Flux yog ib hom tshuaj siv los txo qhov nro ntawm cov hlau los pab hauv kev sib txuas. Nws yog siv rau ob lub hauv paus hlau thiab cov solder kom tshem tawm cov oxides thiab cov kab mob los ntawm qhov chaw los tsim ib qho chaw ntub dej.
Hauv tsab xov xwm no, kuv yuav piav qhia txog dab tsi flux yog dab tsi, nws ua haujlwm li cas, thiab vim li cas nws tseem ceeb heev rau kev ua tiav zoo. Ntxiv rau, kuv mam li qhia qee yam sib txawv muaj.
Hauv kab ntawv no peb yuav npog:
Flux: Lub zog tsis meej uas ua rau Soldering tau
Flux yog ib yam khoom uas siv rau cov hlau nto ua ntej soldering los pab cov solder txaus thiab daim ntawv cog lus kom zoo. Nws yog ib qho tseem ceeb ntawm cov txheej txheem soldering, vim tias nws yuav pab tshem tawm cov txheej txheem oxide uas yuav muaj nyob rau ntawm cov hlau nto, tso cai rau cov hlau nplaum lo rau cov hlau.
Flux Ua Haujlwm Li Cas?
Flux ua haujlwm los ntawm kev txo qhov nro ntawm lub solder, cia nws ntws yooj yim dua thiab sib npaug ntawm cov hlau nto. Nws kuj tseem pab tiv thaiv oxidation los ntawm kev tsim ib qho kev thaiv ntawm cov hlau thiab huab cua.
Hom Flux
Muaj ntau ntau hom flux muaj, txhua tus muaj nws tus kheej cov khoom thiab kev siv. Qee yam uas feem ntau muaj xws li:
- Rosin flux: Qhov no yog hom flux tshaj plaws thiab yog tsim los ntawm cov ntoo ntawm cov ntoo thuv. Nws yog qhov zoo tagnrho-lub hom phiaj flux uas ua haujlwm zoo rau feem ntau cov ntawv thov.
- Dej-soluble flux: Hom flux no yooj yim los ntxuav nrog dej thiab feem ntau siv hauv kev tsim hluav taws xob.
- Tsis muaj dej huv: Hom flux no tawm tom qab me ntsis residue thiab yog qhov zoo tagnrho rau cov ntawv thov uas tu tsis yooj yim lossis ua tsis tau.
Vim Li Cas Koj Thiaj Xav Tau Flux?
Flux yog qhov tseem ceeb rau kev ua tiav zoo vim tias nws yuav pab kom muaj kev ruaj khov, txhim khu kev qha ntawm cov hlau nto tau koom nrog. Yog tsis muaj flux, lub solder yuav tsis ntws zoo, ua rau muaj kev sib koom ua ke tsis muaj zog lossis tsis ntseeg siab.
Flux Applied li cas?
Flux tuaj yeem siv rau ntau txoj hauv kev, nyob ntawm seb hom flux thiab daim ntawv thov. Qee txoj hauv kev muaj xws li:
- Kev txhuam hniav: Flux tuaj yeem siv tau los ntawm kev txhuam me me los yog tus neeg thov.
- Txau: Qee hom flux tuaj yeem txau rau saum npoo hlau.
- Dipping: Cov hlau tuaj yeem dipped rau hauv ib lub thawv ntawm flux.
Feem ntau yuam kev thaum siv Flux
Thaum flux yog ib qho tseem ceeb ntawm cov txheej txheem soldering, nws yooj yim ua yuam kev thaum siv nws. Qee qhov yuam kev ntau suav nrog:
- Siv cov flux ntau dhau: Qhov no tuaj yeem ua rau muaj kev sib tsoo, nyuaj rau kev ntxuav.
- Siv hom flux tsis ncaj ncees lawm: Siv hom flux tsis raug tuaj yeem ua rau muaj kev sib koom ua ke tsis muaj zog lossis tsis ntseeg siab.
- Tsis ntxuav cov dej khib nyiab: Flux residue tuaj yeem ua rau corrosive thiab tuaj yeem ua rau kev sib koom ua ke thaum lub sij hawm yog tias tsis ntxuav kom zoo.
Nkag siab txog Terminology ntawm Flux
Flux yog ib lo lus uas siv ntau yam, suav nrog electromagnetism, thauj, thiab suav. Lo lus "flux" los ntawm Latin lo lus "fluxus," uas txhais tau hais tias "kom ntws." Hauv physics, flux yog ib thaj chaw vector uas piav qhia txog kev hloov pauv ntawm qhov ntau los ntawm qhov chaw. Lub tswv yim ntawm flux yog qhov tseem ceeb rau kev tsom xam ntawm ntau lub cev lub cev, thiab nws tau pab txhawb txoj kev loj hlob ntawm kev xav hauv physics.
Qhov txawv ntawm qhov tseem ceeb hauv kev txhais ntawm Flux
Lub ntsiab lus ntawm flux tuaj yeem sib txawv nyob ntawm qhov chaw uas nws siv. Nov yog qee qhov sib txawv tseem ceeb hauv kev txhais ntawm flux:
- Hauv electromagnetism, flux yog hais txog qhov sib nqus ntawm qhov sib nqus ntawm qhov chaw. Qhov no yog txhais los ntawm Maxwell's fundamental theorem of electromagnetism.
- Hauv kev thauj mus los, flux piav qhia txog kev hloov pauv ntawm qhov ntau, xws li huab hwm coj lossis lub zog, los ntawm qhov chaw. Qhov no yog txhais los ntawm qhov sib thooj density gradient.
