Cov Lus Qhia Rau Cov Ntaus Hlau Hlau thiab Vuam Qhov tseem ceeb
Vuam qhov tseem ceeb
(1) Tus qauv sib tiv tauj nruab nrab ntawm soldering hlau taub thiab ob welded ntu (raws li qhia hauv daim duab 6)
Contain Office: Lub taub hlau camering yuav tsum tau sib cuag ob lub rooj sib xws (xws li cov yas ua yeeb yam thiab cov ntaub qhwv). Cov soldering hlau feem ntau qaij nyob rau ntawm 45 degree kaum sab xis thiab yuav tsum zam zam tsuas yog ib qho ntawm cov cheebtsam. Thaum lub peev xwm thermal ntawm ob welded qhov chaw yog qhov sib txawv, lub inclination kaum sab xis yuav tsum tau hloov kho kom tsim nyog. Qhov me me rau lub kaum sab xis ntawm cov hlau solding thiab cov vuam nto, thaj chaw loj dua nrog cov hlau thermal loj dua thiab cov zog ntawm cov thermal conductivity. Lub tilt sab xis rau lcd soldering yog nyob ib ncig ntawm 30 degrees, thaum lub tilting rau solding microscones, cov neeg hais lus, thiab lwm yam tuaj yeem nyob ib puag ncig 40 degrees. Ob lub zog welded uas tuaj yeem ncav cuag tib qhov kub tib lub sijhawm yog suav tias yog nyob rau hauv lub xeev muaj cua sov zoo tagnrho.
Hu rau siab: Thaum cov soldering Hlau taub tau los mus rau hauv kev sib cuag nrog lub workpiece, me ntsis siab yuav tsum tau thov. Lub zog ntawm cov cua sov conduction yog ib feem ntawm cov ntawv thov, tab sis cov ntsiab cai yog kom tsis txhob ua rau kev puas tsuaj rau saum npoo ntawm workpiece.
(2) txoj kev ntawm cov khoom siv vuam hlau
Kev xa cov hlau vuam yuav tsum ua kom tiav peb qhov tseem ceeb, lub sijhawm muab khoom siv, qhov chaw nyob, thiab ntau.
Lub sij hawm muab khoom: Hauv qhov kub ntawm lub workpiece ncav tes ntawm lub melting kub ntawm kev cam, cov hlau cov hlau yog xa tam sim.
Qhov chaw xa khoom: nws yuav tsum yog nruab nrab ntawm cov cam thiab lub workpiece, thiab ze li sai tau rau cov phuam qhwv.
Kev muab khoom kom muaj nuj nqis: nws yuav tsum vam khom qhov loj ntawm qhov ua haujlwm thiab cov phuam qhwv. Tom qab npog cov ntaub qhwv nrig nrog kev sib tsoo, cov hlua yuav tsum siab dua ib feem peb ntawm lub cheeb ntawm cov kab.
(3) Lub sijhawm vuam thiab qhov chaw kub
A. Qhov kub yog txiav txim siab los ntawm kev siv tiag tiag, thiab nws yog feem ntau haum rau kev daws qhov kev daws teeb meem rau 4 vib nas this, nrog ntau tshaj plaws ntawm 8 vib nas this. Thaum lub taub hau hlau khi hloov pauv ntshav, qhov kub yog teeb dhau lawm.
B. Feem ntau, rau cov ntxig ntxig rau cov khoom siv hluav taws xob, qhov tseeb kub ntawm soldering hlau tswv yim yog teem rau (350 ~ 370 degrees); Cov khoom siv saum npoo av (SMC) cov khoom siv, teeb cov ntsuas kub tiag tiag ntawm cov taub hlau cam rau (330 ~ 350 degrees)
C. Cov ntaub ntawv tshwj xeeb yuav tsum tau teeb tsa tshwj xeeb ntawm cov hlua hlau kub. FPC, LCD Connectors, thiab lwm yam. Xav tau nyiaj Tin hlau, thiab qhov ntsuas kub feem ntau ntawm 290 degree c thiab 310 degree c.
D. Thaum soldering Cov neeg muaj lub ntsej muag ntau, qhov kub yuav tsum tsis pub tshaj 380 degrees, tab sis lub zog ntawm cov hlau solding tuaj yeem nce ntxiv.
(4) VUAM CEEV CEEV
A. Ua ntej vuam, saib seb puas muaj vuam taw tes (tooj liab nplooj) yog tus, oxidized, thiab lwm yam.
B. Thaum Vuam cov khoom, nws yog ib qho tseem ceeb kom tsom rau cov ntsiab lus vuam kom tsis txhob muaj kev sib tw luv luv los ntawm kev ua haujlwm tsis zoo ntawm Circuit Court
4. Tshawb xyuas tom qab ua haujlwm:
(1) Tom qab siv cov hlau soldering, cov seem ntawm cov taub yuav tsum tau so huv si nrog daim txhuam cev.
(2) Tom qab ua haujlwm txhua hnub, nws yog ib qho tsim nyog los ntxuav cov khau khiab, thiab tom qab ntawd cov cam hlau nrog cov hlau cam.
(3) Muab cov hlau ntxuav cov hlau ntxuav hauv lub ces kaum sab sauv ntawm kev ua haujlwm.
