A bolodi losindikizidwa (PCB) ndi bolodi yopyapyala yopangidwa kuchokera ku fiberglass, composite epoxy, kapena zida zina zoyala.Ma PCB amapezeka muzinthu zosiyanasiyana zamagetsi ndi zamagetsi monga beepers, mawailesi, ma radar, makina apakompyuta, etc. Mitundu yosiyanasiyana ya PCB imagwiritsidwa ntchito potengera ntchito.Kodi mitundu yosiyanasiyana ya ma PCB ndi iti?Werengani kuti mudziwe.

Kodi Mitundu Yosiyanasiyana ya PCB ndi iti?

Ma PCB nthawi zambiri amagawidwa malinga ndi pafupipafupi, zigawo zingapo ndi gawo lapansi lomwe amagwiritsidwa ntchito.Mitundu ina yotchuka ikukambidwa pansipa.

• Single Sided PCBs
  Ma PCB a mbali imodzi ndi mtundu woyambira wa matabwa ozungulira, omwe amakhala ndi gawo limodzi lokha la gawo lapansi kapena zoyambira.Chosanjikizacho chimakutidwa ndi chitsulo chopyapyala, mwachitsanzo, mkuwa - womwe ndi woyendetsa bwino magetsi.Ma PCB awa alinso ndi chigoba chotchinga choteteza, chomwe chimayikidwa pamwamba pa mkuwa pamodzi ndi malaya a silika.Ubwino wina woperekedwa ndi single sided PCB's ndi:
  • Ma Single sided PCB's amagwiritsidwa ntchito popanga voliyumu ndipo ndi otsika mtengo.
  • Ma PCBwa amagwiritsidwa ntchito pamabwalo osavuta monga masensa amagetsi, ma relay, masensa ndi zoseweretsa zamagetsi.
• Ma PCB Awiri Awiri
  Ma PCB am'mbali awiri ali ndi mbali zonse ziwiri za gawo lapansi lomwe lili ndi chitsulo chowongolera.Mabowo mu bolodi lozungulira amalola kuti zitsulo zigwirizane ndi mbali imodzi kupita ku ina.Ma PCB awa amalumikiza mabwalo mbali zonse ndi imodzi mwazinthu ziwiri zoyikira, zomwe ndiukadaulo wapabowo ndiukadaulo wapamtunda.Ukadaulo wapabowo umaphatikizapo kuyika zida zotsogola kudzera m'mabowo obowoledwa kale pa bolodi lozungulira, zomwe zimagulitsidwa pamapadi mbali zotsutsana.Ukadaulo wokwera pamwamba umaphatikizapo zida zamagetsi kuti ziziyikidwa mwachindunji pamwamba pa matabwa ozungulira.Ubwino woperekedwa ndi ma PCB okhala ndi mbali ziwiri ndi:
  • Kuyika pamwamba kumapangitsa kuti mabwalo ambiri amangiridwe pa bolodi poyerekeza ndi kukwera pamabowo.
  • Ma PCB awa amagwiritsidwa ntchito m'mapulogalamu osiyanasiyana, kuphatikiza mafoni am'manja, kuyang'anira mphamvu, zida zoyeserera, zokulitsa mawu, ndi zina zambiri.
• Ma PCB amitundu yambiri
  Mipikisano wosanjikiza PCBs ndi kusindikizidwa matabwa dera, amene apanga zigawo zoposa ziwiri mkuwa ngati 4L, 6L, 8L, etc. PCBs awa kukulitsa luso ntchito pawiri mbali PCB a.Zigawo zosiyanasiyana za bolodi la gawo lapansi ndi zida zotetezera zimalekanitsa zigawozo mu ma PCB amitundu yambiri.Ma PCB ndi ophatikizika, ndipo amapereka phindu la kulemera ndi malo.Ubwino wina woperekedwa ndi ma PCB amitundu yambiri ndi awa:
  • Mipikisano wosanjikiza PCBs kupereka mkulu mlingo wa kusinthasintha kapangidwe.
