Bungwe la madera osindikizidwa (PCB) ndi gawo loyambira lamagetsi lomwe limagwiritsidwa ntchito kwambiri pazogulitsa zamagetsi ndi zofananira. PCB nthawi zina imatchedwa pwb (board board). Unali kwambiri ku Hong Kong ndi Japan kale, koma tsopano ndizochepa (kwenikweni, PCB ndi PWB ndi yosiyana). M'mayiko akumadzulo ndi zigawo, zimatchedwa PCB. Kum'mawa, ili ndi mayina osiyanasiyana chifukwa cha mayiko osiyanasiyana. Mwachitsanzo, nthawi zambiri amatchedwa bolodi ladera ku Mainland China (m'mbuyomu limatchedwa gulu ladera losindikizidwa), ndipo nthawi zambiri limatchedwa PCB ku Taiwan. Mabwalo ozungulira amatchedwa magetsi amagetsi (madera) ku Japan ndi gawo lapansi ku South Korea.
PCB ndi chithandizo cha zinthu zamagetsi ndi chonyamula magetsi olumikizana ndi zamagetsi za zamagetsi za zamagetsi zamagetsi, makamaka kuchirikiza komanso kusagwirizana. Wochokera kunja, akunja akunja a madera ozungulira ali ndi mitundu itatu: golide, siliva, ndi ofiira. Yotchulidwa ndi mtengo: Golide ndiokwera mtengo kwambiri, siliva ndi wachiwiri, komanso wofiyira ndiye wotsika mtengo. Komabe, luntha mkati mwa dera ladera limakhala mkuwa weniweni, womwe ndi mkuwa.
Amanenedwa kuti pali zitsulo zambiri pamtengo wopaka PCB. Amanenedwa kuti, pafupifupi, foni iliyonse yanzeru ili ndi golide wa 0.05g, 0.26G siliva, ndi 12,6g mkuwa. Zolemba zagolide za laputora ndi nthawi 10 zomwe za foni yam'manja!
Monga chithandizo cha zinthu zamagetsi, ma PCB amafunikira msirisa pamalopo pamtunda, ndipo gawo la gawo lamkuwa liyenera kuthandizidwa. Zigawo za anthu owoneka bwino zimatchedwa mapiritsi. Ma Pads nthawi zambiri amakhala ozungulira kapena ozungulira ndi malo ochepa. Chifukwa chake, chigoba cha msirikali chitapakidwa, mkuwa wokha pamtanda umawonekera mlengalenga.
Copper yomwe imagwiritsidwa ntchito mu PCB imasavuta oxidid. Ngati mkuwa patha pad ndi oxidized, sizingakhale zovuta kugulitsidwa, komanso komanso kuchuluka kwa chiwerengero chiwonjezeke chachikulu, chomwe chidzakhudzanso magwiridwe omaliza. Chifukwa chake, padyo imayikidwa ndi golide wachitsulo, kapena pamwamba pa siliva wa siliva, kapena mawonekedwe apadera mankhwala amagwiritsidwa ntchito kuphimba curper wosanjikiza kuti athe kulumikizana ndi mpweya. Pewani makutidwe ndi kuteteza pad, kuti zitsimikizire zokolola mu ntchito yotsatirayi.
1. PCB Copper Clad Laling
Clain Clad ndi chinthu chowoneka bwino chopangidwa ndi nsalu yophatikizira galasi kapena zida zina zolimbikitsira ndi zopindika mbali imodzi kapena mbali zonse ndi zopindika zamkuwa ndi zopindika zotentha.
Tengani kalamba wagalasi-galasi CAMD Lamute monga chitsanzo. Zida zake zazikulu ndi zojambula za mkuwa, nsalu zagalasi yagalasi, ndi epoxy resin, ndi akaunti iti ya 32%, 29% ya mtengo wazogulitsa, motero.
Fakitale yamadera
Lamper Clad ndi chinthu choyambirira cha matabwa osindikizidwa, ndipo matabwa a madera osindikizidwa ndi zinthu zofunika kwambiri pazinthu zamagetsi zambiri kuti mukwaniritse zigawo zachigawo. Ndi kusintha kosalekeza kwaukadaulo, ena amagetsi a Copper Clad omwe angagwiritsidwe ntchito m'zaka zaposachedwa. Kupanga mwachindunji kumasindikizidwa zigawo zamagetsi. Omwe adachitapo mabatani osindikizidwa nthawi zambiri amapangidwa ndi mkuwa wofowoka, ndiye kuti zojambula zamkuwa m'mipata.
2. PCB imingrion Golide
Ngati golide ndi mkuwa ali kulumikizana mwachindunji, padzakhala kusinthasintha kwa electron yosamukira kwinaku, ndiye kuti golide wake uyenera kutchulidwa kuti "dzina lazili la eckel".
