Xaashiyaha madow ee Fr4 waa wax qabad-ka-qayb-qaade heer sare ah oo si ballaaran loogu isticmaalo elektiroonigga, baabuurta, iyo codsiyada warshadaha. Waxaa ka kooban dharka fiberlass ee loo yaqaan 'lowed' oo lagu dhejiyay resin-dib-u-dhac ku leh refsin, go'yaashaas waxaa lagu xoojiyay lakabka dusha sare ee midabbada leh ee lagu xoojiyey suuxinta iyo iska caabbinta UV. Qaabka aasaasiga ah wuxuu hubiyaa awood farsamo gaar ah, xasilloonida kuleylka, iyo kiimikada korantada. Cadaadiska ololka ololka ee FR4 Arimaheeda ayaa taageera codsiyada sida loo daabaco guddiyada wareejinta ee daabacan
Habka & Waxsoosaarka Waxsoosaarka
Xaashiyaha madow Fr4 waxaa lagu soo saaraa hanaan sax ah oo lagu wado. Marka hore, dharka galaaska e-galaas ah waxaa lagu dahaadhay resin bloresy-ka ah (loogu talagalay ololka dib-u-dhaca) oo lagu qaso midab madow ama dusha sare ee lagu daaweeyo isku-darka midabka. Dharka dib-u-haray ee dib-u-haynta ayaa la kariyey oo lagu ridayaa lamida badan ee culeyska sare (300-500 psi) iyo heerkul (170-190 ° C). Tani waxay daaweynaysaa dhalada, sameynta qaab adag, qaab dhismeed isku mid ah. Post-labi, go'yaal waa mid sax ah, oo la sawiray, loona tijaabiyey u dulqaadashada dhumucda (± 5%), xoogga jimicsiga (> 20 kv / mm), iyo ballaarinta kuleylka (ctem <14 ppm / ° C). Xakamaynta tayada tayada sare leh waxay xaqiijineysaa u hogaansanaanta heerarka caalamiga ah (IPC-4101, RoHS), dammaanad qaadka isku haleeya ee soo-jeedinta sare iyo codsiyada heerkulka-heerkulka.
Waxqabadka muhiimka ah ee waxqabadka FR4
Xoog farsamo yaqaan heer sare ah: Xiisad aad u sarreysa iyo xasillooni darro cabbir leh Hubi kalsoonida ku jirta PCB-ga saxda ah iyo codsiyada qaab-dhismeedka.
Iska caabin kuleyl ah
Dib -u-dhigista ololka
KHATARTA CODKA: XUQUUQDA QARANKA (> 20 KV / MM) iyo Guryaha xasilloonida (ε = 4.4.8 at 1 MHz), oo kaamil ah wareejinta wareejinta sare.
Rohs / Garsoor U hoggaansanaanta: Samaynta Eco-Eco-saaxiibtinimo oo ka xor ah walxaha halista ah.
Xaraashka la dhibay: la jaan qaada qoditaanka, marin-hawxinta, iyo dusha sare waxay dhammaataa (tus., Hasl, enig) is dhexgalka naqshadeynta qaab dhismeedka.
Codsiyada Xaashiyaha Fr4
Elektaroonigga : PCBs loogu talagalay aaladda macaamiisha, qalabka isgaarsiinta, iyo moduleles-ka macruufka.
Gawaarida : Guriyada Ecumu, dareenka sunta, iyo dahaarka batteriga EK.
Mashiinnada Warshadaha : Qaadista gawaarida, xargaha xakamaynta, iyo caqabadaha isbeddelka.
Aerospace : Nidaamyada avionics iyo looxyada wareega ee isku haleeya.
Nalalka LED : saldhigyada kuleylka u adkaysata iyo golayaasha darawalka.
Aaladaha caafimaadka : Qalabka ogaanshaha iyo qaybaha jeermiska jeermiska.
Tamarta la cusboonaysiin karo

Shirkaddayadu waxay diiradda saareysaa balaastigga waxqabadka heerka sare iyo qalabka dahabka. Alaabooyinkayaga ugu muhiimsan waxaa ka mid ah go'yaal caag ah oo dhameystiran sida poloyoxymymerene (pom), polycharbonate (polychertonenenene (polyphertones), iwm), polyphertones (polythertone), phenole-ka (phenethertone) iyo gudiga galaaska galaaska ephox. Iyada oo leh guryo aad u wanaagsan sida caabbinta heerkulka sare, xidho iska caabbinta iyo xoogga sare, alaabooyinkayaga ayaa si weyn loogu adeegsadaa gawaarida tamarta cusub, kombiyuutarka elektaroonigga ah, mashiinnada warshadaha, aerospace iyo beero kale.