  • Ma PCB awa amagwira ntchito yofunika kwambiri pamayendedwe othamanga kwambiri.Amapereka malo ochulukirapo a chitsanzo cha conductor ndi mphamvu.
• Ma PCB olimba
  Ma PCB okhwima amatchula mitundu ya ma PCB omwe maziko ake amapangidwa kuchokera ku zinthu zolimba komanso zomwe sizingapindike.Ubwino wina woperekedwa ndi iwo:
  • Ma PCB awa ndi ophatikizika, omwe amatsimikizira kupangidwa kwamitundu yosiyanasiyana yozungulira mozungulira.
  • Ma PCB okhwima amapereka kukonza kosavuta ndi kukonza, popeza zigawo zonse zalembedwa bwino.Komanso, njira zowonetsera zimakonzedwa bwino.
• Ma PCB osinthika
  Ma PCB osinthika amamangidwa pa flexible base material.Ma PCB awa amabwera m'mbali imodzi, mbali ziwiri komanso mitundu yambiri.Izi zimathandiza kuchepetsa zovuta mkati mwa msonkhano wa chipangizo.Ubwino wina woperekedwa ndi ma PCB awa ndi:
  • Ma PCB awa amathandiza kupulumutsa malo ambiri, komanso kuchepetsa kulemera kwa gulu lonse.
  • Ma PCB osinthika amathandizira kuchepetsa kukula kwa bolodi, zomwe zimapangitsa kuti zikhale zabwino pazogwiritsa ntchito zosiyanasiyana komwe kumafunikira kachulukidwe wamakina apamwamba.
  • Ma PCB awa adapangidwa kuti azigwira ntchito, pomwe kutentha ndi kachulukidwe ndizofunikira kwambiri.
• Rigid-Flex-PCBs
  Ma PCB olimba osinthika ndi kuphatikiza kwa matabwa olimba komanso osinthasintha.Amakhala ndi magawo angapo a mabwalo osinthika omwe amamangiriridwa pa bolodi yopitilira imodzi.
  • Ma PCB awa amamangidwa molondola.Chifukwa chake, amagwiritsidwa ntchito m'njira zosiyanasiyana zamankhwala ndi zankhondo.
  • Pokhala wopepuka, ma PCB awa amapereka 60% ya kulemera ndi kupulumutsa malo.
• Ma PCB apamwamba kwambiri
  Ma PCB othamanga kwambiri amagwiritsidwa ntchito pafupipafupi 500MHz - 2GHz.Ma PCB awa amagwiritsidwa ntchito pamachitidwe osiyanasiyana ovuta kwambiri monga makina olumikizirana, ma PCB a microwave, ma PCB a microstrip, ndi zina zambiri.
• Aluminium kumbuyo PCBs
  Ma PCB awa amagwiritsidwa ntchito pamagetsi apamwamba, chifukwa mapangidwe a aluminiyamu amathandizira pakuwotcha kutentha.Aluminiyamu backed PCBs amadziwika kuti kupereka mkulu mlingo wa kuuma ndi otsika mlingo wa kukula matenthedwe, zomwe zimawapangitsa kukhala abwino kwa ntchito kukhala mkulu makina kulolerana.Ma PCB amagwiritsidwa ntchito pa ma LED ndi magetsi.

Kufunika kwa ma PCB kukukulirakulira m'magawo osiyanasiyana ogulitsa.Today, mudzapeza zosiyanasiyana odziwika opanga PCB ndi ogulitsa, omwe amapereka msika wa zida zolumikizirana.Nthawi zonse tikulimbikitsidwa kugula ma PCB ogwiritsira ntchito mafakitale ndi malonda kuchokera kwa opanga otchuka ndi ogulitsa.Ma Traces Opotoka ndi amodzi odalirika komanso odziwa kupanga ma PCB osiyanasiyana.Kampaniyo nthawi zonse imapatsa makasitomala awo ma board oyendetsa apamwamba kwambiri omwe ali ndi liwiro labwino kwambiri, komanso magwiridwe antchito.