Tej yam kev mob rau cia cov mount deg Cheebtsam:
Kev nyab xeeb kub: cov lus nug qhov kub< 40="">
Kev tsim khoom kub ntau yog tsawg dua 30 ℃.
Ib puag ncig huab cua:<>
Qhov chaw ib puag ncig: Yuav tsum tsis muaj cov pa phem xws li leej faj, chlorine, kua qaub, thiab lwm yam uas cuam tshuam rau kev ua haujlwm vuam nyob hauv cov lus nug thiab kev siv ib puag ncig.
Kev tiv thaiv kev tiv thaiv zoo li qub: kom ua tau raws li anti-static yuav tsum tau ntawm SMT Cheebtsam.
Lub sijhawm ntim khoom: suav txij li hnub khoom ntawm cov khoom lag luam, lub sijhawm ua khoom muag yuav tsum tsis pub tshaj 2 xyoos; cov lus nug lub sijhawm tom qab kev yuav khoom los ntawm tus neeg siv ntawm tag nrho cov tshuab Hoobkas feem ntau tsis tshaj 1 xyoos; yog hais tias lub ntuj ib puag ncig yog noo, qhov kev yuav khoom SMT cov khoom siv yuav tsum siv tsis pub dhau 3 lub hlis tom qab lawv tau coj mus muag, thiab tsim nyog ntsuas cov dej noo yuav tsum tau nyob hauv qhov chaw khaws cia thiab ntim khoom tiv thaiv.
SMD khoom siv nrog cov dej noo-pov thawj uas yuav tsum tau. Nws yuav tsum siv nyob rau hauv 72 teev tom qab qhib, thiab qhov ntev tshaj plaws yuav tsum tsis pub tshaj ib lub lim tiam. Yog tias nws tuaj yeem' t siv, nws yuav tsum khaws cia rau hauv lub thawv RH20% kom qhuav, thiab lub plua plav SMD cov khoom siv yuav tsum tau muab ziab thiab dehumidified raws li cov cai.
Rau SMD (SOP, Sj, lCC, QFP, thiab lwm yam) ntim rau hauv cov yas, cov raj ntim tsis tiv taus qhov kub thiab tsis tuaj yeem ncaj qha rau hauv qhov cub rau ci. Nws yuav tsum muab tso rau hauv lub raj hlau lossis hlau tais rau ci.
QFP' s ntim cov yas ntim khoom muaj ob hom: cov hluav taws kub tsis zoo thiab kub tiv taus. Qhov kub tiv taus (nrog Tmax=135 ° C, 150 ° C lossis max180 ° C, thiab lwm yam) tuaj yeem muab ncaj qha rau hauv qhov cub rau ci; cov uas tsis tiv taus rau qhov kub thiab txias tsis tuaj yeem muab tso ncaj qha rau hauv qhov cub txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau tiv thaiv kev sib tsoo thiab yuav tsum muab tso rau nyias rau hauv lub lauj kaub hlau. Zam kev ua kom puas lub pins thaum hloov chaw, yog li ntawd kom tsis txhob rhuav tshem nws coplanarity.
Tsheb thauj mus los, faib khoom, tshuaj ntsuam lossis tso rau hauv phau ntawv:
Yog tias cov neeg ua haujlwm yuav tsum tau siv cov cuab yeej SMD, lawv yuav tsum hnav txoj hlua khi tiv thaiv zoo li qub, sim siv cov xaum nqus los ua haujlwm, thiab xyuam xim tshwj xeeb kom tsis txhob tsoo lub pob hluav taws xob ntawm SOP, QFP thiab lwm yam khoom siv los tiv thaiv pin sib txuas.
Yuav ua li cas kom txuag tau qhov seem SMD:
Nruab nrog khoom muaj siab kub thiab tsis tshua muaj siab noo cia lub thawv. Khaw qhov tsis siv SMD lossis khoom noj pub rau hauv lub thawv tom qab qhib. Txawm li cas los xij, nws yog qhov kim kim rau nruab nrog qhov loj tshwj xeeb kub thiab qis cua sov cia lub tank.
Siv daim tseem lub hnab ntim lawm. Ntev npaum li lub hnab tsis puas thiab qhov kub ntxhov hauv sab hauv yog qhov zoo (txhua lub voj dub ntawm daim npav qhov ntsuas cua yog xiav, tsis muaj liab dawb), SMD uas tsis siv lawm tseem tuaj yeem rov qab rau hauv lub hnab, thiab tom qab ntawd kaw nrog daim kab xev.