FR-4 ikodhi yegiredhi rezvinhu zvinodzivirira murazvo, izvo zvinoreva chirevo chechinhu icho resin zvinhu zvinofanirwa kukwanisa kudzima yega mushure mekupisa.Harisi zita rezvinhu, asi giredhi rezvinhu.Naizvozvo, general PCB wedunhu mabhodhi, Kune akawanda marudzi eFR-4 giredhi zvinhu zvinoshandiswa, asi mazhinji acho ari musanganiswa zvinhu zvakagadzirwa neTera-Function epoxy resin ine filler uye girazi fiber.

FR-4 epoxy girazi jira raminate, maererano nevashandisi vakasiyana, indasitiri iyi inowanzonzi: FR-4 Epoxy Glass insulation board, epoxy board, brominated epoxy board, FR-4, Girazi fiberboard, FR-4 yakasimbiswa bhodhi, FPC yakasimbiswa bhodhi. , flexible circuit board reinforced board, FR-4 epoxy board, flame-retardant insulation board, FR-4 laminated board, FR-4 glass fiberboard, epoxy glass cloth board, epoxy glass cloth laminated board, circuit board drilling pad.

Zita rekuti FR4 rinobva kuNEMA grading system apo iyo 'FR' inomirira 'fire retardant', inoenderana neUL94V-0 standard.Iyo FR4 sarudzo inoteverwa neTG130.Iyo TG inoreva kushanduka kwegirazi tembiricha - tembiricha iyo iyo girazi-yakasimbiswa zvinhu inotanga kukanganisa uye kupfava.Kumabhodhi akajairwa eFusion uhwu hunokosha i130°C, iyo inodarika zvakakwana kune dzakawanda zvikumbiro.Special High TG zvinhu zvinokwanisa kushingirira tembiricha ye170 - 180°C, senge zvinhu zvedu 3250.Iyo FR-5,G11 inogona kumira tembiricha ye155°C.

Mazhinji FR4 laminates anokwereta kupikisa kwavo murazvo kune ayo bromine zvirimo, isingaite-reactive halogen inowanzoshandiswa mumaindasitiri nekuda kwayo kudzoreredza murazvo.Izvi zvinopa FR4 zvinhu zviri pachena zvakanakira se stock PCB zvinhu maererano nekuchengetedza moto uri mumunda.Izvo zvakare zvinosimbisa zvishoma kana hunyanzvi hwako hwekutengesa husina kusvika pachiyero.

Nekudaro, bromine ihalogen inove makemikari ane muchetura anoburitswa mumhepo kana zvinhu zvapiswa.Kunyange mari shoma inokwana kukuvadza vanhu zvakanyanya kana kufa.Kuderedza kushandiswa kwezvinhu zvine njodzi zvakadaro muzvigadzirwa zvedu zvemazuva ese, halogen-isina FR4 laminates inowanikwa nyore.

Munguva pfupi yadarika takagadzira chena uye nhema halogen-isina FR4 epoxy glassfiber laminate mashiti, ikozvino inoshandiswa seFPC yakasimbiswa bhodhi muphone, kupisa mashizha, zvichingodaro.