ʻO ke kaʻina hana SMD he kaʻina hoʻāʻo hiki ʻole ke pale aku, ʻo SPI (Solder Paste Inspection) ke kaʻina hana SMD he hana hoʻāʻo, hoʻohana ʻia e ʻike i ka maikaʻi o ka paʻi paʻi solder maikaʻi a maikaʻi ʻole paha.No ke aha ʻoe e pono ai i nā lako spi ma hope o ka paʻi ʻana i ka paʻi solder?No ka mea, ʻo ka ʻikepili mai ka ʻoihana e pili ana i ka 60% o ka maikaʻi kūʻai aku ma muli o ka paʻi ʻana i ka paʻi solder maikaʻi ʻole (ʻo ke koena e pili ana i ka patch, reflow process).
ʻO SPI ka ʻike ʻana i ka paʻi paʻi solder maikaʻi ʻole,Mīkini SMT SPIaia ma ke kua o ka mīkini paʻi solder paste, i ka wā e paʻi ai ka solder paste ma hope o ka paʻi ʻana i kahi ʻāpana o ka pcb, ma o ka hoʻopili ʻana o ka papa ʻaina conveyor i nā lako hoʻāʻo SPI e ʻike i kona ʻano paʻi pili.
Hiki iā SPI ke ʻike i nā pilikia ʻino?
1. Inā paha he pīni ka paʻi solder
Hiki iā SPI ke ʻike inā ʻo ka solder paste i ka mīkini paʻi paʻi ʻana, inā pcb e pili ana i nā pads a me ka tin, hiki ke alakaʻi i ka pōkole pōkole.
2. Hoʻopili i ka offset
ʻO ka hoʻopili paʻi solder ʻo ia hoʻi, ʻaʻole i paʻi ʻia ka paʻi solder paste ma nā pad pcb (a i ʻole ʻāpana wale nō o ka paʻi solder i paʻi ʻia ma nā pad), ʻo ka offset paʻi solder paʻi e alakaʻi i ke kūʻai ʻole ʻana a i ʻole ke kia hoʻomanaʻo kū a me nā ʻano maikaʻi ʻole.
3. E ʻike i ka mānoanoa o ka paʻi solder
ʻIke ʻo SPI i ka mānoanoa o ka solder paste, i kekahi manawa ʻoi aku ka nui o ka solder paste, i kekahi manawa he liʻiliʻi ka nui o ka solder paste, ʻo kēia kūlana ke kumu o ka welding soldering a i ʻole nā weld welding.
4. ʻIke i ka palahalaha o ka paʻi solder
ʻIke ʻo SPI i ka palahalaha o ka paʻi solder, no ka mea e hoʻopau ʻia ka mīkini paʻi paʻi solder ma hope o ka paʻi ʻana, e ʻike ʻia kekahi e huki i ka piko, i ka wā ʻaʻole like ka palahalaha, maʻalahi ke kumu i nā pilikia o ka maikaʻi.
Pehea e ʻike ai ka SPI i ka maikaʻi o ka paʻi?
ʻO SPI kekahi o nā mea ʻike maka, akā ma o ka optical a me ka lolouila ʻōnaehana algorithms e hoʻopau ai i ke kumu o ka ʻike, solder paste paʻi, spi ma o ka lens pahupaʻi kūloko ma ka ʻili o ke kāmela e unuhi i ka ʻikepili, a laila synthesized ka ʻike algorithm. ʻike kiʻi, a laila me ka ʻikepili ok sample no ka hoʻohālikelike ʻana, ke hoʻohālikelike ʻia i ka ok a hiki i ka maʻamau e hoʻoholo ʻia ma ke ʻano he papa maikaʻi, ke hoʻohālikelike ʻia me ka ok ʻaʻole i hoʻopuka ʻia kahi puʻupuʻu, hiki i nā technicians ke hiki ke hoʻopau pololei i ka hemahema. nā papa mai ke kāʻei conveyor
No ke aha e kaulana nui ai ka nānā ʻana iā SPI?
Ua ʻōlelo wale ʻia ʻo ka probability o ka welding ʻino ma muli o ka paʻi ʻana o ka solder paste i ʻoi aku ma mua o 60%, inā ʻaʻole ma hope o ka hoʻāʻo spi e hoʻoholo i ka maikaʻi ʻole, pono ia ma hope o ka patch, reflow soldering kaʻina, i ka pau ʻana o ka welding a laila ma hope o ka aoi. ho'āʻo i loaʻa hewa, ma kekahi lima, e oi aku ka ino o ka malama ana i ka degere o ka pilikia ma mua o ka spi e hooholo i ka manawa o ka pilikia ino (SPI hookolokolo o ka ino paʻi, pololei mai ka conveyor kāʻei e lawe i lalo, holoi i ka paʻi) , ma ka ʻaoʻao ʻē aʻe, ma hope o ke kuʻi ʻana, hiki ke hoʻohana hou ʻia ka papa ʻino, a ma hope o ke kuʻi ʻana, hiki i ka technician ke lawe pololei i ka papa ʻino mai ke kāʻei conveyor.Hiki ke hoʻohana hou ʻia), ma waho aʻe o ka mālama ʻana i ka welding e hoʻonui i ka hoʻopau ʻana i nā limahana, nā waiwai a me nā waiwai kālā.
Ka manawa hoʻouna: ʻOkakopa-12-2023