Lub neej txee ntawm PCB?Ci lub sij hawm thiab kub?
- 2021-12-22 15:00:39 dr hab
Lub sijhawm khaws cia ntawm PCB, thiab qhov kub thiab lub sijhawm ntawm kev siv qhov cub ua haujlwm rau ci PCB yog txhua yam tswj hwm los ntawm kev lag luam. Lub txee lub neej ntawm PCB yog dab tsi?Thiab yuav ua li cas thiaj txiav txim siab lub sijhawm ci thiab kub? 1. Cov specification ntawm PCB tswj 1. PCB unpacking thiab cia (1) Cov PCB pawg thawj coj saib tuaj yeem siv ncaj qha online hauv 2 lub hlis ntawm hnub tsim khoom ntawm lub rooj sib dhos thiab tsis qhib PCB (2) PCB board tsim hnub yog nyob rau hauv 2 lub hlis, thiab lub unpacking hnub yuav tsum tau cim tom qab unpacking (3) PCB board manufacturing hnub yog nyob rau hauv 2 lub hlis, tom qab unpacking, nws yuav tsum tau nyob online thiab siv nyob rau hauv 5 hnub 2. PCB ci (1) Yog tias PCB raug kaw thiab ntim rau ntau tshaj 5 hnub hauv 2 lub hlis ntawm hnub tsim khoom, thov ci ntawm 120 ± 5 ℃ rau 1 teev (2) Yog tias PCB ntau tshaj 2 lub hlis txij li hnub tsim khoom, thov ci ntawm 120 ± 5 ℃ rau 1 teev ua ntej mus online (3) Yog tias PCB yog 2-6 lub hlis dhau los ntawm hnub tsim khoom, thov ci ntawm 120 ± 5 ℃ rau 2 teev ua ntej mus online (4) Yog tias PCB yog 6 lub hlis mus rau 1 xyoos laus dua li hnub tsim khoom, thov ci ntawm 120 ± 5 ° C rau 4 teev ua ntej mus online (5) Lub PCB ci yuav tsum siv li ntawm 5 hnub (muab tso rau hauv IR REFLOW), thiab PCB yuav tsum tau ci rau lwm teev ua ntej nws tuaj yeem siv online. (6) Yog tias PCB ntau tshaj 1 xyoos txij li hnub tsim khoom, thov ci ntawm 120 ± 5 ℃ rau 4 teev ua ntej yuav mus online, thiab tom qab ntawd xa mus rau lub Hoobkas PCB kom rov tshuaj tin ua ntej mus online. 3. PCB ci txoj kev (1) Cov PCBs loj (16 PORTs thiab siab dua, suav nrog 16 PORTs) tau muab tso rau hauv kab rov tav, nrog ntau tshaj 30 daim hauv ib pawg.Qhib lub qhov cub li ntawm 10 feeb tom qab lub ci tiav, tshem tawm lub PCB, thiab muab tso rau hauv tiaj tus kom txias txias (yuav tsum nias lub phaj bay fixture) (2) Cov PCBs me thiab nruab nrab (nrog rau 8PORTs hauv qab 8PORT) tau muab tso rau kab rov tav.Qhov siab tshaj plaws ntawm ib pawg yog 40 pieces.Tus naj npawb ntawm hom ntsug yog unlimited.Qhib lub qhov cub thiab tshem tawm PCB li ntawm 10 feeb tom qab lub ci tiav.Banwan fixture) 2. Kev khaws cia thiab ci ntawm PCBs hauv ntau thaj tsam Lub sijhawm tshwj xeeb cia thiab ci kub ntawm PCB tsis yog tsuas yog cuam tshuam nrog lub peev xwm thiab cov txheej txheem tsim khoom ntawm PCB cov chaw tsim khoom, tab sis kuj muaj kev sib raug zoo nrog thaj av. PCB ua los ntawm OSP txheej txheem thiab cov txheej txheem kub immersion feem ntau muaj lub neej txee ntawm 6 lub hlis tom qab ntim, thiab nws feem ntau tsis pom zoo kom ci rau OSP txheej txheem. Kev txuag thiab ci lub sij hawm ntawm PCB muaj ntau yam ua rau thaj tsam.Nyob rau sab qab teb, cov av noo feem ntau hnyav dua, tshwj xeeb tshaj yog nyob rau hauv Guangdong thiab Guangxi.Lub Peb Hlis thiab Plaub Hlis ntawm txhua xyoo, yuav muaj huab cua "rov qab los rau sab qab teb", thiab nag los txhua hnub.Tsis tu ncua, nws tau ntub heev thaum lub sijhawm no.PCB raug rau huab cua yuav tsum tau siv li ntawm 24 teev, txwv tsis pub nws yooj yim rau oxidize.Tom qab qhib ib txwm, nws yog qhov zoo tshaj plaws los siv nws hauv 8 teev.Rau qee qhov PCBs uas yuav tsum tau ci, lub sijhawm ci yuav ntev dua.Hauv cov cheeb tsam sab qaum teb, huab cua feem ntau qhuav, lub sijhawm khaws cia PCB yuav ntev dua, thiab lub sijhawm ci tuaj yeem luv dua.Qhov ci kub yog feem ntau 120 ± 5 ℃, thiab lub sijhawm ci yog txiav txim siab raws li qhov xwm txheej tshwj xeeb. Rau PCB lub sijhawm cia, lub sijhawm ci thiab qhov kub thiab txias, cov teeb meem tshwj xeeb yuav tsum tau txheeb xyuas kom meej, thiab cov kev xaiv tshwj xeeb yuav tsum tau ua los ntawm PCB kev tswj hwm thiab kev tswj xyuas tshwj xeeb, raws li lub peev xwm tsim khoom, txheej txheem, cheeb tsam thiab lub caij nyoog ntawm cov tuam txhab sib txawv. . 
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