He aha ka hopena o ka pale pale kala i ka PCB?

ʻAʻole ʻoi aku ka waihoʻoluʻu o ka papa PCB, ʻoi aku ka maikaʻi.

ʻOiaʻiʻo, ʻo ke kala o ka papa PCB ke kala o ka solder mask.ʻO ka mea mua, hiki i ka mea kūʻai kūʻai ke pale i ka hoʻopili hewa ʻana o nā ʻāpana.ʻO ka lua, hiki iā ia ke hoʻopaneʻe i ke ola lawelawe o nā mea hana, i mea e pale ai i ka oxidation a me ka corrosion o ke kaapuni.

Inā ʻike hou ʻoe e pili ana i ka papa PCB o HUAWEI, Ericsson a me nā hui nui ʻē aʻe, e ʻike ʻoe he ʻōmaʻomaʻo ke kala.No ka mea ʻo ka ʻenehana kala ʻōmaʻomaʻo no ka papa PCB ka mea ʻoi loa a maʻalahi.

Ma waho o ka'ōmaʻomaʻo, he nui nā waihoʻoluʻu o ka PCB, e like me: keʻokeʻo, melemele, ʻulaʻula, uliuli, sub light color, a hiki i ka chrysanthemum, poni, ʻeleʻele, ʻōmaʻomaʻo ʻōmaʻomaʻo, etc. ʻO ke keʻokeʻo ka puaʻa pono no ka hana ʻana o nā kukui a nā kukui.ʻO ka hoʻohana ʻana i nā kala ʻē aʻe ka hapa nui no ke kumu o ka hoʻopaʻa inoa ʻana i nā huahana.ʻO ka PCB e hana ana i nā huahana o ka hui mai R&D a hiki i ke oʻo o ke kahua holoʻokoʻa, e like me nā hoʻohana like ʻole o ka papa PCB, hiki i ka papa hoʻokolohua ke hoʻohana i ka poni, e hoʻohana ka papa kī i ka ʻulaʻula, e hoʻohana ka papa lolouila i ka ʻeleʻele, ʻo ia mau mea a pau. ʻokoʻa a hōʻailona ma ke kala.

ʻO ka PCB maʻamau ka papa ʻōmaʻomaʻo, ʻike ʻia hoʻi ʻo ka ʻaila ʻōmaʻomaʻo, a ʻo kona solder resistance ink ka lōʻihi o ka mōʻaukala, ʻoi loa a kaulana.He nui nā pono o ka aila ʻōmaʻomaʻo ma waho o ka ʻenehana makua:

I ka hana PCB, ʻo ka hana ʻana o nā huahana uila e pili ana i ka hana ʻana a me ka lamination.I loko o kēia manawa, nui nā kaʻina hana e hele ai i loko o ka lumi kukui melemele, a ʻo ka papa PCB ʻōmaʻomaʻo ka hopena ʻike maikaʻi loa i ka lumi kukui melemele.ʻO ka lua, ma ka papa SMT PCB, pono nā ʻanuʻu o ka tinning, lamination a me ka hōʻoia AOI i ka hoʻonohonoho ʻana a me ka calibration, a ʻoi aku ka maikaʻi o ka PCB ʻōmaʻomaʻo i ka ʻike mea kani.

Aia kekahi hapa o ka nānā ʻana i ka nānā ʻana o nā limahana (i kēia manawa ka hapa nui o lākou e hoʻohana i ka hoʻāʻo lele lele ma mua o ka hana lima).Ke nānā mau nei lākou i ka papa ma lalo o ke kukui ikaika, a he haʻahaʻa loa ka pōʻino o ka ʻōmaʻomaʻo i nā maka.ʻOi aku ka maikaʻi o ka papa PCB ʻōmaʻomaʻo, a ma hope o ke kiʻekiʻe ʻana o ka wela, ʻaʻole ia e hoʻokuʻu i nā kinoea ʻona.

