computer-repair-london

Njira yochepetsera PCB

M'mbuyomu, njira yochepetsera, kapena njira yolumikizira, idapangidwa pambuyo pake, koma masiku ano imagwiritsidwa ntchito kwambiri.Gawo lapansi liyenera kukhala ndi chitsulo chosanjikiza, ndipo mbali zosafunikira zikachotsedwa zonse zomwe zatsala ndi chitsanzo cha kondakitala.Ndi kusindikiza kapena kujambula zonse mkuwa poyera ndi kusankha wokutidwa ndi chigoba kapena dzimbiri zoletsa kuteteza ankafuna conductive chitsanzo ku chiwonongeko, ndiyeno izi TACHIMATA laminates kapena mapepala amkuwa anayikidwa mu etching zipangizo zimene sprites mkangano etching wothandizira pamwamba pa mbale.The etching agent amasintha mkuwa wowonekera kukhala wosungunuka mpaka madera onse owonekera asungunuka ndipo palibe mkuwa wotsalira.Chochotsa filimu chimagwiritsidwa ntchito kuchotsa filimuyo mwa mankhwala, kuchotsa choletsa corrosion ndikusiya chitsanzo cha mkuwa chokha.Gawo lodutsa la cokondakita wamkuwa ndilofanana ndi trapezoidal, chifukwa ngakhale kuti kukwera koyima kwake kwakulitsidwa pamapangidwe okongoletsedwa opopera, kuyikako kumachitikabe pansi komanso chammbali.Chotsatira chamkuwa chimakhala ndi khoma lakumbuyo lomwe silili bwino, koma lingagwiritsidwe ntchito.Palinso njira zina zopangira zojambulajambula za conductor zomwe zimatha kupanga mipanda yoyimirira.

Njira kuchepetsa ndi kusankha kuchotsa mbali ya mkuwa zojambulazo padziko mkuwa atavala laminate kupeza conductive chitsanzo.Kuchotsa ndiyo njira yayikulu yopangira makina osindikizidwa masiku ano.Ubwino wake waukulu ndi wokhwima, wokhazikika komanso wodalirika.

Njira yochepetsera imagawidwa makamaka m'magulu anayi otsatirawa:

Kusindikiza pazenera: (1) zojambulajambula zowoneka bwino zakutsogolo zimapangidwa kukhala chigoba cha silika, chophimba cha silika sichifunikira kuti dera lililonse likhale lophimbidwa ndi sera kapena zinthu zopanda madzi, ndiyeno ikani chigoba cha silika mu PCB yomwe ili pamwambapa, pa chophimba sadzakhala Zinakhazikika pa besmear kachiwiri chitetezo, kuika matabwa dera mu etching madzi, si mbali ya zoteteza chivundikirocho adzakhala dzimbiri, potsiriza zoteteza wothandizira.

(2) kuwala kusindikiza kupanga: zabwino upfront kamangidwe dera chithunzi pa pervious kuti kuwala filimu chigoba (njira yosavuta kugwiritsa ntchito chosindikizira kusindikizidwa zithunzi), kukhala mbali ya opaque mtundu kusindikiza, wokutidwa ndi kuwala tcheru pigment pa chopanda kanthu. PCB, kukonzekera bwino filimu pa mbale mu kukhudzana kukhudzana makina, kuchotsa filimu pambuyo bolodi dera ndi kutukula chiwonetsero chazithunzi, potsiriza amanyamula pa etch dera.

(3) Kusema kupanga: mbali zosafunikira pamzere wopanda kanthu zitha kuchotsedwa mwachindunji pogwiritsa ntchito bedi la mkondo kapena makina ojambulira laser.

(4) Kusindikiza kwa kutentha kwa kutentha: Zithunzi zozungulira zimasindikizidwa papepala lotengera kutentha ndi chosindikizira cha laser.Zithunzi zozungulira za pepala losamutsira zimasamutsidwa ku mbale yamkuwa yophimba ndi makina osindikizira kutentha, ndiyeno dera limakhazikika.


Nthawi yotumiza: Nov-16-2020