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ʻO ka pahu paʻi paʻi maka o ka nila (EON), i hoʻolālā ʻia e hoʻololi i nā pahu kūʻai ma nā papa kaapuni i paʻi ʻia, ua hana ʻia ma ka mākeke no nā makahiki he ʻumi ma nā mana 0.64mm a me 0.81mm.
Pehea e hana ai ka Press-fit
He mea kaulana ka EON press-fit zone no ka hōʻoia ʻana i ka pilina paʻa ma waena o ka pahu a me ka plated-through-hole (PTH) o kahi papa kaapuni paʻi (PCB) ma lalo o nā noi kaʻa koʻikoʻi.Loaʻa kēia mau noi i ka holo kaʻa wela mai -40ᴼC a i 175ᴼC, ka haʻahaʻa kiʻekiʻe, ka wela maloʻo, a me ka haʻalulu a me ka paʻakikī e pili ana i nā kūlana sprung kaʻa.
ʻO ke kī i ka loaʻa ʻana o ka hilinaʻi ma lalo o kēia mau kūlana ʻo ia ka hoʻokumu ʻana i kahi sila paʻa kinoea ma ke kikowaena ma waena o ka ʻāpana kūpono o ka terminal a me ka plated-through-hole.Hoʻopaʻa maoli ʻia ka pilina pili mai ke kaiapuni a hiki i ka hiki ʻole ke hiki i ka haʻahaʻa haʻahaʻa a i ʻole nā mea hoʻohaumia kinoea corrosive, a no laila ʻaʻole i loaʻa no ka hoʻokumu ʻana i nā oxides.ʻO nā oxides ke kuleana no ka hoʻoulu ʻana i ke kūpaʻa hoʻopili kiʻekiʻe, hiki ke alakaʻi i ka paʻa ʻole o ka ʻōnaehana a hiki ʻole paha i ka ʻōnaehana.
Mālama ʻia ka sila paʻa kinoea e nā ikaika maʻamau kiʻekiʻe mai ka 25,000g.0.81mm press-fit a puni 4,000g no 0.40mm press-fit.(ʻO ka 0.64mm press-fit nā uaki ma kahi o 8,000g.) [ʻO nā mana maʻamau i ʻōlelo ʻia no nā nui PTH nominal, a no nā ʻōnaehana tin.] He mau ikaika maʻamau kiʻekiʻe loa kēia, ke hoʻohālikelike ʻia me nā ikaika maʻamau ma waena o 100g a me 200g no kahi ʻōnaehana hoʻopaʻa pahu maʻamau maʻamau.
ʻO ka 0.4mm Press-fit
Hoʻolālā ʻia ka 0.4mm EON press-fit zone hou loa e hana me ka nui o 0.60±0.05mm maʻamau o ka ʻoihana i kēia manawa.Loaʻa i ka ʻāpana press-fit ka ikaika hoʻopaʻa maikaʻi loa ma kēlā me kēia hopena o ka nui PTH ma o ka hoʻohana ʻana i ka hui ʻana o ka elastic a me ka plastic deformation, i hoʻohālikelike ʻia i ka mua ma ka ʻaoʻao haʻahaʻa o ka nui PTH, a i ka hope ma ke kiʻekiʻe. hope o ka nui PTH.ʻAʻole ʻae ʻia ka elongation e ʻoi aku ma mua o ka palena waiwai, e hoʻopau i ka likelihood o ka hoʻokumu ʻana o micro-crack.
Nā mea paʻi paʻi maʻamau i ka CuNiSi (C19010) kiʻekiʻe, akā e hāʻawi iā CuSn4 a me CuSn6 inā pono.Hoʻohui ʻia, e hāʻawi ʻia ka terminal i ka maʻamau a me ka hoʻohaʻahaʻa tin plating.He mea pili loa ka mea hope i nā noi terminal kiʻekiʻe e hōʻemi i ka hiki ʻana o ka whiskering tin.
Ka manawa hoʻouna: Iune-22-2022