Farkon ya bayyana a shekarar 1950 guda mai kwakwalwa guda daya, mai amfani da PCB mai amfani da takarda mai amfani da takarda, mai sau biyu yana da sauki mu fahimci bangarorin biyu suna da wayoyi, don haka yafi dacewa, bangarorin sun fi girma sama da layuka 2, wayoyi yadda wahalar suke da farashi, takamaiman abun ciki don Allah bi masana'antar PCB ta China don fahimta:

Tarihin kwamitin kewaye guda ɗaya:

Jirgin zagaye mai ɗauke da gefe samfuri ne wanda aka haɓaka a Amurka tare da bayyanar transistors a farkon shekarun 1950s. A wancan lokacin, narkar da ganyen tagulla shine babbar hanyar samarwa.

A cikin 1953-1955, Japan ta yi amfani da kariyar tagulla da aka shigo da ita don yin takaddun ƙarfe na ƙarfe na tagulla a karon farko, kuma an yi amfani da shi sosai a rediyo.

A cikin 1956, bayan fitowar kwararrun masana'antun allon zagaye a Japan, fasahar kere-kere na rukunin kwamiti guda ya ci gaba cikin sauri.

Dangane da kayan aiki, a farkon matakin, takarda phenolic jan tsare tsare shine babban kayan. Koyaya, saboda ƙananan rufin lantarki, ƙarancin waldi mai ƙarancin waldi, murdiya da sauran abubuwan da ke haifar da sinadarin halitta a wancan lokacin, abubuwa kamar su zoben gas na zoben takarda da gilashin fiber epoxy resin an sami ci gaba a hankali. A halin yanzu, kwamiti guda da ake buƙata ta injunan lantarki masu amfani da kayan masarufi suna amfani da takarda mai cike da sinadarin.

Fasali na allon zagaye mai zagaye:

Rukunin guda yana kan PCB mafi mahimmanci, tare da bangarorin sun maida hankali a gefe daya kuma wayoyi a daya bangaren.Sunda wayoyi sun bayyana a bangare daya kawai, muna kiran wannan TYPE na PCB mai gefe daya. tsananin iyakokin bangarori guda ɗaya a cikin da'irar tsarawa (saboda kawai gefe ɗaya daga cikin da'irar ba za a iya ƙetare shi ba kuma dole ne a yi masa rauni a kewayen wata hanyar daban);

Hoton wayoyi na rukuni guda yana mamaye da Bugun Allon, wanda ke nufin ana buga waken toshewa akan farfajiyar tagulla, an tsara shi don hana alamomin Bugun mai sayarwa, kuma a ƙarshe ana amfani da sarrafa naushi don kammala ramuka da sifofin sassan. wasu samfuran da aka samar a ƙananan ƙananan kuma ta hanyoyi daban-daban, ana amfani da tsarin ɗaukar hoto wanda a ciki ake amfani da tsari ta hanyar mai ɗaukar hoto.

Abinda yake sama shine game da tarihin hukumar kewaye da halaye na gabatarwa, Ina fatan samun wani taimako a gare ku ~! Mu kamfani ne na pcb hukumar manufacturer, maraba da shawarwarin ku ~