Malo osindikizira madera osindikizidwa ndi zigawo zofunika za zida zamagetsi. Ma PC lero ali ndi zigawo zingapo kwa iwo: gawo lapansi, mayendedwe, chigoba cha walonda, ndi silkscreen. Chimodzi mwazinthu zofunika kwambiri pa PCB ndi mkuwa, ndipo pali zifukwa zingapo zomwe zimapangitsa Copper kapena zitsulo zina ngati aluminiyamu kapena tini.
Kodi PCBS yopangidwa ndi chiyani?
Atanenedwa ndi kampani ya msonkhano wa PCB, ma PCBS amapangidwa ndi chinthu chotchedwa gawo lotchedwa fiberglass lomwe limalimbikitsidwa ndi epoxy stun. Pamwamba pa gawo lapansi ndi wosanjikiza wamkuwa wamkuwa womwe ukhoza kukhala wolumikizidwa mbali zonse ziwiri kapena imodzi yokha. Gawolo litapangidwa, opanga amaika zigawo zikuluzikuluzo. Amagwiritsa ntchito chigoba ndi silksneen limodzi ndi zopendekera, ma cavitor, omasulira, a Diodemity Tchires, ndi zina zapadera zapadera.
Kodi ndichifukwa chiyani zokongoletsa zamkuwa zimagwiritsidwa ntchito pa PCB?
Opanga PCB amagwiritsa ntchito zamkuwa chifukwa imakhala ndi mawonekedwe amagetsi komanso othandiza. Monga momwe magetsi amasunthira limodzi ndi PCB, mkuwa amasunga kutentha popanda kuwonongeka ndikutsindika PCB. Ndi ma entroys ena - ngati aluminiyamu kapena tinin - PCB imatha kutentha popanda kugwira ntchito moyenera.
Copper ndi Iloy yomwe imakonda chifukwa imatha kutumiza zizindikilo zamagetsi kudutsa bolodi popanda mavuto omwe amataya kapena kuchepetsa magetsi. Mphamvu ya kusamutsa kutentha imalola opanga kukhazikitsa kutentha kwapamwamba kumira pansi. Mkuwa palokha ndiwothandiza, ngati wokumbirayo amatha kuphimba phazi la PCB pa 1.4 zikwi za inchi kapena 35 micrometers.
Copper ikuchititsa kwambiri chifukwa imakhala ndi elekitro yaulere yomwe imatha kuyenda kuchokera ku atomu imodzi kupita ku ena osachedwa. Chifukwa imangokhala yothandiza kwambiri kufika pamlingo wocheperako monga momwe zimakhalira pamagawo ang'onoang'ono, mkuwa pang'ono umapita kutali.
Mkuwa ndi zitsulo zina zamtengo wapatali zomwe zimagwiritsidwa ntchito pa PCB
Anthu ambiri amazindikira ma PCS monga zobiriwira. Koma, nthawi zambiri amakhala ndi mitundu itatu yopanda kunja: Golide, siliva, ndi wofiira. Alinso ndi mkuwa wakhweni wamkati mkati ndi kunja kwa PCB. Zitsulo zina pa bolodi la madera zikuwonekera mumitundu yosiyanasiyana. Mafuta agolide ndi okwera mtengo kwambiri, siliva wosanjikiza ali ndi mtengo wapamwamba kwambiri, ndipo ofiira ndiye okwera mtengo.
Kugwiritsa ntchito kumiza golide mu PCBS
mkuwa pa boloni la madera osindikizidwa
Otsanulira golide wopangidwa ndi golide amagwiritsidwa ntchito polumikizana ndi zolumikizira. Wosanja wagolide wolima amakhala kuti angalepheretse kusamukira kwa ma atomu. Osanjikiza si golide wokhawo wamtundu, koma amapangidwa ndi golide weniweni. Golideyo ndi wowonda kwambiri koma ndi wokwanira kukulitsa moyo wa zinthu zomwe zikufunika kuti zithetsedwe. Golideyo amaletsa gulu la alonda kuti lisayendetse nthawi.
Kugwiritsa ntchito Silion Siliva ku PCBS
Siliva ndi chitsulo china chomwe chimagwiritsidwa ntchito popanga PCB. Ndiwotsika kwenikweni kuposa kumiza kwa golide. Kumizidwa kwasiliva kumatha kugwiritsidwa ntchito m'malo mwa kumiza golide chifukwa kumathandizanso polumikizana, ndipo kumachepetsa mtengo wonse wa bolodi. Kumizidwa kwasiliva nthawi zambiri kumagwiritsidwa ntchito mu ma PCB omwe amagwiritsidwa ntchito pamagalimoto ndi makompyuta.
