He aha ka mea e pono ai e hoʻolohe i ka wā e kūʻai ai i ka PCB?

ʻO ka soldering kekahi o nā ʻāpana koʻikoʻi o ke kaʻina hana uila uila no nā mea hana pcb.Inā ʻaʻohe hōʻoia kūpono o ke kaʻina hana kūʻai, paʻakikī nā lako uila i hoʻolālā maikaʻi ʻia e hoʻokō i nā pahuhopu hoʻolālā.No laila, i ka wā o ka welding, pono e hana ʻia nā hana aʻe:

1. ʻOiai inā maikaʻi ka weldability, pono e hoʻomaʻemaʻe ʻia ka ʻili kuʻi.

Ma muli o ka mālama ʻana i ka wā lōʻihi a me ka haumia, hiki ke hana ʻia nā kiʻiʻoniʻoni oxide ʻino, nā ʻaila hinu, a me nā mea ʻē aʻe ma ka ʻili o nā pad solder.No laila, pono e hoʻomaʻemaʻe ʻia ka ʻili ma mua o ka welding, inā ʻaʻole paʻakikī ke hōʻoia i ka maikaʻi.

2. Pono ka mahana a me ka manawa o ke kuʻi ʻana.

Ke ʻaʻahu like ka mea kūʻai aku, hoʻomehana ʻia ka mea kūʻai aku a me ka metala solder i ka wela hoʻoheheʻe ʻana i mea e hoʻoheheʻe ʻia ai ka mea hoʻoheheʻe i hoʻoheheʻe ʻia ma luna o ka ʻili o ka metala solder a hana i kahi hui metala.No laila, i mea e hōʻoia ai i kahi hui solder ikaika, pono e loaʻa kahi mahana soldering kūpono.Ma nā wela kiʻekiʻe, hiki ke hoʻomaʻemaʻe ʻia ka solder a hoʻopuehu ʻia e hana i kahi ʻāpana alloy.He kiʻekiʻe loa ka mahana no ke kūʻai ʻana.He mana nui ka manawa soldering i ka solder, ka wettability o nā ʻāpana soldered a me ka hoʻokumu ʻana o ka papa paʻa.ʻO ka hoʻomaʻamaʻa pololei ʻana i ka manawa welding ke kī i ke kiʻekiʻe kiʻekiʻe.

3. Pono e lawa ka ikaika mechanical o na hui solder.

I mea e hōʻoiaʻiʻo ai ʻaʻole e hāʻule nā ​​ʻāpana welded a wehe ʻia ma lalo o ka haʻalulu a i ʻole ka hopena, pono e lawa ka ikaika mechanical o nā hui solder.I mea e loaʻa ai ka ikaika mechanical i nā hui solder, hiki ke hoʻohana maʻamau i ke ʻano o ke kuʻi ʻana i nā pahu alakaʻi o nā ʻāpana soldered, akā ʻaʻole pono e hōʻuluʻulu ʻia ka solder nui, ʻo ia paha ke kumu o nā pōkole pōkole ma waena o ka soldering virtual a me nā pōkole pōkole.ʻO nā hui solder a me nā hui solder.

4. Pono pono ka welding a hōʻoia i ka conductivity uila.

I mea e loaʻa ai ka conductivity maikaʻi i nā hui solder, pono e pale i ka soldering hoʻopunipuni.ʻO ka welding ʻo ia hoʻi ʻaʻohe ʻano huila ma waena o ka solder a me ka ʻili solder, akā pili wale i ka ʻili metala i hoʻopaʻa ʻia.I ka welding, inā hoʻokumu ʻia kahi hapa o ka alloy a ʻaʻole i hoʻokumu ʻia ke koena, hiki i ka hui solder ke hele i kēia manawa i ka manawa pōkole, a paʻakikī ke loaʻa nā pilikia me ka mea kani.Eia nō naʻe, i ka hala ʻana o ka manawa, e oxidized ka ʻili i hana ʻole ʻia, e alakaʻi i ke ʻano o ka wehe ʻana o ka manawa a me ka haʻihaʻi ʻana, kahi e hoʻopilikia ai i ka maikaʻi o ka huahana.

I ka pōkole, ʻo kahi hui solder maikaʻi e pono ai: ʻālohilohi a maʻalahi ka hui solder;ʻO ka ʻāpana solder he ʻano like, lahilahi, kūpono i ka nui o ka pad, a pohō ka outline o ka hui;ua lawa ka solder a hohola i ke ʻano o kahi pale;ʻaʻohe māwae, pinholes, ʻAʻohe koena flux.