- Hauv kev suav suav, flux yog raws li lub tswv yim ntawm cov txiaj ntsig thiab hais txog qhov hloov pauv ntawm qhov ntau los ntawm qhov chaw. Qhov no yog txhais los ntawm gradient ntawm lub luag haujlwm.
Kev Pabcuam Seminal ntawm James Clerk Maxwell
James Clerk Maxwell yog ib tug Scottish physicist uas tau txais kev txhawb nqa rau lub teb ntawm electromagnetism. Nyob rau hauv nws treatise "Ib tug Dynamical Theory ntawm lub Electromagnetic Field," nws txhais lub tswvyim ntawm flux thiab muab tau cov lus qhia rau ib qho tseem ceeb ntawm lub magnetic teb nyob rau hauv ib tug nto. Nws txoj hauj lwm tau tso lub hauv paus rau kev txhim kho cov kev xav niaj hnub electromagnetic.
Cov Lus Txhais Kev Tsis Txaus Siab thiab Kev Hloov Pauv ntawm Cov Cai
Lub ntsiab lus ntawm flux tuaj yeem tsis sib haum thiab sib hloov tau nyob ntawm thaj chaw uas nws siv. Piv txwv li, hauv cov ntsiab lus uas tsis yog siv tshuab, cov ntsiab lus "flux" thiab "flow" feem ntau siv sib hloov los piav qhia txog cov xwm txheej. Txawm li cas los xij, hauv cov ntsiab lus technical, cov ntsiab lus muaj cov ntsiab lus sib txawv thiab tsis tuaj yeem siv sib hloov.
Kev sib xyaw ntawm Flux hauv Calculus
Hauv calculus, flux yog sib xyaw ua ke ntawm ib qho chaw los muab cov lus qhia rau kev hloov pauv ntawm qhov ntau. Qhov no yog ua los ntawm kev siv lub hauv paus theorem ntawm kev suav lej, uas hais tias qhov tseem ceeb ntawm kev ua haujlwm yog sib npaug ntawm qhov sib txawv ntawm qhov tseem ceeb ntawm txoj haujlwm ntawm qhov kawg ntawm kev sib koom ua ke. Kev sib xyaw ua ke ntawm flux yog ib lub tswv yim tseem ceeb hauv kev suav lej thiab siv ntau yam kev siv, suav nrog cov dej dynamics thiab cov cua sov hloov.
Flux: Cov khoom xyaw zais cia rau kev zoo tag nrho
Flux yog ib tug neeg sawv cev tshuaj siv nyob rau hauv soldering los txhawb lub wetting ntawm hlau nto los ntawm molten solder. Nws pab tiv thaiv kev tsim cov oxides rau ntawm qhov chaw ntawm cov hlau, uas tuaj yeem cuam tshuam qhov ntws ntawm cov hlau thiab ua rau tsis zoo adhesion ntawm solder thiab hlau. Flux kuj tseem tiv thaiv cov hlau nplaum los ntawm huab cua, uas tuaj yeem ua rau cov oxide zaj duab xis, hloov qhov chaw thiab ua rau nws nyuaj rau solder.
Lub hom phiaj ntawm Flux hauv Soldering
Lub hom phiaj ntawm flux nyob rau hauv soldering yog pab nyob rau hauv tsim ntawm ib tug uniformly wetted nto ntawm lub solder thiab cov hlau Cheebtsam koom. Flux pab ntxuav qhov saum npoo ntawm cov hlau, tshem tawm cov oxides lossis lwm yam kab mob uas tuaj yeem tiv thaiv cov hlau los ntawm kev ua kom zoo. Nws kuj tseem txhawb txoj kev khiav ntawm cov solder los ntawm kev txo qhov nro ntawm cov molten solder, cia nws kis tau yooj yim dua thiab sib npaug ntawm cov hlau.
Xaiv txoj cai hom Flux rau koj cov txheej txheem Soldering
Kev siv hom flux yog qhov tseem ceeb los xyuas kom meej qhov ua tau zoo tshaj plaws ntawm koj cov khoom siv hluav taws xob. Nov yog qee qhov laj thawj vim li cas:
- Kev siv cov flux tsis ncaj ncees lawm tuaj yeem ua rau kev ua haujlwm tsis zoo thiab ua rau koj cov khoom puas tsuaj.
- Kev siv hom flux zoo tuaj yeem ua rau lub neej ntev ntawm koj cov khoom thiab tiv thaiv qhov kev xav tau ntawm kev kho tus nqi.
- Kev siv hom flux zoo tuaj yeem ua kom ntseeg tau tias koj cov txheej txheem soldering tiav kom raug thiab ua tau zoo.
Ntxuav Flux Residue los ntawm Electronics
Thaum koj ua tiav koj cov khoom siv hluav taws xob, koj tuaj yeem pom tias muaj qee qhov ntau dhau ntawm lub rooj tsavxwm. Tso tawm qhov seem ntawm lub rooj tsavxwm tuaj yeem ua rau muaj teeb meem hluav taws xob thiab txawm tias luv luv. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau ntxuav cov flux residue los ntawm koj lub PCB board los txhim kho tag nrho cov khoom zoo ntawm koj cov khoom.
xaus
Yog li, nyob ntawd koj muaj nws - cov lus qhia luv luv rau flux thiab yog vim li cas nws tseem ceeb heev thaum koj nyob nraum soldering. Flux pab tshem tawm cov txheej txheem oxide ntawm cov hlau thiab ua rau cov khoom siv tau yooj yim dua. Nws yog ib qho tseem ceeb ntawm cov txheej txheem soldering thiab pab koj ua tiav txoj haujlwm. Yog li, tsis txhob hnov qab siv nws rau lwm zaus koj ua haujlwm nrog hlau.
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.
