FR-4 yog ib qho kev cai ntawm qib ntawm cov khoom siv hluav taws xob, uas txhais tau hais tias cov khoom siv tshwj xeeb uas cov khoom siv cob yuav tsum muaj peev xwm tua tau los ntawm nws tus kheej tom qab hlawv.Nws tsis yog lub npe khoom, tab sis qib khoom siv.Yog li ntawd, feem ntau cov PCB Circuit Court boards, Muaj ntau ntau hom FR-4 cov ntaub ntawv siv, tab sis lawv feem ntau yog cov ntaub ntawv sib xyaw ua los ntawm Tera-Function epoxy resin nrog muab tub lim thiab iav fiber ntau.

FR-4 epoxy iav ntaub laminate, raws li cov neeg siv sib txawv, kev lag luam feem ntau hu ua: FR-4 Epoxy iav rwb thaiv tsev board, epoxy board, brominated epoxy board, FR-4, iav fiberboard, FR-4 reinforced board, FPC reinforced board. FR-4 epoxy board, nplaim hluav taws xob rwb thaiv tsev board, FR-4 laminated board, FR-4 iav fiberboard, epoxy iav ntaub board, epoxy iav ntaub laminated board, Circuit Court board drilling ncoo.

Lub npe FR4 los ntawm NEMA grading system qhov twg 'FR' sawv cev rau 'fire retardant', ua raws li tus qauv UL94V-0.Qhov kev xaiv FR4 yog ua raws li TG130.TG yog hais txog qhov hloov pauv iav qhov kub thiab txias - qhov kub ntawm cov khoom siv iav yuav pib deform thiab muag muag.Rau Fusion tus qauv boards tus nqi no yog 130 ° C, uas yog ntau tshaj li txaus rau feem ntau daim ntaub ntawv.Cov ntaub ntawv tshwj xeeb siab TG tuaj yeem tiv taus qhov kub ntawm 170 - 180 ° C, xws li peb cov khoom 3250.The FR-5, G11 tuaj yeem tiv taus qhov kub ntawm 155 ° C.

Feem ntau FR4 laminates tshuav lawv cov nplaim taws tiv thaiv nws cov ntsiab lus bromine, uas tsis yog-reactive halogen feem ntau siv hauv kev lag luam rau nws cov nplaim hluav taws.Qhov no muab FR4 cov ntaub ntawv pom tseeb qhov zoo raws li cov khoom siv PCB hauv cov ntsiab lus ntawm kev nyab xeeb hluav taws thaum nyob hauv thaj chaw.Nws kuj yog ib qho kev pom zoo me ntsis yog tias koj cov kev txawj soldering tsis tau raws li tus qauv.

Txawm li cas los xij, bromine yog ib qho halogen uas yog cov tshuaj lom neeg lom zem heev uas tau tso tawm hauv ib puag ncig thaum cov khoom siv hluav taws xob.Txawm tias me me los yeej txaus los ua rau tib neeg raug mob hnyav lossis tuag taus.Txhawm rau txo qis kev siv cov khoom siv phom sij hauv peb cov khoom siv niaj hnub, halogen-free FR4 laminates tau yooj yim.

Tsis ntev los no peb tau tsim cov ntawv dawb thiab dub halogen-dawb FR4 epoxy glassfiber laminate los xij, tam sim no nws yog siv los ua FPC reinforced board hauv iphone, cov ntawv cua sov, thiab lwm yam.