Pcb sarrafa samfurin jirgin 94v-0 Halogen-free kewaye allon
Ƙayyadaddun samfur:
| Tushen Material: | Saukewa: FR4TG140 |
| Kauri PCB: | 1.6 +/- 10% mm |
| Ƙididdigar Layer: | 2L |
| Kaurin Copper: | 1/1 oz |
| Maganin saman: | HASL-LF |
| Mashin solder: | Koren mai sheki |
| Silkscreen: | Fari |
| Tsari na musamman: | Standard, allon kewayawa mara-halogen |
Aikace-aikace
Ƙididdigar wuta na allon da'irar da aka buga yana nufin ƙimar wutar lantarki.Ana yin allunan da'ira da aka buga galibi da kayan fiber gilashi tare da ƙimar wuta na FR-4.Wannan abu yana da ƙimar wuta mai girma kuma yana iya hana gobara zuwa wani matsayi.Tabbas, bisa ga dalilai kamar buƙatun aikace-aikace da buƙatun aminci, ƙimar wuta na allon da'irar da aka buga kuma na iya ɗaukar wasu kayayyaki da ƙa'idodi daban-daban.
Ƙayyadaddun ƙayyadaddun ƙayyadaddun UL94v0 shine cewa hukumar da'irar ta kai ma'auni na kashe wuta.UL94 kayan aiki da kayan aikin ƙona gwajin kayan filastik, tare da daidaitaccen suna, iyakar aikace-aikacen, rarrabuwa, ƙa'idodi masu alaƙa, da sauransu.
1) matakin HB: Gwajin ƙonewa a kwance
2) Matakin V0-V2: Gwajin Ƙunƙarar Ƙunƙara a tsaye
Matsayin riƙe wuta na robobi yana ƙaruwa daga HB, V-2, V-1 zuwa V-0 mataki-mataki:
UL 94 (gwajin flammability don kayan filastik)
HB: Mafi ƙanƙancin ƙimar jinkirin harshen wuta a daidaitaccen UL94.Don samfurori 3 zuwa 13 mm lokacin farin ciki, ƙone a cikin ƙasa da 40 mm a minti daya kuma don samfurori 3 mm lokacin farin ciki, ƙone a cikin ƙimar ƙasa da 70 mm a minti daya ko kashe kafin alamar 100 mm.
V-2: An kashe harshen wuta a cikin daƙiƙa 30 bayan gwajin konewa na daƙiƙa 10 na samfurin.Zai iya ƙone auduga 30cm.
V-1: An kashe harshen wuta a cikin daƙiƙa 30 bayan gwaje-gwajen konewa na daƙiƙa 10 na samfurin.Kada ku kunna auduga 30cm.
V-0: An kashe harshen wuta a cikin daƙiƙa 10 bayan gwajin konewa na daƙiƙa 10 akan samfurin
Dangane da matakin matakin daga ƙasa zuwa babban rabo kamar haka: 94HB/94VO/22F/ CIM-1 / CIM-3 / FR-4, ana iya raba halayen retardant na ƙimar darajar zuwa 94V-0 / V- 1 / V-2, 94-HB iri hudu;94HB: allo na yau da kullun, babu wuta (mafi ƙanƙanci kayan abu, mutuƙar buɗawa, ba zai iya yin allon wuta ba) 94V0: katako mai ɗaukar wuta (mutu bugun bugun wuta) 22F: allon gilashin rabin gilashin gefe guda (mutu buɗa) CIM-1: guda- Gilashin fiber gilashin gefen (dole ne ya zama hakowa na kwamfuta, ba zai iya mutu ba) CIM-3: Fuskar bangon gilashin gilashin gilashin FR-4: gilashin fiber panel mai gefe biyu.
Musamman girmamawa ne duk alluna na Shenzhen Lianchuang Electronics Co., Ltd, wuta rating hadu 94v-0!
Allolin da ba su da halogen don allunan da'ira da aka buga suna nufin kayan da ba su da halogen da aka yi amfani da su wajen kera allunan da'ira da aka buga.Abubuwan da ba su da halogen suna nufin kayan da ba su ƙunshi abubuwan halogen kamar chlorine da bromine ba.Wannan abu ya fi dacewa da muhalli kuma ya fi aminci fiye da kayan da ke dauke da halogen na gargajiya, kuma zai iya rage cutar da muhalli da jikin mutum.A wasu ƙasashe da yankuna, amfani da kayan da ba su da halogen don kera allunan da'ira da aka buga ya zama buƙatu na doka ko ma'aunin masana'antu don haɓaka ci gaba mai dorewa da kariyar muhalli.
FAQs
Yawancin PCBs an rarraba su azaman FR-4, yana nuna cewa sun cika wasu sharuɗɗan aiki, da kuma buƙatun V0 na UL (Underwriters Laboratories) 94 mizanin gwajin flammability.
Ana amfani da UL 94 don auna ƙimar ƙonawa da halaye dangane da daidaitattun samfuran.Girman samfurin shine 12.7mm ta 127mm, tare da kauri ya bambanta daga 0.8mm zuwa 3.2mm.
PCB na kyauta halogen allo ne da aka buga tare da iyakance abubuwan halogen.Babban abubuwan halogen waɗanda ke kashe rayuwa sune chlorine, fluorine, bromine, astatine, da aidin.PCB na kyauta na halogen yana da ƙasa da 900 ppm na bromine ko chlorine.Hakanan, hukumar tana da ƙasa da 1500 ppm na kayan halogen.
Menene ƙari, halogens suna ƙasƙantar da ingancin iska ta hanyar haɓaka samuwar sararin samaniya.A matakin ƙasa, ozone yana da gurɓatacce (& greenhouse gas) kuma tsayin daka zai iya haifar da cututtuka na numfashi, ciki har da asma, kuma yana lalata amfanin gona.
Karfe na Alkali da halogen ba sa faruwa a yanayi kyauta saboda suna da karfin gaske.Suna faruwa a cikin yanayin hade.
