Dab tsi yog cov khoom siv thiab kev ua haujlwm uas xav tau rau PCBA ntau lawm?

PCBA ntau lawm yuav tsum muaj cov cuab yeej siv yooj yim xws liSMT soldering paste tshuab luam ntawv, SMT tshuab, reflowqhov cub, AOItshuab, tivthaiv tus pin shearing tshuab, yoj soldering, tin rauv, phaj ntxhua khaub ncaws, ICT xeem fixture, FCT xeem fixture, aging xeem khib, thiab lwm yam PCBA ua cov nroj tsuag ntawm ntau qhov sib txawv yog nruab nrog cov khoom sib txawv.

1.SMT tshuab luam ntawv

Niaj hnub nimno solder paste tshuab luam ntawv feem ntau yog tsim los ntawm phaj mounting, solder paste ntxiv, embossing, Circuit Court board kis tau tus mob thiab hais txog.Nws txoj hauv kev ua haujlwm yog: thawj zaug, lub rooj tsavxwm luam tawm yog tsau rau ntawm lub rooj zaum luam ntawv, thiab tom qab ntawd sab laug thiab sab xis scrapers ntawm lub tshuab luam ntawv hloov pauv cov tshuaj txhuam los yog cov kua nplaum liab mus rau cov phaj sib txuas los ntawm cov hlau mesh, thiab tom qab ntawd cov khoom siv hluav taws xob hloov hluav taws xob los yog cov kua nplaum liab los ntawm cov hlau nplaum. PCB nrog cov ntawv luam tawm tsis zoo yog nkag mus rau lub tshuab SMT los ntawm lub rooj sib kis rau SMT tsis siv neeg.

2.Qhov tshuab

SMT: tseem hu ua "Nto Mount System", nyob rau hauv cov kab ntau lawm, nws yog configured tom qab lub solder paste tshuab luam ntawv, yog ib tug ntaus ntawv los ntawm kev txav lub SMT lub taub hau los tso lub SMT Cheebtsam kom raug rau lub PCB solder phaj.Nws muab faib ua phau ntawv thiab tsis siv neeg.

3.Reflow vuam

Lub reflow muaj cov cua kub cua sov uas ua kom cua sov los yog nitrogen rau qhov kub txaus kom tshuab mus rau lub rooj tsav xwm Circuit Court uas twb tau txuas nrog rau cov khoom, cia cov solder ntawm ob sab kom yaj thiab daim ntawv cog lus rau lub motherboard.Qhov zoo ntawm cov txheej txheem no yog qhov ntsuas kub tau yooj yim tswj, oxidation yog zam thaum vuam, thiab cov nqi tsim khoom yog tswj tau yooj yim dua.

4. AOI ntes

Lub npe tag nrho ntawm AOI (Tsis Siv Neeg Optic Inspection) yog Kev Tshuaj Xyuas Tsis Siv Neeg Optical, uas yog cov khoom siv uas kuaj pom cov teeb meem tshwm sim hauv vuam ntau lawm raws li cov qauv kho qhov muag.AOI yog qhov kev sim tshiab tshiab, tab sis kev loj hlob sai, ntau lub tuam txhab tau tsim cov cuab yeej ntsuas AOI.Thaum lub sijhawm kuaj pom tsis siv neeg, lub tshuab yuav luam theej duab PCB tau los ntawm lub koob yees duab, sau cov duab, sib piv cov pob qij txha kuaj nrog cov kev tsim nyog hauv cov ntaub ntawv, thiab tshawb xyuas qhov tsis xws ntawm PCB tom qab ua cov duab, thiab tso saib / kos cov tsis xws luag los ntawm cov zaub lossis tsis siv neeg kos npe rau cov neeg ua haujlwm kho.

5. Pin txiav tshuab rau cov khoom

Siv rau kev txiav thiab deformation ntawm tus pin Cheebtsam.

6. Wave soldering

Wave soldering yog cia lub vuam nto ntawm lub phaj plug-in ncaj qha mus rau lub siab kub kua tin kom ua tiav lub hom phiaj ntawm vuam, nws cov kub kub kua tin kom muaj ib tug inclined nto, thiab los ntawm ib tug tshwj xeeb ntaus ntawv los ua kua tin daim ntawv. zoo li nthwv dej tshwm sim, yog li hu ua "wave soldering", nws cov khoom tseem ceeb yog solder bar.

7. Tin cub

Feem ntau, tin furnace yog hais txog kev siv hluav taws xob vuam hauv cov cuab yeej vuam.Rau cov khoom sib cais Circuit Court board vuam sib xws, yooj yim rau kev khiav lag luam, nrawm, ua haujlwm siab, yog koj tus pab zoo hauv kev tsim khoom thiab kev ua haujlwm.

8. Lub tshuab ntxhua khaub ncaws

Nws yog siv los ntxuav lub PCBA board thiab tshem tawm cov seem ntawm lub rooj tsavxwm tom qab vuam.

9. ICT xeem fixture

ICT Test yog tsuas yog siv los ntsuas qhov qhib Circuit Court, luv Circuit Court thiab vuam ntawm txhua qhov chaw ntawm PCBA los ntawm kev tiv tauj cov ntsiab lus ntawm PCB layout

10. FCT xeem fixture

FCT yog hais txog txoj kev xeem uas muab kev ua haujlwm simulated ib puag ncig (excitation thiab load) rau UUT: Chav Nyob Hauv Kev Xeem, ua kom nws ua haujlwm hauv ntau lub xeev tsim, thiaj li kom tau txais qhov ntsuas ntawm txhua lub xeev los txheeb xyuas cov haujlwm ntawm UUT.Yooj yim muab, nws txhais tau hais tias UUT thauj khoom tsim nyog excitation thiab ntsuas seb cov lus teb cov lus teb ua tau raws li qhov yuav tsum tau ua.

11. Kev kuaj kev laus

Cov khib nyiab pov tseg tuaj yeem kuaj PCBA pawg thawj coj hauv pawg.Lub PCBA lub rooj tsavxwm nrog cov teeb meem tuaj yeem kuaj tau los ntawm simulating tus neeg siv lub sijhawm ntev.

SMT kab


Post lub sij hawm: Dec-28-2020

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