Pcb ua qauv board 94v-0 Halogen-dawb circuit board
Khoom Specification:
| Khoom siv hauv paus: | FR4 TG 140 |
| PCB Thickness: | 1.6 +/- 10% mm |
| Txheej suav: | 2L |
| Copper Thickness: | 1/1 oz |
| Kev kho deg: | HASL-LF |
| Solder Mask: | Glossy ntsuab |
| Silkscreen: | Dawb |
| Cov txheej txheem tshwj xeeb: | Standard, Halogen-dawb Circuit Court board |
Daim ntawv thov
Qhov ntsuas hluav taws kub ntawm lub rooj tsav xwm luam tawm yog hais txog qhov ntsuas hluav taws kub ntawm lub rooj tsavxwm.Cov ntawv luam tawm Circuit Board feem ntau yog ua los ntawm cov iav fiber ntau nrog qhov ntsuas hluav taws kub ntawm FR-4.Cov khoom no muaj qhov ntsuas hluav taws kub siab thiab tuaj yeem tiv thaiv hluav taws rau qee yam.Tau kawg, raws li cov yam ntxwv xws li cov ntawv thov thiab cov kev xav tau ntawm kev nyab xeeb, qhov ntsuas hluav taws kub ntawm cov ntawv luam tawm hauv Circuit Court kuj tuaj yeem txais lwm cov ntaub ntawv sib txawv thiab cov qauv.
Cov txheej txheem tshwj xeeb ntawm UL94v0 yog tias lub rooj tsav xwm hauv Circuit Court tau mus txog tus qauv hluav taws kub retardant.ul94 cov khoom siv thiab cov khoom siv hluav taws xob ntsuas cov khoom siv yas, nrog lub npe tus qauv, qhov kev thov, kev faib qib, cov qauv muaj feem xyuam, thiab lwm yam. UL94 Cov khoom siv hluav taws xob combustion test - Classification:
1) HB theem: Kab rov tav Hlawv Hlawv
2) V0-V2 qib: Vertical Burning Test Vertical burning test
Cov nplaim retardant qib ntawm cov yas nce los ntawm HB, V-2, V-1 mus rau V-0 kauj ruam yog kauj ruam:
UL 94 (Flammability Test rau cov ntaub ntawv yas)
HB: Cov nplaim hluav taws kub qis tshaj plaws hauv UL94 tus qauv.Rau cov qauv 3 mus rau 13 mm tuab, hlawv ntawm tus nqi tsawg dua 40 mm ib feeb thiab rau cov qauv 3 mm tuab, hlawv ntawm tus nqi tsawg dua 70 mm ib feeb lossis tua ua ntej lub cim 100 mm.
V-2: nplaim taws tua tsis pub dhau 30 vib nas this tom qab ob 10-thib ob combustion xeem ntawm tus qauv.Nws tuaj yeem cuam tshuam 30cm paj rwb.
V-1: nplaim taws tua tsis pub dhau 30 vib nas this tom qab ob 10-thib ob combustion xeem ntawm tus qauv.Tsis txhob hlawv 30 cm paj rwb.
V-0: Cov nplaim hluav taws raug tua tsis pub dhau 10 vib nas this tom qab ob qhov kev ntsuam xyuas 10-thib ob ntawm cov qauv
Raws li qib qib los ntawm hauv qab mus rau qhov siab faib raws li hauv qab no: 94HB / 94VO / 22F / CIM-1 / CIM-3 / FR-4, nplaim hluav taws kub nyhiab ntawm qib faib tau muab faib ua 94V-0 / V- 1 /V-2, 94-HB plaub yam;94HB: board zoo tib yam, tsis muaj hluav taws kub (cov khoom siv qis tshaj plaws, tuag xuas nrig ntaus, tsis tuaj yeem ua lub hwj chim board) 94V0: nplaim taws retardant board (tuag xuas nrig ntaus) 22F: ib sab ib nrab iav fiber ntau board (tuag xuas nrig ntaus) CIM-1: ib leeg- Sab iav fiber ntau pawg thawj coj saib (yuav tsum yog lub computer drilling, tsis tuaj yeem tuag xuas nrig ntaus) CIM-3: Ob chav sided ib nrab iav fiberboard FR-4: ob chav sided iav fiber board
Tshwj xeeb tseem ceeb yog tag nrho cov boards ntawm Shenzhen Lianchuang Electronics Co., Ltd, hluav taws kev ntsuam xyuas raws li 94v-0!
Halogen-dawb boards rau cov ntawv luam tawm Circuit Court boards xa mus rau cov ntaub ntawv tsis muaj halogen siv hauv kev tsim cov ntawv luam tawm.Cov ntaub ntawv tsis muaj halogen xa mus rau cov ntaub ntawv uas tsis muaj halogen cov ntsiab lus xws li chlorine thiab bromine.Cov khoom siv no yog ib puag ncig zoo thiab muaj kev nyab xeeb dua li cov khoom siv halogen ib txwm muaj, thiab tuaj yeem txo qhov kev puas tsuaj rau ib puag ncig thiab tib neeg lub cev.Hauv qee lub tebchaws thiab cheeb tsam, kev siv cov ntaub ntawv tsis muaj halogen los tsim cov ntawv luam tawm hauv Circuit Court tau dhau los ua kev cai lij choj lossis cov qauv kev lag luam los txhawb kev tsim kho kom ruaj khov thiab kev tiv thaiv ib puag ncig.
FAQs
Feem ntau ntawm PCBs raug cais raws li FR-4, qhia tias lawv ua tau raws li qee yam kev ua tau zoo, nrog rau V0 qhov yuav tsum tau ua ntawm UL (Underwriters Laboratories) 94 flammability test standard.
UL 94 yog siv los ntsuas qhov kub thiab txias raws li cov qauv qauv.Qauv loj yog 12.7mm los ntawm 127mm, nrog lub thickness txawv ntawm 0.8mm mus rau 3.2mm.
Lub halogen dawb PCB yog lub rooj tsav xwm luam tawm uas muaj cov ntsiab lus halogen tsawg.Lub ntsiab halogen uas ua rau tuag taus rau lub neej yog chlorine, fluorine, bromine, astatine, thiab iodine.Lub PCB tsis muaj halogen muaj tsawg dua 900 ppm ntawm bromine lossis chlorine.Tsis tas li ntawd, lub rooj tsavxwm muaj tsawg dua 1500 ppm ntawm cov khoom siv halogen.
Dab tsi ntxiv, halogens degrade huab cua zoo los ntawm kev txhawb nqa ozone tsim.Nyob rau hauv pem teb, ozone yog cov pa phem (& tsev xog paj gas) thiab kev raug ncua ntev tuaj yeem ua rau mob ua pa, nrog rau mob hawb pob, thiab ua rau cov qoob loo puas tsuaj.
Alkali hlau thiab halogens tsis tshwm sim dawb nyob rau hauv cov xwm vim hais tias lawv yog heev reactive.Lawv tshwm sim nyob rau hauv ib lub xeev ua ke.
