj nyob rau hauv kev ua lag luam rau cov khoom siv hluav taws xob.
Rosin dej ntws
Kev ntaus tag nrho lwm cov fluxes ntawm lub hnub nyoog yog rosin flux.
Thaum lub sij hawm thaum ntxov ntawm kev tsim khoom, rosin fluxes tau tsim los ntawm cov ntoo thuv ntoo. Tom qab cov sap tau sau, nws yog refined thiab purified rau hauv rosin flux.
Txawm li cas los xij, niaj hnub no, lwm yam tshuaj sib txawv thiab cov fluxes yog tov nrog refined ntoo thuv los ua rosin flux.
Rosin flux hloov mus ua kua qaub thiab ntws yooj yim thaum rhuab. Tab sis thaum txias, nws yuav khov thiab inert.
Nws muaj txiaj ntsig zoo hauv kev tshem tawm oxidation ntawm cov hlau. Tom qab siv nws ntawm circuits, koj tuaj yeem tawm hauv nws cov khoom, inert xeev. Nws yuav tsis hnov mob nrog lwm yam tshwj tsis yog tias nws tau kub txaus kom tig mus rau hauv cov kua qaub.
Yog tias koj xav tshem tawm cov seem tom qab siv rosin flux, koj yuav tsum siv cawv, vim nws tsis yog dej-soluble. Yog vim li cas koj yuav tsum siv cawv es tsis txhob haus dej.
Tab sis tsis muaj teeb meem hauv kev tawm hauv seem li nws yog, tshwj tsis yog tias koj xav ua txoj haujlwm ntse ntawm kev ua kom koj lub rooj tsav xwm huv si.
Organic acid flux
Organic acids xws li citric acid, lactic acid, thiab stearic acids yog siv los tsim hom flux. Qhov tsis muaj zog ntawm cov kua qaub no, ua ke nrog isopropyl cawv thiab dej, tsim cov organic acid fluxes.
Qhov zoo tshaj plaws ntawm cov organic acid fluxes yog lawv cov dej-soluble, tsis zoo li rosin flux.
Ntxiv rau qhov ntawd, raws li cov khoom siv acidic ntawm cov organic acid fluxes siab dua rosin fluxes, lawv muaj zog dua. Yog li ntawd, lawv tuaj yeem ntxuav cov oxides tawm ntawm qhov chaw hlau sai dua.
Ua khub no oxidation tshem tawm lub zog nrog nws cov soluble xwm, thiab koj muaj ib qho yooj yim-rau-huv flux residue. Tsis tas yuav haus cawv!
Txawm li cas los xij, qhov kev pab tu tu no los ntawm tus nqi. Koj poob cov khoom tsis yog conductivity ntawm rosin flux residue vim nws yog hluav taws xob conductive thiab tuaj yeem cuam tshuam rau tag nrho cov kev ua tau zoo thiab kev ua haujlwm ntawm lub voj voog.
Yog li xyuas kom tseeb tias koj tshem tawm cov flux residue tom qab soldering.
Tsis huv flux
Ib yam li lub npe qhia, koj tsis tas yuav ntxuav cov residue los ntawm hom flux. Nws tsim ib qho me me piv rau lwm 2 fluxes.
Tsis muaj dej huv yog ua raws cov organic acids thiab qee yam tshuaj. Cov no feem ntau tuaj hauv cov koob txhaj tshuaj kom yooj yim.
Rau cov circuits uas siv cov tshuab nto-mount, nws yog qhov zoo dua los siv hom flux no.
Tsis tas li ntawd, lub pob kab sib chaws array yog ib hom ntawm qhov chaw-mounted board uas muaj txiaj ntsig zoo los ntawm cov dej tsis huv. Qhov me me ntawm residue nws tsim tsis yog conductive lossis corrosive. Koj tuaj yeem siv lawv ntawm cov laug cam uas nyuaj rau nkag tau tom qab kev teeb tsa.
Txawm li cas los xij, qee cov neeg siv pom ib qho tseem ceeb ntawm cov residue uas nyuaj rau tshem tawm, sib nrug los ntawm kev ua haujlwm.
Ceev faj thaum siv cov flux no nyob rau hauv analog boards nrog siab impedance. Peb pom zoo kom ua kev nug ntxiv ua ntej siv cov dej tsis huv uas koj tab tom npaj siv.
Hom flux kom tsis txhob nyob rau hauv electronics soldering: Inorganic acid flux
Inorganic acid fluxes yog tsim los ntawm kev sib xyaw ntawm cov kua qaub uas muaj zog xws li (tab sis tsis txwv rau) hydrochloric acid.
Koj yuav tsum tsis txhob muaj inorganic flux ntawm circuits lossis lwm yam khoom siv hluav taws xob, vim tias ob qho tib si flux thiab nws cov residue tuaj yeem corrosive. Lawv txhais tau tias rau cov hlau muaj zog, tsis yog cov khoom siv hluav taws xob.
Mus saib YouTube tus neeg siv SDG Electronics 'video ntawm qhov zoo tshaj plaws flux rau soldering:
Siv hom flux zoo rau txoj haujlwm
Raws li koj tuaj yeem pom, txhua hom flux muaj lawv qhov zoo thiab qhov tsis zoo thaum nws los txog siv flux rau soldering. Tam sim no koj muaj ntau yam xaiv los ntawm thaum ua koj cov hauj lwm soldering ntawm electronics.
Tsis muaj leej twg tuaj yeem tshaj tawm ib qho ntawm cov fluxes yog qhov zoo tshaj plaws nyob rau ntawd, vim cov haujlwm sib txawv yuav xav tau cov flux sib txawv.
Yog tias koj ua haujlwm ntawm cov kab hluav taws xob uas siv thev naus laus zis thev naus laus zis, koj thawj koom ruam zoo tshaj plaws yuav yog qhov tsis huv. Tab sis ceev faj txog cov khoom seem ntxiv.
Thiab rau lwm cov circuits, koj tuaj yeem xaiv txhua yam ntawm cov organic acid flux thiab rosin flux. Ob leeg ua haujlwm zoo heev!
Kuv yog Joost Nusselder, tus tsim ntawm Tools Doctor, cov ntsiab lus lag luam, thiab txiv. Kuv nyiam sim cov cuab yeej tshiab, thiab ua ke nrog kuv pab neeg kuv tau tsim cov ntawv blog tob txij li xyoo 2016 los pab cov neeg nyeem siab ncaj nrog cov cuab yeej & cov lus qhia ua khoom siv.
