Hoʻohana ʻia nā ʻano mea hana maka i ka hoʻoili ʻana i ka SMT patch. ʻO ka tinnote ka mea nui loa. ʻO ka maikaʻi o ka paʻi tin e pili pono i ka maikaʻi wili o ka hoʻoili ʻana i ka SMT patch. E koho i nā ʻano tinnuts like ʻole. E ʻae mai iaʻu e hoʻolauna pōkole i ka hoʻokaʻawale ʻana i ka paʻi tin maʻamau:
ʻO Weld paste kahi ʻano pulp e hoʻohui i ka pauka weld me kahi mea hoʻopili -like welding agent (rosin, diluent, stabilizer, etc.) me kahi hana welded. Ma ke ʻano o ke kaumaha, ʻo 80 ~ 90% nā ʻāpana metala. Ma ke ʻano o ka nui, metala a me ka solder no 50%.
Kiʻi 3 He ʻumi mau ʻōpala paʻi (SEM) (i luna)
Kiʻi 4 Kiʻi kikoʻī o ka uhi ʻili o ka pauda tin (lalo)
ʻO ka solder paste ka lawe ʻana i nā ʻāpana pauda tin. Hāʻawi ia i ka degeneration kahe kūpono a me ka haʻahaʻa e hāpai i ka lawe ʻana i ka wela i ka wahi SMT a hoʻemi i ka ʻili o ka wai ma ka weld. Hōʻike nā mea ʻokoʻa i nā hana like ʻole:
1. Hoʻokaʻawale ʻia e like me nā mea hoʻohui o ka paʻi tin
1. Lead welding paste: loaʻa i nā mea alakaʻi, he mea pōʻino i ke kaiapuni a me ke kino o ke kanaka, akā maikaʻi ka hopena wili a haʻahaʻa ke kumukūʻai. Hiki ke hoʻohana ʻia i kekahi mau huahana uila i loaʻa ʻole nā koi no ka pale ʻana i ke kaiapuni.
2. Lead-free welded paʻi: ʻO ka mea i pili i ke kaiapuni a he wahi pōʻino liʻiliʻi. Hoʻohana ʻia ia i nā huahana uila pili kaiapuni. Me ka hoʻomaikaʻi ʻana i nā koi o ka mālama ʻana i ke kaiapuni no ka pale ʻana i ke kaiapuni, e lilo ka ʻenehana alakaʻi-free i ka ʻoihana hoʻoili SMT.
2. Hoʻokaʻawale ʻia e like me ka helu heheʻe o ka paʻi tin
Ma ka ʻōlelo maʻamau, hiki ke hoʻokaʻawale ʻia ka helu heheʻe o ka paʻi tin i ʻekolu mau ʻano: ka wela kiʻekiʻe, ka wela waena, a me ka wela haʻahaʻa.
ʻO ka wela kiʻekiʻe maʻamau ka SN-G-CU 305, 0307; ʻO ka mahana waena he SN-BI-AG; ka wela haʻahaʻa i hoʻohana mau ʻia ʻo SN-BI. I ka SMT patch processing, pono ʻoe e koho e like me nā ʻano huahana like ʻole.
3. Māhele ʻia e like me ka maikaʻi o ka pauda tin
Ma muli o ke anawaena o nā ʻāpana o ka pauda tin, hiki ke hoʻokaʻawale ʻia ka paʻi tin i nā ʻulaʻula o 1, 2, 3, 4, 5, a me 6, ʻo ia ka 3, 4, a me 5 ka mea maʻamau. ʻO nā huahana ʻoi aku ka pololei, pono e liʻiliʻi ka pauka tin, akā ʻoi aku ka liʻiliʻi o ka pauka tin, e pili ana i ka wahi o ka oxidation o ka pauda tin e hoʻonui. Eia kekahi, ʻo ka pauka pōʻai pōʻai e kōkua i ka hoʻomaikaʻi ʻana i ka maikaʻi o ka paʻi ʻana.
No. 3 Fan: He maʻalahi ke kumukūʻai, hoʻohana pinepine ʻia i nā kaʻina SMT nui;
No. 4 Fan: Hoʻohana maʻamau i ka hana ʻana i nā wāwae paʻa IC a me nā pahu SMT;
Fan 5: Hoʻohana pinepine ia no nā mea hoʻoheheʻe pololei loa, nā kelepona paʻa, nā papa, a me nā mea ʻē aʻe, a me nā koi kiʻekiʻe no nā koi kiʻekiʻe; ʻoi aku ka paʻakikī o ka hana ʻana i ka huahana o ka SMT patch, ʻoi aku ka nui o ke koho ʻana o ka paʻi sacotic. Kōkua i ka hoʻomaikaʻi ʻana i ke kaʻina o ka hoʻoili ʻana i ka SMT patch.
Ka manawa hoʻouna: Iune-21-2023
