Soo -saarista elektaroonigga ah ee looxyada wareegga daabacan (oo hadda ka dib loo yaqaan PCB) alaabtu waxay ku jireen adeegsi ganacsi ilaa 1948 waxayna bilaabeen inay soo baxaan oo si weyn loo isticmaalo 1950 -meeyadii. Warshadaha PCB-ga dhaqameedku waa warshad u baahan xoog iyo xoogeeda farsamo oo ka hooseeya tan warshadaha semiconductor-ka. Tan iyo horraantii 2000 -meeyadii, warshadaha semiconductor -ku waxay si tartiib tartiib ah uga wareegeen Mareykanka iyo Japan una wareegeen Taiwan iyo Shiinaha. Illaa iyo hadda, Shiinuhu wuxuu noqday soo -saare PCB oo saamayn ku leh adduunka, isagoo ka badan 60% wax soo saarka PCB -ga adduunka.

Qalabka caafimaadka:

Horumarka maanta ee cilmiga caafimaadka waxaa gebi ahaanba sabab u ah horumarka degdegga ah ee warshadaha elektiroonigga. Inta badan aaladaha caafimaadka (tusaale, mitirka pH, dareemayaasha garaaca wadnaha, cabbiraadda heerkulka, ELECTROcardiogram/EEG, aaladaha MRI, raajo, baaritaanno CT, aaladaha cadaadiska dhiigga, aaladaha cabbirka heerka gulukooska dhiigga, incubators, aaladda microbiological, iwm) waa pcBS -ku salaysan adeegsi shaqsi. PCBS -yadaani badiyaa waa isafgaran yihiin waxayna leeyihiin isuduwayaal qaab yar. Dareemayaasha cufnaanta micnaheedu waa in lagu meeleeyo qaybaha SMT yar cabbirrada PCB -ga yar. Aaladahaan caafimaad ayaa ka yar, fududahay in la qaado, khafiif ah oo si sahlan u shaqeynaya.

Qalabka warshadaha.

PCBS ayaa sidoo kale aad loogu adeegsadaa wax soo saarka, warshadaha iyo dhirta ku dhegan. Warshadahaani waxay leeyihiin mashiinno awood sare leh oo ay wataan wareegyo shaqo oo awood badan leh oo u baahan tamar badan. Si tan loo sameeyo, lakabka sare ee PCB -ga waxaa lagu daboolay lakab qaro weyn oo naxaas ah, kaas oo, ka duwan PCBS elektiroonig ah oo adag, wuxuu xambaarsan yahay ilaa 100 amperes. Tani waxay si gaar ah muhiim ugu tahay codsiyada sida alxanka qaansada, darawallada matoorada weyn ee servo, batariyeyaasha batroolka-aashitada, madmadowga marada suufka ee warshadaha milatariga iyo dharka.

Iftiinka

Iftiiminta, dunidu waxay u socotaa xalka tamarta ku habboon. These halogen bulbs are rare now, but now we see LED lights and high-intensity leds around. Laydhyadan yaryar waxay bixiyaan iftiin aad u sarreeya waxayna ku rakiban yihiin PCBS-ku ku salaysan aluminium. Aluminiumku wuxuu leeyahay hantida nuugista kulaylka oo ku shuba hawada. Sidaa darteed, sababta oo ah awoodda sare, PCBS -yada aluminium -ka ah ayaa caadi ahaan loo adeegsadaa wareegyada laydhka LED ee wareegyada LED -ga dhexdhexaadka iyo sare.

Baabuurta iyo aerospace

Another application of PCBS is in the automotive and aerospace industries. Arrinta guud ee halkan ka jirta ayaa ah dib u soo noqoshada diyaaradaha ama baabuurta. Markaa, si loo qanciyo gariirradaas xoogga badan, PCB-ga wuxuu noqdaa mid dabacsan.

