Taw qhia txog V-txiav txheej txheem

Printed circuit board yog ib hom ntawm Circuit Board uas nqa cov khoom tseem ceeb ntawm cov khoom siv hluav taws xob niaj hnub no. Cov qauv ntawm cov ntawv ci tooj liab ntawm lub rooj tsavxwm txuas cov xov hlau, cov khoom siv, thiab cov khoom siv hluav taws xob los ua ib qho kev ua tiav. Tsis zoo li cov tshuab txiav zoo tib yam, cov txheej txheem V-txiav rau cov ntawv luam tawm Circuit Court boards yog cov cuab yeej siv hluav taws xob siab uas tuaj yeem siv los tsim ntau lub rooj tsav xwm hluav taws xob tsim nyog rau cov khoom siv hluav taws xob.

Cov txheej txheem V-txiav yog ib qho txheej txheem siv feem ntau rau pcb segmentation, uas cuam tshuam nrog kev txiav tag nrho lub rooj tsavxwm rau hauv ntau lub rooj me me uas siv lub V-shaped txiav. Cov boards me no tuaj yeem yooj yim tshem tawm ntawm lub rooj tsavxwm, tsim cov ntawv luam tawm ywj pheej. Cov txheej txheem V-txiav muaj qee qhov zoo, vim tias nws tuaj yeem ua tiav ntau yam haujlwm ua haujlwm thiab tag nrho cov txheej txheem kuj ceev heev. Lub caij no, cov txheej txheem V-txiav kuj tseem yog cov txheej txheem tsim khoom qis uas tuaj yeem txo tus nqi ntawm cov ntawv luam tawm Circuit Board. Tsis tas li ntawd, V-txiav txheej txheem tuaj yeem txhim kho kev ruaj ntseg thiab kev ntseeg siab ntawm PCB, cov khoom tsis tsim nyog uas muaj nyob hauv BOM (cov nqi ntawm cov ntaub ntawv) raug tshem tawm, thiab cov khoom kawg yuav pom qhov tsis ua haujlwm tsawg.

Cov txheej txheem V-txiav rau cov laug cam kuj muaj nws qhov kev siv tau, xws li thaum tsim cov khoom siv hluav taws xob loj. Vim tias cov ntawv luam tawm loj dua tau muab faib ua ntau daim me me, yog tias tsuas yog siv cov txiav npluav zoo tib yam, nws yuav ua rau tus nqi thiab tsim lub sijhawm ntawm lub rooj tsavxwm. Nyob rau hauv sib piv, V-txiav, raws li ib tug batch ua technology, yuav ua tau lub hom phiaj ntawm tej boards zoo dua.

Cov txheej txheem rau cov laug cam yog ib qho ntawm cov txheej txheem tseem ceeb hauv kev tsim hluav taws xob thiab tau siv dav. Nws tau txhim kho qhov zoo ntawm Circuit Court boards thiab yuav ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom siv hluav taws xob. Txawm hais tias nws daim ntawv thov ntau yam txwv, V-txiav cov txheej txheem tseem yog cov cuab yeej tsim khoom siv tau zoo rau cov khoom siv hluav taws xob loj.

Lub npe hu ua 'V-cut' yog ib hom kab sib faib uas cov chaw tsim khoom siv hluav taws xob luam tawm (PCB) siv lub tshuab txiav los txiav ntawm cov haujlwm tshwj xeeb ntawm PCB raws li cov neeg siv khoom xav tau. Nws lub hom phiaj yog los pab txhawb cov tom ntej 'De vaj huam sib luag' ntawm SMT luam tawm Circuit Board tom qab sib dhos. Nws cov duab txiav zoo li lus Askiv 'V', yog li nws lub npe. Qee tus neeg hu nws 'micro txiav', thaum lwm tus hu nws 'V-cut'

V-Cut residual thickness xav tau

Feem ntau hais lus, thaum txhais qhov zawj qhov loj ntawm V-Cut, peb tsuas yog txhais nws cov seem seem, uas yog qhov seem ntawm pawg thawj coj saib ntawm ob qhov rov qab V-chaw nres nkoj ntawm V-Cut zawj, vim qhov tuab no txiav txim siab qhov hnyav ntawm lub rooj tsavxwm. Nws yooj yim rau kev tawg thiab deformation.

Qhov feem ntau seem seem ntawm V-Cut yog pom zoo kom 1/3 ntawm lub rooj tsavxwm thickness, tab sis qhov tsawg kawg nkaus tsis pom zoo kom tsawg dua 0.35mm. Yog tias nws yog thinner, muaj kev pheej hmoo ntawm kev tawg thaum ntxov ntawm lub rooj tsavxwm thaum lub sijhawm tsim khoom. Qhov tuab tshaj plaws V-Cut tsis pom zoo kom siab dua 0.8mm. Yog tias nws yog tuab dua, V-Cut tshuab yuav tsis tuaj yeem txiav nws tag nrho hauv ib qho mus, thiab nws tseem yuav ua rau muaj kev puas tsuaj rau V-Cut tshuab hniav thiab txo nws txoj kev pab cuam lub neej.

Lub kaum sab xis xav tau rau V-Cut

Feem ntau hais lus, V-Cut tuaj yeem txhais tau peb lub kaum ntse ntse: 30 degree, 45 degree, thiab 60 degree, nrog rau feem ntau yog 45 degree.

Qhov loj ntawm lub kaum sab xis ntawm V-Cut, ntau cov npoo ntawm lub rooj tsavxwm raug txiav tawm los ntawm V-Cut, thiab cov kab ntawm cov PCB sib raug zoo yuav tsum muaj ntau sab hauv kom tsis txhob raug txiav los ntawm V-Cut los yog puas. thaum txiav V-Cut.

Qhov me me ntawm lub kaum sab xis ntawm V-Cut, qhov theoretically zoo dua qhov tsim qauv ntawm PCB, tab sis nws tsis tsim nyog rau lub neej ntawm V-Cut hniav hauv PCB factories. Vim tias qhov me me ntawm V-Cut lub kaum sab xis, qhov nyias nyias ntawm cov saw hluav taws xob, thiab qhov yooj yim dua yog hnav thiab tawg nws cov hniav. Tsis tas li ntawd, lub thickness ntawm lub rooj tsavxwm, qhov ntau dua lub kaum sab xis ntawm V-Cut, raws li nws yuav tsum tau txiav kom tob.