Gutondekanya kuva hasi kugeza hejuru ni ibi bikurikira:
94HB / 94VO / 22F / CEM-1 / CEM-3 / FR-4
Ibisobanuro ni ibi bikurikira:
94HB: Ikarito isanzwe, ntabwo irinda umuriro (ibikoresho byo mu rwego rwo hasi cyane, bipfa gukubita, ntibishobora gukoreshwa nkibibaho byamashanyarazi)
94V0: ikarito ya flame retardant (gupfa gukubita)
22F: Ikibaho kimwe cya kabiri cyikirahure fibre (gupfa gukubita)
CEM-1: Ikibaho cya fiberglass imwe (igomba gucukurwa na mudasobwa, ntigukubite)
C. metero ihendutse kuruta FR-4)
FR-4: Ikibaho cya fiberglass ebyiri
Igisubizo cyiza
1.c Itondekanya ryimiterere yumuriro irashobora kugabanywamo ubwoko bune: 94V - 0 / V-1 / V-2 na 94-HB
2. Itegure: 1080 = 0.0712mm, 2116 = 0.1143mm, 7628 = 0.1778mm
3. FR4 CEM-3 ni ikibaho, fr4 ni ikibaho cya fibre fibre, cem3 ni substrate igizwe
4. Halogen idafite ibikoresho fatizo bitarimo halogene (fluorine, bromine, iyode nibindi bintu), kubera ko brom izabyara gaze uburozi iyo itwitswe, bisabwa no kurengera ibidukikije.
Bitanu.Tg nubushyuhe bwikirahure, ni ukuvuga gushonga.
Ikibaho cyumuzunguruko kigomba kuba cyirinda umuriro, ntigishobora gutwika ubushyuhe runaka, gishobora koroshya gusa.Ubushyuhe muri iki gihe bwitwa ubushyuhe bwikirahure (Tg point), kandi ako gaciro kajyanye nuburinganire bwimiterere yibibaho bya PCB.
Nibihe birebire bya Tg PCB byumuzunguruko nibyiza byo gukoresha Tg PCB ndende
Iyo ubushyuhe bwibibaho byanditseho Tg byazamutse mukarere runaka, substrate izahinduka kuva "ibirahuri" ihinduka "reberi", kandi ubushyuhe muriki gihe bwitwa ubushyuhe bwikirahure (Tg) bwibibaho.Nukuvuga, Tg nubushyuhe bwo hejuru (° C.) aho substrate ikomeza gukomera.Nukuvuga ko ibikoresho bisanzwe bya PCB bidashobora gusa koroshya, guhindura, gushonga, nibindi, mubushyuhe bwinshi, ariko kandi byerekana kugabanuka gukabije kumashanyarazi na mashanyarazi (ngira ngo ntushaka kubona iki kibazo mubicuruzwa byawe bwite nukureba ibyiciro bya PCB.).Nyamuneka ntukoporore ibiri kururu rubuga
Mubisanzwe, Tg yisahani iri hejuru ya dogere 130, Tg muremure muri rusange irenga dogere 170, naho Tg yo hagati irenze dogere 150.
Mubisanzwe, PCB yacapishijwe imbaho hamwe na Tg ≥ 170 ° C bita imbaho ndende za Tg.
Tg ya substrate iriyongera, kandi kurwanya ubushyuhe, kurwanya ubushuhe, kurwanya imiti, no gutuza kw'ikibaho cyacapwe bizanozwa kandi bitezimbere.Hejuru ya TG agaciro, nibyiza birwanya ubushyuhe bwikibaho, cyane cyane mubikorwa bidafite inzira, hariho byinshi bya Tg.
Tg nyinshi bisobanura kurwanya ubushyuhe bwinshi.Hamwe niterambere ryihuse ryinganda za elegitoroniki, cyane cyane ibicuruzwa bya elegitoronike bihagarariwe na mudasobwa, biratera imbere bigana ku mikorere ihanitse kandi igizwe n’ibice byinshi, bisaba guhangana n’ubushyuhe bukabije bw’ibikoresho bya PCB nk'ingwate ikomeye.Kugaragara no guteza imbere tekinoroji yo kwishyiriraho cyane ihagarariwe na SMT na CMT byatumye PCB irushaho gutandukana no gushyigikirwa nubushyuhe bukabije bwa substrate mubijyanye na aperture ntoya, umurongo mwiza, no kunanuka.
