Cov ntsiab lus tseem ceeb ntawm cov khoom siv hluav taws xob soldering hlau
1. Txoj kev sib cuag ntawm lub taub hau soldering thiab ob qhov chaw yuav tsum tau welded
(1) Hu rau txoj haujlwm
Lub taub hau hlau yuav tsum nyob rau hauv kev sib cuag nrog ob qhov chaw welded kom txuas rau ib leeg (xws li cov ko taw thiab cov ntaub qhwv) tib lub sijhawm. Cov hlau soldering feem ntau inclined ntawm 45 degrees kom tsis txhob muaj kev sib cuag nrog tsuas yog ib qho ntawm cov welded qhov chaw.
Thaum lub tshav kub muaj peev xwm ntawm ob qhov chaw welded txawv heev, lub inclination lub kaum sab xis ntawm cov hlau soldering yuav tsum tau kho kom haum. Qhov me me ntawm qhov inclination lub kaum sab xis ntawm cov hlau soldering thiab vuam nto, qhov loj ntawm qhov chaw sib cuag ntawm qhov chaw welded nrog lub peev xwm loj dua thiab cov hlau soldering yuav yog, thiab cov hluav taws xob muaj peev xwm yuav raug txhim kho.
Piv txwv li, lub inclination lub kaum sab xis ntawm LCD rub vuam yog hais txog 30 degrees, thiab lub inclination lub kaum sab xis ntawm vuam microphones, motors, hais lus, thiab lwm yam yuav yog hais txog 40 degrees. Ob qhov chaw yuav tsum tau welded 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.
(2) Tiv tauj siab
Thaum lub taub hau hlau yog nyob rau hauv kev sib cuag nrog lub workpiece yuav tsum tau welded, ib tug me ntsis siab yuav tsum tau thov. Lub zog ntawm cov cua kub conduction yog proportional rau lub siab thov, tab sis nws yuav tsum tau raws li lub hauv paus ntsiab lus ntawm tsis ua kev puas tsuaj rau saum npoo ntawm lub workpiece yuav tsum tau welded.
2. Txoj kev muab khoom ntawm vuam hlau
Kev xa khoom ntawm vuam hlau yuav tsum tau ua peb yam tseem ceeb, xws li lub sijhawm, qhov chaw thiab qhov ntau.
(1) Lub sij hawm muab khoom: Raws li txoj cai, cov hlau xaim xaim xaim tam sim ntawd thaum qhov kub ntawm qhov welded mus txog qhov kub ntawm cov khoom siv.
(2) Txoj hauj lwm muab khoom: Nws yuav tsum nyob nruab nrab ntawm cov hlau thiab cov welded thiab ze rau ntawm lub ncoo li sai tau.
(3) Qhov yuav tsum tau muab: Nws nyob ntawm qhov loj ntawm qhov vuam thiab lub ncoo. Tom qab lub solder npog lub ncoo, lub solder tuaj yeem siab tshaj 1/3 ntawm txoj kab uas hla ntawm lub ncoo.
3. vuam lub sij hawm thiab qhov kub thiab txias
(1) Qhov ntsuas kub yog txiav txim siab los ntawm kev siv tiag tiag. Nws yog qhov tsim nyog rau solder point rau 4 vib nas this, thiab qhov siab tshaj plaws yog tsis pub tshaj 8 vib nas this. Feem ntau saib qhov ntxeev ntawm cov hlau soldering. Thaum nws hloov ntshav, qhov kub thiab txias yog siab dhau.
(2) Rau cov khoom siv hluav taws xob hauv-kab, teeb qhov kub thiab txias ntawm lub taub hau rau (350 ~ 370 degrees); rau cov ntaub ntawv saum npoo av (SMC) cov ntaub ntawv, teeb tsa qhov kub thiab txias ntawm lub taub hau rau (330 ~ 350 degrees)
(3) Rau cov ntaub ntawv tshwj xeeb, qhov kub ntawm cov hlau soldering yuav tsum tau teem tshwj xeeb. FPC, LCD connectors, thiab lwm yam yuav tsum siv nyiaj-muaj tin hlau, thiab qhov kub thiab txias yog feem ntau ntawm 290 degrees thiab 310 degrees.
(4) Thaum soldering loj tiv thaiv taw, qhov kub yuav tsum tsis txhob siab tshaj 380 degrees, tab sis lub zog ntawm cov hlau soldering tuaj yeem nce ntxiv.
4. Kev ceev faj rau vuam
(1) Ua ntej vuam, saib seb txhua qhov sib koom ua ke (tooj liab ntawm daim tawv nqaij) yog du thiab oxidized.
(2) Thaum vuam cov khoom, saib lub vuam taw tes kom tsis txhob luv luv Circuit Court tshwm sim los ntawm kev vuam tsis zoo ntawm txoj kab.