Copper Clad Lalite mu PCBS
M'malo mogwiritsa ntchito mizimu, mkuwa amagwiritsidwa ntchito mu mawonekedwe. Ichi ndiye chofiyira chofiira cha PCB, ndipo ndi chitsulo chogwiritsidwa ntchito kwambiri. PCB imapangidwa kuchokera mkuwa pomwe chitsulo cha maziko, ndipo ndikofunikira kuti madera azilumikizana ndikulankhulana wina ndi mnzake.
Kodi cholembera cha mkuwa chimagwiritsidwa ntchito bwanji pa PCB?
Copper imagwiritsa ntchito zingapo m'ma PCBs, kuchokera ku Copy-Copy-commate imakonda kutsata. Copper ndiyofunikira pa PCB kuti igwire bwino ntchito.
Kodi PCB ndiyotani?
Kufufuza kwa PCB ndi komwe kumamveka ngati, njira yolowera kutsatira. Tsambali limaphatikizaponso netiweki, kuwonda, ndi kutchinjiriza, komanso ma fises ndi zigawo zomwe zimagwiritsidwa ntchito pa bolodi.
Njira yosavuta yomvetsetsa trace ndikuwona ngati msewu kapena mlatho. Kuti tigwirizane ndi magalimoto, tiyenera kukhala okwanira kupitiriza awiri a iwo. Iyenera kukhala yolimba kwambiri kuti isawonongeke. Ayeneranso kupangidwa ndi zinthu zomwe zingapeze kuchuluka kwa magalimoto omwe akuyendapo. Koma, zomwe zimachita zonsezi kwa ochepa kuti asunthe magetsi m'malo moyendetsa magalimoto m'malo mwa magalimoto.
Zigawo za PCB Squce
Pali zigawo zingapo zomwe zimapanga pcb trace. Ali ndi ntchito zosiyanasiyana zomwe zimayenera kuchitidwa kuti ayendere ntchito yake mokwanira. Copper imayenera kugwiritsidwa ntchito kuthandiza zinthu zomwe zimagwira ntchito, ndipo popanda PCB, sitidzakhala ndi zida zamagetsi. Ingoganizirani dziko lopanda mafoni, ma laputopu, opanga khofi, ndi magalimoto. Izi ndi zomwe timakhala nazo ngati ma PCB sanagwiritse ntchito mkuwa.
PCB imasanthula makulidwe
Mapangidwe a PCB amatengera makulidwe a bolodi. Makulidwe amakhudza zonse zomwe zimalumikizidwa.
PCB imayang'anira m'lifupi
M'lifupi mwake njanjiyi ndiyofunikanso. Izi sizimakhudza bwino bwino kapena zomwe zimaphatikizidwa ndi zigawo zikuluzikulu, koma zimasunga kusamutsa komwe kumachitika popanda kuwononga kapena kuwononga bolodi.
Pcb trace zamakono
PCB imafunikira pakali pano chifukwa izi ndi zomwe gululo limagwiritsa ntchito kusuntha magetsi kudzera pazigawo ndi mawaya. Copper imathandizira izi kuchitika, ndipo electron yaulere pa atomu iliyonse imayamba kuyenda bwino pa bolodi.
Chifukwa chiyani foil ya mkuwa ili pa PCBS
Njira yopangira ma PCB
Njira yopangira PCB ndizofanana. Makampani ena amachita mofulumira kuposa ena, koma onse amagwiritsa ntchito njira ndi zida. Awa ndi masitepe:
Kupanga maziko kuchokera ku fiberglass ndikupanga
Ikani zigawo za mkuwa pamaziko
Dziwani ndikukhazikitsa mawonekedwe amkuwa
Sambani bolodi posamba
Onjezani chigoba cha asitikali kuti muteteze PCB
Zovala Silkscreen pa PCB
Malo ndi msirikali otsutsana, kuphatikiza madera, capoctors, ndi zina zophatikizika
Yesani PCB
PCB imafunika kukhala ndi zinthu zapadera kwambiri kuti zizigwira ntchito moyenera. Chimodzi mwazinthu zofunikira kwambiri za PCB ndi mkuwa. Chivomerezochi chikufunika kuti azichita magetsi pazida zomwe ma PCS adzaikidwa. Popanda mkuwa, zida sizigwira ntchito chifukwa magetsi sakhala ndi aloy kuti adutse.
Post Nthawi: Apr-25-2022