Cov lus qhia rau soldering hlau, soldering hlau thiab txhua yam koj xav tau rau soldering
Kev kuaj xyuas ua ntej
(1) 3-5 feeb ua ntej welding cov hlau txuas rau hauv lub qhov (socket), xyuas seb cov hlau puas kub, xws li pom tsis kub, ua ntej xyuas seb lub qhov (socket) puas yog ntsaws rau hauv, xws li ntsaws, yog tias nws yog. tsis kub, yuav tsum tam sim ntawd qhia rau tus thawj coj, tsis tuaj yeem yog vim arbitrarily dismantle cov hlau soldering, tsis hais txog kev sib cuag ncaj qha nrog lub taub hau hlau nrog tes.
(2) tau oxidized tsis sib npaug los yog nrog hooks ntawm lub taub hau hlau yuav tsum tau hloov kho:
1, tuaj yeem ua kom muaj cua sov zoo;
2, los xyuas kom meej qhov zoo ntawm cov khoom soldered. Yog hais tias hloov nrog ib tug tshiab soldering hlau taub, cua sov yuav tsum tau khaws cia tom qab cov xim yuav tsum tau muab tshem tawm, tam sim ntawd ntxiv tin txij nkawm. Kev ntxuav cov hlau nplaum yuav tsum tau ua ua ntej kev ua haujlwm, yog tias cov hlau tsis siv ntau tshaj 5 feeb, lub hwj chim yuav tsum tau muab tua. Daim txhuam cev yuav tsum tau ntxuav kom huv si cov ntaub txhuam hniav uas muaj hlau, los yog cov ntaub txhuam hniav uas muaj leej faj yuav ua rau lub taub hau hlau ua puas tsuaj.
(3) xyuas seb cov tin sponge dej thiab huv, yog tias tsis muaj dej, thov ntxiv cov dej kom raug (qhov zoo yog nias lub sponge mus rau ib nrab-thickness thaum muaj dej seepage, kev ua haujlwm tshwj xeeb yog: av noo. qhov yuav tsum tau ua ntawm daim txhuam cev yog tag nrho cov ntub dej, tuav hauv xib teg ntawm koj txhais tes, tsib ntiv tes ib txwm ua ke tuaj yeem ua tau), daim txhuam cev yuav tsum tau ntxuav kom huv daim txhuam cev tsis huv sponges muaj hlau hais, los yog daim txhuam cev uas muaj leej faj yuav ua rau lub taub hau ntawm lub soldering. hlau.
(4) seb tib neeg lub cev thiab cov hlau nplaum puas muaj kev ntseeg siab, txawm tias tib neeg lub cev hnav lub nplhaib hluav taws xob zoo li qub.
2, vuam cov kauj ruam
Soldering hlau vuam cov txheej txheem kev khiav hauj lwm tshwj xeeb tuaj yeem muab faib ua tsib kauj ruam, hu ua tsib-kauj ruam engineering txoj kev, kom tau txais kev vuam zoo yuav tsum nruj me ntsis raws li cov hauv qab no tsib lub lag luam.
Raws li cov kauj ruam saum toj no rau vuam yog ib qho ntawm cov yuam sij kom tau txais cov pob qij txha zoo. Nyob rau hauv qhov tseeb ntau lawm, feem ntau yuav tshwm sim ib tug ua txhaum ntawm kev khiav hauj lwm cov kauj ruam ntawm kev xyaum yog lub taub hau ntawm soldering hlau tsis yog thawj kev sib cuag nrog cov soldered qhov chaw, tab sis thawj kev sib cuag nrog solder hlau, melted solder tee nyob rau hauv lub kawg. preheated qhov chaw ntawm soldered qhov chaw, yog li nws yog ib qho yooj yim los tsim solder pob qij txha soldering, yog li ntawd lub taub hau soldering hlau yuav tsum tau nyob rau hauv kev sib cuag nrog cov soldered qhov chaw, soldered qhov chaw preheating yog los tiv thaiv cov zus tau tej cov soldering yog ib qho tseem ceeb ntawm cov ntsiab lus tseem ceeb. .
