Ma’anar FR4 a cikin FR4 gilashin fiber fiber gilashi

FR4 lambar ce don darajar kayan da ke hana wuta. Yana wakiltar takamaiman kayan abu wanda kayan aikin resin dole ne su iya kashe kansa da kansa bayan ƙonawa. Ba sunan abu bane, amma darajar kayan. Don haka, a halin yanzu ana amfani dashi a cikin allunan kewaye. Akwai nau’ikan kayan FR-4 da yawa, amma yawancin su kayan haɗin gwiwa ne waɗanda aka yi da abin da ake kira Tera-Function resin epoxy, Filler da fiber glass.

NEMA ƙa’idar ƙa’ida ce ta Ƙungiyar Masu ƙera Lantarki ta Amurka. Daidaitaccen ma’aunin IEC shine EPGC202. Babu ma’aunin cikin gida daidai da shi.

Mafi ƙarancin ma’aunin gida shine 3240 epoxy laminated gilashin zane jirgin. Daidaitaccen ma’aunin IEC na 3240 shine EPGC201, kuma akwai bambanci kawai a cikin jinkirin wuta tsakanin EPGC201 da EPGC202. Sabili da haka, ana iya ɗauka kawai cewa FR-4 ingantaccen samfuri ne na 3240 tare da haɓaka jinkirin wuta.

Jirgin fiber fiber gilashin FR4, babban kayan an shigo da prepreg. Launuka farare, rawaya da kore. Har yanzu yana da babban ƙarfin injin a zafin jiki na 150 ℃. Yana da kyakkyawan aikin lantarki a cikin busasshen yanayi da rigar, mai hana wuta, wanda ake amfani da shi a cikin sassan lantarki da na lantarki Insulation na wasu masana’antu ana ƙera su a hankali tare da shigo da albarkatun ƙasa, injinan cikin gida da daidaitaccen fasaha; manyan ƙayyadaddun bayanai sune 1000*2000 mm 1020mm*1220mm, saboda fa’idodin albarkatun ƙasa, yana ba da tabbacin babban inganci, ƙarancin farashi, da isar da lokaci. Yana da ingantaccen abokin ciniki a gida da waje kuma yana jin daɗin babban suna.

Halayen aikace -aikacen raba allo na gilashin fiber gilashin FR4

1. Sigogi iri -iri. Dabbobi daban -daban, wakilai masu warkarwa, da tsarin canzawa na iya kusan dacewa da buƙatun aikace -aikace daban -daban akan fom, kuma kewayon na iya kasancewa daga ɗan ƙaramin danko zuwa madaurin daskarewa.

2. Magani mai dacewa. Zaɓi wakilai daban -daban na warkarwa, tsarin resin epoxy kusan ana iya warkewa a cikin yanayin zafin jiki na 0 ~ 180 ℃.

3. Manne mai ƙarfi. Ƙungiyoyin polar hydroxyl na asali da haɗin ether a cikin sarkar kwayoyin resins na epoxy sun sa ya zama mai mannewa ga abubuwa daban -daban. Rushewar resin epoxy yana da rauni yayin da ake warkewa, kuma damuwar cikin da aka samar tana da ƙanƙanta, wanda kuma yana taimakawa haɓaka ƙarfin adhesion.

4. Ƙananan raguwa. Halin da ke tsakanin resin epoxy da wakilin maganin da ake amfani da shi ana aiwatar da shi ta hanyar tarawa kai tsaye ko raunin buɗe polymerization na ƙungiyoyin epoxy a cikin ƙwayar resin, kuma babu ruwa ko wasu samfura marasa ƙarfi da aka saki. Idan aka kwatanta da sinadarin polyester wanda ba a cika cikawa da resins na phenolic ba, suna nuna raguwa sosai (ƙasa da 2%) yayin warkewa.

1. Kayan aikin injiniya. Tsarin warkar da epoxy resin yana da kyawawan kaddarorin inji.