Kubwibyo rero, itandukaniro riri hagati ya rusange FR-4 na Tg FR-4 ni uko imbaraga za mashini, ituze ryikigereranyo, gufatira hamwe, kwinjiza amazi, hamwe no kubora kwamashanyarazi yibintu biri mubushyuhe, cyane cyane iyo bishyushye nyuma yo kwinjiza amazi.Hariho itandukaniro mubihe bitandukanye nko kwagura ubushyuhe, kandi ibicuruzwa bya Tg biragaragara ko ari byiza kuruta ibikoresho bisanzwe bya PCB.
Mu myaka yashize, umubare wabakiriya bakeneye imbaho ndende za Tg ziyongereye buri mwaka.
Ubumenyi bwibikoresho bya PCB nubuziranenge (2007/05/06 17:15)
Kugeza ubu, hari ubwoko bwinshi bwibibaho bikozwe mu muringa bikoreshwa cyane mu gihugu cyanjye, kandi ibiranga byerekanwe ku mbonerahamwe ikurikira: ubwoko bwibibaho bikozwe mu muringa, ubumenyi bwimbaho zometseho umuringa.
Hariho uburyo bwinshi bwo gutondekanya umuringa wambaye umuringa.Mubisanzwe, ukurikije ibikoresho bitandukanye bishimangira ikibaho, birashobora kugabanywamo: impapuro, umusingi wigitambara cyibirahure fibre pcb,
Urufatiro rwibanze (CEM ikurikirana), urumuri rwinshi rwibanze rwibibaho hamwe nibikoresho byihariye (ceramic, base base base, nibindi) ibyiciro bitanu.Niba ikoreshwa ninama _) (^ $ RFSW # $% T.
Ibikoresho bitandukanye bya resin byashyizwe mubikorwa, impapuro zisanzwe zishingiye kuri CCI.Yego: resin ya fenolike (XPC, XxxPC, FR-1, FR
-2, nibindi), epoxy resin (FE-3), polyester resin nubundi bwoko.Ikirahuri gisanzwe cya fibre fibre base CCL ifite epoxy resin (FR-4, FR-5), kuri ubu ni ubwoko bukoreshwa cyane mubirahuri bya fibre fibre.Mubyongeyeho, hari nibindi bisigarira bidasanzwe (umwenda wibirahure, fibre polyamide, imyenda idoda, nibindi nkibikoresho byongeweho): bismaleimide yahinduwe triazine resin (BT), resin polyimide (PI), Diphenylene ether resin (PPO), maleic anhydride imine-styrene resin (MS), resin polycyanate, resine polyolefin, nibindi. Ukurikije imikorere ya flame retardant ya CCL, irashobora kugabanywamo ubwoko bubiri bwibibaho: flame retardant (UL94-VO, UL94-V1) na non- flame retardant (UL94-HB).Mu myaka imwe cyangwa ibiri ishize, hibandwa cyane cyane ku kurengera ibidukikije, ubwoko bushya bwa CCL butarimo brom bwatandukanijwe na flame-retardant CCL, ishobora kwitwa "green flame-retardant CCL".Hamwe niterambere ryihuse ryibikoresho bya elegitoroniki, haribisabwa hejuru ya cCL.Kubwibyo, uhereye kumikorere ya CCL, igabanijwe mubikorwa rusange CCL, dielectric ihoraho ya CCL, irwanya ubushyuhe bwinshi CCL (muri rusange L yubuyobozi iri hejuru ya 150 ° C), hamwe na coefficient CCL yo kwagura ubushyuhe (muri rusange ikoreshwa kuri gupakira substrates)) nubundi bwoko.Hamwe niterambere hamwe niterambere ryiterambere ryikoranabuhanga rya elegitoronike, ibisabwa bishya bihora bishyirwa imbere kubikoresho byanditse byanditseho ibikoresho, bityo bigateza imbere iterambere ryikomeza ryumuringa wambaye umuringa.Kugeza ubu, ibipimo ngenderwaho byibikoresho bya substrate nibi bikurikira.
