PCBA pawg thawj coj saib yuav kho qee zaus, kev kho kuj tseem yog qhov txuas tseem ceeb heev, thaum muaj qhov yuam kev me ntsis, tuaj yeem ua rau lub rooj tsavxwm tsis tuaj yeem siv. Hnub no coj PCBA cov cai kho kom zoo ~ cia saib!
Ua ntej,ci yuav tsum
Tag nrho cov khoom tshiab yuav tsum tau muab tso rau yuav tsum tau ci thiab dehumidified raws li cov av noo rhiab heev theem thiab cia tej yam kev mob ntawm lub Cheebtsam thiab cov yuav tsum tau nyob rau hauv cov kev siv Specification rau Moisture Sensitive Cheebtsam.
Yog tias cov txheej txheem kho yuav tsum tau ua kom sov rau ntau tshaj 110 ° C, lossis muaj lwm yam dej noo-rhiab hauv 5 hli nyob ib ncig ntawm qhov chaw kho, nws yuav tsum tau ci kom tshem tawm cov dej noo raws li cov av noo rhiab heev thiab khaws cia ntawm cov khoom, thiab ua raws li cov kev cai tsim nyog ntawm Txoj Cai rau Kev Siv Cov Khoom Siv Hluav Taws Xob-sensitive.
Rau cov dej noo rhiab uas yuav tsum tau rov qab siv dua tom qab kho, yog tias cov txheej txheem kho xws li cua kub reflux lossis infrared siv los ua kom sov cov pob qij txha los ntawm cov khoom siv, cov txheej txheem tshem tawm cov dej noo yuav tsum tau ua raws li cov av noo rhiab rau qib thiab khaws cia tej yam kev mob ntawm lub Cheebtsam thiab cov uas yuav tsum tau muaj nyob rau hauv Txoj Cai rau Kev Siv Moisture Sensitive Cheebtsam. Rau kev kho cov txheej txheem siv phau ntawv ferrochrome cua sov solder pob qij txha, ua ntej ci tuaj yeem zam tau raws li qhov chaw uas cov txheej txheem cua sov tswj tau.
Thib ob, cia ib puag ncig yuav tsum tau tom qab ci
Yog tias qhov chaw cia khoom ntawm cov khoom ci ntawm cov khoom tsis muaj dej tsis zoo, PCBA, thiab cov khoom siv tshiab tsis tau hloov dua tshiab, koj yuav tsum tau ci lawv dua.
Thib peb, qhov yuav tsum tau ua ntawm PCBA kho lub sijhawm cua sov
Tag nrho cov tso cai rework cua sov ntawm cov khoom yuav tsum tsis pub tshaj 4 zaug; Lub sijhawm kho cua sov ntawm cov khoom tshiab yuav tsum tsis pub tshaj 5 zaug; Tus naj npawb ntawm reheating lub sij hawm tso cai rau cov khoom siv rov qab siv tau tshem tawm ntawm sab saum toj tsis tshaj 3 zaug.
Lub sij hawm xa tuaj: Feb-19-2024
