Vuam qhov tseem ceeb ntawm hluav taws xob soldering hlau
(1) Kev sib cuag hom ntawm lub taub hau hlau thiab ob qhov chaw welded
Txoj hauj lwm sib cuag: Lub taub hau hlau yuav tsum sib txuas rau ob qhov chaw sib txuas kom sib txuas (xws li vuam taw thiab cov ntaub qhwv). Cov hlau soldering feem ntau inclined ntawm 45 degrees, thiab kev sib cuag nrog tsuas yog ib qho ntawm cov welded qhov chaw yuav tsum tau zam. Thaum muaj qhov sib txawv ntawm qhov muaj peev xwm kub ntawm ob qhov chaw welded, lub kaum sab xis ntawm cov hlau yuav tsum tau kho kom haum. Qhov me me qhov qaij lub kaum sab xis ntawm cov hlau soldering thiab vuam nto, qhov loj ntawm qhov chaw sib txuas ntawm qhov welded nrog lub peev xwm loj dua thiab cov hlau soldering, thiab qhov muaj zog ntawm cov cua sov ua kom muaj peev xwm. Thaum vuam LCD, lub kaum sab xis yog nyob ib ncig ntawm 30 degrees, thiab thaum vuam microphones, motors, hais lus, thiab lwm yam, lub qaij lub kaum sab xis yuav nyob ib ncig ntawm 40 degrees. Lub peev xwm ntawm ob lub welded Cheebtsam kom ncav cuag qhov kub thiab txias tib lub sijhawm yog suav tias yog lub xeev zoo tagnrho rau cua sov.
Kev sib cuag siab: Thaum lub taub hau hlau soldering los rau hauv kev sib cuag nrog qhov chaw welded, me ntsis siab yuav tsum tau thov. Lub zog ntawm tshav kub conduction yog proportional rau tus nqi ntawm lub siab thov, tab sis lub hauv paus ntsiab lus yog kom tsis txhob ua kev puas tsuaj rau saum npoo ntawm welded ib feem.
(2) Muab txoj kev vuam hlau
Cov khoom siv vuam hlau yuav tsum tuav peb lub ntsiab lus tseem ceeb, uas yog lub sij hawm muab khoom, txoj hauj lwm, thiab kom muaj nuj nqis.
Lub sij hawm muab khoom: Nyob rau hauv txoj cai, lub solder hlau yog tam sim ntawd xa mus rau thaum lub kub ntawm lub welded ib feem mus txog lub melting kub ntawm lub solder.
Qhov chaw muab khoom: Nws yuav tsum nyob nruab nrab ntawm cov hlau soldering thiab cov welded ib feem thiab ze li sai tau rau cov ntaub qhwv.
Kev muab khoom ntau: Nws yuav tsum nyob ntawm qhov loj ntawm cov khoom siv thiab cov ntaub qhwv. Tom qab npog cov ntaub qhwv nrog cov hlua, cov hlua yuav tsum siab tshaj 1/3 ntawm lub taub hau.
(3) Lub sijhawm vuam thiab qhov kub thiab txias
A. Qhov kub thiab txias yog txiav txim siab los ntawm kev siv tiag tiag, thiab nws yog qhov tsim nyog tshaj plaws rau vuam qhov taw tes rau 4 vib nas this, nrog rau qhov siab tshaj plaws ntawm 8 vib nas this. Feem ntau, saib xyuas lub taub hau hlau, thiab thaum nws hloov ntshav, qhov kub thiab txias tau teeb tsa siab dhau lawm.
B. Feem ntau, ntxig cov khoom siv hluav taws xob ncaj qha thiab teeb tsa qhov ntsuas kub ntawm lub taub hau rau (350 ~ 370 degrees); Nto Mount Material (SMC) cov khoom siv, teeb tsa qhov kub thiab txias ntawm lub taub hau rau (330-350 degrees)
C. Cov ntaub ntawv tshwj xeeb yuav tsum tau teeb tsa tshwj xeeb ntawm cov hlau soldering kub. FPC, LCD connectors, thiab lwm yam yuav tsum tau siv nyiaj uas muaj tin hlau, nrog rau qhov kub thiab txias feem ntau ntawm 290 degrees thiab 310 degrees.
D. Welding loj tiv thaiv taw yuav tsum tsis txhob siab tshaj 380 degrees Celsius, tab sis nws muaj peev xwm ua kom lub zog ntawm cov hlau soldering.
(4) Vuam ceev faj
A. Ua ntej vuam, txhua qhov vuam taw tes (cov ntawv tooj liab) yuav tsum tau saib xyuas kom du, oxidation, thiab lwm yam.
B. Thaum vuam cov khoom, nws yog ib qho tseem ceeb uas yuav tsum tau saib xyuas cov ntsiab lus vuam kom raug kom tsis txhob muaj luv luv Circuit Court los ntawm kev tsis zoo ntawm cov khoom siv hluav taws xob.
4. Kev tshuaj xyuas tom qab ua haujlwm:
(1) Tom qab siv cov hlau nplaum, cov tin seem ntawm lub taub hau hlau yuav tsum tau muab ntxuav kom huv ntawm daim txhuam cev.
(2) Tom qab ua haujlwm txhua hnub, nws yuav tsum tau tshem cov hlaws hlaws, slag, plua plav, thiab lwm yam khoom los ntawm cov khoom siv hlau.
Ntxuav thiab tso cov hlau soldering rau ntawm cov hlau tuav.
(3) Muab cov hlau uas huv huv rau ntawm lub ces kaum sab xis ntawm qhov chaw ua haujlwm.