Standards Ibipimo by’igihugu Kugeza ubu, igihugu cy’igihugu cyanjye mu rwego rwo gushyira mu byiciro ibikoresho by’ibikoresho bya pcb birimo GB / T4721-47221992 na GB4723-4725-1992.Igipimo cyambaye umuringa cyambaye laminates muri Tayiwani, Ubushinwa nicyo gipimo cya CNS, gishingiye ku gipimo cy’Ubuyapani JIs., yarekuwe mu 1983. gfgfgfggdgeeeejhjj
Standard Ibipimo nyamukuru byandi mahame yigihugu ni: JIS igipimo cyUbuyapani, ASTM, NEMA, MIL, IPc, ANSI, UL igipimo cy’Amerika, Bs igipimo cy’Ubwongereza, DIN na VDE cyo mu Budage, NFC na UTE y'Ubufaransa, CSA yo muri Kanada Ibipimo, AS yo muri Ositaraliya, icyahoze ari Leta Zunze Ubumwe z'Abasoviyeti, FOCT mpuzamahanga, IEC mpuzamahanga, n'ibindi.
Abatanga ibikoresho byumwimerere bya PCB bakunze gukoreshwa nabantu bose: Shengyi \ Jiantao \ International, nibindi.
Inyandiko zemewe: protel autocad powerpcb orcad gerber cyangwa ikopi ikomeye, nibindi.
Type Ubwoko bw'isahani: CEM-1, CEM-3 FR4, ibikoresho bya TG bihanitse;
Size Ingano ntarengwa y'ubutegetsi: 600mm * 700mm (24000mil * 27500mil)
Ness Gutunganya ikibaho cyububiko: 0.4mm-4.0mm (15.75mil-157.5mil)
Inzira ntarengwa yo gutunganya: 16Abalayiki
Enc Uburebure bw'umuringa wuzuye: 0.5-4.0 (oz)
● Kwihanganira isahani yuzuye: +/- 0.1mm (4mil)
Erance Kwihanganira ibipimo byerekana: Gusya mudasobwa: 0.15mm (6mil) Gupfa kashe: 0.10mm (4mil)
Ubugari ntarengwa bwagutse / intera: 0.1mm (4mil) Ubushobozi bwo kugenzura umurongo: ＜ + - 20%
Diameter Ntarengwa yo gucukura diameter yibicuruzwa byarangiye: 0,25mm (10mil)
Kurangiza byibuze umwobo wa diameter: 0.9mm (35mil)
Kwihanganira umwobo urangiye: PTH: + -0.075mm (3mil)
NPTH: + -0.05mm (2mil)
Wall Umwobo wuzuye urukuta rw'umuringa: 18-25um (0.71-0.99mil)
P Ikibanza gito cya SMT: 0.15mm (6mil)
Ating Igipfundikizo cy'ubutaka: zahabu yo kwibiza mu miti, HASL, ikibaho cyose cyometseho zahabu (amazi / zahabu yoroshye), ecran ya silike yubururu, nibindi.
Enc Ubugari bwa mask ya Solder ku kibaho: 10-30 mm (0.4-1.2mil)
Strength Imbaraga zishishwa: 1.5N / mm (59N / mil)
Mas Gukomera kwa masike gukomera: ＞ 5H
Capacity Ubushobozi bwo gucomeka ibicuruzwa: 0.3-0.8mm (12mil-30mil)
Constant Dielectric ihoraho: ε = 2.1-10.0
Resistance Kurwanya insulation: 10KΩ-20MΩ
Imp Impedance iranga: 60 ohm ± 10 ％
Shock Ubushuhe bukabije: 288 ℃, amasegonda 10
Urupapuro rwibibaho byarangiye: <0.7%
Application Gukoresha ibicuruzwa: ibikoresho byitumanaho, ibikoresho bya elegitoroniki, ibikoresho, sisitemu yo kwisi yose, mudasobwa, MP4, amashanyarazi, ibikoresho byo murugo, nibindi.
Igihe cyo kohereza: Werurwe-30-2023