1.Preferably saum los ua ke thiab crimping Cheebtsam
Nto sib dhos sib dhos thiab cov khoom sib txig sib xyaw, nrog cov thev naus laus zis zoo.
Nrog rau kev txhim kho ntawm cov tshuab ntim khoom tiv thaiv, feem ntau cov tuaj yeem tuaj yeem yuav hauv cov qeb pob kom haum rau cov hlau tsis ua haujlwm, nrog rau cov khoom sib txuas uas tuaj yeem txais los ntawm-qhov reflow vuam. Yog tias tus qauv tsim muaj peev xwm ua tiav tag nrho saum npoo qhov chaw ua haujlwm, nws yuav zoo heev txhim kho cov ua tau zoo thiab ua haujlwm tau zoo.
Lub crimping Cheebtsam yog mas qhov txuas ntau tus pin txuas. Qhov kev ntim khoom no tseem muaj cov khoom lag luam zoo thiab kev ntseeg siab ntawm kev sib txuas, uas kuj yog cov neeg nyiam.
2.Txoj PCBA sib dhos nto li cov khoom, ntim nplai thiab tus pin sev yog suav tias yog tag nrho
Lub ntim ntim thiab rab koob nruab nrab yog qhov tseem ceeb tshaj plaws uas cuam tshuam cov txheej txheem ntawm tag nrho cov pawg. Nyob rau qhov kev xaiv ntawm kev xaiv cov khoom sib dhos saum npoo av, ib pawg ntawm cov pob khoom nrog cov khoom zoo sib xws ntawm cov khoom siv lossis tsim nyog rau cov ntawv luam tawm ntawm cov ntawv ntawm cov hlau ntawm qee qhov tuab yuav tsum tau xaiv rau PCB nrog qhov loj me thiab qhov sib dhos ntom ntom. Piv txwv li, lub rooj tsav xov tooj ntawm tes, cov pob xaiv tau tsim rau vuam paste luam ntawv nrog 0.1 hli tuab steel mesh.
3.Xhuas cov txheej txheem ntawm txoj kev
Cov txheej txheem luv dua ntawm txoj kev tsim, ntau dua qhov ua tau zoo thiab ntseeg tau ntau yam zoo. Cov txheej txheem kev tsim txoj kev zoo tshaj plaws yog raws li hauv qab no:
Ib leeg sab reflow vuam;
Muab ob npaug rau-zaws reflow vuam;
Ob chav tog reflow vuam + yoj vuam;
Muab ob npaug rau sab reflow vuam + xaiv yoj vuam;
Ob chav tog reflow vuam + phau ntawv vuam.
4.Txhais txheej txheem tivthaiv
Cov Qauv Txheej Txheem Kev Tsim qauv feem ntau yog hais txog cov qauv kev teeb tsa ua ke thiab kev sib txawv. Qhov txheej txheem ntawm cov khoom siv yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm cov txheej txheem welding. Kev tsim qauv hauv kev tshawb fawb thiab tsim nyog tuaj yeem txo cov kev siv cov pob qij txha tsis zoo thiab ua khoom siv, thiab ua kom zoo dua cov qauv tsim ntawm cov ntawv steel.
5. ua tus tsim ntawm ham ncoo, solder kuj thiab steel ntxaij qhov rai
Tus qauv tsim ntawm ham txiav, ham tsis kam thiab steel ntxaij Windows txiav txim qhov tseeb faib ntawm ham muab tshuaj thiab cov txheej txheem ntawm cam kev sib koom ua ke. Nws yog ib qho tseem ceeb heev rau kev koom ua ke ntawm kev tsim ntawm vuam ncoo, vuam tsis kam thiab hlau mesh txhawm rau txhim kho qhov ntsuas tus nqi ntawm vuam.
6.Focus rau kev ntim khoom tshiab
Cov ntawv hu ua pob tshiab, tsis yog tag nrho hais txog cov pob tshiab ntawm kev ua lag luam, tab sis hais txog lawv tus kheej lub tuam txhab tsis muaj kev paub txog kev siv cov pob ntawd. Rau kev ua lag luam tshiab pob, cov txheej txheem pob me me yuav tsum tau ua. Lwm tus tuaj yeem siv, tsis txhais tau tias koj tuaj yeem siv, kev siv tus neeg tsim khoom yuav tsum ua kom nkag siab txog tus txheej txheem cov yam ntxwv thiab teeb meem spectrum, txawj ntsuas kev ntsuas.
7.Focus rau BGA, nti capacitor thiab siv lead ua oscillator
BGA, nti cov khoom siv hluav taws xob thiab cov siv lead ua oscillators yog cov kev ntxhov siab uas muaj kev cuam tshuam, uas yuav tsum zam kom deb li deb tau ntawm PCB khoov thiab deformation hauv vuam, sib dhos, rhiav hloov, tsheb thauj mus los, siv thiab lwm yam txuas.
8. Cov rooj plaub los txhim kho cov cai tsim
Cov kev cai tsim kev tsim khoom yog muab los ntawm kev coj ua ntau lawm. Nws yog qhov tseem ceeb rau kev txhim kho cov khoom lag luam tsim kom txuas ntxiv txuas ntxiv mus kom zoo thiab zoo kawg nkaus tus qauv tsim raws li kev ua haujlwm tsis tu ncua los ntawm cov rooj sib txoos tsis zoo lossis cov tsis ua haujlwm.