3, Soldering yam tseem ceeb
(1) soldering hlau taub thiab ob qhov chaw soldered ntawm hom kev sib cuag (Daim duab 6)
Kev sib cuag txoj hauj lwm: lub taub hau hlau yuav tsum tau hu rau tib lub sijhawm kom txuas rau ib leeg 2 qhov chaw (xws li cov ko taw thiab cov ntaub qhwv), cov hlau feem ntau tig ntawm 45 degrees, yuav tsum zam nrog ib qho ntawm cov soldered. qhov chaw hauv kev sib cuag. Thaum ob qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, yuav tsum tau kho kom zoo soldering hlau qaij lub kaum sab xis, qhov me me ntawm cov hlau soldering thiab vuam nto qaij lub kaum sab xis, kom lub peev xwm kub ntawm qhov loj dua thiab cov hlau soldering kom muaj kev sib cuag, cua sov. conduction muaj peev xwm ntxiv dag zog. Xws li LCD rub vuam qaij lub kaum sab xis ntawm 30 degrees, vuam microphone, lub cev muaj zog, lub taub hau qaij lub kaum sab xis tuaj yeem yog li 40 degrees. Ob qhov chaw soldered tuaj yeem ncav cuag qhov kub thiab txias tib lub sijhawm, uas yog suav tias yog lub xeev zoo tshaj plaws ntawm cov cua sov.
Kev sib cuag siab: lub taub hau ntawm cov hlau thiab cov khoom siv sib txuas yuav tsum yog me ntsis siab, cov cua sov conduction yog proportional rau qhov loj ntawm lub siab thov, tab sis mus rau qhov chaw ntawm soldered ib feem tsis ua kev puas tsuaj rau lub hauv paus ntsiab lus.
(2) Cov txheej txheem muab khoom ntawm vuam hlau
Cov khoom siv vuam hlau yuav tsum tuav peb qhov tseem ceeb, ob qho tib si lub sijhawm, qhov chaw thiab qhov ntau.
Lub sij hawm muab khoom: nyob rau hauv txoj cai, cov khoom siv soldered kom ncav cuag lub melting kub ntawm lub solder yog tam sim ntawd xa mus rau lub solder hlau.
Txoj hauj lwm muab khoom: yuav tsum nyob rau hauv cov hlau soldering thiab soldered qhov nruab nrab ntawm thiab ze li sai tau rau lub ncoo.
Kev muab khoom ntau: yuav tsum saib qhov loj ntawm cov khoom siv thiab cov ntaub qhwv, cov ntaub qhwv lub ncoo tom qab lub solder siab tshaj 1/3 ntawm txoj kab uas hla ntawm lub ncoo tuaj yeem ua tau.
(3) Soldering lub sij hawm thiab qhov kub thiab txias
A, qhov kub thiab txias los ntawm kev siv tiag tiag ntawm kev txiav txim siab rau vuam tin taw tes 4 vib nas this yog qhov tsim nyog tshaj plaws, qhov siab tshaj plaws tsis pub tshaj 8 vib nas this, feem ntau saib xyuas lub taub hau hlau, thaum nws yog xim liab, qhov kub thiab txias tau teeb tsa siab dhau lawm.
B, cov khoom siv hluav taws xob ncaj qha ncaj qha, qhov tseeb ntawm qhov ntsuas kub ntawm lub taub hau yog teem rau (350 ~ 370 degrees); Cov ntaub ntawv saum npoo av (SMC) cov ntaub ntawv, qhov tseeb qhov kub ntawm cov hlau taub hau yog teem rau (330 ~ 350 degrees)
C, cov ntaub ntawv tshwj xeeb, qhov xav tau tshwj xeeb ntawm qhov kub thiab txias, FPC, LCD connectors, thiab lwm yam los siv cov hlau uas muaj nyiaj, qhov kub yog feem ntau ntawm 290 degrees txog 310 degrees.
D, welding loj Cheebtsam taw, qhov kub yuav tsum tsis txhob ntau tshaj 380 degrees, tab sis koj muaj peev xwm ua kom lub zog ntawm cov hlau soldering.
