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The eye-of-the-needle (EON) press-fit terminal, yomwe idapangidwa kuti isinthe ma terminals ogulitsidwa pama board osindikizidwa, yakhala ikupanga pamsika kwazaka zopitilira khumi mumitundu ya 0.64mm ndi 0.81mm.
Momwe Press-fit Imagwirira Ntchito
EON press-fit zone ndiyodziwikiratu pakuwonetsetsa kuti pali kulumikizana kodalirika pakati pa terminal ndi plated-through-hole (PTH) ya bolodi yosindikizidwa (PCB) pansi pakugwiritsa ntchito kwambiri magalimoto.Ntchitozi zikuphatikiza kuyendetsa njinga zamoto kuyambira -40ᴼC mpaka 175ᴼC, chinyezi chambiri, kutentha kowuma, kugwedezeka ndi kuuma komwe kumayenderana ndi kuphukira kwagalimoto.
Chinsinsi cha kukwaniritsa kudalirika pansi pazimenezi ndi kupanga chisindikizo cholimba cha gasi pamawonekedwe apakati pa malo ovomerezeka a terminal ndi pled-through-hole.Mawonekedwe olumikizana nawo amatsekedwa kuchokera kumadera ozungulira kotero kuti sangalowedwe ndi chinyezi chambiri kapena zowononga mpweya wowononga, motero sapezeka kuti apange ma oxides apamtunda.Ma okosijeni ndi omwe amachititsa kuti anthu asagwirizane kwambiri, zomwe zingayambitse kusakhazikika kwadongosolo komanso kulephera kwadongosolo.
Chisindikizo cholimba kwambiri cha gasi chimasungidwa ndi mphamvu zapamwamba zomwe zimachokera kuzungulira 25,000g.0.81mm Press-fit to around 4,000g for 0.40mm press-fit.(The 0.64mm press-fit clocks in around 8,000g.) [Mawotchi onse otchulidwa bwino ndi a kukula kwa PTH, ndi machitidwe a malata.] Izi ndi mphamvu zamba zapamwamba kwambiri, poyerekeza ndi mphamvu zapakati pa 100g ndi 200g kwa njira yolumikizirana ndi blade-receptacle malata.
0.4mm Press-fit
Malo atsopano a 0.4mm EON press-fit zone adapangidwa kuti azigwira ntchito ndi makulidwe apamabowo omwe tsopano ali ndi 0.60±0.05mm.Malo osindikizira-fit amapeza mphamvu zosungirako bwino kumapeto kwa kukula kwa PTH pogwiritsa ntchito kuphatikiza kwa zotanuka ndi pulasitiki, zomwe zimakondera zakale kumapeto kwa kukula kwa PTH, ndi kumapeto kwa msinkhu wa PTH. mapeto a kukula kwa PTH.Palibe nthawi yomwe elongation imaloledwa kupitilira malire azinthu, kuthetsa kuthekera kwa mapangidwe ang'onoang'ono.
Zinthu zokhazikika zosindikizira ku CuNiSi (C19010), koma zidzapereka CuSn4 ndi CuSn6 ngati zingafunike.Kuphatikiza apo, terminal idzaperekedwa muyeso wamba komanso wocheperako wa malata.Zotsirizirazi ndizofunika kwambiri pamapulogalamu ogwiritsira ntchito kwambiri kuti muchepetse mwayi wowombera malata.
Nthawi yotumiza: Jun-22-2022