ʻO nā kala ʻē aʻe o ka PCB, e like me ka uliuli a me ka ʻeleʻele e doped me ka cobalt a me ke kalapona.Ma muli o ko lākou nāwaliwali conductive, aia kahi pilikia o ke kaapuni pōkole.

E like me ka papa ʻeleʻele, ʻoi aku ka nui o ke kumu o ka ʻokoʻa o ka waihoʻoluʻu ma muli o ke kaʻina hana a me nā pilikia maka i ka hana ʻana, e alakaʻi ana i ka helu defect PCB kiʻekiʻe.ʻAʻole maʻalahi ka ʻike ʻana i ke ala o ka papa kaapuni ʻeleʻele, kahi e hoʻonui ai i ka paʻakikī o ka mālama ʻana a me ka debugging ma hope.No laila, nuiNā mea hana PCB huiʻaʻole i hoʻohana i ka papa PCB ʻeleʻele.ʻOiai ma ke kahua o ka ʻoihana koa a me ka mana ʻoihana, nā huahana me nā koi kiʻekiʻe e hoʻohana i ka papa PCB ʻōmaʻomaʻo.

He aha ka hopena o ke kala ʻīnika kūʻai kūʻai ma ka papa PCB?

No nā huahana i hoʻopau ʻia, ʻike nui ʻia ka hopena o nā ʻīnika like ʻole ma ka papa i ke ʻano.No ka laʻana, ʻo ka ʻōmaʻomaʻo ka lā ʻōmaʻomaʻo, ʻōmaʻomaʻo māmā, ʻōmaʻomaʻo ʻeleʻele, ʻōmaʻomaʻo matte a pēlā aku.Inā māmā loa ke kala, Ma hope o ke kaʻina hana puka plug, e ʻike ʻia ke ʻano o ka papa.Loaʻa i kekahi mau mea hana nā pilikia inks, resin a me ka lākiō kala, a loaʻa nā ʻōhū a me nā pilikia ʻē aʻe E ʻike i nā loli liʻiliʻi.No nā huahana semi-finished, ʻike nui ʻia ka hopena i ka pae o ka paʻakikī i ka hana ʻana.He mea paʻakikī kēia mau nīnau e wehewehe.He ʻokoʻa nā kaʻina kala ʻokoʻa o nā ʻīnika kala like ʻole, me ka hoʻoheheʻe electrostatic, ka hoʻopuʻi ʻana a me ka paʻi pale, a ʻokoʻa hoʻi ka ratio inika.Inā he hapa iki, hele hewa ke kala.

ʻOiai ʻaʻohe mana o ka waihoʻoluʻu inika ma ka papa PCB, ʻoi aku ka mana o ka mānoanoa inika i ka impedance.ʻOi loa no ka papa gula wai, ʻo ia ka mana o ka mānoanoa o ka inika.ʻO ka'īnikaʻulaʻula, ka mānoanoa a me nā'ōhū he mea maʻalahi ka hoʻomaluʻana, a hiki i ka'īnikaʻulaʻula ke uhi i kekahi mau hemahema ma ke kaapuni, iʻoi aku ka maikaʻi o ka nānāʻana, akāʻo ka hemahema,ʻoi aku ka pipiʻi.I ke kiʻi ʻana, ʻoi aku ka paʻa o ka ʻulaʻula a me ka melemele, a ʻo ke keʻokeʻo ka mea ʻino loa e hoʻomalu.

I ka hōʻuluʻulu manaʻo, ʻaʻohe mana o ke kala i ka hana o ka papa i hoʻopau ʻia, a he liʻiliʻi ka hopenaSMT PCBpapa a me nā loulou ʻē aʻe.Ma ka hoʻolālā PCB, ʻo ka mālama pono ʻana i nā kikoʻī āpau i kēlā me kēia loulou ke kī i kahi papa PCB maikaʻi.ʻO nā kala like ʻole o ka papa PCB, ʻoi aku ka maikaʻi o ka nānā ʻana o ka huahana, ʻaʻole mākou e ʻōlelo i ke kala ma ke ʻano he mea nui i ka hana PCB.