Sidaa darteed, isticmaal PCB la yiraahdo Flex PCB. PCB -ga dabacsan wuxuu u adkeysan karaa gariirka sare iyo culeyska fudud, sidaas darteed wuxuu yareynayaa culeyska guud ee dayax -gacmeedka. PCBS -yadaan dabacsan ayaa sidoo kale lagu hagaajin karaa meel cidhiidhi ah, oo iyaduna ah faaiido weyn. PCBS -yadaan dabacsan waxay u adeegaan sidii isku -xireyaal, is -dhexgalyo, waxaana lagu soo ururin karaa Meelo is haysta, sida gadaasha gadaasha, boodhadhka hoostooda, iwm. Isku-darka PCBS-ga adag oo dabacsan ayaa sidoo kale la isticmaali karaa (PCBS-ka dabacsan ee dabacsan).

Laga soo bilaabo qaybinta warshadaha dalabka, elektaroonigga macaamiisha ayaa lagu xisaabiyey saamiga ugu sarreeya, ilaa 39%; Kumbiyuutarrada ayaa 22%ahaa; Isgaarsiinta 14%; Industrial controls and medical equipment accounted for 14 per cent; Automotive electronics accounted for 6%. Difaaca iyo aerospace ayaa lagu xisaabiyey 5%, aerospace iyo aaladaha caafimaadka iyo beero kale waxay leeyihiin shuruudo sare oo sax ah PCB.

PCB si baaxad leh ayaa loo isticmaalaa maxaa yeelay waxay leedahay faa’iidooyin badan oo gaar ah, kuwaas oo lagu soo koobi karo sida soo socota.

1. Cufnaanta sare.

Iyada oo la hagaajinayo isdhexgalka wareegga isku-dhafan iyo farsamada rakibidda, PCBS-ga cufan ayaa la horumarin karaa.

2. Kalsooni sare.

Iyada oo loo marayo kormeer taxane ah, tijaabooyin iyo tijaabooyin gabow ah, PCB -ga waxaa loo dammaanad qaadi karaa inuu si kalsooni leh u shaqeeyo muddo dheer.

3. Naqshadaynta.

Dhammaan noocyada kala duwan ee waxqabadka PCB (korontada, jirka, kiimikada, makaanikada, iwm.) Shuruudaha, waxaa lagu jaangooyn karaa naqshadeynta, jaangooynta iyo siyaabaha kale ee lagu gaari karo waqtiga naqshadeynta guddiga daabacan waa gaaban yahay, tayo sarena leh.

4. Wax soo saar.

Iyada oo loo marayo maareyn casri ah, jaangoynta, baaxadda (tirada), otomaatiga iyo wax soo saarka kale ayaa la samayn karaa si loo hubiyo joogtaynta tayada badeecada.

Tijaabin.

Hab tijaabo oo dhammaystiran, heerar tijaabo, qalabyo tijaabo oo kala duwan iyo qalab ayaa la sameeyay si loo baaro loona garto badeecadaha PCB si waafaqsan iyo nolosha adeegga.

6. Abaabul.

Badeecadaha PCB ma aha oo kaliya inay fududeeyaan isu imaatinka caadiga ah ee qaybaha kala duwan, laakiin sidoo kale waxay fududeeyaan soosaarka otomaatiga ah iyo baaxadda leh.

Isla mar ahaantaana, PCBS iyo qaybaha isu -geynta qaybaha kala duwan waxaa lagu soo ururin karaa qaybo waaweyn, nidaamyo, ama xitaa mashiinno dhan.

7. Ilaalin.

Badeecadaha PCB iyo shirarka ka kooban waa la jaangooyay sababta oo ah waxaa loo qaabeeyey loona soo saaray heer qiyaas leh.

Sidan oo kale, mar haddii nidaamku fashilmo, si dhakhso ah, si fudud oo dabacsan ayaa loo beddeli karaa, oo si dhakhso leh loogu soo celin karaa shaqadii nidaamka adeegga.