PCB taron, layin rarraba V-dimbin yawa tsakanin veneers biyu da veneers da gefen tsari, a cikin siffar "V";
Bayan walda, sai ya karye, don haka ake kiransa V-CUT.
Manufar V-cut
Babban manufar zayyana V-cut shine don sauƙaƙe mai aiki don raba allon bayan an haɗa allon kewayawa.Lokacin da aka raba PCBA, ana amfani da injin V-Cut Scoring gabaɗaya don yanke PCB a gaba tare da tsagi mai siffar V.Buga zagayen ruwa na Huai Scoring, sannan kuma tura shi da ƙarfi, wasu injina suna da ƙira ta atomatik na ciyarwar allo, muddin maɓalli, ruwan wuka zai motsa ta atomatik kuma ya yanke allon ta wurin V-Cut na allon kewayawa, tsayi. na ruwa Ana iya daidaita shi sama da ƙasa don dacewa da kauri na V-Cuts daban-daban.
Tunatarwa: Baya ga Maki na V-Cut, akwai wasu hanyoyin don PCBA sub-board, kamar kewayawa, ramin tambari, da sauransu.
Ko da yake V-Cut akan PCB kuma ana iya karyewa da hannu ko karye a matsayin V-Cut, ana ba da shawarar kada a karye ko karya V-Cut da hannu, saboda ma'aunin ƙarfi zai shafe shi da hannu. PCB yana lanƙwasa, wanda zai iya sa sassa na lantarki akan PCBA cikin sauƙi su tsattsage, musamman sassan capacitor, wanda zai rage yawan amfanin ƙasa da amincin samfurin.Wasu matsalolin zasu bayyana a hankali ko da bayan lokacin amfani.
V-Yanke ƙira da ƙuntata amfani
Kodayake V-Cut na iya sauƙaƙe mana sauƙi don raba allon da cire gefuna na allo, V-Cut kuma yana da ƙira da ƙuntatawa na amfani.
1. V-Cut na iya yanke madaidaiciyar layi kawai kuma yanke zuwa ƙarshen.Wato V-Cut na iya yanke cikin layi kawai kuma a yanke kai tsaye daga farkon zuwa ƙarshe.Ba zai iya juyawa ya canza alkibla ba, kuma ba zai iya yanke ɗan guntun sashe kamar zaren tela ba.Tsallake ɗan gajeren sakin layi.
2. Kaurin PCB yana da bakin ciki sosai kuma bai dace da tsagi na V-Cut ba.Gabaɗaya, idan kauri na allon bai wuce 1.0mm ba, V-Cut ba a ba da shawarar ba.Wannan saboda V-Cut tsagi zai lalata ƙarfin tsarin PCB na asali., Lokacin da akwai sassa masu nauyi da aka sanya a kan jirgin da aka tsara tare da V-Cut, allon ya zama mai sauƙi don lankwasa saboda dangantaka da nauyi, wanda ba shi da kyau ga aikin walda na SMT (mai sauƙi don haifar da walƙiya mara kyau ko gajeren kewaye).
3. Lokacin da PCB ya wuce ta cikin babban zafin jiki na reflow tanda, hukumar da kanta za ta yi laushi da kuma lalacewa saboda high zafin jiki ya wuce gilashin canji zafin jiki (Tg).Idan ba a tsara matsayi na V-Cut da zurfin tsagi da kyau ba, nakasar PCB zai fi tsanani., Ba shi da kyau ga tsarin sake dawowa na biyu.
Ma'anar kusurwa na V-Cut
Gabaɗaya magana, V-Cut yana da kusurwoyi uku na 30°, 45° da 60° waɗanda za a iya ayyana su.Mafi yawan amfani shine 45 °.
Mafi girman kusurwar V-Cut, yawancin faranti V-Cut ke cin gefen allon, kuma da'irar da ke kan PCB ɗin dole ne a ƙara ja da baya don guje wa yanke ta V-Cut ko yanke V. -Lalacewa idan aka yanke.
Karamin kusurwar V-Cut, mafi kyawun ƙirar sararin samaniya na PCB bisa ka'ida, amma ba shi da kyau ga rayuwar V-Cut saw ruwan wukake na masana'anta na PCB, saboda ƙaramin kusurwar V-Cut, ƙari. ruwa na lantarki saw.Mafi qarancinsa, da sauƙin sawa da karya ruwan ruwansa.