ʻO ka substrate alumini he laminate keleawe i hoʻopaʻa ʻia me ka hana hoʻoheheʻe wela maikaʻi. He papa-like mea i hana ʻia me ka lole uila aniani a i ʻole nā mea hoʻoikaika ʻē aʻe i hoʻopili ʻia me ka resin, ka resin hoʻokahi, a me nā mea ʻē aʻe ma ke ʻano he insulating adhesive layer, uhi ʻia me ka foil keleawe ma kekahi ʻaoʻao a ʻelua paha a kaomi wela, i kapa ʻia he alumini- paʻa ʻaʻahu keleawe . Hoʻokomo ʻo Kangxin Circuit i ka hana o ka substrate aluminika a me ka mālama ʻana i nā mea.
Aluminum substrate hana
1.Excellent wela dissipation hana
ʻO nā pāpaʻi keleawe i hoʻopaʻa ʻia i ka alumini he hana hoʻopau wela maikaʻi loa, ʻo ia ka hiʻohiʻona koʻikoʻi o kēia ʻano pā. ʻO ka PCB i hana ʻia ʻaʻole hiki ke pale wale i ka mahana hana o nā ʻāpana a me nā substrates i hoʻouka ʻia ma luna o ka piʻi ʻana, akā wikiwiki hoʻi ka wela i hana ʻia e nā ʻāpana mana amplifier, nā mea mana kiʻekiʻe, nā hoʻololi mana kaapuni nui a me nā mea ʻē aʻe. Ua puunaue ia no kona ano liʻiliʻi, kaumaha kaumaha (2.7g/cm3), anti-oxidation, a me ka cheaper kumu kūʻai, no laila, ua lilo ia i ka loa versatile a me ka nui loa o ka composite pepa i ka metala-ma muli o ke keleawe aahu laminates. ʻO ke kūpaʻa wela saturated o ka substrate alumini insulated he 1.10 ℃ / W a ʻo ke kūpaʻa wela ʻo 2.8 ℃ / W, kahi e hoʻomaikaʻi nui ai i ka manawa fusing o ka uea keleawe.
2.E hoʻomaikaʻi i ka maikaʻi a me ka maikaʻi o ka mīkini
Loaʻa ka ikaika mechanical a me ka paʻakikī o nā laminates i hoʻopaʻa ʻia i ka alumini, ʻoi aku ka maikaʻi ma mua o nā laminates copper-clad a me nā substrate seramika. Hiki iā ia ke hoʻomaopopo i ka hana ʻana o nā papa i paʻi ʻia ma luna o nā substrate metala, a kūpono loa no ka kau ʻana i nā mea kaumaha ma luna o ia mau substrates. Eia kekahi, he maikaʻi ka palahalaha o ka substrate aluminika, a hiki ke hōʻuluʻulu ʻia a hana ʻia ma ka substrate ma ka hammering, riveting, etc. ʻAʻole hiki ke hoʻopaʻa ʻia i ka laminate copper clad.
3.High dimensional paʻa
No nā laminates ʻaʻahu keleawe like ʻole, aia kahi pilikia o ka hoʻonui wela (dimensional stability), ʻoi aku ka nui o ka hoʻonui ʻana i ka wela ma ke kuhikuhi mānoanoa (Z-axis) o ka papa, e pili ana i ka maikaʻi o nā lua metala a me nā uea. ʻO ke kumu nui, heʻokoʻa ka hoʻonui laina laina o nā papa, e like me ke keleawe, a me ka hoʻonui laina laina o ka epoxy glass fiber cloth substrate he 3. Heʻokoʻa loa ka hoʻonui laina o nā meaʻelua, he mea maʻalahi ke kumu o ka ʻokoʻa i ka hoʻonui ʻana i ka wela o ka substrate, e hoʻopōʻino ai ke kaapuni keleawe a me ka lua metala. ʻO ka laina hoʻonui laina o ka alumini substrate aia ma waena, ʻoi aku ka liʻiliʻi ma mua o ka substrate resin maʻamau, a ʻoi aku ka kokoke i ka coefficient hoʻonui laina o ke keleawe, kahi kūpono e hōʻoia i ka maikaʻi a me ka hilinaʻi o ke kaapuni paʻi.
ʻO ka hoʻomaʻamaʻa ʻana i ka ʻili o ka alumini substrate mea
1. Deoiling
Hoʻopili ʻia ka ʻili o ka pā i hoʻokumu ʻia i ka alumini me kahi papa ʻaila i ka wā o ka hoʻoili ʻana a me ka lawe ʻana, a pono e hoʻomaʻemaʻe ʻia ma mua o ka hoʻohana ʻana. ʻO ke kumu o ka hoʻohana ʻana i ka ʻaila (general aviation gasoline) ma ke ʻano he mea hoʻoheheʻe, hiki ke hoʻoheheʻe ʻia, a laila hoʻohana i kahi mea hoʻomaʻemaʻe wai e hoʻopau i nā ʻaila. E holoi i ka ʻili me ka wai kahe e hoʻomaʻemaʻe a ʻaʻohe kulu wai.
2. Degrease
ʻO ka substrate alumini ma hope o ka hoʻomaʻamaʻa ʻana ma luna aʻe, ʻaʻole i wehe ʻia ka momona ma ka ʻili. No ka wehe loa ʻana, e hoʻoinu iā ia me ka sodium hydroxide alkali ikaika ma 50°C no 5 mau minuke, a laila holoi me ka wai maʻemaʻe.
3. Alkaline etching. ʻO ka ʻili o ka pā alumini e like me ke kumu kumu e loaʻa i kahi ʻano ʻino. No ka mea, ʻo ka substrate aluminika a me ka papa kiʻi ʻoniʻoni aluminika ma luna o ka ʻili he mau mea amphoteric ʻelua, hiki i ka ʻili o ka waihona kumu alumini ke hoʻoheheʻe ʻia me ka hoʻohana ʻana i ka ʻōnaehana hoʻonā alkaline acidic, alkaline a composite. Eia kekahi, pono e hoʻohui ʻia nā mea ʻē aʻe a me nā mea hoʻohui i ka hopena roughening e hoʻokō i nā kumu aʻe.
4. ʻO ka hoʻomaʻamaʻa ʻana i nā kemika. No ka mea he mau metala haumia ʻē aʻe ka waihona kumu alumini, maʻalahi ka hana ʻana i nā pūhui inorganic e pili ana i ka ʻili o ka substrate i ka wā o ke kaʻina hana, no laila e nānā ʻia nā pūhui inorganic i hana ʻia ma ka ʻili. Wahi a nā hualoaʻa, e hoʻomākaukau i kahi hoʻonā kūpono kūpono, a kau i ka substrate alumini roughened i loko o ka hopena dipping e hōʻoia i kekahi manawa, i maʻemaʻe a ʻālohilohi ka ʻili o ka pā alumini.