Imfashanyigisho ya FR-4 kumuzingo wacapwe

Ibiranga FR-4 cyangwa FR4 biranga bituma bihinduka cyane kubiciro bidahenze. Niyo mpamvu imikoreshereze yacyo ikwirakwizwa cyane mu bicuruzwa byacapwe. Kubwibyo, nibisanzwe ko dushyira ingingo kubyerekeye kurubuga rwacu.

Muri iyi ngingo, uzasangamo byinshi kuri:

Imiterere ninyungu za FR4
Ubwoko butandukanye bwa FR-4
Ibintu ugomba gusuzuma muguhitamo ubunini
Kuki uhitamo FR4?
Ubwoko bwa FR4 buboneka muri Proto-Electronics

Ibikoresho bya FR4 nibikoresho

FR4 ni igipimo cyasobanuwe na NEMA (Ishyirahamwe ry’amashanyarazi mu gihugu) kuri epoxy resin laminate ikomezwa nikirahure.

FR isobanura "flame retardant" kandi yerekana ko ibikoresho byujuje ubuziranenge bwa UL94V-0 kubikoresho bya plastike. Kode ya 94V-0 irashobora kuboneka kuri PC-4 zose za FR-4. Iremeza kudakwirakwiza umuriro no kuzimya byihuse iyo ibikoresho byaka.

Ihinduranya ryibirahure (TG) biri murutonde rwa 115 ° C kugeza 200 ° C kuri TGs cyangwa HiTGs bitewe nuburyo bwo gukora hamwe nibisigarira byakoreshejwe. Ubusanzwe FR-4 PCB izaba ifite igipande cya FR-4 gishyizwe hagati yuburyo bubiri buto bwumuringa.

FR-4 ikoresha bromine, icyo bita imiti ya halogene irwanya umuriro. Yasimbuye G-10, ikindi kintu cyarushijeho kwihanganira, mubisabwa byinshi.

FR4 ifite ibyiza byo kugira igipimo cyiza cyo kurwanya-uburemere. Ntabwo ikurura amazi, igumana imbaraga zubukanishi kandi ifite ubushobozi bwiza bwo kubika ahantu humye cyangwa huzuye.

Ingero za FR-4

Bisanzwe FR4: nkuko izina ryayo ribigaragaza, iyi niyo isanzwe FR-4 hamwe nubushyuhe bwubushyuhe bwa 140 ° C kugeza 150 ° C.

TG FR4: ubu bwoko bwa FR-4 bufite inzibacyuho ndende (TG) ya 180 ° C.

CTI Yisumbuye: Kugereranya Ikigereranyo cyo hejuru kirenga 600 Volts.

FR4 idafite umuringa ucanye: nibyiza kubisahani hamwe nibibaho.

Hano haribindi bisobanuro biranga ibyo bikoresho bitandukanye nyuma yingingo.

Ibintu ugomba gusuzuma muguhitamo ubunini

Guhuza n'ibigize: nubwo FR-4 ikoreshwa mugukora ubwoko bwinshi bwumuzunguruko wacapwe, ubunini bwabwo bugira ingaruka kubwoko bwibigize byakoreshejwe. Kurugero, ibice bya THT bitandukanye nibindi bice kandi bisaba PCB yoroheje.

Kubika umwanya: kuzigama umwanya nibyingenzi mugushushanya PCB, cyane cyane kubihuza USB nibikoresho bya Bluetooth. Ikibaho cyoroheje cyane gikoreshwa muburyo bwo kubika umwanya ni ngombwa.

Igishushanyo no guhinduka: ababikora benshi bakunda imbaho zibyibushye kuruta izinini. Ukoresheje FR-4, niba substrate ari nto cyane, byagira ibyago byo kumeneka niba ibipimo byubuyobozi byariyongereye. Kurundi ruhande, imbaho zibyibushye ziroroshye kandi zishoboka gukora V-grooves.

Ibidukikije PCB izakoreshwa bigomba gusuzumwa. Kubikoresho bigenzura ibikoresho bya elegitoronike mubuvuzi, PCB yoroheje itanga garanti. Ikibaho cyoroshye cyane - kandi rero cyoroshye - cyoroshye ubushyuhe. Barashobora kunama no gufata inguni itifuzwa mugihe cyo kugurisha intambwe.

Igenzura: uburebure bwikibaho bwerekana umubyimba wibidukikije bya dielectric, muriki gihe FR-4, aribyo byorohereza kugenzura inzitizi. Iyo impedance ari ikintu cyingenzi, ubunini bwikibaho nigipimo kigomba kwitabwaho.

Kwihuza: ubwoko bwihuza bukoreshwa kumuzingo wacapwe nabwo bugena uburebure bwa FR-4.

Kuki uhitamo FR4?

Igiciro gihenze cya FR4s kibagira amahitamo asanzwe yo gukora urukurikirane ruto rwa PCBs cyangwa kuri prototyping ya elegitoroniki.

Ariko, FR4 ntabwo ari nziza kumurongo mwinshi wacapwe. Mu buryo nk'ubwo, niba ushaka kubaka PCB yawe mubicuruzwa bitemerera byoroshye kwemeza ibice kandi bidahuye neza na PCB byoroshye, ugomba guhitamo ikindi kintu: polyimide / polyamide.

Ubwoko butandukanye bwa FR-4 buboneka muri Proto-Electronics

Bisanzwe FR4

FR4 SHENGYI umuryango S1000H
Umubyimba kuva kuri 0.2 kugeza kuri 3,2 mm.
FR4 umuryango wa VENTEC VT 481
Umubyimba kuva kuri 0.2 kugeza kuri 3,2 mm.
FR4 umuryango wa SHENGYI S1000-2
Umubyimba kuva kuri 0,6 kugeza kuri 3,2 mm.
FR4 umuryango wa VENTEC VT 47
Umubyimba kuva kuri 0,6 kugeza kuri 3,2 mm.
FR4 SHENGYI umuryango S1600
Ubunini busanzwe bwa mm 1,6.
FR4 umuryango wa VENTEC VT 42C
Ubunini busanzwe bwa mm 1,6.
Ibi bikoresho ni ikirahuri cya epoxy kitagira umuringa, cyagenewe gukoreshwa mu byapa byerekana, inyandikorugero, ibibaho, n'ibindi. Byakozwe hifashishijwe ibishushanyo mbonera bya Gerber cyangwa dosiye ya DXF.
Umubyimba kuva kuri 0.3 kugeza kuri 5 mm.