Kusiyana pakati pa golide wolimba golide ndi wofewa ndiye kapangidwe ka yomaliza ya golide yomwe imayikidwapo. Mukamapangana golide, mutha kusankha kwa exgolite golide woyenga kapena aloy. Chifukwa kuuma kwa golide woyenga bwino kumakhala kofewa, kumatchedwanso "golide wofewa". Chifukwa "golide" amatha kupanga chiwonetsero chabwino ndi "aluminiyamu", cob imafunikira makulidwe a golide woyenga bwino popanga mawaya a aluminiyamu. Kuphatikiza apo, ngati mungasankhe ku Exroproprofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrofrose golide-nickel alondo kapena cobat, chifukwa aloyu ali ovuta kuposa golide wopaka, amatchedwanso "golide wolimba".
Fakitale yamadera
Wosanjikiza wa golide amagwiritsidwa ntchito kwambiri m'matumbo a gulu, golide, ndi zolumikizira za bolodi la madera. Mabodi a mabwalo a mafoni ogwiritsira ntchito mafoni ambiri ali matabwa ambiri okhala ndi golide, omizidwa agolide, makebodi apakompyuta, maditambo a madera a digito nthawi zambiri samakhala matabwa agolide.
Golide ndi golide weniweni. Ngakhale atangokhala woonda kwambiri, amalemba kale pafupifupi 10% ya mtengo wa mabwalo adera. Kugwiritsa ntchito golide ngati ma pulone yopanga ndi imodzi yopanga kuwotcherera ndi inayo popewa kututa. Ngakhale chala chagolide chamitundu yokumbukira zomwe zakhala zikugwiritsidwa ntchito kwa zaka zingapo zikadalipondapo kale. Ngati mumagwiritsa ntchito mkuwa, aluminiyamu, kapena chitsulo, nthawi ya dzimbiri mumiyo. Kuphatikiza apo, mtengo wa mbale yokwezeka ndi golide ndi yokwera kwambiri, ndipo mphamvu yotentha ndi yosauka. Chifukwa njira ya ma nickel yopanda majindo imagwiritsidwa ntchito, vuto la ma disks akuda limatha kuchitika. The Nickel wosanjikiza idzasintha pakapita nthawi, ndipo kudalirika kwa nthawi yayitali kulinso vuto.
3.. Pcb iminession
Silivaion imication ndi yotsika mtengo kuposa kumiza golide. Ngati PCB ili ndi zokhudzana ndi ntchito zogwirira ntchito ndikufunika kuchepetsa mtengo, siliva womizidwa ndi chisankho chabwino; Kuphatikiza ndi kumiza kwaulere kwa siliva wabwino ndi kulumikizana, kenako siliva kumiza sikuyenera kusankhidwa.
Silivaion ili ndi ntchito zambiri m'magulu olumikizirana, magalimoto, ndi makompyuta onena, ndipo ilinso ndi mapulogalamu othamanga kwambiri. Popeza siliva ali ndi zinthu zabwino zamagetsi zomwe chithandizo china chofewa sichingafanane, chitha kugwiritsidwanso ntchito pazizindikiro zapamwamba kwambiri. Ma Ems amalimbikitsa pogwiritsa ntchito siliva womizidwa chifukwa ndizosavuta kusonkhana ndipo ali ndi mwayi wabwino. Komabe, chifukwa cha zofooka monga kuwonongeka ndi msirikali zolumikizira ma voids, kukula kwa Siliva yakhala pang'onopang'ono (koma osachepa).
kulitsa
Gulu la madera osindikizidwa limagwiritsidwa ntchito ngati chonyamula cholumikizira cha zamagetsi zamagetsi, ndi mtundu wa bolodi la madera adzakhudza mwachindunji magwiridwe antchito anzeru pa magetsi. Pakati pawo, mtundu wa ma boloni osindikizidwa ndi ofunika kwambiri. Ma silikayi amatha kusintha chitetezo, kugulitsa ndi kumaseweretsa komanso kuvala mabwalo adera. Pazinthu zopanga ma boloni osindikizidwa, elcophyfrophte ndi gawo lofunikira. Mtundu wa electrophtoit umakhudzana ndi kupambana kapena kulephera kwa njira yonseyo komanso magwiridwe antchito.
Njira zazikuluzikulu za PCB ndi mitengo ya mkuwa, timiyala tati, kuphika kwa nickel, kupanga golide ndi zina zotero. Ma silwerputiki ya mkuwa ndiye gawo loyambira la masitepe ozungulira mabodi a madera; Ma electuptung ya tini ndi njira yofunikira pakupanga madera ambiri osokoneza bongo ngati anti-corrosion wosanjikiza pokonza; Nickel elkrophteiting ndi magetsi otchinga ku nickel chotchinga chotchinga cha madera kuti mupewe kuwunika kwa mkuwa ndi golide; Golide wamagetsi amalepheretsa paphiri la nickel pamwamba kuti akwaniritse magwiridwe antchito ndi kukana kwa bolodi la madera.