Taw qhia rau cov kauj ruam yooj yim ntawm kev ua haujlwm vuam
Kauj Ruam 1: Npaj rau vuam. Tuav lub vuam hlau nyob rau hauv koj sab tes laug thiab cov hlau soldering nyob rau hauv koj sab tes xis kom nkag mus rau hauv lub vuam npaj lub xeev. Lub taub hau hlau yuav tsum tau ua kom huv si, tsis muaj oxides xws li vuam slag, thiab coated nrog ib txheej ntawm solder rau ntawm qhov chaw.
Kauj Ruam 2: Cua sov lub vuam. Muab lub taub hau ntawm cov hlau nplaum tiv thaiv kev sib txuas ntawm ob lub vuam thiab ua kom sov tag nrho cov vuam rau li 1 mus rau 2 vib nas this. Thaum soldering Cheebtsam ntawm cov ntawv luam Circuit Court boards, yuav tsum tau them nyiaj mloog mus rau lub soldering hlau taub tiv tauj ob yam khoom yuav soldered tib lub sij hawm. Cov hlau thiab cov terminals, cov khoom siv lead ua thiab cov ntaub qhwv yuav tsum tau muab cua sov sib npaug tib lub sijhawm.
Kauj Ruam 3: Thaum lub vuam nto ntawm cov khoom siv rau hauv cov hlau soldering yog rhuab mus rau ib qho kub, cov hlau xaim hu rau cov khoom siv los ntawm sab nraud ntawm cov hlau soldering. Lus Cim: Tsis txhob pub cov hlau nplaum rau ntawm lub taub hau hlau!
Kauj Ruam 4: Tshem tawm cov vuam hlau. Thaum lub vuam hlau melts ib tug npaum li cas, tam sim ntawd tshem tawm cov vuam hlau nyob rau hauv lub 45 degree kev taw qhia mus rau sab laug.
Kauj ruam 5: Tom qab tshem cov hlau soldering thiab cia lub solder tsau rau hauv lub ncoo thiab vuam ib feem ntawm lub vuam, tshem tawm cov hlau soldering nyob rau hauv ib tug 45 degree kev taw qhia mus rau sab xis saum toj kawg nkaus vuam. Txij thaum pib ntawm theem peb mus rau qhov kawg ntawm theem thib tsib, lub sijhawm yog li 1 mus rau 2 vib nas this.
Kev ceev faj rau kev ua haujlwm vuam
1. Khaws lub taub hau kom huv si thiab khaws cia. Thaum welding, lub taub hau hlau yog nyob rau ntawm qhov kub thiab txias rau lub sijhawm ntev thiab yooj yim oxidized thiab stained nrog ib txheej ntawm dub impurities. Yog li ntawd, nco ntsoov so lub taub hau nrog cov ntaub ntub dej txhua lub sijhawm. Thaum nws tsis siv sijhawm ntev, tin yuav tsum tau muab ntxiv rau hauv lub taub hau ntawm lub taub hau kom tiv thaiv lub ntsis ntawm oxidizing thiab ua rau nws tsis yooj yim rau lo tin.
2. Thaum ua kom cov cheeb tsam sib cuag kom ceev cov cua sov hloov thiab cua sov, txhua qhov chaw ntawm cov vuam vuam uas yuav tsum tau ua kom sov infiltration yuav tsum tau rhuab kom sib npaug, tsis yog tsuas yog cua sov ib feem ntawm cov vuam, cia ib leeg siv cov hlau soldering kom muaj zog ntawm cov hlau. vuam.
3. Kev khiav tawm ntawm cov hlau soldering yuav tsum tau khiav tawm raws sij hawm ntawm cov hlau soldering, thiab lub kaum sab xis thiab kev taw qhia thaum khiav tawm yog cuam tshuam nrog kev tsim cov pob qij txha.
4. Tsis txhob txav lub solder kom txog thaum lub solder solidifies. Tsis txhob txav los yog vibrate lub vuam, txwv tsis pub nws yuav yooj yim ua rau cov qauv sib txuas ua kom xoob lossis tsis muaj zog.
5. Tus nqi ntawm cov solder yuav tsum yog nruab nrab, thiab cov tin hlau yuav tsum tau ntim nrog flux ua los ntawm rosin thiab activator.
6. Tus nqi ntawm flux yuav tsum yog nruab nrab. Kev siv rosin flux ntau dhau yuav ua rau muaj kev cuam tshuam ntau dhau tom qab vuam, ua kom lub sijhawm cua sov thiab txo kev ua haujlwm. Thaum lub sij hawm cua sov tsis txaus, qhov tsis xws luag ntawm "slag inclusion" yog yooj yim tsim.
7. Tsis txhob siv lub taub hau soldering los ua ib lub cuab yeej los thauj cov solder (soldering nrog tin). Qee tus neeg tau siv los siv lub taub hau hlau los ua cov cuab yeej thauj khoom rau cov khoom siv, uas yuav ua rau oxidation ntawm cov hlau.
Vim tias qhov kub ntawm cov hlau nplaum feem ntau yog siab tshaj 300 degree, qhov flux hauv cov hlau nplaum yog qhov ua rau decomposition thiab tsis ua hauj lwm ntawm qhov kub thiab txias, thiab cov solder kuj tseem nyob rau hauv ib qho overheated, tsis zoo lub xeev.
