Pcb kugadzirisa prototype bhodhi 94v-0 Halogen-isina redunhu bhodhi
Kutsanangurwa kweChigadzirwa:
| Base Material: | FR4 TG140 |
| PCB Ukobvu: | 1.6+/-10%mm |
| Layer Count: | 2L |
| Hukobvu hwemhangura: | 1/1 oz |
| Surface treatment: | HASL-LF |
| Solder mask: | Glossy green |
| Silkscreen: | Chena |
| Special process : | Standard, Halogen-isina redunhu bhodhi |
Application
Chiyero chemoto chebhodhi redunhu rakadhindwa rinoreva moto webhodhi.Mabhodhi edunhu akadhindwa anowanzo kugadzirwa negirazi fiber zvinhu zvine moto chiyero cheFR-4.Ichi chinyorwa chine moto wepamusoro uye chinogona kudzivirira moto kusvika pamwero wakati.Ehezve, zvinoenderana nezvinhu zvakaita sezvinodiwa zvekushandisa uye zvinodiwa zvekuchengetedza, chiyero chemoto cheakadhindwa edunhu mabhodhi anogona zvakare kutora zvimwe zvinhu zvakasiyana uye zviyero.
Iyo chaiyo chiyero cheUL94v0 ndechekuti bhodhi redunhu rasvika pachiyero chinodzoreredza moto.ul94 zvishandiso uye zvekushandisa zvinopisa bvunzo yemidziyo yepurasitiki, ine zita rakajairwa, chiyero chekushandisa, giredhi kupatsanurwa, zvine hukama zviyero, nezvimwe. UL94 Plastic zvinhu combustion bvunzo - Chikamu:
1) HB level: Horizontal Burning Test
2) V0-V2 nhanho: Vertical Burning Test Vertical kupisa bvunzo
Iyo giredhi rinodzoreredza moto remapurasitiki rinowedzera kubva kuHB, V-2, V-1 kuenda kuV-0 nhanho nhanho:
UL 94 (Kupisa bvunzo yepurasitiki zvinhu)
HB: Iyo yakaderera murazvo retardant giredhi muUL94 standard.Pamasampuli 3 kusvika 13 mm mukobvu, pisa nechiyero chiri pasi pe40 mm paminiti uye yesampuli 3 mm mukobvu, pisa nechiyero chisingasviki 70 mm paminiti kana kudzima pamberi pe100 mm mark.
V-2: Murazvo wakadzima mukati memasekonzi makumi matatu mushure mebvunzo mbiri dzekupisa kwegumi-yechipiri yemuenzaniso.Inogona kubatidza 30cm donje.
V-1: Murazvo wakadzima mukati memasekonzi makumi matatu mushure mebvunzo mbiri dzekupisa kwegumi-yechipiri yemuenzaniso.Usabatidze 30cm yekotoni.
V-0: Murazvo unodzima mukati memasekondi gumi mushure mebvunzo mbiri dzegumi-sekondi gumi pamuenzaniso.
Zvinoenderana negiredhi regiredhi kubva pasi kusvika pachikamu chepamusoro sezvinotevera: 94HB/94VO/22F/ CIM-1/CIM-3/FR-4, hunhu hunodzoreredza moto wechikamu chegiredhi chinogona kukamurwa kuita 94V-0 / V- 1 /V-2, 94-HB mana marudzi;94HB: yakajairika bhodhi, hapana moto (yakaderera giredhi zvinhu, kufa punching, haigone kuita bhodhi remagetsi) 94V0: murazvo unodzoreredza bhodhi (kufa punching) 22F: single-side hafu yegirazi fiber board (kufa punching) CIM-1: single- padivi girazi faibha bhodhi (inofanira kunge iri kuchera komputa, haigone kufa ichibaya) CIM-3: Kaviri mativi hafu yegirazi fiber board FR-4: kaviri mativi girazi fiber bhodhi
Kunyanya kusimbiswa ndeyese mabhodhi eShenzhen Lianchuang Electronics Co., Ltd, moto wemoto unosangana ne94v-0!
Halogen-isina mabhodhi eakadhindwa edunhu mabhodhi anoreva kune halogen-isina zvinhu zvinoshandiswa mukugadzirwa kweakadhindwa edunhu mabhodhi.Halogen-isina zvinhu zvinoreva zvinhu zvisina halogen zvinhu zvakaita seklorini uye bromine.Ichi chinyorwa chine hushamwari kwezvakatipoteredza uye chakachengeteka kupfuura zvechinyakare halogen-ine zvinhu, uye inogona kuderedza kukuvadza kune zvakatipoteredza uye muviri wemunhu.Mune dzimwe nyika nematunhu, kushandiswa kwehalogen-isina zvinhu kugadzira akadhindwa edunhu mabhodhi kwave kuri pamutemo chinodiwa kana indasitiri mwero kusimudzira budiriro inoenderera uye kuchengetedza kwezvakatipoteredza.
FAQs
Ruzhinji rwePCBs rwakaiswa seFR-4, zvichiratidza kuti vanosangana nemamwe maitiro ekuita, pamwe neV0 zvinodiwa zveUL (Underwriters Laboratories) 94 flammability test standard.
UL 94 inoshandiswa kuyera mwero wekupisa uye hunhu hunoenderana neakajairwa masampuli.Saizi yemuenzaniso ndeye 12.7mm ne127mm, nehukobvu hunosiyana kubva pa0.8mm kusvika 3.2mm.
Iyo halogen yemahara PCB ibhodhi rakadhindwa redunhu rine mashoma halogen zvinhu.Zvinhu zvikuru zvehalogen zvinouraya kuhupenyu chlorine, fluorine, bromine, astatine, uye iodine.Halogen yemahara PCB ine isingasviki 900 ppm yebromine kana chlorine.Zvakare, iyo bhodhi ine isingasviki 1500 ppm yezvinhu zvehalogen.
Uyezve, ma halogens anokanganisa kunaka kwemhepo nekusimudzira kuumbwa kweozone.Padanho repasi, ozone inosvibisa (& greenhouse gasi) uye kuratidzwa kwenguva refu kunogona kutungamira kuzvirwere zvekufema, kusanganisira asima, uye zvinokuvadza zvirimwa.
Alkali simbi uye halogens hazviitike mahara muzvisikwa nekuti zvinonyanya kuita.Zvinoitika mumubatanidzwa.
